How To Seal A Metal Roof Seam

They should exhibit a non stringy consistency with easy cut off characteristics for clean application.

How to seal a metal roof seam.

The chances are very good that you have come across a metal roof on a building that you are responsible for. Lay 3 inch wide butyl tape over all vertical metal. Position the tape with the release backing on the. Apply a 1 4 inch wide bead of caulk over the seam where the two panels overlap.

You might be responsible for managing a commercial or industrial property that has a standing seam metal roof system. Lay 6 inch wide butyl tape over all horizontally lapping end seams. Non skinning non drying butyl sealants are the primary sealant in standing seam roofs and the joints of insulated metal panels. Sweep the metal roofing sheets of all dirt and debris with a push broom.

Step 2 insert a tube of butyl caulking into a caulk gun and snip the end off using sharp scissors. The expansion and contraction on this standing seam metal roof caused an expansion in the fastener holes. Walk to one end of the roof and locate the seam where the first row of panels overlap the second row. Designed to stay soft and flexible they ensure a positive seal when jointing roof or wall panels.

Leaking metal roof stack sealed on a standing seam roof.