How To Tie Existing Roof Shingles

To do this we had to extend the plane of the shed roof out over the porch roof creating a small triangular extension of the existing roof.

How to tie existing roof shingles.

I put roofing felt down under the two rows of the existing shingles as shown in the image. I have a roll of aluminum flashing that i plan on putting over the felt at the roof intersection where there is about a 1 2 drop from the new roof osb to the existing roof. The bottom of our blind valley was about 30 inches short of the bottom of the porch roof so we extended the line of the valley down to the edge of the new roof. After the addition roof is framed and sheathed snap a line on the existing roof shingles 2 in.

I will be creating a new valley on one side and tieing into the existing shingles on the other. The roofing cement will resist possible leaks overnight. After framing and sheathing the new addition s roof snap a line over the existing roof shingles. Up from the valley center and cut through the shingles and underlayment.

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. This latest project was in early december in lambeth ontario for a residential home that had an existing sloped or shingled roof that needed to tie into a ne. You want to be about two inches above the very center of the valley itself. How to tie a additions roof to existing roof roof additions to existing roofs how to construct a roof from an exsisting shead how to change a roof line how to attach a deck roof to existing roof how to add a roof over porch attache porch roof on house attach shed roof to house adding a roof to screened in porch adding a roof to existing.

The easiest way to tie in the new shingles with the old is with a cut valley see four ways to shingle a valley. I am almost done roofing it. The image below depicts the current status. I am about to put an addition on my house and the only thing that is keeping me from doing the shingles myself is the tie in to the existing.