Yes. WEDGE-IT was introduced in 1999 and has been installed on thousands of homes.
Yes. WEDGE-IT has developed changes in thickness to increasing R-value to help comply with the new 2020 Above Deck specifications and is Title 24 compliant.
No. Simply lay the 4 foot piece of WEDGE-IT under the tile and follow tile manufacturer’s installation procedures.
Expanded polystyrene, or EPS is a lightweight, closed cell plastic foam material composed of hydrogen and carbon atoms. It is derived from petroleum and natural gas by-products.
No. When the roofing material is installed per manufacturer’s specifications Wedge-It will not change the respective roof’s fire rating. See Fire Report
No. the R-value of EPS insulation remains constant because the cellular structure of EPS contains only stabilized air. The R-value of EPS will not decrease with age.
No. Tested in accordance with ASTM C1338-00 EPS foam scored no traces of mold growth over a 28 day period. See EPS Report
Yes. Prolonged exposure to sunlight will cause a slight discoloration and surface dusting of EPS insulation. The insulating properties will not be significantly affected under normal usage.
Yes. After its original life as insulation, EPS can be recycled into a variety of consumer and industrial products.
Much longer than any roof. In landfills the expected life is 400 years.