Dual "H" Perimeter SealsThis door is equipped with our patented dual Super "H" door sealing system. It consists of a dual compression type perimeter seal. Compression seals typically offer higher acoustical ratings. The seal is composed of a felt/neoprene combination that forms a tight perimeter seal. Dual compression seals are used on our highest rated acoustical doors.
UL Fire RatingsIn addition to acoustical testing, Overly has successfully tested this product to the latest UL fire test standard UL10C/UBC 7-2 (positive pressure).