M7 Roof Framing Trade Terms 20

Horizontal roof support members parallel to the plate and installed between the plate and the ridgeboard on the underside of the rafter. _______ must not be less than the size of the rafters supported.

• Dormer

• Gable

• Purlins

• Tiedown

Framework extending from the roof surface that provides additional light and ventilation to an attic space.

• Dormer

• Gable

• Purlins

• Tiedown

Metal anchoring device used to fasten rafters or trusses to a wall to resist wind uplift loads.

• Bottom Chord

• Gable

• Lookout Blocks

• Tiedown

Cord or rope attached to a structural member or other large unit that is being positioned by a crane, to assist in guiding the member into proper position.

• Bottom Chord

• Gable

• Lookout Blocks

• Tag Line

The lower member of a truss.

• Bottom Chord

• Gable

• Lookout Blocks

• Spreader Bar

A rigging device used when lifting large members with a crane.

• Bottom Chord

• Gable

• Lookout Blocks

• Spreader Bar

Commonly referred to as a rat run. Often a 1 × 4 nailed to the ceiling joists at the center of the span to prevent twisting and to maintain alignment of center-to-center dimensions.

• Bottom Chord

• Gable

• Lookout Blocks

• Ribband

The triangular wall enclosed by the sloping ends of a ridged roof.

• Bottom Chord

• Gable

• Lookout Blocks

• Ribband

Framing members that attach to the side of the gable endwall to create an overhang. Also called soffit ladder framing.

• Bottom Chord

• Gable

• Lookout Blocks

• Ribband

Framing method in which framing members are installed one at a time (rather than as a prefabricated assembly).

• Slope

• Stick-Built Framing

• Strongback

• Underlayment