Flashing A Stone Chimney On A Metal Roof

On each end of the pan flashing cut about 1 1 2 in.

Flashing a stone chimney on a metal roof. And the upper counterflashing. Cut the base flashing. Rivet the pan flashing to the sidewall flashing. The lower step flashing.

Along the bend at both ends so that the flashing bends around the chimney at the bottom and overlaps at the ridge. Apply sealant to sidewall flashing where pan flashing tabs will overlap. A do it yourself video detailing step by step how to flash a chimney with our metal roofing chimney kit. Bend 1 side of the flashing around 1 edge of the chimney.

Chimney boot for a metal roof. The first part is a one piece pan that is bent at a right angle and laid with one leg against the chimney and the other on the roof. A typical roof to chimney flashing will consist of two parts. Flashing is a method of weatherproofing the base of a chimney.

Install two layers of butyl tape sealant under perimeter of pan flashing. Don t use aluminum flashing for this situation as the masonry will corrode the aluminum. Allowing for movement chimneys have a foundation which may be independent from the house. Pan flashing should extend at least 12 inches up the roof plane.

For a better connection hem the end of the metal being inserted into the stone and tap in small v shaped pieces of metal to open the hem and wedge both sides of the hem to the reglet. Cut and fold pan flashing to fold up the back of the chimney and over the sidewall trim. Use tin snips to cut the bent base flashing that you ordered from the sheet metal shop. Comprised of step tins rubber or some other type of membrane.

A piece of metal that is sealed to the chimney surface and covering the top of the step flashing to form a water tight barrier by directing water over and away from the step flashing. In any case the roof deck may move relative to the masonry chimney and good flashing details anticipate. Each leg should be about 6 in. Round metal chimneys will be flashed much like pipes.

Let s focus on masonry chimneys since they are the most challenging and one of the most common.