How To Seal Around A Chimney On A Metal Roof

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.

How to seal around a chimney on a metal 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 rubber boot is trimmed to fit around the pipe and then secured to the roof with screws and sealant. Panels above the chimney should be removed. 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.

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. Most often when a chimney leaks the leak originates in that spot. Seal the sides of the chimney with prebent pieces of step flashing under each course of shingles photos 4 and 5. Bend legs up the chimney sides about 1 inch.

The flashing can be installed quickly and easily with kits that use rubber pipe boots. Galvanized roofing nails about every 6 in. Trim panels to fit around the chimney. Slide the prebent and soldered chimney saddle into place behind the chimney.

Drill a small hole in this spot to mark the chimney s center. Leaks around fireplace chimneys are common and can be hard to identify the source. To do this ask an assistant to observe the area of the ceiling near the chimney and run water along the sealed gaps of the. A silent movie about flashing a metal roof into a brick chimney from unioncorrugating.

Applying roofing cement to gaps between metal flashing and the chimney. When installing a chimney for a wood stove on a metal roof you ll first need to assess the position. Water test the roof at the area of the chimney using a garden hose. Along the edges or closer if necessary to flatten the metal.

Chimney pipes on metal roofs must be flashed in order to create a watertight seal around the pipe and prevent leaks through the roof.