Metal or shingles cannot be installed on all roofs. Lower pitched roofs require a rubber membrane , or TPO material.
EPDM- (ethylene propylene diene monomer ), is a single layer rubber membrane, used for low pitched, or flat roofs. Epdm is installed by applying an adhesive over a clean surface, to bond and glue the material down. Drip edge and termination bar is installed at transitions to ensure a watertight application.
TPO- (Thermoplastic Polyolefin ) , much like epdm, tpo is a single-ply roofing membrane. However, they differ in many aspects, such as their chemical makeup, installation process, and energy efficiencies. TPO can be adhesively bonded, or mechanically fastened. A hot air gun is used to weld the seams together, versus glue with the EPDM.
Call Quaker Construction today to discuss more about the differences and find the best fit for your roof!