Pitched Roof Framing

Mirrored pairs of rafters meet at a ridge and are connected across the base by a ceiling joist.

Pitched roof framing.

An example of each is shown in figure 2 1. This means that for every horizontal run of 12 you need at least 3 of rise. Three important considerations for building a shed roof roof pitch. One thing you never want to do when designing your roof is build one with a pitch lower than 3 12.

Roof framing rafter layout. No matter which kind of roof framing is used they both contain one element that you ll need to be familiar with and that s the pitch of the roof. Wondering how to build the structure of your roof. Visit the roof framing page for more information on cutting roof rafters and visit the roof pitch calculator for determining rafter lengths based on rise and run.

A framing square is traditionally used for laying out the roof and determining pitch. Gable a gable roof has a ridge at the center and slopes in two directions. Next use these calculations to determine how many rafters you ll need for your roof and cut them to size. It is the form most commonly used by.

Types of roofs the most commonly used types of pitched roof construction are the gable the hip the intersecting and the shed or lean to. So if the pitch of your roof is 7 12 place one stair gauge on the vertical part of the framing square the tongue at the 7 inches 18 cm mark and place one stair gauge on the horizontal part of the framing square the body at the 12 inches 30 cm mark. To frame a roof start by choosing a roof style like a frame or gabled. This will the first point of the rafter measurement line using the results of your rafter length calculation measure from this point along the rafter measurement.

We will go over raft. Fix stair gauges on the framing square to mark the pitch. Rafter span tables use these tables to determine lengths sizes and spacing of rafters based on a variety of factors such as species load grade spacing and pitch. This video covers one of the most exciting parts of roof framing installing rafters.

In profile the framing of a conventional pitched roof forms a triangle. Guide to building and framing a saltbox style roof. Common types of roofs and basic framing terms. This process uses pre built wood forms to build the roof frame.

Then gather your measurements by calculating the run rise and length of each rafter segment in feet and the pitch of your roof in inches. The inherent strength and integrity of the triangular form makes the roof a sound structure.