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.

Roof members terminology.

An asphalt based roof cement formulated to adhere overlapping plies or asphalt roll roofing. The edge of a roof which runs from eaves to ridge at a gable. A horizontal member that establishes the lower edge of a truss usually carrying combined tension and bending stresses. Eaves the area just below the lower end of the roof includes the fascia soffit and guttering.

Inspectapedia tolerates no conflicts of interest. They vary in size depending on their length and spacing. They do for the roof what the joists do for the floor and what the studs do for the wall. It is a type of resistant moulding that prevents water flowing near roof openings from infiltrating the roof.

The exposed end of a shingle. 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. As you can see in the illustration below roofs have hip rafters ridge boards jack rafters and more. The members making up the main body of the framework of all roofs are called rafters.

Don vandervort hometips. Collar ties rafter ties structural ridge beams. Here is a closer look at common roofing terms. A condition where both the top and bottom chords extend beyond a support structure with no bearing at the extended end.

The portion of the roof projecting out from the side walls of the house. Dormer a vertical window built into the slope of a pitched roof. 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. When working on a roof it pays to be familiar with these terms.

It is a waterproofing layer made of regular felt stacked above the solid. Flashing is found in valleys and at the bases of chimneys walls roof vents and plumbing vents. Common rafter valley rafter valley jack rafter hip rafter hip jack rafter cripple jack rafter dormer rafter. Made of fibreglass and asphalt shingles protect the roof from rain and lend a house character.

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. Post a question or comment about roof framing support construction specifications practices. 1 part of a pitched roof construction that receives the feet of the spars sp ars and ceiling joist ends. Below are some commonly used terms that identify parts of a roof and types of roofing.

3 part of a suspended timber floor construction that provides a level bearing and. 2 part of a flat roof structure that receives the ends of the flat roof joists. Rafters are inclined members spaced from 16 to 48 inches apart.