Free Span Roof Trusses

The lumber components are precision cut and assembled together with galvanized steel truss plates in a factory controlled environment.

Free span roof trusses.

For example a slope of 6 12 means for every 12 inches of horizontal distance the slope of the roof will rise 6 inches vertically. Pitch slope the pitch or slope is the incline of the roof expressed as a fraction describing the rise over the run. The same thing is true for the bridge of the truss. Alpine truss designs are engineered to meet specific span configuration and load conditions.

Residential trusses save time and materials compared to conventional hand framing. Dec 15 2013 free truss plans. Truss capacity is. The more complex the truss framework is the greater quantity of these joints will be required.

The rise will be the elevation change over the 12 inches. 24 28 30 32 34 36 38 40 42 44 48 50 60 truss. These steel joints are needed to support the overall truss. Total load psf duration factor live load psf roof type 55 1 15 40 snow shingle 55 1 15 30 snow tile 47 30 snow 40 20 snow 1 25 20.

The shapes and spans shown here represent only a fraction of the millions of designs produced by alpine engineers. Finally the truss calculator will compute the best dimensional method to connect the pieces of the truss with steel joints and a bridge. Roof truss design 1 24 span 2 web with plywood gussets figure 1 figure 1 roof truss 24 span 2 web with plywood gussets detailed information for a 2 web roof truss with a 24 span with plywood gussets. Trusses are professionally designed with state of the art computer programs.