THERMOPLASTIC ROOFS, BENEFIT IN THE MIDWEST?Drone Infrared Imaging
White thermoplastic roofs are cool
The most common thermoplastic roofs are PVC (polyvinyl chloride) and TPO (Thermoplastic Olefin). Both of these materials will prove to be cooler roof systems than most materials out there. On a 90 degree day, an EPDM roof can get upwards of 170 degrees. On a 90 degree day, thermoplastic roofs will be at a temperature of 110 degrees (approx.). This is a significant difference in temperature. Most consultants would argue that the temperature doesn’t matter in the Midwest because they want the warmth in the winter. I will tell you the biggest benefit in the last paragraph.
Thermoplastic roofs in the summer
Whether you are in the Midwest or not having a cool roof allows buildings to stay cooler thus reducing the cost of cooling buildings. The other thing it does is allow HVAC units to operate more efficiently through reduced heat around the unit. Both of these factors contribute to energy saving costs in the summertime months. In future posts, I will have infrared shot via a drone to prove my points.
Thermoplastic roofs in the winter
The effects of the sun is significantly less in the wintertime because the sun is no longer high in the sky or directly overhead. The absorption of the suns rays is not as strong as the dead of summer causing the black roof materials to reach temperatures that are less than if the sun would be directly overhead. Don’t get me wrong, is it beneficial to have a roof that is warm in the winter on a sunny day, YES. The effects however are not as significant as the summertime cooling. Is the energy savings more significant in the south, YES.
Thermoplastic roofs biggest benefit
Ultraviolet rays are probably one of the most damaging factors to any roof system. Roof materials deteriorate because they dry out and crack or shrink. Anything that can be done to avoid this process would be beneficial the roof system. Thermoplastic roof can have a .070 – .085 reflection of the sun. Thermoplastic white products are reflecting 70-85% of the suns rays back into the atmosphere as opposed to absorbing them and drying out the product. So whether you are in the Midwest or the deep South, this benefit will always remain.