C-Thru Straight Eave Sunroom Manufacturer’s Installation Guidelines

Straight Eave Sunroom Intro:

Manufacturer’s Installation Guidelines

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Rev 030515 All contents and images are copyright 2015© C-Thru Industries.



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Introduction:

C-Thru recommends that you review this manual thoroughly prior to your installation. These Installation

Guidelines should be used as a reference tool during the room construction process. Technical and installation questions can also be addressed by the C-Thru Customer Service Department. If this is a home owner DIY installation, please contact the Dealer you purchased the kit from.

C-Thru Industries is a material supplier only. It is the responsibility of the homeowner, contractor/dealer, or the installer to make sure that the C-Thru room complies with the requirements of local building codes. C-Thru provides a variety of engineering for permitting purposes. Rooms designed within the scope of these engineering documents meet or exceed the current IBC, IRC and CBC building codes.

Before

After




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Table of Contents:

Section 1: Tools.............................................................................................

Section 2: Job Site Preparations: ..................................................................

Section 3: Material Delivery: ........................................................................

Section 4: Attachment Channels: .................................................................

Section 5: Bottom Track Installation: ............................................................

Section 6: Roof Attachment Channel Installation .........................................

Section 7: Wall Attachment Channel Installation .........................................

Section 8: Front Wall Installation .................................................................

Section 9: Roof Installation ...........................................................................

Section 10: Side Wall Installation .................................................................

Section 11: Door Installation ........................................................................

Section 12: Electrical Wiring .........................................................................

Section 13: Final: Details & Clean Up ............................................................

Section 14: Care & Maintenance ..................................................................

Appendix A: Part Profiles & Connection Details ...........................................


Section 1: Tools:


Your installation will go smoother when you have the proper tools. Before you begin the installation, please make sure you have the recommended tools

Power Tools:

· 12” Compound Miter Saw (60-80 Tooth

Carbide Blade)

· Worm Drive Circular Saw (24 Tooth Carbide

Blade)

· 10” Circular Saw (60-80 Tooth Carbide Blade)

· ½” Hammer Drill

· ½” Hole Shooter

· 14.4 Volt Drill/Driver (Variable Speed, Torque

Setting)

· Reciprocating Saw (Sawzall)

· Rotozip Spiral Saw

Miscellaneous Tools:

· Adjustable Framing Square

· Power Strip

· Extension Cord(s)/GFI Pigtail

· Chalk Line

· Putty Blade (1” & 3”)

· Measuring Tape (30’ & 50’)

· Caulking Gun

· Nail Set

· Holster For Cordless Drill

· Gloves

· Safety Goggles

· Tool Box (for misc. fasteners)

· Extrusion Profile Sheet

· Installation Manual

· Shop Vacuum

Drill Bits

· Magnetic Bit Holder w/#2 Phillips Bit

· 2” or 3” Phillips Bit Extension

· Magnetic Nut Setters (1/4”, 5/16”, 3/8”)

· ¼”, 9/64”, 3/16” Drill Bits

· ¼” Masonry Bit

· 5/8” Wood Boring Bit

1 and that they are working in a safe and efficient manner.

Hand Tools:

· Pop Rivet Gun

· 16 Oz. Rubber Mallet

· 16 Oz. Hammer

· Chisel

· Utility Knife

· Flat & Phillips Head Screwdrivers

· Pliers

· Flat Head Vise Grips

· Needle Nose Pliers

· 4’ & 2’ Level

· Tin Snips

· Step Ladders 4’ (a taller ladder may be useful)

· Tool Belt W/Nail Bag

· Chalk & Carpenter’s Pencils


Section 2: Job Site Preparations:


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Room Foundation:

The C-Thru Room Order Layout sheet will list the dimensions of the room. The dimensions needed for the slab or deck are the room dimensions plus min. 1 ½". Thus, if your room dimensions are 10' X 12', the foundation must be a minimum of 10'-1 ½” x 12’-3”.

Many potential problems can be eliminated before any construction begins by having a level and square slab or deck. If installing the room on a new concrete slab, it may be necessary to seal the slab. This will help avoid condensation form within the room. Preferably, the room should be installed on a new slab or deck. A pre- existing slab or deck needs to be in "like new" condition if used. Numerous buckles or cracks in the foundation will make it unsuitable for construction and could contribute to future leaks in an otherwise weather-tight system. Please reference your local building code for the slab, deck, or footing requirements needed to construct your C-Thru room.

Use a 4' level to determine the degree of the foundation's slope. If the foundation is not level and the run off the slab is less than 1 1/2 inches, then 2" to 3" of solid fill should be ordered at the bottom of each wall module with a glass kick plate to compensate for the slope. If the slab or deck is uneven to a larger degree, a two-stage kick plate or extra solid may be necessary to construct the room. Two-stage kick plates generally have a minimum of

2" of solid below the glass kick plate. Modules with solid kick plates generally provide the most flexibility in dealing with non-level slabs.

The room's foundation must be higher than the grade of the surrounding area to avoid drainage problems. The bottom track that will be secured to the foundation contains weep holes. Any water that penetrates the structure of the sunroom will drain out of these weep holes and away from the room. Standing or pooling water next to the weep holes could potentially block them and destroy the functionality of the internal weep system.

The general work area must be kept as organized and clean as possible. Make sure the area is free from clutter or debris before the room arrives. Potential obstruction must also be removed. These include trees, bushes, or other greenery that could make the construction of the room difficult. If needed, clean the slab or deck before construction begins. You should try to keep the construction area free from excess material, tools, or debris during all phases of construction.

Preparation of the house walls may also be needed. Examine the attachment "foot print" of the room on the house and identify any elements that may need removal, demolition, adjustment or repair.

The Job Site Preparation Checklist should be used as a checklist to ensure your site is ready for the room's arrival. Once completed, you can begin the installation process.




SITE CONDITION

Yes No

Check accessibility - can materials be delivered easily?

Yes No

Are there fences or other interferences which must be removed for access?

Complete

Check the following for interference:

Sprinklers Underground Utilities Air Conditioners

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Telephone Lines Electric Meters

Water Pipes Gas Pipes

Exhaust Vents

Meters

Yes No

Check the roof connection, ridge connection, etc.

Yes No

Does the eave or soffit need modifications or repairs?

Yes No

Will the existing gutter and downspouts need to be modified or repaired?

Yes No

Is there existing drainage which can be connected to (French drain, street drain etc.)?

Complete

Roof type:

Shingle Tile Tar/Gravel

FOUNDATION / FLOOR

Yes No

Does the natural slope carry water away from the new foundation?

Yes No

Measure the drops and clearances for cap-overs and slabs (2”-3" min)

Complete

Can Concrete be poured manually or does the job require a pump?

Manual Pump

Complete

If excavating soil is required, will the dirt be used or hauled out?

Used Hauled

Yes No

If a raised floor is specified, is there adequate crawl space?

Yes No

Carefully measure the property drop dimension - are steps/landings required?

Yes No

Are existing steps and landings to code?

Yes No

Determine proper projection of foundation, from house wall or foundation




CONNECTION

Yes No

Are there interferences at the attachment points (doors, windows, etc…)?

