Roof Parts Glossary

The portion of the roof projecting out from the side walls of the house.

Roof parts glossary.

A line made on the roof by snapping a taut string or cord dusted with chalk used for alignment purposes. Water worn gravel or marble chips used for surfacing and or ballasting a roof system. Other components such as metal panels or shingles are attached to the sheathing later. 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.

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. Part of a roof s frame a ridge board runs horizontally along the peak of a sloped roof. A structure located behind the higher side of a chimney or similar projections from the roof to divert rainwater around it. Sheathings are panels that envelope the rafters.

A mineral surfaced material that is used by itself or as the top layer of multi layer rolled roof covering system. To fill a joint with mastic or asphalt cement to prevent leaks. The effect on materials that are exposed to an environment for an interval of time. Other parts of the roof are nailed to this later.

Dormer a vertical window built into the slope of a pitched roof. Roofing glossary of terms a list of all common roofing terms and words with detailed definitions and explanations for each. Hot roof is a completely sealed not vented attic the entire interior of which is often sprayed with closed cell urethane foam insulation. Hip roof is a type of roof containing sloping planes on each side.

The v cut angle along the junction of two slopes of a roof. The ridge is the peak where two sloped roof sections meet. Essentially the spine of a conventional stick framed roof the ridge board is sandwiched between the meeting ends of the roof rafters. Sheathing is a layer used as the base of the roof.

Eaves the area just below the lower end of the roof includes the fascia soffit and guttering. Class a fire resistance. This can also be a conditioned space. This layer covers the rafters and is beneath the shingles and membrane layers.