How To Shingle A Roof Around A Chimney

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.

How to shingle a roof around a chimney.

Flashing the area of a chimney with a rubber roof system is very tricky. Trim panels to fit around the chimney. However metal flashing crickets with seams at the apex or within the system are subject to leakage no matter how much sealant is applied. According to the federal emergency management agency fema improper roof flashing could lead to wood rot and even deck collapse.

How to buy chimney flashing making sharp straight bends in sheet metal is tricky unless you have access to a tool called a sheet metal bending brake. Next lay the first full row of shingles so they re directly covering the starter row. Now images of specifications for a chimney head flashing are hard to find for some reason they always like to show a cricket behind the upper side of a chimney. Instead sealing the chimney crown with a liquid sealant we used a rubber membrane.

Continue laying your shingles horizontally up the roof. A silent movie about flashing a metal roof into a brick chimney from unioncorrugating. Bend legs up the chimney sides about 1 inch. If you hit a stack vent or chimney interlace the shingles with the flashing to allow water to run down the roof.

The lower step flashing. Shingle over the portion of the saddle that rests on the roof and cut the shingles neatly along the valley leaving about 2 in. The proper installation of shingles and flashing will prevent leaks from happening saving you the trouble of reinstalling the roof before it is needed. The flashing on a chimney is one of the biggest reasons for roof leaks.

That part of the flashing is very vulnerable to leaks. And the upper counterflashing. The bent edge should fit around 1 corner of the chimney. Most of the time the metal flashing has to be inserted into a slot into the face of the brick.

Cut two opposing 45 degree notches into z closure to allow a 90 degree bend. But below is an image of a masonry chimney with a chimney head. Panels above the chimney should be removed. This head flashing view from lower on the roof shows it extending beyond the width of the chimney and diverting the runoff around the edges of the masonry chimney.

Installing shingles around the chimney is particularly important as the joins between the surface of the roof and the vertical surface of the chimney creates the ideal place for leaks to occur. Hammer 4 galvanized roofing nails into. Use tin snips to clip the flashing at the point where the other side of the chimney lies against the flashing. A typical roof to chimney flashing will consist of two parts.

The part of the flashing that lies flush with the roof should overlap the roofing shingles. The cricket can be made of shingles and roofing materials or flashed with metal.