How To Cut Rafters For A Hip Roof

With the saw bevel angle set to 45 cutting hips and creepers at the plumb cut angle will produce correct side angles.

How to cut rafters for a hip roof.

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. I trace and cut the birdsmouths and rafter tails on both ends of the rafter stock all at one. The ridge cut also called the plumb cut at the top of the rafter the birdsmouth cut which itself comprises 2 different cuts where the rafter meets the building s wall and the tail cut at the base of the rafter. The key structural member is the hip rafter which spans from the building corner to the peak or the ridge.

Dab digital smart ear defender. Http amzn to 2sfscbz swanson speed square http amzn to 2svgnvt 16 x 24 framing square starrett http amzn to 2sflm5v milwaukee circular saw http amzn. The roof rafters provide integral structural support to the roof. Https amzn to 3239rvw adjustable quick square.

There are many variations on hip roofs and their construction but for the purpose. This system works whether you re building a small hip roof like this one or a monster roof with 40 foot long hips and valleys. The hip rafter plumb cut is a different angle to a common rafter plumb cut. Hip backing angle 15 4 for a good straight fascia add an extra inch or 2 to the tails of all your rafters total length.

Then i make the hip plumb cuts where one cut results in two jack rafters. Hip roof framing rafter cut angle template diagram if using a circular saw or compound miter saw set saw bevel angle to 45 to obtain creeper and hip side angles. This is covered in cutting common rafters mar 17. See saw miter and blade angle settings.

It s better to make a ply jig cut a plumb cut on an off cut of ply or timber around 500mm long and a birds mouth this can be used to quickly mark rafters once measurements have been applied or use a roofing or framing square. Also it has to be cut to form a point so to cut a hip raffter plumb cut you need to set the circular saw over so it will cut 45. When you cut the rafters you ll need to make 3 separate cuts. Before we explain hip rafters you need to understand how to lay out and cut common roof rafters.

Hip rafter plumb cut. Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter.