Installing Metal Roofing Over Zip Sheathing

Install the first metal panel on the low end of the roof square to the eave.

Installing metal roofing over zip sheathing.

Install temporary toe boards along the zip system sheathing roof surface. Work toward the ridge. Do not wear footwear with worn soles or heels. 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.

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. Always begin working at the point with the longest peak to eave distance. The peel and stick underlayment overlaps the zip wall panels by about 3 to 4 inches. 5install metal panels or shingles.

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. Metal panels over zip system sheathing. Taped zip panels qualify as roof underlayment in most cases. Be sure the larger edge is laid so that the small edge of the next panel will overlap it.

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. Install the roofing screws vertically along each rib in the panel. Take care the first piece is aligned precisely perpendicular square to the edge. Installing zip system sheathing in a roof application.

Begin on the left side of the roof working to the right. Use the reinforced solitex mento plus roof underlayment on top of your rafters. Do need to rack the house with sheathing on walls or cross bracing. Add the metal panels.

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. The roof has continuous ventilation under the metal from eave to ridge. More about wall and roof sheathing. The exceptions are where the local building code or roof covering manufacturers require a membrane type underlayment.

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. Overlap the edge of the roof by 1 inch. This means that you don t need to install tar paper or synthetic underlayment over the roof sheathing before installing the roofing. Add purlins on top of this for venting and drainage then add horizontal purlins to mount the metal roof to.