Roof Members Terminology

1 part of a pitched roof construction that receives the feet of the spars sp ars and ceiling joist ends.

Roof members terminology.

When working on a roof it pays to be familiar with these terms. Occurs where overlapping materials are seamed sealed or. The members making up the main body of the framework of all roofs are called rafters. Flashing is found in valleys and at the bases of chimneys walls roof vents and plumbing vents.

Post a question or comment about roof framing support construction specifications practices. They do for the roof what the joists do for the floor and what the studs do for the wall. The edge of a roof which runs from eaves to ridge at a gable. As you can see in the illustration below roofs have hip rafters ridge boards jack rafters and more.

Dormer a vertical window built into the slope of a pitched roof. Here is a closer look at common roofing terms. They vary in size depending on their length and spacing. Don vandervort hometips.

That part of a roofing waterproofing or flashing component that overlaps or covers any portion of the same or. Slight vertical cut on the outside edge of truss bottom chord to make sure uniform nominal span typically 1 4 inch cantilever. Below are some commonly used terms that identify parts of a roof and types of roofing. An asphalt based roof cement formulated to adhere overlapping plies or asphalt roll roofing.

Eaves the area just below the lower end of the roof includes the fascia soffit and guttering. 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. Inspectapedia tolerates no conflicts of interest. 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.

The exposed end of a shingle. A low slope or flat seeming roof covered with alternating layers of roofing felt and hot mapped asphalt and topped off with a layer of gravel. Common rafter valley rafter valley jack rafter hip rafter hip jack rafter cripple jack rafter dormer rafter. 2 part of a flat roof structure that receives the ends of the flat roof joists.

The portion of the roof projecting out from the side walls of the house. Collar ties rafter ties structural ridge beams. 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.

A horizontal member that establishes the lower edge of a truss usually carrying combined tension and bending stresses. A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load. Rafters are inclined members spaced from 16 to 48 inches apart.