Roof Framing Valley Rafter

You can build a valley rafter very simply.

Roof framing valley rafter.

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. 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. Thus there are hip jack rafters and valley jack rafters. Therefore the pitch of the valley rafter is 12 in 17.

A valley rafter is built similar to other rafters but it runs from a wall plate to the ridge along the valley of a roof. Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter. 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. The roof rafters provide integral structural support to the roof.

A jack rafter is a shortened com mon rafter that may be framed to a hip rafter a valley rafter or both. The total rise of hip and valley rafters is. Start by cutting the angles of the rafter s tail ends as well as the vertical cuts that are needed at the rafter tails. 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.