Yes No

Verify height connection. Is it adequate for proper connection?

Yes No

Does the eave need to be removed or modified?

Yes No

Does the exterior wall need to be modified (sheetrock, siding, stucco…)?

DEMOLITION

Yes No

Will the existing siding be removed?

Yes No

Is the site clean-up and debris removal included?

Yes No

Any modification to existing wall for opening, doors and windows?

Yes No

Will the existing headers carry the loads of the new openings?

ELECTRICAL CONNECTION

Yes No

Is there enough service at the panel for the new addition? (100 amp recommended, check at main panel)

Yes No

Is there room in the panel for additional breakers or wafers?

Complete

Can the home run be concealed or will exterior conduit be needed?

Concealed Exterior Mounted

Yes No

Determine location of sub-panel, interior wall, exterior wall, closet and how the new home run will be routed. Will it be difficult to run?

(If an exterior run is required, document and obtain sign off from owner)

HVAC (Optional)

Yes No

Is the existing system adequate to support the new addition?

Yes No

Can you connect to the existing ducts/registers?

Yes No

If additional unit is to be installed, check electrical and duct routing.

INTERIOR / EXTERIOR

Yes No

Is painting included in the proposal?

Yes No

Does the owner have matching paint on hand?

Yes No

Will the connecting wall be stripped of siding, etc.?

Yes No

Is drywall included in the proposal?


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Section 3: Material Delivery:


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The construction process begins when the room arrives to the jobsite. Identifying, organizing, and planning at this stage may save hours on the installation. Use the following checklist during material delivery to help speed along the construction process.

1. If the room is packaged for LTL shipping, make sure you receive all the boxes. A total box count can be found on the bill of lading. Note any missing pieces on the bill of lading. Take pictures of the load upon arrival.

2. Inspect the material for damage. Note any damaged boxes or parts on the bill of lading. Note that the packaging is designed to sustain some abuse during transport. Although the packaging may be damaged, the material inside may be intact.

3. If you do not plan on immediately installing the room, remove some of the packaging for ventilation.

See the packing stickers for important maintenance and storage information i.e. Do not store

packaged/unvented vinyl in direct sunlight or at angle so as to prevent the sun from warping or distorting vinyl parts prior to installation of these parts.

4. When unloading, organize all similar materials together. Place them in a readily accessible area so you can easily select the appropriate materials needed for each step of the installation process.

5. Inventory all the materials that have arrived. You can refer to the C-Thru layout and cut list for the parts. These documents should arrive with your room and will give important information about the particular room being installed. The information includes room dimensions, extrusion cut sizes, and module locations. Keep these documents accessible during all steps of the installation process.

6. The room materials should be placed outside the perimeter of where the room is being built.

7. Be sure to place the material in a hazard-free area, as damage on the job site is not covered under your warranty and is subject to replacement costs.

8. Window inserts and screens are shipped within the wall modules. Remove them from the modules and store in a safe cool location for future installation.

9. In the unlikely event of an error or missing pieces, contact C-Thru as soon as possible. Every effort will be made to expedite replacement parts to help avoid job shutdowns.

10. Figure 01 is an example of a job site in which the materials have been separated, organized and are ready for installation.

Figure 01


Section 4: Attachment Channels:


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Identifying and Inspecting Materials:

Your room will be attached to the existing structure and foundation with a series of attachment channels. The following is a brief list of the attachment channels needed and the items required for their installation:

1. Bottom Track (Figure 01): affixed to the slab or deck. The walls of the sunroom will rest in the bottom tracks.

2. Wall Channel (Figure 02): affixed to the existing structure's walls. Used to attach the side walls of the room to the structure.

3. Roof Attachment Channel (Figures 03) affixed to the existing structure above the wall channel. Used to attach the sunroom rafters to the existing structure.

4. Anchors: When attaching to wood applications, use 3 ea. 14g SST wood screws. When attaching to concrete applications, use Hilti 3/8" Kwik Bolt II or approved equals (refer to ICC-ES Report #4627 for acceptable fasteners substitutes)

5. Sealants: Premium Silicone Caulking.

Figure 01

Figure 02

6. Metal flashing may also be required. See roof attachment (Section 5) for flashing details.

Additional flashing may also be needed at the bottom track and wall channel.

7. Carpenter's pencil and chalk line.

Once the proper materials have been identified, inspect that they are free from damage. Many of C-Thru's extrusions will contain a screw guide. The screw guide is a line etched into the extrusions that can be used as a guide for fastener placement.

Figure 03


Section 5: Bottom Track Installation:


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Note: The most important part of any room installation is to make sure the room is square to the house. This is essential in the installation process.

Room wall and roof dimensions and heights can be found on the C-Thru Room layout sheet. The C-Thru Room layout is the original drawing that the room was confirmed with. The layout sheet is divided into two sections, wall system and roof. The wall drawing will show the three sections of the walls from the perspective of

standing outside the room. Thus, the left wall of the room is found in the upper left corner of the sheet. The wall height listed is the module height. It does not include the bottom track height, header beam height or the height of the roof. You must take this into consideration when determining your overall attachment height.

The wall projections listed on the sheet are exterior to exterior dimensions and include the measurements of the wall tracks and corners. Use this layout sheet as a reference when placing your tracks and attachment channels.

1. Squaring the Slab or Deck

Once the site preparations are complete, measure the slab or deck to make sure it has been constructed to support the dimensions of the sunroom. The room dimensions are found on the C-Thru room layout sheet. In addition, make sure the slab or deck is plumb and square. Measure the diagonals "A" and "B" as shown in

(Figure 01) They should be the same distance apart.

Figure 01




2. Marking the Width of the Room

Indicate the width of the room at the house wall and mark it on the foundation. This measurement should match the front wall width on the room layout sheet. See (Figure 02).

Figure 02

Note: Measure diagonal lines from the opposite corners of your chalk lines. Lines "E" and "F" in Figure 02 should be equal and would therefore indicate that your chalk lines are square.

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3. Outlining the Footprint of the Room

The sidewall measurements can be found on the C-Thru room layout sheet. Snap a chalk line where the exterior side of the bottom track will be attached to the foundation for the left, right and front wall. See Detail

D in Figure 03. These chalk lines will indicate where the sidewalls and the front walls will intersect (Figure 03).

A 45-degree cut will have to be made at these intersections to the bottom track. Once again, the dimensions provided on the C-Thru room layout are exterior dimensions and should match those chalked on the foundation.

Figure 03

4. Cutting the Bottom Track

The bottom tracks for your job will arrive in stock lengths. They will need to be measured for the correct size and cut to length. These measurements can be confirmed on the C-Thru room layout as well as the chalk lines on the foundation. As a rule of thumb, measure twice and cut once.

Make 45-degree cuts on the bottom tracks were front and side wall tracks meet. These cuts should fit tightly at the intersections of the front and side walls see (Figure 03).

NOTE: MAKE SURE THE WEEP HOLES ARE FACING OUTWARD, PRIOR TO CUTTING THE BOTTOM TRACKS!




