TPO roofing has been around for years now and is definitely the go-to flat roof for a commercial building. The reason is simple, Houston is HOT! TPO is a cool roof system which means it reflects the heat from the sun instead of consuming and holding the heat like traditional flat roof systems did. This flat roof system is guaranteed to save you on your electric bill. We have plenty of testimonials to prove that statement is true, not to mention this roof system is energy star rated.