How To Install A Garage Roof

By following the 10 simple instructions below you will be able to install a corrugated metal roof on your garage or shed.

How to install a garage roof.

B 2 pieces of 2 4 lumber 36 1 4 1 piece of 2 6 lumber 260 top ridge. When an ice dam forms on a roof usually caused by poor attic insulation ventilation ice and water can work their way up under the shingles and leak back into the house. Also strong winds can blow rainwater under shingles. Don t forget to add a vapor retarder to your garage roof insulation installation.

The roof s sheathing helps to keep the roof trusses or rafters properly spaced. This helps prevent garage floor condensation and water logging on the sheathing and wood trusses. Roof sheathing is a lot more than just flat panels onto which shingles are attached. In order to build a garage roof you need to use the following.

Install the second course just like the first using the guidelines on the underlayment to get the correct overlap. See below for a shopping list tools and steps subscr. Without getting up on the roof itself you can get the measurements simply by measuring the length and width of the roof and then multiply these. Beginning at the outside edge of your roof place each panel directly onto the purlins that are attached to the roof trusses.

Ask this old house general contractor tom silva reveals the best ways to secure shingles to a roof. Use metal flashing around vents or chimneys that might protrude through the garage roof. To install corrugated roofing start by cutting your panels to length with an angle grinder. At the peak of the roof change the direction of shingles.

If needed add roofing cement to seal the edges of the flashing. How to install roof sheathing. Continue around the roof one row at a time from bottom to top. Next pre drill holes on the end and side ridges of the panels spacing the holes 6 to 8 inches apart.

A 13 pieces of 2 4 lumber 144 long bottom rafters. C 30 pieces of 2 4 lumber 97 1 4 14 pieces 6 1 2 rafters d 14 pieces of 3 4 tongue and groove plywood sheets 4 8 decking.