How To Seal Metal Roof Around Chimney

Leaks around fireplace chimneys are common and can be hard to identify the source.

How to seal metal roof around chimney.

Panels above the chimney should be removed. Seal the sides of the chimney with prebent pieces of step flashing under each course of shingles photos 4 and 5. The rubber boot is trimmed to fit around the pipe and then secured to the roof with screws and sealant. Trim panels to fit around the chimney.

Bend legs up the chimney sides about 1 inch. Galvanized roofing nails about every 6 in. Cut two opposing 45 degree notches into z closure to allow a 90 degree bend. Chimney pipes on metal roofs must be flashed in order to create a watertight seal around the pipe and prevent leaks through the roof.

The 1 000 or so that you will have to spend to hire a professional and pay for the materials required will rid you of worries for over a decade. The flashing can be installed quickly and easily with kits that use rubber pipe boots. Along the edges or closer if necessary to flatten the metal. Even if you are not comfortable with climbing up to the roof and doing it yourself it makes more economic sense to hire a professional to do the sealing than to leave the chimney unattended.

Slide the prebent and soldered chimney saddle into place behind the chimney. Chimney roof leaks are usually caused by gaps or cracks between the metal flashing used to join the chimney to the roof and the chimney. 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. Most often when a chimney leaks the leak originates in that spot.

Place the chimney where it would be related to the stove and mark the center of the chimney on the ceiling. Nail it to the roof along the top edge. A silent movie about flashing a metal roof into a brick chimney from unioncorrugating. Water test the roof at the area of the chimney using a garden hose.

Applying roofing cement to gaps between metal flashing and the chimney.