Call Us Email Us

Product Features & Benefits

Standard Features:

-The Omega room is a 4” thick residential wall system providing maximum structure and insulation, ideal for all seasons.
-All Omega windows and doors are AAMA approved NFRC certified.
-Thermal cladding covers up ugly screws and messy caulking + thermally insulates from outside temperatures without sacrificing structural integrity, another C-Thru exclusive.
-All operable windows are double sliding and have fully removable screens.
-C- Thru’s exclusive virgin vinyl compound is optimized for longevity, made and built in Corona, California in the USA!
-Vinyl will not crack, peel or corrode like wood or aluminum frame material can.
-White & Almond, thru-colored, will never show contrasting scratches and never need painting.
-Commercial rating allows C- Thru’s vinyl windows & doors to be used in light commercial projects.
-All windows and doors are fusion welded, hand trimmed, 45 degree corners provide maximum strength and weather protection.
-All dual pane windows use State of the art, warm edge elastomeric separator witch improves window energy performance and longevity.
-All glass is standard C-Thru’s exclusive Duralite Glass, with only minimal exceptions.
-All windows and sliding doors have equal site lines for architectural consistency and overall curb appeal.
-All Omega windows and doors use the Best Fin Seal Weather Striping for an extra level of protection gains the weather.
-Thermal cladded walls minimize heat and cold transfer and hide screws and protect caulking from degenerating UV rays.
-All structural member framing is aluminum 6063-T6 hardened alloy.-Solid insulated walls, standard are exterior tempered hard board and interior wood board.
-Areas above and below windows and doors are standard solid insulated panels.

Available options:

Doors Options

  • 3’ x 6’8” full view swing door
  • 6’ x 6’8” French swing doors
  • 6’ x 6’8” sliding door
  • 8’ x 6’8” sliding door
  • 12’ x 6’8” bi parting doors (must be on level slab and in a no loadbearing wall).

    • Glass kick plates, transoms & trapezoid options

      • Glass kick plates 12” or 24” tall
      • Transoms 12” or 24” tall
      • Trapezoids customs size to order

      Electrical options

      • UL listed Electrical loadbearing header
      • UL listed electrical utility mullions
      • Interior outlets
      • Exterior outlets
      • Porch lights
      • Light switches
      • Ceiling fan/ light race way.

      Misc. options

      • Tuff Skin, for all solid areas in wall.
      • Solar screens
      • Window & door grids, available in dual pane glass only.
      • Colors, White or Almond
img img

Omega 4″ vinyl wall system is the latest and most energy efficient room available on the market today. C-thru takes great pride in knowing that we provide our customers with the most advanced and innovative energy and Eco friendly products.
Our Energy Star, IAPMO, ICC, FBH, UL, AAMA & NFRC rated wall pannels, windows, doors, roof and electrical system are tested and scrutinized by 3rd party evaluation labs as well as government and state agencies, and pass with flying colors. Our products are unmatched in testing and performance. When deciding on your room investment, be sure to demand the best. “DEMAND C-THRU”.


Glass Roof
(Cross Sections)

C-Thru’s glass roof system was designed over 25 years ago. Since then it has been continually refined. Over the years we have implemented the latest in glass technology making our sunroom glass roofs excellent when insulating against solar heat. This allows our sunrooms to be more comfortable any time of the year or day. It is considered to be the best roof system of its kind by our competitors. Of course the beauty of the C-Thru glass sunrooms are unmatched, but what you don’t see is our intricate design details. For example, the internal weep system keeps any unwanted water from leaking into your sunroom. We even offer optional internal stiffeners that allows you to have a large room without the need of beams and posts inside your living area. Our glass roof is available in the Classic curved eave or the traditional straight eave style.

Glass sunroom roof options
  • Curved eave
  • Straight eave
  • Single pane roof
  • Dual pane roof
  • Roof shutter system

Structural beam inserts (for heavy snow loads or long projections).


Solid Insulated Roof
(Cross Sections)

The WeatherGuard structural insulated roof system is C-Thru’s own exclusive roof system. This patented roof system comes available in 3″, 4″ and 6″ thick roofs allowing you to design your sunroom for your particular weather climate. Whether it’s hot and sunny most of the time or if the deep snows of winter are your concern, our WeatherGuard roof is your solution.

When it comes to elegance no one can beat our WeatherGuard roof system’s great looks. Because unlike most other industry standard roofs, C-Thru’s roof has a patented snap locking system (joining the roof panels together) eliminating exposed screws and unattractive obstructions in the ceiling. Our exclusive patented snap locking system designed with internal weep channels helps prevent unwanted water from leaking in to your room. Making it hands down the industries most sate-of-the-art system.

WeatherGuard insulated roof options

  • 3” thick roof
  • 4” thick roof
  • 6” thick roof

Other than the framing and solid insulated areas, a sunroom is made almost of all glass. With this in mind, glass is one of the most important features to choose correctly when designing your new sunroom. C-Thru offers five unique glass options in its proprietary SmartGlass ™ line. Starting with the SmartGlass 30, it’s our most economical option. This is a single pane glass with the least amount of insulation. Our more energy efficient glass option is our SmartGlass 60. This dual pane high performance Lo-E glass is considered to be the “Best Value” when taking insulating abilities and cost into account. However the choice is yours. Scroll down the page to learn more about what Smart Glass package will work best for you.

Single pane Glass options

  • Smart Glass 30
  • Smart Glass 40
Dual pane Glass options

  • Smart Glass 30+
  • Smart Glass 60
  • Smart Glass 90

*Not all glass options are available for every product. Contact your local authorized, independently owned and operated C-Thru dealer for more info.


Safety is also a paramount concern when surrounded by so much glass. C-Thru’s exclusive DuraLite™ Glass is 8 times stronger than standard residential glass and is strong enough to withstand impacts without breaking or scratching. DuraLite glass is stronger than laminated and safety glass to protect against accidental breakage. Duralite is standard on all rooms on both single and dual pane windows.


C-Thru Sunrooms are engineered to be energy-efficient to help control your heating and cooling bills. Along with using SmartGlass™, C-Thru uses Tuff-Core™ wall panels and WeatherGuard™ roof panels. These panels are made of a highly-energy-efficient materials. 3″ of Tuff-Core™ has as much insulation as 8″ of fiberglass to help regulate the temperature inside of your sunroom. Tuff-Core™ wall panels also feature Tuff Skin™, which is a scratch and dent resistant material.

15% Off

  • The Original Sunroom Manufacturer since 1947.
  • C-Thru Sunrooms has established itself as a world class manufacturer of sunrooms, conservatories, patio covers and enclosures.
  • Custom designs
  • Professional work standards.
  • Flexible work schedule