Plan ahead and build the roof to the size of the metal panel.
How to build a metal lean to roof.
Use right size of rafters and headers.
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.
When attaching ledger board to an existing wall install proper flashing when required.
Compute the depth of the shed by taking the square root of the difference.
How to attach a lean to to an existing metal building step 1.
If it is needed cut the metal roof panel to the length you need with tin snips hopefully you don t have too.
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.
Cut out a notch on the top of your posts as shown in the image above.
Draw a right angled triangle on a piece of paper that shows the length of the roof and the planned height of the opening.
This is where the supporting post will rest.
For shingles or 24 o c.
Measure the height at which the.
The side of the panel that has a slightly flat side is to place on the roof.
Place corner pieces where panels will meet bends at the edge of the roofing.
Determine where the lean to will be attached to the existing building.
Place the starting panel onto one edge of the roof.
The preferred spot would place the.
Cut the 6 inch thick lumber into blocks that run the length of the lean to.
Space rafters either 16 o c.