Can a Galvalume SSR be installed over an old flat built-up roof?
A Galvalume SSR is an ideal system for retrofit roofing. Its light weight makes it suitable for retrofit applications over any old, leaking, conventional, nonmetallic roof system. Retrofitting is accomplished by installing to the existing roof structure a light weight sub-framing system, generally made with light structural steel sections, that provides a minimum :12 slope for the new Galvalume SSR. By installing the roof directly over the existing nonmetallic roof, costly and time-consuming tear-offs are eliminated, and activities inside the building can continue without interruption. Are Galvalume roofs offered with a warranty? Regarding warranties, a purchaser needs to consider the two types of Galvalume roofs that are used — structural and architectural systems. Structural systems are those, such as SSR, that are installed directly on the roof structural system (i.e., purlins), without decking. These are low slope systems, up to about 1:12 pitch, using bare, heavier gauge Galvalum
