We are AlphaRain.com @ (540) 222-1642. We didn’t know the true answer so we conducted an experiment. We recently installed a roof ventilation system that had soffit vents but not a lot of ridge vent. There was about 25% of the total ridge that was vented and then there were two gable vents at either end of the main gabled roof.

We took the attic air temperature on a sunny 88-degree day at 2 PM. In the middle of the attic at the peak, it was 150 degrees. At either end close to the gable vents at the peak, it was 129 degrees.

We then installed the roof in such a way that as air escaped through the full length vented ridge vent cooler air was drawn in through our unique vented eave vent.

Here are the results:

Date: Saturday 9/6/14

Time                                      Outside Temp                                   Attic Temp

12 noon                                                86                                           100

1 PM                                                      89                                           105

2 PM                                                      90                                           114

3 PM                                                      90                                           114

4 PM                                                      86                                           112

5 PM                                                      83                                           104

As you can see by only ventilating the attic properly we reduced the attic air temperature by 36 degrees.

Keep in mind the standing seam metal roof  was not a light colored standing seam metal roof but an Antique Black color.

Watch this video to see how to reduce it to 103 degrees with the Roof Ventilation System.

 

 

For more information please visit our website, AlphaRain.Com or call us @ 540-222-1642 for pricing information

 

On April 18th 2014 we installed a new metal roof in Leesburg Virginia.  This is the live video we shot from the job site.  Please give us a call at (540) 222-1642 to learn more about our amazing energy efficient metal roofs.  We have complete many metal roofing projects in Leesburg and we’ll soon be uploading some new videos from those projects. Click here to watch the video:  https://www.youtube.com/watch?v=7hiuJfFXsaI or watch below:

In our last post, we shared our first version of a cool roof ventilation system that automatically vented the hot air through a custom vented ridge vent and replaced it with cooler air through a custom eave vent.

The photo below shows our latest improvement that not reduced the labor cost but also introduced a thermal break as well as a radiant barrier. This latest improvement not only addresses all 3 ways heat is transferred, it works on any roof style including asphalt shingles.

For more information please call 540-222-1642 or visit our website at AlphaRain.com.