How To Attach A Flat Roof To An Existing Roof

Make a cutting on one of the sides of the horizontal roof beam on an angle.

How to attach a flat roof to an existing roof.

Attach ledger boards to the joists at the site of the junction if you are connecting the flat roof below the hip roof fascia. After this roofing cement is applied around the complete area and then the missing tiles are replaced. To install it slide the flat wide flange underneath. It is the process where roofers install a new roof over your existing one i e.

Attach the horizontal beam by using a nail gun. Attaching below the ridge. Fit rafter board into the u shaped hangers and nail it in place. Add a new layer of shingles which means that there is no tearing off of the old roof.

After that to make it flush with the roof of the existing house cut the two outer rafters. Add decking atop the roof and nail on metal flashing where the shed roof joins the existing roof. Flashing and more roofing compound are used to weatherproof the joint. Otherwise remove the soffit and fascia from the hip roof on that side.

In the case of a lean to roof over an addition the existing rafters will have to be cut away to accommodate the addition and the shed roof will require support where. How to tie a additions roof to existing roof roof designs to attach to existing home how to construct a roof from an exsisting shead how to attach a deck roof to existing roof how to add a roof over porch cost to tie into existing roof attache porch roof on house attach shed roof to house adding a roof to screened in porch adding a roof to existing. The roof needs to be tied in by lifting up some of the original tiles on the existing roof and then allowing the flat roof to run slightly underneath. 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.

You have to do it thoroughly so that the rafters sit flush on it. Roofing over an existing roof is also called reroofing or an overlay.