How To Install Standing Seam Metal Roof Panels

This technique provides the cleanest look and shows no exposed fasteners.

How to install standing seam metal roof panels.

In cold weather slide the panels tight against the eave flashing and in warm weather allow a gap for expansion. The connecting point where the two separate metal panels meet forms a vertically pointed rib or a seam that is one inch to inch and a half high. Start the installation of the underlayment at the intersection of an eave and a gable end and then roll it out parallel to the eave end. First of all if you install a standing seam metal roof over asphalt shingles there will be a so called telegraphing effect where shingles can punch horizontal lines in standing seam panels.

Allow each consecutive course to overlap the previous one by at least four to six inches. Unlike steel and aluminum shingles standing seam panels should not be installed over the existing asphalt shingles. There are two main reasons. Overlap the end a minimum of six inches when starting a new roll of underlayment.

Fasten panel side with number ten pancake head screws and the top of the panel with three number fourteen mill points. Standing seam consists of sheet metal roofing panels joined side by side and attached to the roofing deck with concealed fasteners.