Roof Members Terminology

Common rafter valley rafter valley jack rafter hip rafter hip jack rafter cripple jack rafter dormer rafter.

Roof members terminology.

It is a type of resistant moulding that prevents water flowing near roof openings from infiltrating the roof. A condition where both the top and bottom chords extend beyond a support structure with no bearing at the extended end. The exposed end of a shingle. Here is a closer look at common roofing terms.

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. Occurs where overlapping materials are seamed sealed or. Inspectapedia tolerates no conflicts of interest. Eaves the area just below the lower end of the roof includes the fascia soffit and guttering.

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. 2 part of a flat roof structure that receives the ends of the flat roof joists. Flashing is found in valleys and at the bases of chimneys walls roof vents and plumbing vents.

Made of fibreglass and asphalt shingles protect the roof from rain and lend a house character. 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. Don vandervort hometips.

Slight vertical cut on the outside edge of truss bottom chord to make sure uniform nominal span typically 1 4 inch cantilever. When working on a roof it pays to be familiar with these terms. 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. 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. They do for the roof what the joists do for the floor and what the studs do for the wall. 1 part of a pitched roof construction that receives the feet of the spars sp ars and ceiling joist ends. Rafters are inclined members spaced from 16 to 48 inches apart.

They vary in size depending on their length and spacing. Collar ties rafter ties structural ridge beams. It is a waterproofing layer made of regular felt stacked above the solid. Dormer a vertical window built into the slope of a pitched 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. Below are some commonly used terms that identify parts of a roof and types of roofing.