Gable Roof Framing Cathedral Ceiling

Roof structure definitions support choices for sloped roofs cantilevered roofs cathedral ceiling roofs.

Gable roof framing cathedral ceiling.

The gable truss should be the same scissor profile as the common scissor. These horizontal framing members tie a building s outer walls together and resist the outward force exerted by the roof rafters in conventional framing. 406mm o c or support more than a roof and ceiling or exceed 8 feet 2438 mm in height for exterior walls and load bearing walls or 10 feet 3048 mm for interior non load bearing walls. Stick framing a roof with rafters is the old fashioned and still most common method of obtaining a vaulted ceiling.

Each truss is composed of two opposing rafters and a ceiling joist. Studs shall be continuous from a support at the sole plate to a support at. The simple 6 12 gable roof is composed of actual 2x6 rafters 24 oc sheathed with 1 2 plywood and covered with asphalt shingles. Contributing editor scott mcbride replies.

Without joists the walls can bow outward and the roof ridge line may sag. There is no insulation in the ceiling and i suspect little to no effective insulation in the 2x4 walls. The trick in framing a vaulted ceiling is figuring out what to do with the ceiling joists. If you are framing a cathedral ceiling there are a couple ways to deal with the need for rafter ties.

Some of these can support the roof and prevent ridge sagging and wall spreading. Old cottage cathedral ceiling i have a 50 year old seasonal cottage in a northern climate. An engineer must determine rafter size placement and pitch based on span and. To avoid these problems in a structure with a cathedral ceiling it helps to understand how a typical roof frame works.

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. You can possibly remove them altogether of you include posts in the gable walls to support a structural ridge. A plain flat ceiling gable is actually a procession of light trusses usually spaced 16 in.