Installing Metal Roofing Over Zip Sheathing

Always begin working at the point with the longest peak to eave distance.

Installing metal roofing over zip sheathing.

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. Do need to rack the house with sheathing on walls or cross bracing. More about wall and roof sheathing. Overlap the edge of the roof by 1 inch.

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. Tate hudson a product application specialist with huber engineered woods replies. Do not wear footwear with worn soles or heels. Install temporary toe boards along the zip system sheathing roof surface.

The roof has continuous ventilation under the metal from eave to ridge. Use the reinforced solitex mento plus roof underlayment on top of your rafters. Install the roofing screws vertically along each rib in the panel. 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.

To create overhangs on this house the architects designed a very cool over roof with 2 bys. 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. Work toward the ridge.

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. 5install metal panels or shingles. The peel and stick underlayment overlaps the zip wall panels by about 3 to 4 inches. Installing zip system sheathing in a roof application.

Install the first metal panel on the low end of the roof square to the eave. Taped zip panels qualify as roof underlayment in most cases. Add the metal panels. 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.

Add purlins on top of this for venting and drainage then add horizontal purlins to mount the metal roof to. This means that you don t need to install tar paper or synthetic underlayment over the roof sheathing before installing the roofing. Begin on the left side of the roof working to the right. Take care the first piece is aligned precisely perpendicular square to the edge.