Cool Roof Systems

Energy-Efficient Cool Roofing

White and light-colored roofing membranes can reflect 60–90% of incoming sunlight, dramatically reducing heat transfer into the building below. Research from Argonne National Laboratory found that cool roofs reduced AC energy consumption by 16.6% across the Chicago area—outperforming both green roofs and solar installations for cooling efficiency. For top-floor condos that become unbearable in July, or commercial buildings running HVAC systems at capacity, a cool roof addresses the problem at its source rather than fighting symptoms with more air conditioning.

We install high-reflectance TPO and PVC membranes with solar reflectance ratings of 0.80 or higher, meeting ENERGY STAR cool roof certification standards. These membranes feature both high solar reflectance to bounce away sunlight and high thermal emittance to release absorbed heat quickly. The installation process matches our standard flat roofing work—fully adhered or mechanically fastened membranes with heat-welded seams—so you get cool roof performance without compromising waterproofing integrity.

The numbers work for Chicago despite our cold winters. Studies show the summer cooling savings consistently outweigh any winter heating penalty, especially in well-insulated buildings. Cool roofs also extend membrane lifespan by reducing thermal stress from daily temperature cycling. Commercial buildings may save $0.15–0.20 per square foot annually on cooling costs, and some Illinois utilities offer rebates for cool roof installations that meet efficiency thresholds.