How To Build A Metal Lean To Roof

Space rafters either 16 o c.

How to build a metal lean to roof.

How to attach a lean to to an existing metal building step 1. The side of the panel that has a slightly flat side is to place on the roof. Cut the 6 inch thick lumber into blocks that run the length of the lean to. When attaching ledger board to an existing wall install proper flashing when required.

Use 1 1 4 inch nails to cover the outline of the roof with strips of metal eave flashing also called edging. Compute the depth of the shed by taking the square root of the difference. This is where the supporting post will rest. Design lean to roof per your local building codes.

Place the starting panel onto one edge of the roof. The preferred spot would place the. Draw a right angled triangle on a piece of paper that shows the length of the roof and the planned height of the opening. Place corner pieces where panels will meet bends at the edge of the roofing.

Next place the supporting posts into the notches. Things you ll need ledger board 2 by 4 inch or 2 by 6 tape measure circular saw long screws screw gun level 2 by 4 inch rafter boards framing nails hammer 1 by 4 inch strip sheathing corrugated metal roofing steel or aluminum galvanized or aluminum screws with plastic washer tops metal flashing. If it is needed cut the metal roof panel to the length you need with tin snips hopefully you don t have too. Determine where the lean to will be attached to the existing building.

If there are gutters installed on the eaves the eave flashing should be installed to overhang the lip of the gutter by about 1 2 inch. For shingles or 24 o c. Measure the height at which the.