Attic Rafters Trusses

Roof truss basics roof trusses are engineered wood alternatives to hand framed rafters.

Attic rafters trusses.

Certain conditions must be met before an attic truss can be built. The structure should be sufficiently wide to allow for a loft and attic spaces the loft area must be on a living floor and have attic rooms on both sides separated by knee walls a flat ceiling in the loft area and a floor below steep enough roof pitch to provide appropriate ceiling height for the loft area. The lumber components are. Pre manufactured stock trusses are constructed with spruce pine fir spf or southern yellow pine syp lumber.

Just enter the dimensions of the roof rise and run to get started. The truss is a framework consisting of rafters posts and struts which supports your roof. In finished space insulation is placed between the rafter boards and drywall or other material is fastened to the face. Rafter boards are fastened to the ridge board at the peak and the top plate where they join the wall.

They are designed at a 4 12 pitch to be spaced 2 foot on center. Room in attic trusses are professionally designed with state of the art computer programs. A mono truss roof allows for more sunlight and visual space proper drainage and relatively cheaper. The boards creating the slope of the roof are wider than lumber used to build trusses 2x8s 2x10s and 2x12s are most common in rafters vs.

Examples of live loads are snow wind rain and temporary construction loads. As we will see below there are several different types of designs and this will impact the angles and designs of the overall truss. Compare click to add item 24 spreadweb residential roof truss 5 12 pitch 87 to the compare list add to list click to add item 24 spreadweb residential roof truss 5 12 pitch 87 to your list sku 1889754. It s often used for sheds garages or extension of an existing roof.

The dimensions of your structure will determine the angles formed by the truss s top and bottom beams or chords. Types of mono trusses 1. Live loads are not always present. Room size will vary depending on the overall size and slope also referred to as pitch of the trusses.

Residential room in attic trusses are an inexpensive way to add extra living or storage space to your home or garage while also increasing the value of your property. A mono truss is a one sloped truss that forms a right angle triangle. These trusses the meet building code criteria as specified by structural building components of america sbca and the truss plate institute tpi.