The edge of the roof of the house and the frame to the porch should be seamless now.
How to tie in new roof to existing roof.
Now you are ready for the installation of the roof and the shingles that you can pick out your local home improvement store.
Strip the roofing from the old roof at the connection point to.
The new flashing should go under the old felt and over the new felt and new roll roofing.
Install the 2x4 joists with some screws and brackets to the house edge.
The easiest way to tie in the new shingles with the old is with a cut valley see four ways to shingle a valley.
Tie a new roof to an existing gable differently.
Now you have tied in the porch roof addition to the house.
To tie into the side of an existing roof put a new roof truss on the walls of the addition brace it upright then snap chalklines on the shingles to mark the center line of the new roof valleys where old and new roofs will connect.
Depends on the slope of the new roof.
Up from the valley center and cut through the shingles and underlayment.
In this video we show you how to tie in an existing roof with a new roof to avoid any future leaks or issues putting you back where you started.
When a shed roof ties into an existing roof the new roof could be a simple lean to that covers a deck or porch or it could be the shed roof of a substantial addition.
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The big idea is that layers of the lower roof should sit below corresponding layers of the upper roof.
Roofing nails to the existing structural sheathing.
The roof i.
The lower the slope the further it should extend.