We are changing our flat roofs to peaked ones.
Notching roof rafters.
Notching roof rafters to headers.
Using a block of wood as a ruler mark the ends for cutting.
Then force the rafter s tip snugly against the house wall.
This trick worked for me.
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.
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.
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.
If you ve wondered how to frame a lean to roof off a pole barn this video will show you how i did it.
A ridge beam runs the length of the shed roof connecting every pair of rafters.
Birdsmouth joints cut into roofing rafters and mounted in place on top of the wall plate.
Up here notching the gable end truss is common it is done to support the lookouts and fascia on the end of the gable.
More truss makers are switching to drop gables where the only notching is on the 2x6 outrigger itself.
At the top where the rafters meet they are either angled to meet at a point or attached to a horizontal ridge beam.
Each beam is notched at the bottom called a birdsmouth so that it rests flat on top of each wall.
Use a tape measure to measure the entire width of your building.
I cut rafters out of 2x8s frame this pole barn lean to.
Since the webbing in the truss is vertical it is considered by building inspectors to be ok.
Please consult a professional before making any cuts i am not a professional framer or roofer nor do i claim to be.