Roof Members Terminology

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Roof members terminology.

As you can see in the illustration below roofs have hip rafters ridge boards jack rafters and more. When working on a roof it pays to be familiar with these 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. Rafters are inclined members spaced from 16 to 48 inches apart.

Don vandervort hometips. Dormer a vertical window built into the slope of a pitched roof. An asphalt based roof cement formulated to adhere overlapping plies or asphalt roll roofing. A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load.

Occurs where overlapping materials are seamed sealed or. They vary in size depending on their length and spacing. Collar ties rafter ties structural ridge beams. Slight vertical cut on the outside edge of truss bottom chord to make sure uniform nominal span typically 1 4 inch cantilever.

1 part of a pitched roof construction that receives the feet of the spars sp ars and ceiling joist ends. Flashing is found in valleys and at the bases of chimneys walls roof vents and plumbing vents. 2 part of a flat roof structure that receives the ends of the flat roof joists. It is a type of resistant moulding that prevents water flowing near roof openings from infiltrating the roof.

That part of a roofing waterproofing or flashing component that overlaps or covers any portion of the same or. The exposed end of a shingle. They do for the roof what the joists do for the floor and what the studs do for the wall. A condition where both the top and bottom chords extend beyond a support structure with no bearing at the extended end.

Eaves the area just below the lower end of the roof includes the fascia soffit and guttering. It is a waterproofing layer made of regular felt stacked above the solid. Inspectapedia tolerates no conflicts of interest. Here is a closer look at common roofing terms.

The members making up the main body of the framework of all roofs are called rafters. 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. A horizontal member that establishes the lower edge of a truss usually carrying combined tension and bending stresses. The edge of a roof which runs from eaves to ridge at a gable.

Made of fibreglass and asphalt shingles protect the roof from rain and lend a house character. The portion of the roof projecting out from the side walls of the house. 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.