Recommended Repair Methods for Flashing

Peel & Stick Flashing:

  • Punctures:
    • If the hole is the size of a penny or smaller use a compatible sealant to cover the hole.
    • If the hole is larger than a penny, you should make a patch of another piece of the same flashing and seal all edges.
    • If the hole is large, you should cut out the piece of flashing and install a new piece of flashing into that run of flashing and make sure that it is overlapped at least 6” and sealed appropriately.
  • Tears or rips:
    • Small tears, 0” – 2,” should be sealed with a compatible sealant.
    • Short to medium size tears, 2” – 4”, need to have a patch made of the same material placed over or under it and sealed thoroughly.
    • Large tears, greater than 4”, should have the flashing removed and a new piece of flashing installed  in its place and make sure that it is overlapped at least 6” and sealed appropriately
  • Patches of wrinkled or unadhered material (also known as fish mouthing or bubbles)
    • The product should be applied to the wall and the use of a roller is recommended to roll the product against the substrate.
    • If these wrinkles still appear, take the flashing off and replace it with a new piece of flashing

Copper or Stainless Steel Fabric Flashing:

  • Punctures:
    • If the hole is the smaller than a penny use a compatible sealant and/or York304 to cover the hole.
    • If the hole is larger than a penny, you should make a patch of another piece of the same flashing and seal all edges.
    • If the hole is large, you should cut out the piece of flashing and install a new piece of flashing into that run of flashing and make sure that it is overlapped at least 6” and sealed appropriately.
  • Loose scrim:
    • The scrim on copper fabric flashings is to add strength against punctures and tears during installation.
    • Should the scrim become detached carefully remove any loose scrim at bonding points (lap joints, corners, end dams and brick ledge) and bond with recommended adhesive.
    • The fiberglass scrim is an open weave that will allow penetration of sealant resulting in a proper bond.
  • Tears or rips:
    • Small tears, 0” – 2”, should be sealed with a compatible sealant.
    • Short to medium size tears, 2” -4”, need to have a patch made of the same material placed over or under it and sealed thoroughly.
    • Large tears, more than 4”, should have the flashing removed and a new piece of flashing installed in its place and make sure that it is overlapped at least 6” and sealed appropriately.

 

Copper fabric flashing drainage system:

  • Punctures:
    • If the hole is the size of a penny or smaller use a compatible sealant to cover the hole.
    • If the hole is larger than a penny, you should make a patch of another piece of the Multi-Flash material, place it on the underside of the flashing and seal all edges around the patch and seal the hole from above with a compatible sealant.
    • If the hole is large, you should cut out the piece of flashing and install a new piece of flashing into that run of flashing and make sure that it is butted against the next piece, that there is a 12” piece of Multi-Flash underneath this lap and sealed appropriately.
  • Loose scrim:
    • The scrim on copper fabric flashings is to add strength against punctures and tears during installation.
    • Should the scrim become detached carefully remove any loose scrim at bonding points (lap joints, corners, end dams and brick ledge) and bond with recommended adhesive.
    • The fiberglass scrim is an open weave that will allow penetration of sealant resulting in a proper bond.
    • If the wicking fabric becomes slightly loose, that is not a problem, since the material is a wicking layer that just needs to sit on top of the flashing.
  • Tears or rips:
    • Small tears, 0” – 2”, should be sealed with a compatible sealant.
    • Short to medium size tears, 2” – 4”, need to have a patch made of the Multi-Flash material placed under it and sealed thoroughly.
    • Large tears, longer than 4”, should have the flashing removed and a new piece of flashing installed in its place and make sure that it is butted tightly to the next piece, that it has a Multi-Flash splice piece underneath it and sealed appropriately.

PVC:

  • Punctures:
    • If the hole is the size of a penny or smaller use a compatible sealant to cover the hole.
    • If the hole is larger than a penny, you should make a patch of another piece of the same flashing and seal all edges.
    • If the hole is large, you should cut out the piece of flashing and install a new piece of flashing into that run of flashing and make sure that it is overlapped at least 6” and sealed appropriately.
  • Tears or rips:
    • Small tears, 0” – 2”, should be sealed with a compatible sealant.
    • Short to medium size tears, 2” – 4”, need to have a patch made of the same material placed over or under it and sealed thoroughly.
    • Large tears, larger than 4”, should have the flashing removed and a new piece of flashing installed in its place and make sure that it is overlapped at least 6” and sealed appropriately.