Notching Roof Rafters

Notching roof rafters to headers.

Notching roof rafters.

At the top where the rafters meet they are either angled to meet at a point or attached to a horizontal ridge beam. Please consult a professional before making any cuts i am not a professional framer or roofer nor do i claim to be. If you ve wondered how to frame a lean to roof off a pole barn this video will show you how i did it. Birdsmouth joints cut into roofing rafters and mounted in place on top of the wall plate.

This trick worked for me. Use a tape measure to measure the entire width of your building. Up here notching the gable end truss is common it is done to support the lookouts and fascia on the end of the gable. Since the webbing in the truss is vertical it is considered by building inspectors to be ok.

To cut sloping rafters for a house attached patio roof lay a rafter board so it rests on its edge on both the ledger and the beam parallel to the ledger. Using a block of wood as a ruler mark the ends for cutting. Then force the rafter s tip snugly against the house wall. I cut rafters out of 2x8s frame this pole barn lean to.

Before you start cutting you first need to determine how long your roof rafters need to be and the angles at which you ll cut the top and bottom of the rafter. More truss makers are switching to drop gables where the only notching is on the 2x6 outrigger itself. Measure as precisely as possible down to the 1 4 inch 0 64 cm 1 8 inch 0 32 cm or 1 16 inch 0 16 cm. We are changing our flat roofs to peaked ones.

I noticed that the lumber don t know whether to call them joists or rafters comes down from the peak and they had to notch it. If is wasn t for this joint a rafter or roofing joist would only balance on top of the wall plate making fixing difficult not to mention the fact that there wouldn t be any solid connection between the roof and the supporting walls below.