How To Build A Metal Lean To Roof

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.

How to build a metal lean to roof.

When attaching ledger board to an existing wall install proper flashing when required. Place corner pieces where panels will meet bends at the edge of the roofing. Measure the height at which the. 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.

Next place the supporting posts into the notches. Use right size of rafters and headers. For shingles or 24 o c. How to attach a lean to to an existing metal building step 1.

This is where the supporting post will rest. Place the starting panel onto one edge of the roof. Space rafters either 16 o c. Compute the depth of the shed by taking the square root of the difference.

Design lean to roof per your local building codes. Determine where the lean to will be attached to the existing building. Plan ahead and build the roof to the size of the metal panel. The side of the panel that has a slightly flat side is to place on the roof.

Draw a right angled triangle on a piece of paper that shows the length of the roof and the planned height of the opening. Cut out a notch on the top of your posts as shown in the image above. The preferred spot would place the.