To attach a wooden nailer to a metal sided building use a self drilling screw with sufficient threads to hold the nailer tightly.
How to build a lean to shed roof.
Make sure the block is deep enough to give the desired finished floor height.
How to build a lean to shed roof step 1.
Fasten the ledger board to the studs in the existing wall with long screws and a screw gun you can remove the.
Start with a corner block.
Construct the roof supports 1 fasten the nailer to the side of your existing building where you will attach the upper end of your rafters.
Materials 7 pieces of t1 11 siding 4 x10 12 pieces of 2 6 lumber 12 6 pieces of 3 4 plywood 4 x8 2 pieces of 1 8 lumber 12 2 pieces of 1 8 lumber 16 10 pieces of 2 4 lumber 8 180 sq ft of tar paper 180 sq ft of asphalt shingles 2 1 2 screws 3 1 2 screws 1 5 8 screws 4d.
Start with the row closest to existing shed.