Roofing Terminology

Figuring out frequent roofing terminology will allow you as a house owner to make an knowledgeable choice about roofing supplies which might be good matches to your dwelling’s model and the area during which you reside. It can additionally enable you to perceive the contract together with your roofing skilled and the mission updates roofing company san diego.
Some key roofing phrases are listed under:

Asphalt: A waterproofing agent utilized to roofing supplies throughout manufacturing.

Asphalt plastic roofing cement: An asphalt-based sealant used to bond roofing supplies. Often known as flashing cement, roof tar, bull or mastic.

Again surfacing: Granular materials utilized to the again facet of shingles to maintain them from sticking throughout supply and storage.

Base flashing: That portion of the flashing connected to or resting on the deck to direct the circulation of water onto the roof.

Constructed-up roof: A number of layers of asphalt and ply sheets bonded collectively.

Butt edge: The underside fringe of the shingle tabs.

Caulk: To fill a joint to forestall leaks.

Closed valley: The valley flashing is roofed by shingles.

Coating: A layer of viscous asphalt utilized to the outer roof floor to guard the roof membrane.

Collar: Pre-formed flange positioned over a vent pipe to seal the roof across the vent pipe opening. Additionally referred to as a vent sleeve.

Hid nail methodology: Utility of roll roofing during which all nails are lined by a cemented, overlapping course.

Counter flashing: That portion of the flashing connected to a vertical floor above the airplane of the roof to forestall water from migrating behind the bottom flashing.

Course: Row of shingles that may run horizontally, diagonally or vertically.

Cricket: A peaked water diverter put in in the back of a chimney to forestall accumulation of snow and ice and to deflect water.

Deck: The highest floor of which a roof system is utilized, floor put in over the supporting framing members.

Double protection: Asphalt roofing whose lapped portion is no less than two inches wider than the uncovered portion, leading to two layers of roofing materials over the deck.

Downspout: A pipe for draining water from roof gutters to empty. Additionally referred to as a frontrunner.

Drip edge: L-shaped flashing used alongside the eaves and rakes to permit water run-off into the gutters and to drip away from underlying development.

Eave: The a part of the roof that overhangs or extends outward and isn’t immediately over the outside partitions or the buildings inside.

Uncovered nail methodology: Utility of roll roofing the place nails are pushed into the overlapping course of roofing. Nails are uncovered to the weather.

Fascia: A wooden trim board used to cover the minimize ends of the roof’s rafters and sheathing.

Felt: Fibrous materials used as an underlayment or sheathing paper, describes roll roofing supplies.

Flashing: Items of steel or roll roofing used to type water seal round vent pipes, chimneys, adjoining partitions, dormers and valleys.

Gable: The top of an exterior wall that involves a triangular level on the ridge of a sloping roof.

Granules: Ceramic-coated and fired crushed rock that’s utilized as the highest floor of asphalt roofing merchandise.

Gutter: The trough that channels water from the eaves to the downspouts. Often connected to the fascia.

Head lap: An overlapping of shingles or roofing felt at their higher edge.

Hip: The fold or vertical ridge fashioned by the intersection of two sloping roof planes. Runs from the ridge to the eaves.

Ice dam: Situation forming water back-up on the eave areas by the thawing and re-freezing of melted snow on the overhang. Can drive water underneath shingles, inflicting leaks.

Interlocking shingles: Particular person shingles that mechanically fasten to one another to supply wind resistance.

Laminated shingles: Strip shingles product of two separate items laminated collectively to create additional thickness. Additionally referred to as three-dimensional and architectural shingles.

Lap: Floor the place one shingle or roll overlaps with one other through the utility course of.

Mansard roof: A design with an almost vertical roof airplane linked to a roof airplane of much less slope at its peak. Comprises no gables.

Mineral stabilizers: Finely floor limestone, slate, traprock or different inert supplies added to asphalt coatings for sturdiness and elevated resistance to fireside and weathering.

Nesting: A technique of reroofing, putting in a second layer of latest asphalt shingles, during which the highest fringe of the brand new shingle is butted towards the underside fringe of the present shingle tab.

Pitch: The diploma of roof incline expressed because the ratio of the rise, in ft, to the span, in ft.

Low Slope – Roof pitches which might be lower than 30 levels.

Regular Slope – Roof pitches which might be between 30 and 45 levels.

Steep Slope – Roof pitches which might be greater than 45 levels.

Rafter: The supporting framing that makes up the roof construction; instantly beneath the deck; the roof sheathing is nailed to the rafters.

Rake: The inclined fringe of a sloped roof over a wall from the eave to the ridge. They are often shut or prolonged.

Ridge: The horizontal exterior angle fashioned by the intersection of two sloping sides of a roof on the highest level of the roof, hip or dormer.

Run: The horizontal distance between the eaves and some extent immediately underneath the ridge; or one half the span.

Selvage: That portion of roll roofing overlapped by the appliance of the roof masking to acquire double protection.

Sheathing: Exterior grade boards used as a roof deck materials.

Shed roof: A single roof airplane with no hips, ridges, valleys or gables, not linked to every other roofs.

Slope: The diploma of roof incline expressed because the ratio of the rise, in inches, to the run, in ft.

Clean-surfaced roofing: Roll roofing that’s lined with floor talc or mica as an alternative of granules (coated).

Soffit: The completed underside of the eaves that extends from the fascia to the siding and hides the underside of an overhang.

Soil stack: A vent pipe that penetrates the roof.

Span: The horizontal distance from eaves to eaves.

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