Notching Roof Rafters

Since the webbing in the truss is vertical it is considered by building inspectors to be ok.

Notching roof rafters.

Using a block of wood as a ruler mark the ends for cutting. If you ve wondered how to frame a lean to roof off a pole barn this video will show you how i did it. Notching roof rafters to headers. Birdsmouth joints cut into roofing rafters and mounted in place on top of the wall plate.

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. I cut rafters out of 2x8s frame this pole barn lean to. A ridge beam runs the length of the shed roof connecting every pair of rafters. Each beam is notched at the bottom called a birdsmouth so that it rests flat on top of each wall.

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. At the top where the rafters meet they are either angled to meet at a point or attached to a horizontal ridge beam. Then force the rafter s tip snugly against the house wall. More truss makers are switching to drop gables where the only notching is on the 2x6 outrigger itself.

Up here notching the gable end truss is common it is done to support the lookouts and fascia on the end of the gable. This trick worked for me. We are changing our flat roofs to peaked ones. Use a tape measure to measure the entire width of your building.

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. The new roof will start at the back of the house go up to a peak and then down to rest on the entrance header to the kitchen.