Building Envelope News

Survey of Roof Membrane Materials

Category: Roofing
Original date published: 2004-05-12

The last 30 years have seen a rapid growth in roofing technology. This growth in roofing technology has been driven by building designers and owners demanding roofing systems with excellent longevity at a fair price.

The criteria of long term performance and affordable pricing are difficult to reconcile. Roofing materials must perform in a severe environment. Large thermal stresses, ozone attack, ultraviolet (UV) exposure, and mechanical stresses must be accommodated in order for a roofing material to be successful. Each roof system is assembled in place from many discrete components. Excellent workmanship is required by the roofing contractor who must pay a premium for qualified craftsmen.

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