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5. Pre-Drilling the Bottom Track

The bottom track will be attached to the foundation using fasteners. Fasteners must be positioned on the bottom track where each module joins the next (module joint mullion). The location & distance between each module joint can be found on the C-Thru room layout sheet. Mark the location of each joint on the bottom track. At each module joint, predrill two ¼" holes about 3" apart down the center screw line of the bottom tracks as shown in (Figure 04). There is a sealant reservoir on the under portion of the bottom track that separates the interior and exterior half of the bottom track, it looks like a "fin."

If properly sealed, the sealant reservoir will prevent water from penetrating the room from under the bottom track. You will need to make sure the holes are drilled center of the extrusion

(see Figure 05).

Figure 04

Figure 05




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6. Pre-Drilling the Foundation

Place the outside of the bottom tracks on the foundation and line them up with the chalk lines. First, drill into the foundation with a masonry bit (for concrete) or regular drill bit (for decks) through the first hole that is closest to the house wall in each sidewall bottom track. Temporarily secure each side wall bottom track to the foundation with one lag screw or nail set. This temporary attachment will act as a fixed pivot point to square the bottom track. Once the bottom track is square, drill the remaining foundation holes needed to anchor the bottom track. Once all foundation holes are drilled, remove the bottom track and clear the debris left from the drilling with a broom or shop vacuum.

Note: Use the appropriate bits and fasteners for wood or concrete applications.

7. Sealing and Attaching the Bottom Track

Once the bottom tracks have been cut, pre-drilled, and the foundation holes predrilled, the bottom tracks are ready to be attached to the foundation. Turn the bottom track upside down and run a bead of caulk in the sealant reservoir see (Figure 06). You should also bead over the drill holes you have made. Place the bottom track back next to your chalk line and begin anchoring the bottom track. Remember, the chalk line should line up with the exterior of the bottom track. Seal the corners of the bottom track and the top of the fasteners with silicone sealant as well as any mitered corners. be sealed with an "L" metal flashing and silicone (Figure 06).

Figure 06

Note: A polyurethane sealant may be substituted to seal bottom tracks to concrete. Wood foundations should




8. Finishing Bottom Track

Repeat this process for all bottom track attachments. When finished, the bottom track should look like

(Figure 07).

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Figure 07


Straight Eave Roof

(Figure 01).

Section 6: Roof Attachment Channel Installation:


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Figure 01

1. Marking the House Wall

The attachment channel placement height can be determined by using the C-Thru room layout sheet. The maximum attachment height is the module height (wall height), plus ½" for the bottom track, plus the roof attachment channel height. The roof attachment channel height will be determined by the thickness of the roof,

3” for single- glass roof, and 4” for dual glass roof. Transfer the maximum attachment height onto the house wall for roof attachment channel placement. Using a chalk line mark the maximum attachment height on the house wall (Figure 02). This chalk line will mark the upper most edge of the roof attachment channel. Locate studs in the house wall (approximately every 16") and mark their location just above the maximum attachment chalk line. Remember not to go beyond the widths of the wall attachment channel.




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Figure 02

Note: It is important that the pitch of the roof is a MINIMUM of 1/2" in 12" unless specified otherwise by your local building municipality. If the pitch to the roof is not in accordance with the pitch dictated by your local municipality, the warranty may become null and void.

2. Counter Flashing

Counter flashing may be required when installing the attachment channel. When attaching to a wall with siding, it may be necessary to remove a course of siding or cut a groove in the house wall so that the counter flashing may be attached under the felt paper behind the siding. (Figure 03) shows two examples of counterflashing the roof attachment channel.

Figure 03




3. Cutting and Pre-Drilling the Attachment Channel

The roof attachment channel will arrive in stock lengths. The overall roof width is listed on the C-Thru layout sheet, measure twice and cut the roof attachment channel to the correct length.

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

Figure 04

Note: The glass roof attachment channel will be the exact width of the room.

Temporarily place the roof attachment channel(s) on the house wall and mark the location of the studs onto the attachment channel. Pre-drill two ¼" holes in the roof attachment channel at each of these "stud location" marks. See (Figure 04) for the vertical spacing of the pre-drilled holes for each roof extrusion thickness.

Note: On thermally broken attachment channel, a fastener must be alternately placed above and below the thermal break.




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4. Sealing and Securing the Attachment Channel

Tip: Now is the best time to cut the front wall header beam. Cut the front wall header beam to the same length as the roof attachment channel.

Apply silicone or caulking to the back of the channel, as shown in (Figure 05). The roof attachment channel will be attached to the house wall with lag screws. Use two 5/16" diameter lag screws (at least 2.5" in length) through the predrilled holes of the roof attachment channel to secure to the studs on the house (Figure 05).

Use your 4' level and framing square to ensure that the roof attachment channel is level, plumb, and square to the bottom track. You may have to account for any small variances of slope of the foundation during this process.

FASTENERS ON

ATTACHMENT CHANNEL

Figure 05

Note: For stucco walls, caulk the back of the attachment track with sealant and secure with 3 ½" lag screws.

On house walls with siding, secure the attachment track just under the counter flashing.


Section 7: Wall Attachment Channel Installation:


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1. Measuring and Cutting Wall Attachment Channel

The last attachment channels to be secured are the wall channels to allow you to secure the room sidewalls to the house. Each room wall module will rest on a lip found on the inside of the bottom track. This lip must be taken into consideration when measuring for the wall channel cut lengths.

Note: Measure from the lip within the bottom track to the top of the roof attachment channel. Cut the top of the wall attachment channel to the roof attachment channel’s profile (Figure 01, Detail

“A”).

2. Notching the Wall Channel

Cut a notch so that the outside face of the wall channel covers the outside edge of the roof attachment channel. See (Figure

02) for notch detail. Repeat this for the other wall channel.

Figure 01

*Notched Wall Track *Install ½”x 3/4” Filler Block *Finished Look w/ Clad

Figure 02


Section 7: Wall Attachment Channel Installation:


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Note: In applications under an existing roof or in between two posts (where the module spacing will be very tight) it may be necessary to cut the wall channel into 2 pieces in order to fit the module(s) into place. The fin will be re-attached once the module is in place.

3. Checking for Square

Place the wall channel inside the bottom track at the house wall and plumb it with a level. Place a mark on the house wall at the outside of the wall channel. Do the same for the other sidewall attachment. Measured from mark to mark, the dimension should be the same as the front wall width (Figure 03).

Note: Before attaching wall channel, you will need to remove cladding tits so wall track can slide into the bottom track see

(Figure 04).

4 Pre-Drilling, Sealing, and Securing the Wall

Channel

Molly bolts will be used to attach the wall channel to the house. Starting at the uppermost end of the wall channel, mark your first location for attachment. Continue to mark fastener locations every 16 inches. Remove the channel and predrill

¼" holes into the wall channel at each mark.

Before bolting, seal the wall channel by placing a bead of sealant center of the back of the extrusion

(Figure 05). Use polyurethane or silicone, depending on the material of the house wall.

Note: Expanding plastic plugs may be used to secure the bolts to a stucco wall.

Figure 03

Figure 04

Figure 05


Section 8: Front Wall Installation:


1. Preparing for Installation

Wall modules for the room are individually numbered and will correspond with the module numbers listed on the C-Thru room layout sheet. The work order number and the module number can be found on the inside web of the mullion for each module (Figure 01). Remember that the number 1 module is usually not the first module in the front wall.

