About chimney metal flashing

The chimney flashing is important because if prevents leaks in your roof, around the chimney. Installing on is easy if you follow some simple instructions.

Tools and Materials

  • Hammer
  • Tin snips
  • Wood block
  • Shingles
  • Roofing nails
  • Drill
  • Measuring tape
  • Caulk
  • Caulking gun
  • Blade
  • Plastic expanding anchors
  • Masonry drill bit
  • Angle grinder

Cut and bend the flashing

use snips to cut the the flashing in such a way to allow about 4 inches on each side and 8 inches or more longer than the front part of the chimney.rclma Bend the piece around the chimney sides and repeat the entire process for the chimney corners.

Secure shingles

Use a hammer and some galvanized nails to securely fasten the shingles on top of the flashing. Cut grooves in the mortar joints using an angle grinder and use a cap flashing to precisely know where to cut into.

Installing the cap

You need to install the cap flashing, bending it around the chimney. After that, drill into a corner and place an expanding plastic anchor inside.

Caulking

To effectively seal off the metal flashing, use a caulking gun to apply the necessary amount of caulk at the corners of the chimney flashing.

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