Standing Seam Metal Roof Installation Details

If you will be installing a standing seam metal roof yourself it is best to buy materials from a local sheet metal roofing supplier as many suppliers have the capability to make your standing seam panels right on a job site.

Standing seam metal roof installation details.

The detailing and attachment methods described within this manual best reflect steep. The metal roof system as described within this manual is classified as a standing seam metal roof panel. A standing seam metal roof is a costly investment and you want to protect it by getting a top quality installation that will ensure the longevity of your roof. There are two main reasons.

Panels are mechanically attached with hidden fasteners to a continuous solid substrate with an underlayment. While many corrugated steel roofs are made using the thinner 29 gauge steel a minimum of 26 gauge g 90 galvanized steel or more commonly galvalume steel better is used for manufacturing of standing seam metal panels. The reality is that even the top of the line products can fail and will need to replaced if they were not properly installed to begin with. Standing seam roofing is composed of preformed or field formed pans usually between 14 to 18 inches wide when finished.

Since this was an introductory guide to the basics of standing seam metal roof installations we purposefully left out more technical details such as z bar flashing end wall and valley flashing details however they are covered in the video above if you like to learn more about the components that go beyond the basics. This means that the minimum roof slope required for panels is 3 inches of rise per foot. The recommended dimensions should be specified from the table below. These pans run parallel to the slope of the roof and are joined to adjacent pans with double locked standing seams.

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. A 24 and 22 gauge steel can also be used. Unlike steel and aluminum shingles standing seam panels should not be installed over the existing asphalt shingles.