EPDM Membrane To Shingle Transition
When installing an EPDM membrane system with a tie-in to an existing shingle roof, remove a minimum of 3 courses of shingles.
Bond the membrane onto the sloped roof deck. Peel the top of the EPDM membrane back and apply a bead of Water Cut-Off Mastic between the membrane and the deck. Nail the top of the membrane every 15.24cms and install the shingles over the EPDM.