Refer back to the room layout sheet for the correct module numbers for the front wall. It is important that you identify which modules go to which walls as module heights and widths will vary.

Figure 01

A. When placing modules in the bottom track, make sure the weep holes are facing outward.

Figure 02

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B. On concrete foundations and deck applications, the foundation may not be level. Place a 4' level on the inside edge of your front wall bottom track to determine if the foundation is level. If there is a slight slope, you may have enough solid material on the kick plate to trim, compensating for the slope (Figure 02). C-Thru does not recommend this as a norm for sloppy foundation work as this could create problems as the installation continues. If the slope is not uniform, then each module must be cut separately, adding the adjustment for each module cut size to the next module. Not all modules are the same width; therefore each cut must be made according to the size of the individual module.

Note: It is essential that the window frames and the tops of the modules maintain a continuous level surface.

The windows will not operate properly unless the modules and the window frames are level and square.

This must be taken into consideration when cutting the solid kick plates to adjust for slopes.

Note: The 2 stage kick plate (glass with solid base trim) gives the ability to install glass kick plates while using an existing out-of-level concrete slab or deck.


the center module of the front wall and move outwards. The solid fill on either side of the front wall should be equal in width as to create a balance to the room. The C-Thru room layout sheet will have the correct cut size for solid fill.

It will not be necessary for the solid fill to terminate perfectly equal to the inside lip of the sidewall bottom track, as the inside and outside corners will conceal it and compensate

Section 8: Front Wall Installation: 2


2. Beginning the Front Wall

Once the front wall module kick plates are trimmed to compensate for the slope of the slab, place the first module (without the window inserts) into the bottom track (Figure 03, Detail "A"). Start at the left side looking towards the house. The leftmost end of the module should line up to the inside corner of the sidewall bottom track. Slide the module into the bottom track making sure that it slides snugly in the track. In the event that the kick plate catches the lip of the bottom track, use a putty knife to slide it in (silicon spray can be used to help allow the modules to slide into place). Do not fasten the module at this point to allow for adjustability.

Note: If the room layout calls for solid fill at the ends of the front wall, start at

Figure 03

for any gap.

Tip: A helper may be useful at this point to hold the modules up. You may also support the front wall with a temporary rafter.

3. Installing the Second and Subsequent Modules

The next module will slide in identically as the first. Each wall module contains a male utility mullion extrusion on one side and a female utility mullion extrusion on the other side (Figure 03, Detail "B"). Utility mullion males and females are designated on the C-Thru room layout sheets with UM and UF. These two extrusions mate to form a complete utility mullion between each module. Exceptions may occur at the house wall, next to solid, or corners where a regular female extrusion may be found. Female extrusions are identified with an F on the room layout sheet. Once in the track, a soft mallet may be used to nudge the second module to interlock with the first

(silicone lubricant may be helpful). Continue as needed to assemble the front wall. Place all of the modules in the front wall without fastening them.


each module. Be sure to mate a male and female utility mullion together for a proper fit. For the

Omega (vinyl) system, snap in several scrap pieces of utility mullion cladding on both sides of the utility mullions to temporarily hold the width of the mullion. A sheet metal screw or Pop rivet will be needed every 24" to attach both sides of the utility mullion



Note: The front wall will need to be aligned so the end modules line up with the inside corners of the sidewall bottom track.

IMPORTANT! THE MODULES AND THE WINDOW FRAMES MUST BE PERFECTLY LEVEL AND PLUMB IN ORDER FOR

THE WINDOWS TO OPERATE PROPERLY. BEFORE PROCEEDING, TEST EACH MODULE WITH THE WINDOW

SASHES TO MAKE SURE THE WINDOWS FIT AND LOCK PROPERLY.

4. Fastening the Wall Modules

Together

You will be attaching the modules together by the utility mullions affixed on either end of

Figure 04

together. Use #8 x 1/2” tek screws (Figure 04). Vinyl cladding will be added on top of the utility mullion during any electrical wiring installation section of this manual.

5.Fastening the Wall Modules to the Bottom Track

The modules will be fastened with #8 x 1/2” tek screws at the base where the vertical mullions and bottom track intersect. Use the guide line (Figure 04) in the bottom track to place the screws. Fasten two sheet metal screws per utility mullion connection at the base on the room’s exterior.

6. Adding Solid Fill

The C-Thru Room Layout Sheet will note solid fill or window modules on the corners of the front wall. If the front wall requires solid fill, refer to the layout for the cut size of the solid fill. You can double check this measurement by measuring from the inside of the "H" channel of the module to the inside corner of the bottom track for the width, and the height of the module for the height (both sides may be slightly different to account for the slope of the foundation). Cut the solid material and place it on the sides of the front wall.




7. Cutting and Attaching the Header Beam

Once all the modules on the front wall have been attached to each other, you will need to attach the header beam. The header beam will arrive in stock lengths and will need to be cut to size. Measure the distance along the front wall modules from end to end and add 6-¼ inches to this measurement. This will be the cut length for the electrical header beam. Cut header beam to length (Figure 05).

Note: Place the header beam on the front wall, and make sure each end hangs 3-1/8" over the edge on each side.

Note: Make sure once the header clad is snapped into place on rooms having glass trapezoids or transoms that the clad doesn’t encroach into the glass area.

Place two sheet metal screws at each utility mullion and electrical header beam junction (just like for the bottom track), using the screw guide lines on the header beam.


Section 9: Roof Installation:


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Note: Do not fasten the wall modules or the header beam until specified to do so.

Note: A temporary roof rafter or assistant may be used to support the front wall during this process.

1. Cutting and Placing the Header Beam

Once all the modules on the front wall are in place, use a level to make the front wall plumb. The header beam will arrive in stock lengths and will need to be cut to size. Measure the distance from end to end on top of the front wall modules and add 6-¼ inches to this measurement. This will be the cut length for the electrical header beam, which should equal the length of the front wall bottom track. Cut header beam to length.

Note: Center the header beam on the front wall, and make sure each end hangs 3-1/8" over the end modules on each side. DO NOT FASTEN THE HEADER BEAM AT THIS TIME.

2. Measuring and Cutting the Outside Rafters

Note: Stock rafter lengths are calculated and cut to the maximum slope of 3" in 12" for your room. If the slope of your room is less than 3" in 12", you will have to trim the rafter ends.

Note: The sunroom may have arrived with rafter stiffeners to allow for greater spans. These must be placed within the rafters prior to their installation.

Make sure that the front wall modules are plumb and level. Starting from the left side, determine the cut size for the first rafter by measuring from the backside of the roof attachment channel to the outside of the front wall header beam. Add 1" to this measurement, and cut the rafter to length. the rafter should overhang the header beam just enough so that the exposed rafter ends can be covered with a “C” channel or gutter (Figure 01).

Dual glass roof systems will come with a 4" gutter. Single glass roof systems will come with a “C” channel. The bottom edge of the roof or gutter should be sealed against the header beam.

Note: Do not attach the “C” channel or gutter yet.

4” GUTTER

Figure 01

3. Attaching the First Rafter

Place the first rafter into the roof attachment channel so that the outside of the rafter sits flush with the wall attachement channel and the front wall header beam (Figure 02). Fasten the rafter using two #12 x 1" tek screws from the underside of the roof attachment channel, so that they attach into the grooved seams of the rafter. At the opposite end, fasten the rafter from the underside of the header beam using two #8 x 3/4" tek screws (Figure 03).




2

Rev 032515

Note: the subsequent rafters will need to be spaced 48-5/8” apart (for 48” glass roof bays) or 42-5/8” apart (for

48” glass roof bays) center to center. Make sure the subsequent rafters will be spaced correctly so that the outside final rafter sits flush with the outside of the header beam and the wall attachment channel.

All contents and images are copyright 2015© C-Thru Industries.

Figure 02



3

Figure 03

4. Cutting and Attaching theSubsequent Rafters

Using the steps outlined in Section 9-2, cut the second and subsequent inside rafters to length. Place the second rafter into the roof attachment channel so that the pre-drilled holes line up with the grooved seams in the rafter.

Fasten the rafter to the roof attachment channel using two #12 x 1" tek screws per rafter. Make sure the first and second rafters are 48-5/8” apart (for 48” bays) or 42-5/8” apart (for 42” bays) center to center and are parallel to each other. At the opposite end, slide the first module inside the bottom track to the left (Figure 04) to gain access to the underside of the header beam where the second rafter will be attached. Fasten the rafter from the underside of the header beam using two #8 x 3/4" tek screws. Repeat this process of sliding the modules and fastening the rafters until all of the rafters are in place.

Figure 04




4

5. Fastening the Wall Modules Together

You will be attaching the modules together by the utility mullions affixed on either end of each module. Be sure to mate a male and female utility mullion together for a proper fit. Make sure that the wall modules are fit snugly together and that the front wall is centered on the bottom track. A sheet metal screw or Pop rivet will be needed every 24" to attach both sides of the utility mullion together (Figure 05). Fasteners should be placed to the inside of the utility mullion, thus allowing the fasteners to not be exposed. Vinyl cladding will be added on top of the utility mullion during the final details and clean-up Section 14 of this manual.

Figure 05

Figure 06

6. Fastening the Header Beam to the Wall Modules

Place two sheet metal screws at each utility mullion and electrical header beam junction (just like for the bottom track), using the screw guide lines on the header beam (Figure 06). Screws should be placed on the inside and outside of each junction.

7. Fastening the Wall Modules to the Bottom Track

The modules will be fastened with sheet metal screws at the base where the vertical mullions and bottom track intersect. Use the screw guide line in the bottom track to place the screws. Fasten two sheet metal screws per utility mullion connection at the base on the room's exterior (Figure 05).

8. Attaching the Solid to Glass Stiffener

The solid to glass stiffener is the transition piece that allows you to mate the solid and glass components of the sunroom roof. Beginning closest to the house wall, locate the position of the solid to glass stiffener on the C-

Thru room layout sheet. A chalk line across the rafters may help line up all of the solid to glass stiffeners. Make sure the stiffener is perpendicular to the rafter, and bottom leg of the stiffener is lying flat on the inside leg of the rafter. Secure the solid to glass stiffeners with #8 x 3/4" tek screws through the pre-punched holes into the side of the rafters. Repeat this process in between all of the rafters.

9. Placing the Insulated Roof Panels (Solid to Glass Transitions Only)

Note: All glass roof rooms require a minimum of 6" of solid roof panel at the roof attachment channel.

Note: The insulated roof panels have dissimilar materials on each side. Make sure the aluminum side faces the sky.




5

The solid roof panels will fit between each set of rafters, in the space between the roof attachment channel and the solid to glass stiffener. Place a solid roof panel in between the first two rafters from the outside of the sunroom.

Cut this panel to the proper size, if necessary. Push the roof panel to the back of the roof attachment channel and lower it into place. Pull the roof panel slightly out of the attachment chennel until it butts up against the the solid to glass stiffener. Repeat this process in between each set of rafters. See Figure 07 for a profile view of the completed solid to glass transition.

10. Placing the Glass to Glass Stiffeners and Drip Trays

Place a glass to glass stiffener and drip tray in between each set of rafters where every two panes of glass will meet together. Rest these components on the bottom legs of the rafters. Do not attach these components yet.

Note: These components cannot be placed in between the rafters once the glass is set into place.

11. Installing the First Course of Glass

See your C-Thru room layout for the proper glass size for each bay. You must also read the warning labels on each piece of glass to ensure it is glazed properly.

Starting closest to the house wall, place the first row of glass onto the rafters. The top edge of the glass should rest on the gasket of the solid to glass stiffener, approximately 1/2” to 3/4” from the solid roof panels. The sides of the glass should rest on the gaskets of the rafters. Repeat this step until all panes of glass have been placed.

Make sure the panes of glass line up with each other across the entire roof.

Figure 07

12. Installing the Second and Subsequent Courses of Glass

Place the second course of glass, making sure to leave a 1/2" - 3/4" gap between the first and second courses of glass. Repeat this process until all of the courses of glass have been placed.

Note: If the roof requires solid fill at the front edge of the roof, install the solid to glass stiffener as described in Section 10-8. Cut the solid roof panel as necessary and slide it into the opening.




6

13. Installing the Top Cap (Solid to Glass Transitions Only)

Remove the protective cover from the glazing tape and center the top cap in between the pane of glass and the solid roof panel. Make sure the top cap adheres to both the glass pane and the solid roof panel.

Fasten the top cap from the inside of the room through the pre-drilled holes in the solid to glass stiffener.

Install using #8 x 5/8" (for single glass) or #8 x 1” (for dual glass) machine screws with washers and a dab of sealant on the tip of the screw. Cover the fastening channel with a section of beauty cap. Repeat this process in between all of the rafters on the solid to glass transitions. Make sure the top caps line up along the entire width of the sunroom.

14. Installing the Top Cap (Glass to Glass Transitions Only)

Locate the top cap and remove the protective cover from the glazing tape. From the top of the roof, center the top cap in between the two panes of glass and press it firmly into place. Make sure the top caps line up along the entire width of the sunroom.

15. Installing Glass to Glass Stiffener (Glass to Glass Transitions Only)

Locate the glass to glass stiffener that was placed in between the rafters in Section 10-10. The glass to glass stiffener will mate the two pieces of glass together. At one end of the sunroom, remove the protective cover from the glazing tape on the glass to glass stiffener and center the glass to glass stiffener in between both panes of glass from the inside of the sunroom. Make sure that each strip of glazing tape adheres to each pane of glass. Repeat this step on the opposite end of the sunroom. Using the edge of the stiffener as a guide, snap a chalk line across all of the rafters to line up the remaining stiffeners. Repeat the process until all glass to glass transitions are complete.

16. Fastening the Top Cap (Glass to Glass Transitions Only)

Fasten the top cap from the inside of the room through the pre-drilled holes in the glass to glass stiffener.

Use

#8 x 5/8" (for single glass) or #8 x 1” (for dual glass) machine screws with washers with a dab of sealant on the tip of the screw. Do not over-tighten the screws. Repeat this process between all of the rafters on the glass to glass transitions.

17. Installing the Drip Tray (Glass to Glass Transitions Only)

Locate the drip tray that was placed in between the rafters in Section 10-10. Center the drip tray underneath the glass to glass stiffener, and allow it to rest on the bottom leg of each rafter. Fasten each end to each rafter using two #8 x ¾" tek screws on the tabs on the drip tray. Repeat this process across all of the rafters, making sure all of the drip trays are in a straight line.

Repeat this process for all of the glass to glass transitions in the sunroom roof. See Figure 08 for a profile view of the completed glass to glass transition.

Figure 08




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18. Installing the Rafter Caps

Each rafter beam will be topped with a rafter cap. The outside ends of the first and last rafters will require a rafter balancer (Figure 09). Measure the length of the rafter to the attachment channel, then cut the rafter caps to length. Fasten the rafter caps to the rafter beams through the pre-drilled holes using #8 x 1/2" machine screws.

See Figure 07 for the completed solid to glass transition.

19. Sealing the Roof

To ensure a long, dry life of the room, run a fine bead of GE# 1200 silicone (not poly-urethane) along every seam in the roof. This small bead should encompass the vinyl bulb on the rafter caps and the insulated roof panels or glass, as well as the solid or glass transitions on the top caps. Press the silicone into each joint with your finger to ensure a watertight seal.

See Figure 09 for a profile view of the completed roof section.

Figure 09


Section 10: Side Wall Installation:


1

Note: If there is a door in the side wall, refer to the Door Installation in Section 15.





Figure 01

3. Preparing the Side Wall Modules

A. The wall modules for the side wall room are individually numbered and will correspond with the module numbers listed on the C-Thru room layout sheet. Refer to Section 8.1A to help identify the modules.

Note: When placing modules in the bottom track, make sure the weep holes on the windows are facing outward.

B. On concrete foundations and deck applications, the foundation may not be level. See Section 8.1B on trimming the solid material on the kickplate to compensate for a sloped foundation.

Note: The tops of the side wall modules on gabled roof rooms should not need to be trimmed. They should all arrive the correct height. Proceed to Section 12-5.

4. Measuring the Correct Module Height (Straight Eave Rooms Only)

transoms trimmed to conform to the slope of the roof. Check the C-Thru Room layout sheet to see where first side wall module will be placed in relation to the house wall. Beginning at this point, take the vertical measurement from the inside lip of the bottom track to the bottom of the header beam and add 1" (Figure

02, Detail "A"). Using the width of the module as a guide, take this same measurement on the side wall where the opposite end of the wall module would sit. Again, add 1" to this measurement

(Figure 02, Detail "B")




2

Note: For side walls with glass transoms, the modules will arrive with "open" window frames. Follow the same procedure as if the module has a solid transom. The glass installation will be covered in

Section 13.

5. Cutting and Placing the Side Wall Modules

Transfer this measurement to the wall module and chalk a line along the slope of your cut. Use a 10" circular saw to cut the module to the correct height. Once the correct slope is cut, the module can now be placed into the wall. Lift the module, tilt it slightly, and slide it into the header beam. Return the module back to material from the top of the module.

Note: Repeat these steps until all of the wall modules have been placed.

Figure 02

place the subsequent modules.

Note: If the outside fin of the side wall channel was cut (in Section 7-2), it may now be re-attached using

#8 x 5/8” tek screws.

6. Adding Solid Fill

The C-Thru room layout sheet will note if the ends of the side wall require solid fill. If the side wall requires measuring from the inside of the "H" channel of the module closest to the house to the inside of the wall attachment channel for the width, and the height of the module for the height (both sides may be slightly side wall (Figure 03). You may need to slide the modules back and forth to fit the solid fill closer to the will be concealed by the inside and outside corners.




3

Figure 03

IMPORTANT! THE MODULES AND THE WINDOW FRAMES MUST BE PERFECTLY LEVEL AND PLUMB IN

ORDER FOR THE WINDOWS TO OPERATE PROPERLY. BEFORE PROCEEDING, TEST EACH MODULE WITH THE

WINDOW SASHES TO MAKE SURE THE WINDOWS FIT AND LOCK PROPERLY.

7. Fastening the Wall Modules Together

You will be attaching the modules together by the utility mullions affixed on either end of each module. Be sure to mate a male and female utility mullion together for a proper fit. A sheet metal screw or Pop rivet will be needed every 24" to attach both sides of the utility mullion together. Fasteners should be placed to the top of the utility mullion during the Electrical Installation section of this manual.

The modules will be fastened with sheet metal screws at the base where the vertical mullions and bottom track intersect. Use the guide line in the bottom track to place the screws. Fasten two sheet metal screws per utility mullion connection at the base on the room's exterior. Repeat this process at the top of the modules where the vertical mullions and header beam intersect.

9. Cutting and Attaching the Outside Corner

(Figure 04). The outside corner will arrive in stock lengths and will need to be cut to size. Measure the height of the corner from the foundation to the bottom of the roof. Note that on a straight roof, the side wall half of the outside corner will be cut at an angle to conform to the slope of the roof. On the gable roof, the front wall half of the outside corner will be cut at an angle to conform to the slope of the roof. Find this angle and cut the outside corner to length. Fasten the outside corner to the header beam and the bottom track using #8 x 1/2" tek screws (see Figure 05A & 05B).




front wall and side wall will be covered with an inside corner arrive in stock lengths and will need to be cut to size. Measure foundation to the ceiling. Cut the inside corner at an angle to ceiling. Fasten the inside corner to the header beam and the

*Corner view at top *Corner view at bottom track

Figure 04

4

Figure 05A


Figure 05B

Note: (Figure 08)

Shows the completed walls under existing side wall elevation.



Figure 06

5


Section 11: Door Installation:


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Door Installation:

Note: C-Thru offers three types of doors: pedestrian (single), French (double), and sliding doors (Figure 01).

The pedestrian and French doors have similar installation procedures. Refer to section 11B for the sliding door installation.

1.Assembling the French Doorjamb

The French doorjamb will arrive in four pre-cut sections: vertical doorjamb (2 pieces), horizontal doorjamb, and threshold. The horizontal and vertical jambs are miter-cut at 45-degrees and will be joined together with two "L" brackets per corner. Use a mallet to press-fit the "L" brackets on the horizontal doorjamb. Mate the vertical doorjambs with the horizontal pieces until they form a tight seam at their juncture (Figure

Figure 01

02).

Tip: Punch door jamb and L bracket with a flat blade screw driver, this will lock the jambs together and prevent them from moving apart.

Figure 02




2

2. Adding a Female Extrusion above the Doorjamb

A female extrusion will be used for the transition between the top doorjamb and the transom. Measure the width of the assembled doorjamb. Deduct 3/4" from this length and cut a section of female extrusion to this length. Center this female extrusion on top of the door jamb. Do not fasten the female extrusion yet.

3.Installing the Threshold

Note: The bump-out on the threshold must be notched on both ends to accept the bump-outs on the vertical door jambs

(Figure 03). Place the bottom threshold in the bottom track, make sure it is level, and fasten it to the bottom track with #8 x ½” tek screws.

Note: The threshold by design, can compensate for some out of levelness of the slab/ deck.

Figure 03

4. Installing the First Utility Mullion

A complete utility mullion will be secured to each side of the doorframe. Determine the location of the doorframe on the C-Thru room layout sheet and mark the opening on the bottom track. The C-Thru room layout sheet will also note which side the utility mullion male (UM) and female (UF) piece should be attached.

At each end of the opening, measure from the inside lip of the bottom track to the bottom of the roof rafter and subtract ¼” for the C-bracket. This will be the length of each utility mullion. Cut each utility mullion to the proper length. Making sure it is level, fasten one utility mullion to the C-bracket and the bottom track. Insert the assembled doorframe into the opening.

Note: If the wall modules have already been assembled, they may have half of a utility mullion already attached to each module. Complete the utility mullion by attaching a male or female utility mullion to the other side to complete the mated utility mullion. See the C-Thru room layout sheet for proper U/M and U/F locations.

5. Completing the Transom

Please refer to the appropriate side wall section of this manual to place glass transoms, glass trapezoids or solid fill above the doorframe.

6. Installing the Second Utility Mullion and Securing the Doorframe.

Place the second utility mullion on the opposite side and slide the doorframe into the opening. Make sure it is level. Fasten the utility mullion to the C-bracket and the bottom track. Making sure that the doorframe is level, secure it to the utility mullions with Pop rivets or #8 x 1/2" tek screws spaced every 16".

7. Installing the Adjustable Hinge Channel

Cut the hinge channel to the length of the door and attach it to the door jamb using #12 x 1/2" tek screws.




3

8. Installing the Door(s)

Slide the door into the hinge channel, and place the door in the "closed" position.

Make sure the gap around sides and the top of the door is even. Place shims underneath the door until the top of the door is spaced approximately 3/8" from the door jamb. For French doors, leave a gap to account for the astragal that will be placed on the non-operable door.

Secure the hinge channel to the door on both sides with Pop rivets or #8 x

1/2" tek screws spaced every 16". Repeat this process for the other door as necessary for double pedestrian door

Figure 04

installations. See (Figure 04) for the completed door attachment.

9. Installing the Bottom Adjustment Channel

Measure from the edge of the door to the edge of the hinge channel, and cut a section of hinge channel to this length. Place it onto the bottom of the door. This will be the bottom adjustment channel. Close the door, and slide this channel down until there is a 3/8" gap between the bottom adjustment channel and the threshold

(Figure 05). Fasten this channel into place.

Figure 05

Note: For level or near level slab/ deck the threshold can be adjusted to eliminate the need for a bottom door adjustment channel.




4

10. Installing the Locking Astragal (French Doors Only)

The astragal is the unit that locks the fixed door in place with a set of pins. It is secured to the locked side of the two doors. Remove the rubber caps from both ends. Cut a 1" tall by 1-1/4” deep notch on the back section of the astragal on both the top and the bottom so it will fit around the raised section of the doorjamb and the threshold when the door is closed (Figure 06). Attach the astragal to the door with #8 x 3/4" tek screws every

16". With the door in the "closed" position, slide the locking pins up to the door jamb and down to the threshold. Mark these two locations and drill a 1/4" hole where the pins will slide into place securing the door.

11. Installing Door Hardware

Install the door hardware and the striker plate per the instructions included with the door hardware.

Note: For French doors, install the striker plate on the fixed door. Install the dummy handle on the outside of the fixed door.

12. Installing Weather-Stripping

The doorjambs, threshold, and astragal have a small groove that accepts weatherstripping. Insert the weather-stripping into this groove to ensure a weather tight seal

(Figure 07).

Figure 06

Figure 07




5

Sliding Door Installation

Note: The sliding door frame will arrive assembled.

13. Installing the First Utility Mullion

A complete utility mullion will be secured to each side of the sliding door frame. Determine the location of the door frame on the C-Thru room layout sheet and mark the opening on the bottom track. The C-Thru room layout sheet will also note which side the utility mullion male (UM) and female (UF) piece should be attached.

At each end of the opening, measure from the inside lip of the bottom track to the bottom of the roof rafter, subtract ¼” for the C-bracket. This will be the length of each utility mullion. Cut each utility mullion to the proper length. Making sure it is level fasten one utility mullion to the C-bracket and the bottom track.

Note: If the wall modules have already been assembled, they may have half of a utility mullion already attached to each module. Complete the utility mullion by attaching a male or female utility mullion to the other side. See the C-Thru room layout sheet for proper UM and UF locations.

The opening for the vinyl door should be 1/8” larger than the door frame (approximately 71-5/8”). Plumb and secure the mullions on either side of the opening. Take diagonal measurements to make sure before the opening.

14. Raising or Lowering the Threshold

A female extrusion must be placed on the bottom track to raise door above bottom track clads and allow for adjustment with non-level slabs/ decks.

Trim the female extrusion to the length of the opening and fasten it to the bottom track with #8 x 1/2” tek screws every 18”. See (Figure 08).

Figure 08

Tip: If slope is greater than ¾” use solid fill below female & trim to level. Also, to prevent the threshold entry from being too high, locate the opening side of the door on the high side of the slope.




6

Tip: In extreme circumstances (such as city code or customer request), it may be necessary to lower the height of the door threshold. Mark the position of the sliding door on the bottom track, and cut a notch in the bottom track (as illustrated), so door is resting on horizontal legs. You will not need to use the female in this situation (Figure 09).

15. Installing the Sliding Door Frame

Figure 09

Note: Installing the unit "upside down" will change the direction of the door opening.

Place the sliding door frame into the door frame from the outside of the room. Make sure it is square and level. Pre-drill 3/8” pilot holes through the First Layer of the door frame. See (Figure 10A).

Figure 10A




7

Note: Do Not Drill Thru The Entire Door Frame.

Fasten the door frame to the side mullions, top channel, female and the bottom track approximately every 18” using #8 x 1” tek screws. Plug the hole with the supplied plastic caps.

16. Adding a Female H Extrusion above the Sliding Door

An “H” channel will be used for the transition between the top of the sliding door and the transom. Measure the width of the opening and cut a section of “H” channel to this length. Fasten this piece to the top of the sliding door frame as in Section 15B-3.

17. Placing the Door Track and Threshold

The door track and threshold will need to be snapped into place in the bottom of the sliding door frame.

Refer to (Figure 10B) for the correct placement of each piece.

Figure 10B

18. Installing the Operable Door Panel

Note: The sliding door contains two adjustable rollers on the top and the bottom of the door. These rollers are adjusted by the screws located on the sides of the door.

Note: The sliding door is punched on one side to accept the door handle and locking hardware. Make sure this side will sit next to the door frame when the door is closed.

Adjust the rollers on the bottom of the door so they protrude 1/4” from the frame. From the inside of the room, lift the door up, into the top of the door frame and down into the bottom of the door frame. The rollers should rest on the door track. Adjust the bottom rollers again so that the door is plumb and it operates smoothly. Adjust the top rollers so that they rest snugly against the top of the door frame. Install the door hardware per the instructions supplied with the kit.


