Roof Parts Glossary

A structure located behind the higher side of a chimney or similar projections from the roof to divert rainwater around it.

Roof parts glossary.

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. Sheathing is a layer used as the base of the roof. Dormer a vertical window built into the slope of a pitched roof. Part of a roof s frame a ridge board runs horizontally along the peak of a sloped roof.

Below are some commonly used terms that identify parts of a roof and types of roofing. Horizontal line at the top of the roof. The v cut angle along the junction of two slopes of a roof. Class a fire resistance.

A mineral surfaced material that is used by itself or as the top layer of multi layer rolled roof covering system. Essentially the spine of a conventional stick framed roof the ridge board is sandwiched between the meeting ends of the roof rafters. Water worn gravel or marble chips used for surfacing and or ballasting a roof system. Eaves the area just below the lower end of the roof includes the fascia soffit and guttering.

Hot roof is a completely sealed not vented attic the entire interior of which is often sprayed with closed cell urethane foam insulation. To fill a joint with mastic or asphalt cement to prevent leaks. Hip roof is a type of roof containing sloping planes on each side. Other parts of the roof are nailed to this later.

This layer covers the rafters and is beneath the shingles and membrane layers. Sheathings are panels that envelope the rafters. The effect on materials that are exposed to an environment for an interval of time. A line made on the roof by snapping a taut string or cord dusted with chalk used for alignment purposes.

Roofing glossary of terms a list of all common roofing terms and words with detailed definitions and explanations for each. The portion of the roof projecting out from the side walls of the house. See asphalt roof cement. 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.