Tie Two Gable End Roofs Together Against An Existing House

When two gable roof lines.

Tie two gable end roofs together against an existing house.

After the addition roof is framed and sheathed snap a line on the existing roof shingles 2 in. When adding a new gabled roof addition to your home you will need to find a way of joining the two roofs together. Strip the roofing from the old roof at the connection point to expose. The easiest way to tie in the new shingles with the old is with a cut valley see four ways to shingle a valley.

Up from the valley center and cut through the shingles and underlayment. Then mount new trusses on the new addition walls. Butt the first new truss against the old one. In a standard gable roof the ridge board does not provide structural support for the roof and is used primarily as a nailing surface for the upper ends of the rafters.

Tie a new gable or hip roof to an existing gable or hip roof with valley rafters which perform the same function as ledgers. Either the addition is added to form a t shape to the house with the ridge running perpendicular to the main house roof or the addition is continued on the end of the house making it longer with the ridge running the same way as the existing house. Tying in to an existing gable roof. Tie into the end of an existing gable roof by removing existing facing boards wall siding and any other obstructions back to the first truss of the old roof.

After that to make it flush with the roof of the existing house cut the two outer rafters. Called tying in this helps to weatherproof and strengthen the joint. Now you can begin assembling the outer rafters and attaching the rafter beam to the edge of the roof of the house. If you are building an addition to an existing house with a gable roof you will have to remove shingles and decking on the old roof to connect the new roof.

Attach the horizontal beam by using a nail gun. Here we will focus on adding length to the end of a house roof.