Metal Chimney Flashing Caulk

The next step is to mark and cut the grooves in the chimney s mortar joints to accept the cap flashing.

Metal chimney flashing caulk.

Effective roof flashing around a chimney includes two layers. It s formulated for permanent adhesion to asphalt shingles metal flashings brick and other chimney and roofing materials. Ensure the chimney s base flashing is in proper order secured to the roof as the. Chimneyrx elastomeric flashing sealant is an elastomeric sealant specially formulated to permanently adhere to asphalt shingles aluminum flashing brick and other chimney and roofing materials.

Start at the front of the chimney and mark the third mortar joint up from the roof. Chimney flashing should be installed at the same time the mason is laying the brick and mortar or the roofer will have to cut a ridge out for the counter flashing. Flashseal elastomeric flashing sealant flashseal is a versatile and easy to use flashing repair system that when dry forms a flexible waterproof membrane. Now it s time for chimney flashing sealant.

Chimney flashing is the layer of sheet metal that connects the roof to the chimney it is designed to be the seal that prevents water from entering your home by running down the chimney. One laying involves tightly playing sheet metal around the chimney edges. In the second layer more sheet metal is inserted into the chimney mortar joints and folded over to cover the first layer. Most often when a chimney leaks the leak originates in that spot.

Seal the cap flashing by caulking along the mortar joint with polyurethane caulk.