Attic Framing Terms

Assembling framing one member at a time on the job site instead of raising prefabricating walls or trusses as a unit.

Attic framing terms.

A framing member that supports the cut ends of studs or joists usually over a window or door or at either end of a floor or ceiling opening. Here is a closer look at common roofing terms. However green building uses a single top plate and ensures that rafters and ceiling joists sit on the plate directly over the studs. When repairing or replacing a roof it pays to be familiar with these terms.

In the following section we ll cover some of the more common roof and rafter terms you ll need. Includes illustrations that show roofs have hip rafters ridge boards jack rafters and more. If you have trusses it will be next to impossible to reconfigure them to allow for clear space. Collar ties rafter ties tension beams structural ridge beams.

Roof features associated with basic roof framing terms are shown in figure 2 2. Back to alphabetical list hip roof. Ironically though it s the rafters that provide a better environment for an attic conversion because of the clear space. Boards or plywood installed over joists on which the finish floor is laid.

Buildings with combustible ceiling or roof construction shall have an attic access opening to attic areas that have a vertical height of 30 inches 762 mm or greater over an area of not less than 30 square feet 2 8 m 2 the vertical height shall be measured from the top of the ceiling framing members to the underside of the roof framing members. Roof framing terms are related to the parts of a triangle. This article describes and illustrates the different types of support that prevents roof sagging and wall bulging at buildings including definitions of collar ties rafter ties and structural ridge beams. Roof framing involves a lexicon all its own.

At the top of a wall panel you have a top plate and at the bottom you ll have a bottom plate. Studs are attached to plates and studs and plates combined form a wall panel. Some of these can support the roof and prevent ridge sagging and wall spreading. Trusses are considered a superior method of framing a roof because of the additional support.

Roof ceiling construction requirements are listed in california residential code chapter 8. On any wall panel or framing piece the beams that run horizontal at the very top and bottom of the frame are called plates. These requirements cover the design and construction of roof ceiling systems including roof framing roof drainage roof sheathing ceiling finishes roof ventilation and attic access. Top plate or plates in conventional western platform framing there are two top plates.

Sway bracing there are a few ways to sway brace the wall.