How To Attach A Shed Roof To An Existing Wall

If attaching a patio roof to a ledger beneath the eaves does not allow for enough headroom you can set the new patio roof s rafters on the wall s top plate.

How to attach a shed roof to an existing wall.

Prevent the splash of the rain let the air flow. The top plate on each side will overlap and attach to one adjoining wall corner. Attaching below the ridge. On a two story house you can usually tie the ledger into a band joist also called a rim joist located between the floors as shown below.

To get a cleaner and nicer look you can add some extra flashing wall covering. Add a second top plate to more securely attach the walls and to add strength and support for the roof. After that you can seal the brackets from the front. Reinstall the removed shingles or use new shingles to cover the area of the old roof which was exposed.

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. Staple on roofing paper and shingle the new shed roof starting at the bottom and working up. Most common ways to attach a patio roof to an existing house. Add decking atop the roof and nail on metal flashing where the shed roof joins the existing roof.

Repeat for the remaining two walls.