What are impact-resistant windows and doors?

These are windows and doors that combine heavy-duty frames with impact-resistant laminated glass and a special silicone glazing process to keep the glass from breaking away from its frame. Impact-resistant glass is comprised of two panes of glass bonded together with a special interlayer of clear polyvinylbutyral. Although wind-borne debris or an attempted break in may crack the glass on impact, the interlayer keeps the overall window and door intact, preventing destructive winds or intruders from entering your home. ... more