How To Tie A Roof Into A Trussed Roof

If you decide on a shallow pitch porch roof use 2 by 6 foot rafters.

How to tie a roof into a trussed roof.

This is an important job and needs to be done. To scribe the roof angle on the ridge a length of stock is leveled over from the common rafters and a 2 by scrap is set against the sleepers. The new roof will need to be cut to the right angle so that it fits snugly against the roof. Step 3 connecting the new roof.

Use screws to secure the rafter to the sill plate. You have to do it thoroughly so that the rafters sit flush on it. Attach the horizontal beam by using a nail gun. The roofing cement will resist possible leaks overnight.

The porch roof may match the pitch of your home or have a more shallow roof pitch. After the addition roof is framed and sheathed snap a line on the existing roof shingles 2 in. The easiest way to tie in the new shingles with the old is with a cut valley see four ways to shingle a valley. This is important to minimize the chance of any water being able to penetrate the gap.

After the ridge is cut to the correct angle and length it s nailed into place. Up from the valley center and cut through the shingles and underlayment. Make a cutting on one of the sides of the horizontal roof beam on an angle. Cut two rafters with a circular saw to the pitch of the addition roof and nail them across the rafters on the old roof.

Joist hangers can help you mount each rafter to the house. The positioning of your rafters will depend on the pitch of the porch roof. The new roof now needs to be connected by nailing through the board into the joists.