Rigid Roof Covering
Learn about insulation and cover boards.
Rigid roof covering. Sec tion 1508 roof insulation contains requirements for roof insulation. The dura foam roof system has a rigid and durable surface that you can walk on. On the contrary when a gcp underlayment is installed directly to rigid roof insulation under a metal roof covering there is little or no heat sink effect and therefore excess heat is not transmitted through the membrane. A thick typically 1 5 thick closed cell polyurethane waterproofing barrier seals the roof against leaks.
Eps is by far the most versatile of the three rigid insulation options. It can be applied on the roof floor and walls and it s most widely used in structural insulated panels and insulated concrete forms. Excess heat build up in the membrane is transferred to the structural roof deck. When it comes to estimating the weight of an existing roof field verification of the in place construction is necessary.
The covering applied to the. Spray polyurethane foam spf is the only roofing material that has no seams. Eps is also the most inexpensive of the three types of rigid foam insulation while also meeting the required building and energy codes. The term is defined in section 1502 definitions as.
Foam roofing bonds around roof penetrations such as pipes vents and edges. Get to know more about one of the most popular commercial roofing systems.