How To Tie Existing Roof Shingles

The most trusted miami roofing contractor professionally describes the installation of thi.

How to tie existing roof shingles.

The image below depicts the current status. 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. After framing and sheathing the new addition s roof snap a line over the existing roof shingles. You want to be about two inches above the very center of the valley itself.

Now it is time to use a cut valley in order to tie the new shingles in with the old roofing system. I will be creating a new valley on one side and tieing into the existing shingles on the other. I put roofing felt down under the two rows of the existing shingles as shown in the image. 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 roofing cement will resist possible leaks overnight. 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. After the addition roof is framed and sheathed snap a line on the existing roof shingles 2 in. 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.

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. 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. I am almost done roofing it. This video shows the transition of a shingle roof to a metal roof.