How To Seal Chimney On Metal Roof

You can place a tarp over your chimney until the cement is dry but it s not really necessary.

How to seal chimney on metal roof.

Apply a generous bead of roofing sealant around the base of the pipe with the caulking. 2 lay 6 inch wide butyl tape over all horizontally lapping end seams. Position the tape with the release backing on the top. Trim the flashing in the center of the rubber boot with a roofing knife so it fits snugly around the pipe.

Some of the repellents will drip down. Apply butyl tape to the underside of the closure. Fill the areas where the base flashing spans the flat portion of the roofing profile with the same closure strips that are used to seal off the metal ridge caps. Remember that all chimney flashings need to be masked off prior to applying the sealer.

Panels above the chimney should be removed. When installing a chimney for a wood stove on a metal roof you ll first need to assess the position. Now pour the water repellent sealer into the low pressure sprayer and spray it evenly all over the chimney. How to flash a chimney pipe on a corrugated steel roof.

Place the chimney where it would be related to the stove and mark the center of the chimney on the ceiling. Drill a small hole in this spot to mark the chimney s center. These are adhesive backed foam strips that conform to the profile of the metal roofing see illustration below. You can spread a layer over the edges of the flashing where each edge meets the roof and chimney or you can coat the entire area.

You have to start from the bottom and spray the sealant on the bricks evenly. Bend legs up the chimney sides about 1 inch. Fold closure 90 degrees and. Sweep the metal roofing sheets of all dirt and debris with a push broom.

Using a compass draw out the chimney s diameter. Cut two opposing 45 degree notches into z closure to allow a 90 degree bend. Trim panels to fit around the chimney.