Do Therma-Tru products meet the Texas Energy Code for U-values?
The IRC / IECC requirements relative to fenestration products are as follows: The U-Factor of fenestration shall be determined in accordance with NFRC 100 by an accredited independent laboratory and labeled and certified by the manufacturer. WITH OUR NEW LABELS WE MEET THIS REQUIREMENT. Maximum glazing U-Factors of .90 to .35 (depending on heating degree days) WE MEET THIS REQUIREMENT ALBEIT ANYTHING UNDER .37 WOULD REQUIRE LOW-E Opaque doors require a maximum U-Factor of 0.35. WE ARE AT 0.14 In area’s with heating degree-days less than 3500, the SHGC shall not exceed 0.40. WE ARE AT 0.36 OR BETTER.
