Then, add screws approximately every 8 inches along the outside edge and bottom of the panel. Now slide a washer onto a 1 ½-inch wood screw and use your screwdriver to secure it to the plywood of the roof.Īs a rule of thumb, you want it to be tight enough to hold it in place, but not so tight that you’ve dimpled the metal. When you start with the first metal panel, position it so that it overhangs the edge by at least 4 inches. You can think of this process as moving across the bottom of the roof and then progressively getting higher and higher until you reach the peak. After you have finished each row of panels, you will then need to start a new row that overlaps the old row by at least 4 inches. When laying the metal, you will need to start from the bottom corner of the roof and work across. Step 4: Lay and secure the first metal panel Make sure you overlap each layer by at least 4 inches. Attach the roofing felt with roofing staples. The roofing felt will lay horizontally along the plywood deck of the roof. (Instead, you can just secure the metal roof directly to the wooden beams.) Cut the roofing felt to fit with a utility knife.
If you are installing a metal roof on a structure like a patio cover, you may not need this insulation layer. The purpose of the roofing felt is to create a layer of insulation. If you need to cut the sheets, you can use an angle grinder, a saw or tin snips. Washers and screws Corrugated metal roof installation instructions.Metal panels (either tin or galvanized steel).The following items will be needed as part of this DIY project: Tools required for installing corrugated metal roofing In most cases, the corrugated metal roofing will create a rustic design that is perfect for a garden or patio area. This is especially true since the dips and swells of the corrugated metal come in different widths and shapes. 3 Corrugated metal roof installation safety.2.8 Step 8: Attach the peaked ridge cap.2.7 Step 7: Lay and secure the metal panels on the other side.2.6 Step 6: Finish the first side of the roof.2.4 Step 4: Lay and secure the first metal panel.2 Corrugated metal roof installation instructions.1 Tools required for installing corrugated metal roofing.