Depends on the slope of the new roof.
How to tie in new roof to existing roof.
Tie a new gable or hip roof to an existing gable or hip roof with valley rafters which perform the same function as ledgers.
The easiest way to tie in the new shingles with the old is with a cut valley see four ways to shingle a valley.
The big idea is that layers of the lower roof should sit below corresponding layers of the upper roof.
The new flashing should go under the old felt and over the new felt and new roll roofing.
Now you have tied in the porch roof addition to the house.
Install the 2x4 joists with some screws and brackets to the house edge.
Now you are ready for the installation of the roof and the shingles that you can pick out your local home improvement store.
The edge of the roof of the house and the frame to the porch should be seamless now.
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.
Tie a new roof to an existing gable differently.
Strip the roofing from the old roof at the connection point to.
After the addition roof is framed and sheathed snap a line on the existing roof shingles 2 in.
The lower the slope the further it should extend.
Roofing nails to the existing structural sheathing.
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.
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.
Up from the valley center and cut through the shingles and underlayment.