Most Efficient Roof Truss Design Science

Bowstring pitched and flat.

Most efficient roof truss design science.

Flat the most economical flat truss for a roof is provided when the depth of the truss in inches is approximately equal to 7 of the span in inches. We ll now enlighten you on a roof s pitch the 4 very basic shapes and some of the many details that go into roof design. Understanding roof pitch is both fairly basic and a little complex. 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.

From my experience the easiest and most efficient will be the warren truss but a variation of it so that it is actually triangular in cross section not exactly like you see in real bridges where the truss sides are actually vertical and requir. In addition side and end wall height and type roof shape and bracing requirements must be considered. The raised heel roof truss reduces condensation problems since the truss creates a vapor barrier and is commonly seen in humid climates where mold is a common issue. The basic explanation is that most roofs have a slope and the degree of steepness associated with the slope is called pitch.

Most economical when the difference in slope between the top and bottom chords is at least 3 12 or the bottom chord pitch is no more than half the top chord pitch. Unconditioned and vented attics or upper rooms as opposed to insulating a roof. Let s dig in standard gable end truss. A standard gable truss sits on the end wall of a gable style roof.

Raised heel roof truss. Remember the design of your trusses directly affects the price. This method allows for greater energy efficiency. All truss designs are optimized to provide the most economical configuration for the specific application.

Some common trusses are named according to their web configuration such as the king post fan fink or howe truss. If you re looking for a complete guide for roof trusses then you ve come to the right place. Switching between a common truss and scissor truss could adjust the price by 15 30. It s crucial to know about truss design and how it influences price.

Selection of roof trusses architectural style types of roofing material methods of support of column framing and relative economy are the principal factors influencing a choice among the three basic types of trusses. It is most often used for roof construction. The chord size and web configuration are determined by span load and spacing. For the latest and greatest in design materials and considerations but this is not always the most cost effective route to take.

While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses.