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Do-It-Yourself Home, Porch & Patio Kits and Materials

Porch Screening Systems, Insulated Modular Walls, Modular Sunrooms,
Screened Enclosures, Aluminum Patio Covers & Window Awnings

From Innovation to Transformation... Doing it yourself does not mean doing it alone!

DIY Applications Designed for the Average Homeowner!

Location Tool: Home-Page | Insulated Walls Under Kit | Alpha Plus Walls Only | Window Details

Modular Sunroom Walls Only Kits

Prefab Sunroom Walls

Insulated and Glass Wall Systems

Proudly made in U.S. of A.

The Alpha Plus Line of Sunrooms by C-ThruAlpha Plus Windows

This affordable three to four season prefabricated sunroom 'walls only' system will transform almost any existing patio or porch with a roof into a backyard escape. These Sunroom & Patio Enclosure Products have been fully Tested and Evaluated by IAPMO* Uniform Evaluation Services. This certification of our products ensures consumers and building officials that our products meet and exceed all local, regional and national engineering standards. We work with C Thru Industries Inc. to bring you this high quality sunroom wall Do It Yourself product! (*IAPMO = International Association of Plumbing and Mechanical Officials)






Alpha Plus Walls Only

We ship our modular insulated wall systems country-wide throughout the USA

*Sorry Florida. We can't help you at this time!

We will be pleased to email you a
Budgetary Cost for Your Project
to get you started.


Doing it yourself does not mean doing it alone!
Toll Free: 1.844.404.0484



*The pictures above are given to illustrate the features of the Alpha Plus wall system. They are not to replace instruction guidelines and may be slightly different than your particular installation.

The Windows & Glass Packages


Our vinyl windows come with a substantial 3 ผ” thick framing, dual cam locks and a variety of glass options to choose from. They come in three different configurations...


All sliders come with our EZ Glide Quad Roller system! Available exclusively by C-Thru, it carries double the number of rollers as our competitors, minimizing sash racking and making for extra smooth operating windows.

  • Sliding windows are available in 36”, 42”, 48”, 54” wide with custom widths available.

  • Fixed windows are available in 24", 36”, 42”, 48”, 54” wide with custom widths available.

  • All standard windows are either 54" or 60" high but can be customized to be appropriate to wall height!

  • All sliding windows come with a fixed exterior screen

SmartGlass 30 | 40 | 60    (details & options)

Most sunrooms are made with a lot of glass, so it's important that the glass itself is clear and strong. Duralite has up to twice the clarity of regular glass and is strong enough to withstand impacts without breaking or scratching.

Choose from three different types of Duralite glass:

  • 1/8” Single Pane Glass (Smart 30)

  • 1” Sealed Argon Double Pane Glass (Smart 40)

  • 1” Sealed Argon Double Low E Pane Glass (Smart 60)


SmartGlass Efficiency U-Value Shading Coefficient Solar Heat Gain Coefficient Visible Light % UV %
SmartGlass 30
Clear single pane - most cost effective
1.0 .89 .85 90% 74%
SmartGlass 40
Hermetically sealed clear dual pane insulated glass unit
.50 .87 .75 81% 61%
SmartGlass 60
Hermetically sealed 1" thick dual insulated glass unit with multiple layers of Low E coating and enviro warm edge spacer
.274 .41 .34 70% 14%


How to read the table above...

U-Value Radiant (non-solar) heat transfer thru the glass measured in BTU's/sq.ft./hours x deltaT. The lower the number the better.

Shading Coefficient An index of solar heat gain rejection. The lower the number the better.

Solar Heat Gain Coefficient Similar to shading coefficient. The lower the number the better in terms of solar heat gain rejection.

Visible Light % The amount of visible light allowed to transfer through the pane of glass.

UV% The % transmission of ultraviolet radiation through the glass.



SmartGlass 30

SmartGlass 60 


Our own UV transmission test done in
the factory with a UV transmission
meter and a UV light pen.

This is given to further illustrate
the efficiency differences between SmartGlass 30 &60




DuraLite Windows

  • Standard upgrade on all sunrooms and modular wall systems, with both single and dual pane windows

  • 8 times stronger that residential glass increasing security - nearly unbreakable

  • Stronger than laminated and safety glass decreasing the chance of breaking - rated as good or better than tempered glass!

  • Patented warm-edge spacer technology for maximum insulation and minimum argon loss

  • Safe and shatter resistant.




The window is only as good as its seal...

This one element of your room, the spacer between panes of glass, although unseen, is one of the most important elements in the construction of your windows and doors. Duralite spacers are the most advanced energy efficient spacers in the industry. Commonly known as 'warm edge technology' it acts as an insulator between the outside temperature and the inside of your room. Duralite spacers are made with non-metallic structural elements that insulate incredibly well and do not break down over time.


The thermal performance of a window plays a major role in household energy conservation. A high-performance window system will keep your energy costs low by reducing heat loss in the winter and heat gain in the summer. Duralite combined with Low-E glass and air produces one of the highest performing, energy-efficient window systems, saving you money on your heating and cooling costs. Duralite is an ENERGY STARฎ qualified product.



Duralite is a flexible, warm-edge spacer featuring a unique no metal, composite laminating technology that provides superior durability and thermal performance in insulating glass units. To achieve the ultimate in performance – all in a single-seal design Duralite is preassembled with an air-filled polycarbonate shim, butyl sealant, a three-sided continuous moisture barrier and
a desiccated topcoat. The results are better performance now, and in the future.


When you see condensation inside a dual pane window, that means the seal has failed. Our exclusive high performance dual and triple pane glass is made using the latest technology in insulated glass seals. Poorly insulated windows allow moisture to collect in the form of condensation. Condensation can obstruct your outside view, reduce natural lighting and damage interior finishes. Moisture and condensation can also increase the risk of mold. Windows built with Duralite warm-edge spacers reduce condensation, keeping moisture off your glass for a clearer view to the outside.





Our Lifetime Limited Material Warranty is unequalled by any other sunroom maker.
Your new C-Thru Sunroom Walls are warranted for life, as long as you own them!

Approvals & Specifications
  • I.C.C. Approval (International Conf. of Building Officials)
  • IRC (International Residential Codes)
  • IBC (International Building Codes)
  • CBC (California Building Code)
  • Meets or Exceeds National Glass Code
  • Factory Built Housing Approval
  • C.M.B.S.O.A. Approval (Security Windows)
  • A-Rated Dual Glass (ALI Laboratories)
  • U.L. Classified Patented Electrical Raceways
  • AAMA Approved Windows and Doors

Modular Construction for Easy Installation

• Available in 24”, 36”, 42”, 48” and 54” Modules
• Modules are cut and assembled in a quality controlled environment
• Unit does not require precision cuts at the jobsite
• Less cuts in the field requires less fillers
• Every piece is quality checked before leaving the factory
• Less exposed fasteners and caulking
• Assembled in a fraction of the time of a KD assembly
• Easy to follow installation manual and installation support available
• Modular construction make installation a snap.

• Most room sizes can be installed in just a couple days.

• 100% Made in the U.S.A.



A Sunroom is really 10 rooms in one!
•Living Room    •Home Gym    •Family Room    •Kid’s Recreation Room
•Home Office    •Spa Room    •Breakfast Nook
•Poolside Room    •Craft Room
•Game Room







We have been doing this for over 18 years...
You can be confident with the answers we give. Know who you are dealing with!

We ship this product nationwide throughout the contiguous USA

*Sorry Florida. We can't help you at this time!
Insulated R-14 EPS core wall systems with our patented TuffCore finish, highest quality vinyl window systems with high-tech spacers and up to triple pane Low E protection...
all come together in one modular sun-room 'walls under' system designed to give you a lifetime of maintenance free beauty.


Toll Free: 1.844.404.0484



Use the link boxes above for more information on this product.

Remember... Doing it yourself does not mean doing it alone!






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Monday-Friday | 8:00 am to 6:00 pm ET*

Saturday | 10:00 am to 4:00 pm ET*

Sunday | Closed

*Except for US & CAN holidays

Home Porch & Patio DIY Kits

*In any case of price or information discrepancy, this web site shall be taken as correct. All prices are subject to change without notice.

Web site pricing  - - In Canada: does not include freight rate up-charges to Newfoundland and Labrador, Vancouver Island, Nunavut, NWT, or the Yukon
Web site pricing  - - In USA: is for delivery within the contiguous US and does not include freight rate up-charges to AK, HI, PR or US Virgin Islands


*Some exceptions may apply.
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