** 06 variant is tested and WDMA Hallmark certified for Wind-borne debris impact, in accordance with ASTM E 1886 and ASTM E 1996. * Tested in accordance with AAMA/WDMA/CSA 101/I.S.2/A440-11 (NAFS 2011) Structural performance ratings also apply to sizes smaller than the Tested Size VSE and VSS skylights are WDMA Hallmark certified: Products 426-H-670, -678, -679, -682 (not applicable to copper-clad variants) VELUX Glass Skylights are rated at 20° slope and labeled with NFRC-certified U-Factor, SHGC, and VT ratings listed in the NFRC Certified Products Directoryįading protection, % (Krochmann damage function) Thermal performance (Certified, complete unit values) Water resistance 3.4 L/m2/min (5 USgal/ft2/hr) *
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