Section 12: Electrical Wiring:


Note: In many areas, the electrical must be installed by a certified electrician. Please consult your local building department for rules and regulations regarding the installation of electrical.

Note: The electrical wires can be fed through the electrical header beam, utility mullions, roof attachment channel and roof rafters.

1. Routing the Main Electrical Source

The main electrical source will enter the sunroom at the right or left side wall channel at the house wall. You may choose to tap into an existing electrical source on the house wall or run conduit to the electric box and create a new circuit (Figure 01).

Please follow the requirements of your local building department.

IMPORTANT! DO NOT ACTIVATE THIS CIRCUIT UNTIL ALL OF THE ELECTRICAL CONNECTIONS HAVE BEEN

MADE. CONTACT WITH A LIVE ELECTRICAL WIRE MAY RESULT IN SEVERE INJURY OR DEATH.

2. Mounting the Interior Electrical Boxes

Note: All interior electrical boxes will be placed inside the channels of the utility mullions.

Note the location of all electrical switches and outlets on the C-Thru room layout sheet. Place an electrical box (J-box) in the utility mullion channel. If there is a screw or rivet in this location, remove it. Fasten the J-box to the utility mullion with four #8 x 1/2" tek screws (Figure 02). If you removed a rivet or tek screw in the utility mullion, add one above and below the Jbox. Repeat this process for every outlet or switch in the sunroom.

Figure 01

Figure 02

1




2

Note: Each electrical box requires a threaded chase nipple or plastic insert where the wire will be threaded into the box.

Note: If a fan/light is to be installed in the room ceiling, a junction box will be needed on the roof rafter that the fan will be located on. Follow the same procedure described above.

3. Chase Nipple/Plug Installation

A threaded chase nipple or plug must be used at every wiring junction of the sunroom’s structural components such as between a utility mullion and the electrical header beam. Check your local building code for requirements. Drill a 7/8" hole into the header beam (from the underside) that will act as a junction between the utility mullion and the electrical header beam. With a locknut threaded on one end, slide a

1-1/2" x 3/4" chase nipple through the hole. Secure the top of the chase nipple with a locknut (Figure 03).

Figure 03

4. Installing Wiring

Thread the wiring to all of the switches, outlets, and fixtures, according to the desired operation of the electrical system. Use 12 or 14 gauge single strand solid Romex wiring. Check with your local Building

Department to make sure they approve this method.

Note: For fan beam wiring, thread the wiring through the roof attachment channel to the roof rafter.

5. Installing Vinyl Utility Mullion Cladding

The vinyl cladding will cover the utility mullion channels on the inside and outside of the room. Measure from the bottom track to the header beam, and cut the vinyl cladding to length. Make sure the cuts conform to the angles of the header beam. Mark the location of each electrical J-box. Snap the vinyl cladding into place with a soft mallet.

Use a rotary cutting tool (or a rotary cutting bit on a drill) to cut the openings for the electrical boxes.

Simply insert the cutting tool through the vinyl cladding and follow the drill bit along the inside of the J-box

(Figure 04).




3

6. Installing Electrical Switches and Outlets

Figure 04

The first outlet on the electrical circuit in the sunroom must have a Ground Fault Circuit Interrupter (GFCI) type outlet. Make the electrical connections to all of the outlets, switches, and fixtures.

7. Mounting Outside Fixtures and Outlets (Optional)

Outside electrical fixtures will be surface mounted to the exterior of a utility mullion. Depending on the location of the fixture, drill a 7/8" hole through the center of the utility mullion or the top of the header beam.

The cladding or snap cover may have to be temporarily removed to drill this hole. With a locknut threaded on one end, slide a 2" x 3/4" chase nipple through the hole. Secure the exterior electrical box to the chase nipple with a locknut. A weatherproof exterior outlet is available from C-Thru.

For Omega Wall System Clad Installation Tips And Instructions –

See Room Clad Installation Guidelines Manual


Section 13 Final: Details & Clean Up:


1

At this point, your new room should be nearly complete. The only remaining steps are installing your window sashes and screens. In addition, it is time to give your new room a good wipe down. Wash the windows and sweep the floor. Wipe the ceiling and walls down of dust and debris. You may also use a leaf blower, shop vac, or vacuum cleaner with attachments to clean.

1. Installing Window Sashes

Group your window sashes in like sizes (small, medium, and large). Start installing sashes from the inside of room by lifting the sash up and into the center track of the window header and down into the center track of the sill.

Note: The direction of the sash interlock must be facing in and center for window sashes to interlock properly.

2. Window Adjustment

The windows may need some slight adjustments to open and close smoothly.

The vinyl windows have brass rollers on the bottom of each sash. Pop out the roller with a screwdriver and move it to the alternate location in the plastic clip if necessary.

3. Installing the Screens

Install your screens from the outside of the room. Lift screens up and into window header and down into the sill. Repeat this procedure for all of the window screens.

4. Installing Weep Hole Covers

The openings in the bottom track and the window frames contain punched openings that accept weep hole covers. Find the appropriate sized weep hole covers and press-fit them into these openings.


Section 14: Care & Maintenance:


1

The following are some points of interest that should be reviewed with the homeowner upon completion of the sunroom:

1. Clean your room both outside and inside using mild household cleaning solutions. This should be done on a regular basis to maintain its luster.

2. Periodically check flashing and caulking. The caulking sealants need to be cut away and re-caulked as needed to maintain a leak-free room. Silicone Tape is also available to seal the roof seams.

3. Gutters need to be checked for debris and cleaned regularly.

4. Do not allow sprinklers, down spouts, or fountains to spray the walls for a prolonged period of time as sediments and minerals may deteriorate materials or impede the integrated drainage systems.

5. Do not paint the sunroom as it will null and void the warranty. Review the warranty with the homeowner, for more details see the warranty card.

6. For the operable windows and doors, be sure to vacuum the tracks out and thoroughly wipe down with a damp rag and occasionally lubricate wheel housings with silicone spray to keep them free from debris and operating correctly.

Warning

Under NO circumstances should you use acid tone or any type of solvent cleaner on the vinyl. This may damage the UV coating.


Appendix A: Part Profiles & Connection Details:


1


Rev 032515




2



3


Rev 032515




4



5


Rev 032515




6



7

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C-Thru Straight Eave Sunroom Manufacturer’s Installation Guidelines

Assistant Bot

Straight Eave Roof

Door Installation:

Sliding Door Installation

For Omega Wall System Clad Installation Tips And Instructions –

See Room Clad Installation Guidelines Manual

Warning

Key Features

Frequently Answers and Questions

What is the maximum attachment height of the roof attachment channel?

How do I cut and place the header beam?

What is the spacing between the rafters?

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Table of contents

C-Thru Straight Eave Sunroom Manufacturer’s Installation Guidelines

Assistant Bot

Straight Eave Roof

Door Installation:

Sliding Door Installation

For Omega Wall System Clad Installation Tips And Instructions –

See Room Clad Installation Guidelines Manual

Warning

Key Features

Frequently Answers and Questions

What is the maximum attachment height of the roof attachment channel?

How do I cut and place the header beam?

What is the spacing between the rafters?

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Table of contents