How To Attach A Shed Roof To An Existing Wall

Add a second top plate to more securely attach the walls and to add strength and support for the roof.

How to attach a shed roof to an existing wall.

Attaching below the ridge. Read on to find out how to attach a patio roof to an existing house. Most common ways to attach a patio roof to an existing house. Repeat for the remaining two walls.

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. To get a cleaner and nicer look you can add some extra flashing wall covering. 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. The most common roof to wall intersections involve either a gable roof with its ridge running perpendicular to the wall or a shed roof that slopes downward away from the wall.

This will occur at all four corners adding an additional attachment point for each corner. The top plate on each side will overlap and attach to one adjoining wall corner. Staple on roofing paper and shingle the new shed roof starting at the bottom and working up. After that you can seal the brackets from the front.

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.