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FM003
Roof Framing Trade Terms
Term | Definition |
---|---|
Bottom Chord | The lower member of a truss |
Gable | The triangular wall enclosed by sloping ends of a ridged roof |
Hip Roof | A roof with four sides or slopes extending toward the center |
Ribband | A 1x4 fastened to the truss to prevent twisting and bowing |
Strongback | An L shaped arrangement of lumber used to support ceiling joists |
Stick Built Framing | Framing method where members are installed one at a time |
Dormer | Provide additional light and ventilation for the attic |
Unit Rise | The amount a rafter will rise per foot of runPurlin |
Purlin | A horizontal support parallel to the plate |
Lookout | A structural member used to frame an overhang |
Open Web Steel Joist | Steel joist designed to hold roof loads |
Spreader Bar | Rigging device used to lift long loads |
Tag Line | Rope attached to a load to control its sitting |
Tie Down | Metal anchoring system used to fasten framing members to one another |
Bundle | A package containing a certain number of shingles or shakes |
Pitch | Rise and Run of a roof rafter |
Roof Sheathing | Plywood |
Slope | Rise and Run of a roof surface |
Underlayment | Felt Paper |
Asphalt Roofing Cement | Adhesive between shingles |
Saddle | Diverts water from structures such as chimneys |
Square | 100 square feet of shingles |
Valley | The internal part of the angle formed by the meeting od two roofs |
Exposure | the distance between the exposed edges of the shingle |
Ridge | Top of the roof |
Scrim | A loosely woven fabric |
Selvage | The section of a section of shingles that is not covered by aggregate |
Valley Flashing | Water proof protection at a roofs intersection |
Base Flashing | Protective sealing places around any areas exposed to leaks |
Cap Flashing | Sealant that overlaps the base |
Side Lap | adjacent shingles that overlap |
Vent Stack Flashing | Seal Vents the protrude through the roof |
Wall Flashing | Sealant the protects where the roof meets exterior walls |