Electronic Scanners - an efficient way to reduce labor costs - optimal solution used to reliable anchor any racking system. 
 

Roof trusses are pre-fabricated, triangulated wood structures which are built in a factory and carefully designed to carry the load of a home’s roof to the outside walls. The flexibility in the roof design and complexity that roof trusses enable have also made them increasingly popular. With today’s home styles, more complex roof designs, angles, cross gables and other features have added cost, which can be at least partially offset by using pre-manufactured roof trusses rather than building a roof frame on site. That make them very popular.

In case of a house with roof trusses we have to account for less usable space in the attic area.

When we deal with roof based on roof trusses here are some of the terms and specifications we have to follow to make sure our installation will be conducted in a proper way.

Truss Span – specifies how long the bottom chord needs to be.

Overhang Length – specifies the horizontal distance between the end of the bottom chord and the bottom edge of the top chord.

Number of Trusses  – specifies how many trusses are required. The uniform spacing of roof trusses (usually either 24 inches or 48 inches on centre) makes this relatively easy to calculate.

Design Load – specifies both the live and dead loads of the top and bottom chords, as well as wind and any other loads to which the trusses will be subjected.

End Cut – specifies the plumb or square cut and any custom specifications

Heel Height – specifies the vertical distance between the bottom of the bottom chord and the top of the top chord.

Roof Slope – specifies the vertical rise in inches per each 12 inch horizontal run.

Bearing Width – specifies the requirements for the truss bearing.

This specifications are to be found in the roofer documentation and they become useful in situations we have to install in an area with high winds, big loads of snow or just for the case our solar system is extensively large and needs a very solid anchoring frame work.