Roof Members Terminology

When working on a roof it pays to be familiar with these terms.

Roof members terminology.

Slight vertical cut on the outside edge of truss bottom chord to make sure uniform nominal span typically 1 4 inch cantilever. A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load. Collar ties rafter ties structural ridge beams. Post a question or comment about roof framing support construction specifications practices.

3 part of a suspended timber floor construction that provides a level bearing and. The members making up the main body of the framework of all roofs are called rafters. Here is a closer look at common roofing terms. A horizontal timber or metal resting at the peak of the roof the rafters and trusses are connected to the ridge board for a cohesive framework.

Eaves the area just below the lower end of the roof includes the fascia soffit and guttering. Don vandervort hometips. An asphalt based roof cement formulated to adhere overlapping plies or asphalt roll roofing. Fascia the vertical board secured to the ends of the rafters under the lower end of the roof to which the guttering is normally fixed traditionally timber nowadays usually upvc.

That part of a roofing waterproofing or flashing component that overlaps or covers any portion of the same or. Below are some commonly used terms that identify parts of a roof and types of roofing. Flashing is found in valleys and at the bases of chimneys walls roof vents and plumbing vents. They do for the roof what the joists do for the floor and what the studs do for the wall.

Made of fibreglass and asphalt shingles protect the roof from rain and lend a house character. 2 part of a flat roof structure that receives the ends of the flat roof joists. Common rafter valley rafter valley jack rafter hip rafter hip jack rafter cripple jack rafter dormer rafter. A condition where both the top and bottom chords extend beyond a support structure with no bearing at the extended end.

It is a type of resistant moulding that prevents water flowing near roof openings from infiltrating the roof. Dormer a vertical window built into the slope of a pitched roof. The edge of a roof which runs from eaves to ridge at a gable. Occurs where overlapping materials are seamed sealed or.

Rafters are inclined members spaced from 16 to 48 inches apart. The portion of the roof projecting out from the side walls of the house. As you can see in the illustration below roofs have hip rafters ridge boards jack rafters and more. The exposed end of a shingle.

It is a waterproofing layer made of regular felt stacked above the solid. Inspectapedia tolerates no conflicts of interest. They vary in size depending on their length and spacing.