Roof Members Terminology

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Roof members terminology. A horizontal member that establishes the lower edge of a truss usually carrying combined tension and bending stresses. The exposed end of a shingle. Below are some commonly used terms that identify parts of a roof and types of roofing. Occurs where overlapping materials are seamed sealed or.

2 part of a flat roof structure that receives the ends of the flat roof joists. A condition where both the top and bottom chords extend beyond a support structure with no bearing at the extended end. Flashing is found in valleys and at the bases of chimneys walls roof vents and plumbing vents. 1 part of a pitched roof construction that receives the feet of the spars sp ars and ceiling joist ends.

The edge of a roof which runs from eaves to ridge at a gable. Rafters are inclined members spaced from 16 to 48 inches apart. That part of a roofing waterproofing or flashing component that overlaps or covers any portion of the same or. The members making up the main body of the framework of all roofs are called rafters.

Common rafter valley rafter valley jack rafter hip rafter hip jack rafter cripple jack rafter dormer rafter. 3 part of a suspended timber floor construction that provides a level bearing and. A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load. Here is a closer look at common roofing terms.

Made of fibreglass and asphalt shingles protect the roof from rain and lend a house character. Post a question or comment about roof framing support construction specifications practices. When working on a roof it pays to be familiar with these terms. Dormer a vertical window built into the slope of a pitched roof.

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. 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. Inspectapedia tolerates no conflicts of interest. Collar ties rafter ties structural ridge beams.

They vary in size depending on their length and spacing. Eaves the area just below the lower end of the roof includes the fascia soffit and guttering. As you can see in the illustration below roofs have hip rafters ridge boards jack rafters and more. It is a waterproofing layer made of regular felt stacked above the solid.

The portion of the roof projecting out from the side walls of the house. They do for the roof what the joists do for the floor and what the studs do for the wall. Slight vertical cut on the outside edge of truss bottom chord to make sure uniform nominal span typically 1 4 inch cantilever.