Over Framing A Cross Gable Roof

I will be building my second home this fall if all goes well.

Over framing a cross gable roof.

Section through cornice and common rafter. By scott mcbride issue 76. A frame with a cross gable roof aurorasolarinc. How to attach home addition roof framing to existing sloping roof.

Framing a cross gable roof one good valley rafter supports another. Although a cross gable roof is mostly comprised of jack rafters the common rafter layout establishes dimensions such as the raising distance and the vertical depth that pertain to all the roof members. I have what i hope is a fairly simple question. Then a 2 4 outlooker is placed over the dropped gable and butted into the side of the adjacent full height truss.

A sidebar explains his method for calculating bevels for hip and valley rafters. Construction of a roof addition over an existing concrete patio. If a truss roof is used with this method the gable truss is manufactured 3 shorter than the others. Over framing a cross gable roof to a open great room cathedral march 2020.

Gable roof framing calculator plan diagram with full dimensions for a good straight fascia add an extra inch or 2 to the tails of all your rafters total length. If there is too much of an overhang winds can create an uplift underneath and cause the roof to detach from the walls. The framing plan below shows a bird s eye view of these parts. High winds can also cause materials to peel away from gable roofs.

Over framing a cross gable roof to a open great room cathedral we do what your asking quite often where i work usually using 2x6 rafters and 2x10 sleepers. Its a hell of alot stronger. If the frames are not properly constructed with adequate supports the roof can collapse. After they re up you can snap a line to mark and trim the tails in a nice straight line to make up for any ridge warp or marking cutting and fixing errors.

Then the barge or fly rafter is attached to the end of the cantilevered outlooker.