Gable Roof Framing Cathedral Ceiling

Without joists the walls can bow outward and the roof ridge line may sag.

Gable roof framing cathedral ceiling.

You can possibly remove them altogether of you include posts in the gable walls to support a structural ridge. Each truss is composed of two opposing rafters and a ceiling joist. If you are framing a cathedral ceiling there are a couple ways to deal with the need for rafter ties. An engineer must determine rafter size placement and pitch based on span and.

Stick framing a roof with rafters is the old fashioned and still most common method of obtaining a vaulted ceiling. Collar ties rafter ties tension beams structural ridge beams. Finally when a cathedral or a vaulted ceiling or any gable roof is framed without either an engineered structural ridge ceiling joists or rafter ties or an engineered solution some amount of ridge sag and wall kick out is guaranteed. The simple 6 12 gable roof is composed of actual 2x6 rafters 24 oc sheathed with 1 2 plywood and covered with asphalt shingles.

Some of these can support the roof and prevent ridge sagging and wall spreading. Studs shall be continuous from a support at the sole plate to a support at. Roof structure definitions support choices for sloped roofs cantilevered roofs cathedral ceiling roofs. These horizontal framing members tie a building s outer walls together and resist the outward force exerted by the roof rafters in conventional framing.

A plain flat ceiling gable is actually a procession of light trusses usually spaced 16 in. If it s your first case and if you feel uncomfortable call for the engineer. Old cottage cathedral ceiling i have a 50 year old seasonal cottage in a northern climate. Contributing editor scott mcbride replies.

To avoid these problems in a structure with a cathedral ceiling it helps to understand how a typical roof frame works. The gable truss should be the same scissor profile as the common scissor. 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.