Installing Metal Roofing Over Zip Sheathing

More about wall and roof sheathing.

Installing metal roofing over zip sheathing.

Document share jobsite poster for zip system roof sheathing portuguese. The exceptions are where the local building code or roof covering manufacturers require a membrane type underlayment. To create overhangs on this house the architects designed a very cool over roof with 2 bys. Always begin working at the point with the longest peak to eave distance.

Secure the metal panel to the deck by drilling 1 1 2 inch galvanized metal screws through the peak of the rib in 12 inch to 16 inch intervals. Tate hudson a product application specialist with huber engineered woods replies. Be sure the larger edge is laid so that the small edge of the next panel will overlap it. Add purlins on top of this for venting and drainage then add horizontal purlins to mount the metal roof to.

Taped zip panels qualify as roof underlayment in most cases. When installing new shingles or roofing over existing zip system sheathing you first need to install an additional code approved roofing underlayment due to the amount of nail holes left behind from the previous roof covering. Take your first sheet of metal and place it on the roof so that it overhangs the edge at least 3 4 in 1 9 cm. Install the roofing screws vertically along each rib in the panel.

This poster is a portuguese translated overview of typical zip system sheathing details for roof applications and is formatted to be used as a printable jobsite poster. Metal panels over zip system sheathing. Work toward the ridge. The roof has continuous ventilation under the metal from eave to ridge.

Install temporary toe boards along the zip system sheathing roof surface. Install the first metal panel on the low end of the roof square to the eave. Do need to rack the house with sheathing on walls or cross bracing. Do not wear footwear with worn soles or heels.

Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof line. Ensure the roofing surface is free from oil chemicals sawdust dirt tools electric cords air hoses clothing and anything else that might create a tripping hazard. The peel and stick underlayment overlaps the zip wall panels by about 3 to 4 inches. Overlap the edge of the roof by 1 inch.

5install metal panels or shingles. Use the reinforced solitex mento plus roof underlayment on top of your rafters. Begin on the left side of the roof working to the right. This means that you don t need to install tar paper or synthetic underlayment over the roof sheathing before installing the roofing.