Protection, Performance and dependability in the extreme.

It doesn’t get much more extreme than  a nine-pound two-by-four at a window at a speed of 50 feet/second — but that’s the kind of impact CertainTeed Impact-Resistant Windows are tested to resist.

Available as an option on select window styles, MI Impact-Resistant Windows provide homeowners in coastal areas with a window that meets wind-borne debris testing standards of the International Building Code, as well as ASTM E 1996 and ASTM E 1886 for impact resistance.

MI Impact-Resistant Windows feature a Dupont® Interlayer technology in the insulating glass units. When properly installed, testing shows, that upon impact from debris or wind, the laminated glass may crack, but the pieces adhere to the interlayer, keeping the glass intact within the frame. The tilt latch on the single-hung window automatically retracts when re-tilting the sash back into the frame. Many other impact-resistant windows do not have this feature, increasing the possibility of damage to the hardware, frame or sash.