Choose a roof pitch 3 12 and roof structure 2x6 this places the new roof on top of the existing roof.
How to add an awning to an exisiting roof.
Any water runoff will flow off of the main roof and hit the lean to at an angle to prevent pooling and flooding in the lean to.
If necessary use a sliding bevel to determine angles needed where the rafters will meet the ledger board.
Most common ways to attach a patio roof to an existing house.
Calculate the sightline clearance height about 6 feet 2 inches in this case.
The ends of the shed rafters.
Make the patio roof a little bit higher.
Work from the view back not from the house out.
Fix the back channel to the fascia boards underneath the gutter directly.
This method may be one of the most ubiquitous ways of attaching a.
Rafters are placed on 24 centers and attached to the beams and settle joists are attached as needed image 1.
Attach 2x6 rafters to the house with joist hangers and or supported by the ledger board.
8 inches in this case.
You ll need to remove the existing shingles and cut back the existing eaves to make room for the shed roof then nail a two by six ledger board on the existing roof.
Install some riser brackets for more height.
Determine where the lean to will be attached to the existing building.