How To Build A Lean To Metal Roof

Determine where the lean to will be attached to the existing building.

How to build a lean to metal roof.

Roll between the garage wall and the shed roof. Compute the depth of the shed by taking the square root of the difference. The preferred spot would place the. Plan ahead and build the roof to the size of the metal panel.

Use right size of rafters and headers. Cut the 6 inch thick lumber into blocks that run the length of the lean to. I used aluminum flashing from a 50 ft. This is where the supporting post will rest.

The gable ends of the roof were also covered with metal roofing material. If it is needed cut the metal roof panel to the length you need with tin snips hopefully you don t have too. Make a ledger board to fasten to the existing wall and support the upper end of the lean to roof. For shingles or 24 o c.

The side of the panel that has a slightly flat side is to place on the roof. You must consider the following. Space rafters either 16 o c. Place the starting panel onto one edge of the roof.

Use a 2 by 4 inch board for a short roof up to about 8 feet a 2 by 6 for a longer one. Design lean to roof per your local building codes. How to attach a lean to to an existing metal building step 1. Draw a right angled triangle on a piece of paper that shows the length of the roof and the planned height of the opening.

Next place the supporting posts into the notches. Measure the height at which the. I want to use steel posts. Cut out a notch on the top of your posts as shown in the image above.

Measure the width of the outside wall and cut the board with a circular saw to the same length.