How To Tie A New Roof To An 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.

How to tie a new roof to an existing roof.

The lower the slope the further it should extend. After the addition roof is framed and sheathed snap a line on the existing roof shingles 2 in. After nailing down these two boards dab roofing cement on the nails and along the outside edge. The roofing cement will resist possible leaks overnight.

Set the last truss or set of rafters for the new roof at the outside edge of the existing roof. 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. Now take the 4x4 beams and erect them to the perimeter outside the porch about four feet apart. First the 4x4 beams need to be cut to the size of the existing roof so the porch roof and the edge of the existing roof will be even when the job is complete.

The new flashing should go under the old felt and over the new felt and new roll roofing. Tying in to an existing gable roof. Then mount new trusses on the new addition walls. Roofing nails to the existing structural sheathing.

The ends of the shed rafters. Measure between that truss or rafter and the valley rafters with a tape measure and cut short rafters. Up from the valley center and cut through the shingles and underlayment. Chip away the existing gravel exposing the stone underneath.

Depends on the slope of the new roof. If you don t remove the stone and you put new roof over it the water will get underneath the gravel so make sure you clear it away. The big idea is that layers of the lower roof should sit below corresponding layers of the upper roof.