Framing Roof Valley Rafters

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

Framing roof valley rafters.

Therefore the pitch of the valley rafter is 12 in 17. After you determine the rise span run line length and pitch the next step is to lay out the rafters or mark the cuts on a pattern rafter to create the roof. The roof rafters provide integral structural support to the roof. This article will discuss a gable roof without valleys or dormers because it s the most common and the easiest for a first time builder to tackle.

After installing the rafters we still had to extend the porch roof back over the shed roof creating a valley on either side. On the common rafters the plumb cut is marked with a framing square for a 12 in 12 pitch 45 and cut square i e no bevel. Blind valleys simplify framing. To keep the porch roof framing as simple as possible we installed a structural ridge supported by posts at each end with the common rafters landing on top of the ridge.

The total rise of hip and valley rafters is. Valley rafter a no math approach to valley plates whether you re tying in new gable dormers or adding a chimney cricket during roof framing giving the valley jacks a place to land is an easy task with these step by step instructions. Thus there are hip jack rafters and valley jack rafters. 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 first cut that i make on both the common rafters and the valley rafter is the plumb cut where the rafter will meet the ridge board.