Flat Roof With Exposed Rafters

The 1 grade.

Flat roof with exposed rafters.

The rafters in a flat roof serve as ceiling joists for the space below. This means that each rafter is built on the job site using dimensional lumber. If your project had a rafter length of 8 or less a safe and strong method is to use 2x8 framed 16 on center. Slope a roof s slope is the number of inches it rises for every 12 inches of horizontal run a roof with a 4 in 12 slope rises 4 inches for every 12 inches of horizontal run.

Of course you don t need to live in a modern house to deal with a flat roof. Now cathedral style roofs with exposed timbers can be incorporated into a home or building design while being insulated to provide a feeling of spaciousness in living areas something that is particularly relevant as homes footprints get smaller. When restoring an old home it has become very common to expose wood beams adding to the charming history of the home. Building with them is known as stick framing.

Rafters are the traditional means of framing a roof. The lengths and sizes of joists vary depending on the species and quality of the lumber used. Just as there are many types of roofs with many roof parts there are many different types of roof trusses this extensive article explains through a series of custom truss diagrams the different truss configurations you can use for various roofs. Exposed ceiling trusses adds a stylish visual aesthetic to any living space in your home making it feel warm and cozy not to mention it is very in trend.

They are nailed securely to exterior wall plates and to each other. A measurement of roof area that equals 100 square feet an area 10 feet by 10 feet. The same roof has a 4 12 or 1 3 pitch. The size of rafters for a flat roof depends on the horizontal span of the building the type and grade of timber used and the load on the roof.

What is a roof rafter. Jan 18 2018 explore maxwell link s board exposed rafters on pinterest. Every piece is measured cut and fastened together to form the rafter. For example you can span a 1 grade no knots southern yellow pine a greater distance than a 2 grade with knots southern yellow pine.

Wood beam calculator american wood council website rafter and joist span faq. While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses. Yet for historic modern style buildings like this old house s cambridge tv project flat roofs are at the core of the architecture meant to reflect the broad horizontal lines of the natural landscape.