Vaulted Roof Framing

In conventional gable roof framing the slope of the roof is formed by rafters that run diagonally downward from the peak of the roof to the tops of the exterior walls of the building.

Vaulted roof framing.

A plain flat ceiling gable is actually a procession of light trusses usually spaced 16 in. Contributing editor scott mcbride replies. Builders sometimes also prefer this construction method when they want to provide a large attic space or high vaulted ceilings often called cathedral ceilings. The trick in framing a vaulted ceiling is figuring out what to do with the ceiling joists.

However constructing a stick framed roof is not always easy. Rafters used to frame a vaulted roof are typically larger than rafters used to frame a roof that relies on ceiling joists for support. For example in texas where stick framing is common there are entire crews specializing only in framing roofs. The first step is the positioning of a substantial ridge beam.

This also allows you to save on lumber by using 2. These horizontal framing members tie a building s outer walls together and resist the outward force exerted by the roof rafters in conventional framing. To avoid these problems in a structure with a cathedral ceiling it helps to understand how a typical roof frame works. A dramatic cathedral ceiling makes a strong statement in a home s interior but make sure to follow the best practices to eliminate mold and wood rot while also saving money on lumber and materials.

If it s your first case and if you feel uncomfortable call for the engineer. Each truss is composed of two opposing rafters and a ceiling joist. For example spray foam insulation helps create an air tight seal that eliminates the need for ridge and soffit venting.