Standing Seam Metal Roof Installation Details

We cover all the basics of metal roof installation.

Standing seam metal roof installation details.

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. Pancake screws are used because they are strong and yet have a low profile that does not interfere with panel and trim installation. For nail strip panels one pancake screw is required every 12 24 inches depending on wind requirements. Unlike steel and aluminum shingles standing seam panels should not be installed over the existing asphalt shingles.

If you have chimneys skylights dormers and or valleys on your roof we recommend you leave this task to a seasoned professional installer because it s really easy to make costly mistakes when installing metal flashing and other details. Standing seam roofing is particularly noted for its use of hidden fasteners. Standing seam consists of sheet metal roofing panels joined side by side and attached to the roofing deck with concealed fasteners. For do it yourself enthusiasts for your first installation we recommend installing standing seam on a simple gable roof with minimum roof penetrations.

From underlayment venting layout. Applicability the metal roof system as described within this manual is classified as a standing seam metal roof panel. Panels are mechanically attached with hidden fasteners to a continuous solid substrate with an underlayment.