How To Tie A New Roof Into An Old One

If it comes out to an odd number like 7 5 adjust the spacing to make it 8 rows.

How to tie a new roof into an old one. Tying a new roof into an old one fine homebuilding this article answers the question what s the best way to attach two roofs included is a discussion of the mike guertin s a builder and remodeler in east greenwich steps and process to safely tie a new roof to an old roof. After the addition roof is framed and sheathed snap a line on the existing roof shingles 2 in. The roof i. Strip the roofing from the old roof at the connection point to.

Measure your roof from the bottom to the top of your porch roof plus one row your last shingles will slide under your home s shingles. The easiest way to tie in the new shingles with the old is with a cut valley see four ways to shingle a valley. 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. 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 gives you the number of rows of shingles you will need. 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.