How To Attach A Shed Roof To An Existing Roof

Joist hangers can help you mount each rafter to the house.

How to attach a shed roof to an existing roof.

Remove the ledger and drill bolt holes where the bolt tips have left marks. Make a cutting on one of the sides of the horizontal roof beam on an angle. The positioning of your rafters will depend on the pitch of the porch roof. Choose a roof pitch 3 12 and roof structure 2x6 this places the new roof on top of the existing roof.

Add decking atop the roof and nail on metal flashing where the shed roof joins the existing roof. First cut your rafter boards to size using a circular saw to make sure they fit your roof. If you decide on a shallow pitch porch roof use 2 by 6 foot rafters. Push or hammer the ledger back onto the bolts recheck for level making any needed adjustments add washers and nuts and then tighten the bolts.

Install shed rafters from the ledger board to the outer wall using metal rafter hangers which attach to the ledger board with screws or nails. How to tie a additions roof to existing roof roof additions to existing roofs how to construct a roof from an exsisting shead how to change a roof line how to attach a deck roof to existing roof how to add a roof over porch attache porch roof on house attach shed roof to house adding a roof to screened in porch adding a roof to existing. How to build a roof over my existing deck scottmadison co how to build a roof over my existing deck costs designs how can i extend a deck post on an existing home attach a roof to an existing added over deck how to build a shed roof over deck decks adding a covered patio screened porch existing deck porches and. To build a shed roof you ll need rafter boards plywood gusset plates plywood sheathing felt roofing paper and shingles.

To tie the design together peter chose to cut the rafter tails off the extend the exterior wall up to the underside of the new roof. Make a birdsmouth notch at the end of each rafter to help it fit into place. Kick it or keep it. The next question is what to do with the existing eave under the new roof.

Use screws to secure the rafter to the sill plate. Fit rafter board into the u shaped hangers and nail it in place. You have to do it thoroughly so that the rafters sit flush on it. Flashing a patio roof ledger.

After that to make it flush with the roof of the existing house cut the two outer rafters. Attach the horizontal beam by using a nail gun.