Below are links of 6 Real Test Cases. There are two that are styles of roofing and venting that is most common and popular in the roofing industry. The first is just an Asphalt Roof that has not venting. The Second is An Asphalt Roof that has the industry standard “good” venting, which includes a proper soffit vent at the bottom of the roof line on both sides called the eave, and a properly installed ridge vent. The third is our Therma Vent system properly installed with a normal same as the other test cases Asphalt roof. The fourth is our Therma Vent system with a Standing Seam Metal Roof. Lastly is a real house that had the Therma Vent installed on it with an Asphalt Shingle roof over it. By Clicking on each of the pictures below it will take you to a personalized page with test info on each.
This Model was created with 2×4 framing and a basic 3 tab Asphalt shingle roof with no venting at all. There is no ridge vent or soffit vents the attic is completely sealed. We have Thermometers in the peak of the attic space and at the base. On 75 degree days the temperature at the peak reaches over 140 degrees. For Detailed temperature reading click on Asphalt Shingle Roof No Venting Page.
This was a real house that we did testing on that was a one story house with a basic asphalt shingles roof on it. It had no ridge vent or soffit venting. This home was built in the 1970s with normal 2×4 framing. Our tests showed over 150 degrees in the attic. For Detailed testing results click on House with Asphalt Roof No Venting.
This model was created with 2×4 framing and a basic 3 tab asphalt shingle roof. We installed an industry standard ridge vent with soffits vents to allow air to come in under the soffit which is behind fascia seen in the picture. Test show that on a 75 degree day the peak of the attic is over 115 degrees. . For Detailed testing results click on Asphalt Shingle Roof with Soffit and Ridge vent.
This model has the same 2×4 framing and a basic asphalt shingle roof installed on it. However you might not be able to see the difference from the appearance but the Therma Vent system is installed underneath allowing a complete ventilated under roof system and allowing more air to enter the attic space and escape through the ridge vent. On a 75 degree day the peak of the attic was readying 95 degrees. . For Detailed testing results click on Asphalt Shingle Roof with Therma Vent system.
This house we installed a basic 3 tab ashpalt shingle roof over our properly installed Therma Vent system. This was the same house above under “House with Asphalt No Venting” that had a 150 degree attic on a 96 degree day. Once we installed out Therma Vent system on a same 96 degree day the peak of the attic was only 103 degrees. This house even our performed our model that had Asphalt shingles and our therma vent system. For Detailed testing results click on House with Asphalt Shingle with Therma Vent System.
This is the Model we created that has a Standing Seam Metal Roof on it and the Theram Vent installed underneeth it. On a 75 degree day the peak of the attic is about 95 degrees. This model tracks very close to the other model that has the Therma Vent and Asphalt Shingle. For Detailed testing results click on Metal Roof with Therma Vent System.
