7 Best Of How To Seal Roof Flashing HD Image Size. One laying involves tightly playing sheet metal around the chimney edges. Rake flashing also comes in Type A for use on new roofs and should be installed before the felt paper.
Feb 17 2020 Getting the right sealant on your flashing is the best bet. Any nail screw or rivet that fastens something to the roof deck should be hidden under roofing material. Seal the seam between the cap and step flashing with urethane roofing cement or silicone caulking compound as shown at right.
Using the circular saw and masonry blade cut a slot about 15 inches into the brick so that the overlapping flashing or counter flashing will slide into the slot.
Effective roof flashing around a chimney includes two layers. Renew flashing seals by chipping out the old mortar and caulking along the edges of the flashing. Once youve shingled up to the sidewall cut a piece of step flashing at a 45. In the second layer more sheet metal is inserted into the chimney mortar joints and folded over to cover the first layer.