Roofing Terminology

Knowing common roof covering terminology will assist you as a property owner to make an knowledgeable decision about roof covering materials which are very good matches to your home's living room style along with the location in which you live. It may also help a person understand the contract with your roofing qualified and the job updates.
Some important roofing terms will be listed below:

Concrete: A waterproofing agent applied to roofing supplies during manufacturing.

Asphalt plastic roofing cement: An asphalt-based sealant utilized to bond roofer materials. Also identified as flashing concrete, roof tar, bull or mastic.

Again surfacing: Granular substance applied to typically the back side of shingles to help keep them from sticking during delivery and safe-keeping.

Base flashing: That portion of the flashing attached to be able to or resting in the deck to be able to direct the stream of water upon the roof.

Built-up roof: Multiple layers of asphalt in addition to ply sheets fused together.

Butt border: The bottom advantage with the shingle navigation bars.

Caulk: To fill a joint to be able to prevent leaks.

Sealed valley: The pit flashing is protected by shingles.

Coating: A layer involving viscous asphalt used on the outer roof structure surface to guard the roof membrane layer.

Collar: Pre-formed flange placed over a new vent pipe to seal the roof structure around the in-take pipe opening. Also referred to as a vent sleeve.

Concealed nail method: Application of move roofing in which often all nails are usually covered by the cemented, overlapping course.

Counter flashing: That will portion of the flashing attached in order to a vertical surface above the airplane of the roofing to stop water by migrating behind the base flashing.

Study course: Row of shingles that can operate horizontally, diagonally or perhaps vertically.

Cricket: The peaked water diverter installed at the particular back of some sort of chimney to prevent accumulation of environments and ice also to deflect water.

Deck: The top surface which a roofing product is applied, surface area installed over the particular supporting framing associates.

Double coverage: Asphalt roofing whose lapped portion reaches minimum two inches broader than the revealed portion, resulting in two layers involving roofing material above the deck.

Downspout: A pipe for draining water coming from roof gutters in order to drain. Also referred to as a leader.

Drip advantage: L-shaped flashing applied along the eaves in addition to rakes to allow water run-off in to the gutters and drip clear associated with underlying construction.

Click for more info : Fault the roof top that overhangs or perhaps extends outward and is not directly over the exterior wall space or perhaps the buildings rooms.

Exposed nail technique: Using roll roof where nails are usually driven into the particular overlapping course of roof. Nails experience typically the elements.

Fascia: A new wood trim table used to conceal the cut comes to an end of the roof's rafters and sheathing.

Thought: Fibrous material used as an underlayment or sheathing document, describes roll roofer materials.

Flashing: Items of metal or move roofing used to form water close up around vent pipes, chimneys, adjoining wall space, dormers and valleys.

Gable: The conclusion of an outdoor wall that comes to a triangular level at the shape of your sloping roof structure.

Granules: Ceramic-coated in addition to fired crushed stone that is applied since the top surface area of asphalt roofer products.

Gutter: Typically the trough that channels water from the eaves to the spickets. Usually attached to be able to the fascia.

Head lap: An overlapping of shingles or perhaps roofing felt with their upper edge.

Hip: The collapse or vertical shape formed by typically the intersection of 2 sloping roof aircraft. Runs from your ridge to the eaves.

Ice dam: Situation forming water back-up at the eave areas by typically the thawing and re-freezing of melted snowfall on the overhang. Can force normal water under shingles, causing leaks.

Interlocking shingles: Individual shingles that will mechanically fasten to one another to provide wind flow resistance.

Laminated shingles: Strip shingles built of two individual pieces laminated jointly to create extra thickness. Also called three-dimensional and new shingles.

Lap: Surface area where one shingle or roll terme conseillé with another throughout the application method.

Mansard roof: Some sort of design with a nearly vertical roof planes connected to the roof plane regarding less slope with its peak. Is made up of no gables.

Drinking stabilizers: Finely ground limestone, slate, traprock or other inert materials added in order to asphalt coatings intended for durability and increased resistance to open fire and weathering.

Nesting: A method regarding reroofing, installing a second layer of new asphalt shingles, in which the top edge in the new shingle is definitely butted against the base of the existing shingle hook.

Pitch: The level of roofing incline expressed as the ratio from the rise, in feet, to the period, in feet.


Small Slope - Roof structure pitches that are less than 25 degrees.

Normal Mountain - Roof pitch that are in between 30 and forty five degrees.

Steep Slope - Roof pitch which can be more compared to 45 degrees.

Rafter: The supporting mounting that makes up the roof structure; instantly beneath the porch; the top sheathing is definitely nailed to the particular rafters.

Rake: The particular inclined edge involving a sloped roof top over a wall structure from the eave in order to the ridge. These people can be close up or extended.

Shape: The horizontal external angle formed by simply the intersection regarding two sloping attributes of a roof structure at the greatest point of typically the roof, hip or dormer.

Run: The particular horizontal distance in between the eaves and a point directly beneath the ridge; or one half the span.

Selvage: That portion regarding roll roofing overlapped by the application involving the roof addressing to obtain two times coverage.

Sheathing: Outside grade boards applied as being a roof porch material.

Shed roof top: An individual roof plane with no hips, textures, valleys or gables, not connected to be able to any other rooftops.

Slope: The diploma of roof incline expressed as being the percentage of the increase, in inches, for the run, in toes.

Smooth-surfaced roofing: Spin roofing that is usually covered with floor talc or briciola instead of granules (coated).

Soffit: The finished underside of the eaves that extends from the ligament to the exterior and hides the bottom of the overhang.

Soil stack: A vent pipe that will penetrates the roof.

Period: The horizontal length from eaves in order to eaves.

Specialty eaves flashing membrane: A self-adhering, waterproofing shingle underlayment made to safeguard against water infiltration due to glaciers dams or blowing wind driven rain.

Beginner strip: Asphalt roof covering applied at the particular eaves as the first course of shingles installed.

Tab: The next thunderstorm exposed surface of strip shingles between cutouts.

Telegraphing: Shingles installed over an uneven surface that show distortion.

Truss - A combination of beams, bars and ties, usually in triangular models to form a framework for assistance in wide course roof construction.

UL label: Label exhibited on packaging to indicate the degree of fire and/or wind resistance associated with asphalt roofing.

Underlayment: A layer associated with asphalt based explained materials installed underneath main roofing substance before shingles happen to be installed to supply additional protection intended for the deck.

Vly: The internal viewpoint formed by the particular intersection of 2 inclined roof surfaces to offer water runoff.

Vapor barrier/retarder: Any kind of material that inhibits the passage regarding water or water vapor through it.

Vent: Any device installed on the roof as an wall plug for air to ventilate the bottom of the roof top deck.

Public Last updated: 2023-02-07 03:58:37 PM