How To Tie Existing Roof Shingles

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.

How to tie existing roof shingles.

You want to be about two inches above the very center of the valley itself. 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. The easiest way to tie in the new shingles with the old is with a cut valley see four ways to shingle a valley. Now it is time to use a cut valley in order to tie the new shingles in with the old roofing system.

The most trusted miami roofing contractor professionally describes the installation of thi. This video shows the transition of a shingle roof to a metal roof. 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. I put roofing felt down under the two rows of the existing shingles as shown in the image.

The roofing cement will resist possible leaks overnight. I will be creating a new valley on one side and tieing into the existing shingles on the other. I am almost done roofing it. The image below depicts the current status.

Up from the valley center and cut through the shingles and underlayment. After framing and sheathing the new addition s roof snap a line over the existing roof shingles. 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.