Almost all of our new customers ask about the need for hurricane resistant windows. Many people have heard that this is a requirement to build a new home on Cape Cod, however this is not entirely true. The need for hurricane or "impact-resistant" glass in a home is determined by an imaginary line drawn around the Cape, running 1 mile inland from the mean high water line at the coast. The state calls this area the "Wind Borne Debris Zone."

  Impact-resistant windows are very expensive, running at least twice the cost of traditional windows, and provide protection against flying debris that could damage a standard window, and could subject the home to substantial pressure differentials in high wind conditions.  If a window breaks under these conditions, the pressure differential could cause the windows on the other side of the house to completely blow out.   However, the building code allows for a much less expensive alternative, which consists pre-cut OSB panels with a specific screw pattern that can be left at the house, only to be installed in the case of a storm. This is a good alternative, but it does require that the panels be installed and removed with every storm event. You should also check with you insurance company, as there may be substantial differences in wind deductables and rates based on the use of impact glass vs. wood panels.

Here is a link from the Massachusetts Board of Building Regulations and Standards listing FAQ's about the wind borne debris zone, and showing the map of the acutal zone: http://www.mass.gov/eopss/docs/dps/inf/bbrs-pdf-ppt-faq-wind-borne-debris-regions-all-ma-12-20-07.pdf

If you are thinking of building a new home or contemplating a major renovation on Cape Cod and would like to know if your home falls in the wind borne debris zone click here to find out: CONTACT US