Pitched Roof Without Trusses

A pitched roof construction is the classic old school way of roof construction.

Pitched roof without trusses.

A common house roof pitch is 5 by 12 which means it slopes up from the wall at 5 inches per foot. Premade roofing trusses will be easier and take less time than installing a stick built roof. What is a pitched roof. Girder trusses are designed to carry additional loads other than standard roof loads.

Pitch measurement method 1. With rafters collars ties struts ridges underpurlins ceiling joists hanging beams combination hanging and strutting beams pitching. Pitched roof types explained cut and truss roofs. Slope the slope of a roof is represented as x 12 where x is the number of inches in rise for every 12 inches of run this is very useful information for many purposes especially for roof framing the slope sometimes called pitch is calibrated on speed squares.

A truss with the same pitch and heel on both sides and a peak at the center is called a common truss. Angle the angle of a roof is the same as the roof s slope except instead of being. Premade trusses will form the skeleton of your new roof above your old roof. The trusses are an engineered timber web that when constructed form the complete roof system.

A truss roof is made up of a number of factory made frames or trusses each of which which combine the joist rafter and struts. 8 inches and you have an 8 in 12 pitch. These loads can be other trusses that attach by sitting on top of the girder or they may attach to the side of the girder using truss hangers. If this distance measures 4 inches you have a 4 in 12 pitch.

On a ladder beside the roof place the level a foot or so up the roof hold it level and measure from the 12 inch mark on the level s bottom straight down to the roof. The illustration to the right shows a typical truss for a simple duo ridge roof. Roof pitch calculator results explained.