Notes

Roofing Terminology
Knowing common roofer terminology will enable you as a home owner to create an knowledgeable decision about roof materials that are great matches to your home's style and the area in which you live. It may also help a person understand the contract together with your roofing professional and the task updates.
Some important roofing terms are usually listed below:

Asphalt: A waterproofing real estate agent applied to roofing supplies during manufacturing.

Concrete plastic roofing concrete floor: An asphalt-based sealant used to bond roof covering materials. Also recognized as flashing concrete floor, roof tar, bull or mastic.

Back surfacing: Granular substance applied to typically the back side involving shingles to keep these people from sticking throughout delivery and safe-keeping.

Base flashing: Of which portion of the flashing attached in order to or resting on the deck to be able to direct the circulation of water onto the roof.

Built-up roof: Multiple layers of asphalt plus ply sheets fused together.

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

roofing contractor : To fill up a joint to prevent leaks.

Shut down valley: The valley flashing is covered by shingles.

Covering: A layer of viscous asphalt put on the outer roof top surface to safeguard the roof membrane layer.

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

Concealed nail method: Application of throw roofing in which in turn all nails are usually covered by a new cemented, overlapping course.

Counter flashing: That will portion of the flashing attached to a vertical surface area above the aircraft of the roofing to stop water through migrating behind the base flashing.

Program: Row of shingles that can manage horizontally, diagonally or perhaps vertically.

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

Floor: The top area that a roof structure strategy is applied, area installed over the supporting framing members.

Double coverage: Asphalt roofing whose lapped portion is at very least two inches larger than the subjected portion, resulting throughout two layers of roofing material more than the deck.

Downspout: A pipe regarding draining water through roof gutters to drain. Also named a leader.

Drip advantage: L-shaped flashing utilized along the eaves and rakes to enable water run-off directly into the gutters and drip clear involving underlying construction.

Eave: The part of the roof structure that overhangs or extends outward and even is not immediately within the exterior surfaces or the buildings interior.

Exposed nail method: Application of roll roofing where nails happen to be driven into typically the overlapping span of roofer. Nails are exposed to the particular elements.

Fascia: The wood trim panel used to cover the cut ends of the roof's trusses and sheathing.

Felt: Fibrous material utilized as an underlayment or sheathing paper, describes roll roofing materials.

Flashing: Bits of metal or throw roofing used to be able to form water close off around vent water lines, chimneys, adjoining walls, dormers and valleys.

Gable: The ending of an exterior wall that comes to a triangular stage at the shape of the sloping roof top.

Granules: Ceramic-coated and even fired crushed stone that is certainly applied while the top surface area of asphalt roof products.

Gutter: The particular trough that stations water through the eaves to the downspouts. Usually attached to the fascia.

Head lap: An overlapping of shingles or roofing felt at their upper border.

Hip: The flip or vertical shape formed by the particular intersection of 2 sloping roof aircraft. Runs through the shape to the eaves.


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

Interlocking shingles: Individual shingles that will mechanically fasten to each other to provide wind flow resistance.

Laminated shingles: Strip shingles produced of two individual pieces laminated along to create extra thickness. Also named three-dimensional and new shingles.

Lap: Area where one shingle or roll overlaps with another in the course of the application process.

Mansard roof: A new design with an almost vertical roof planes connected to some sort of roof plane associated with less slope from its peak. Is made up of no gables.

Mineral stabilizers: Finely surface limestone, slate, traprock or other inert materials added in order to asphalt coatings for durability and enhanced resistance to fire and weathering.

Having their nests: A method involving reroofing, installing a second layer of recent asphalt shingles, in which the top edge of the new shingle will be butted against typically the bottom edge of the existing shingle tab.

Pitch: The degree of roof structure incline expressed since the ratio in the rise, in ft, to the duration, in feet.

Low Slope - Roof structure pitches that are usually less than thirty degrees.

Normal Slope - Roof pitch that are in between 30 and 45 degrees.

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

Rafter: The supporting framing that makes up the roof structure; immediately beneath the porch; the top sheathing is usually nailed to the particular rafters.

Rake: Typically the inclined edge associated with a sloped roofing over a walls through the eave to be able to the ridge. They will can be close up or extended.

Ridge: The horizontal exterior angle formed by the intersection regarding two sloping attributes of a roof at the highest point of the roof, hip or even dormer.

Run: Typically the horizontal distance involving the eaves and a point directly beneath the ridge; or half the span.

Selvage: That portion of roll roofing overlapped from the application involving the roof masking to obtain two times coverage.

Sheathing: Outside grade boards utilized as being a roof floor material.

Shed roof structure: A single roof plane without hips, side rails, valleys or gables, not connected to be able to any other roofing.

Slope: The level of roof incline expressed because the proportion of the climb, in inches, to the run, in toes.

Smooth-surfaced roofing: Move roofing that is usually covered with surface talc or granello instead of granules (coated).

Soffit: The done underside of the eaves that expands from the structures to the siding and hides the bottom of the overhang.

Soil stack: A new vent pipe of which penetrates the top.

Duration: The horizontal distance from eaves to be able to eaves.

Specialty eaves flashing membrane: Some sort of self-adhering, waterproofing shingle underlayment designed to safeguard against water infiltration due to ice dams or wind driven rain.

Starter strip: Asphalt roofing applied at the eaves since the initial course of shingles installed.

Tab: The weather exposed surface involving strip shingles between your cutouts.

Telegraphing: Shingles installed over a good uneven surface of which show distortion.

Truss - A combo of beams, night clubs and ties, usually in triangular products to form a new framework for assistance in wide period roof construction.

UL label: Label exhibited on packaging to indicate the level of fire and wind resistance regarding asphalt roofing.

Underlayment: A layer regarding asphalt based folded materials installed beneath main roofing materials before shingles happen to be installed to provide additional protection for the deck.

Valley: The internal position formed by typically the intersection of two inclined roof areas to offer water runoff.

Vapor barrier/retarder: Virtually any material that inhibits the passage of water or drinking water vapor through that.

Vent: Any system installed on the roof as an wall socket for air in order to ventilate the underside of the roof structure deck.

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