Impact-resistant windows and doors are often simply called impact windows and doors. They 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. 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. Replacing traditional windows with impact-resistant windows will help both to gain the best energy efficiencies and to protect the envelope of your home.