Pitched Roof Framing

Gable a gable roof has a ridge at the center and slopes in two directions.

Pitched roof framing.

A framing square is traditionally used for laying out the roof and determining pitch. To frame a roof start by choosing a roof style like a frame or gabled. 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. Fix stair gauges on the framing square to mark the pitch.

Wondering how to build the structure of your roof. This video covers one of the most exciting parts of roof framing installing rafters. 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. Guide to building and framing a saltbox style roof.

Mirrored pairs of rafters meet at a ridge and are connected across the base by a ceiling joist. Next use these calculations to determine how many rafters you ll need for your roof and cut them to size. 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.

The pitch of the roof refers to the angle or steepness of the roofing frame. This process uses pre built wood forms to build the roof frame. From one end of the rafter material using a speed square or framing square mark an x in 12 angle on the rafter and cut it measure down y height from the long point of the rafter cut and make a mark. The inherent strength and integrity of the triangular form makes the roof a sound structure.

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. One thing you never want to do when designing your roof is build one with a pitch lower than 3 12. Common types of roofs and basic framing terms. 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. 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. We will go over raft. Rafter layout 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.

An example of each is shown in figure 2 1. 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.