How To Seal A Metal Roof Seam

You might be responsible for managing a commercial or industrial property that has a standing seam metal roof system.

How to seal a metal roof seam.

Walk to one end of the roof and locate the seam where the first row of panels overlap the second row. How to seal between metal roofing sheets 1. Sweep the metal roofing sheets of all dirt and debris with a push broom. Designed to stay soft and flexible they ensure a positive seal when jointing roof or wall panels.

Non skinning non drying butyl sealants are the primary sealant in standing seam roofs and the joints of insulated metal panels. The chances are very good that you have come across a metal roof on a building that you are responsible for. They should exhibit a non stringy consistency with easy cut off characteristics for clean application. Leaking metal roof stack sealed on a standing seam roof.

Lay 3 inch wide butyl tape over all vertical metal. Lay 6 inch wide butyl tape over all horizontally lapping end seams. The expansion and contraction on this standing seam metal roof caused an expansion in the fastener holes. Step 2 insert a tube of butyl caulking into a caulk gun and snip the end off using sharp scissors.

Butyl caulk tape is installed at the fastener bolt nut while at the same time allowing the drain channels to continue to flow.