Notes

Roofing Terminology
Knowing common roof terminology will enable you as a property owner to generate an knowledgeable decision about roof covering materials which can be good matches to your home's style along with the region in which you live. It will certainly also help a person be familiar with contract along with your roofing qualified and the job updates.
Some key roofing terms are usually listed below:

Concrete: A waterproofing realtor put on roofing components during manufacturing.

Asphalt plastic roofing cement: An asphalt-based sealant accustomed to bond roofing materials. Also known as flashing concrete floor, roof tar, half truths or mastic.

Back surfacing: Granular materials applied to typically the back side involving shingles to help keep them from sticking throughout delivery and storage space.

Base flashing: That portion of typically the flashing attached to be able to or resting on the deck to direct the flow of water on the roof.


Built-up roof: Multiple levels of asphalt and even ply sheets bonded together.

Butt border: The bottom advantage in the shingle dividers.

Great site : To load a joint to prevent leaks.

Shut valley: The area flashing is included by shingles.

Coating: A layer of viscous asphalt placed on the outer roofing surface to shield the roof tissue layer.

Collar: Pre-formed flange placed over some sort of vent pipe to be able to seal the roof structure around the vent pipe opening. Also called as a vent outter.

Concealed nail technique: Application of move roofing in which usually all nails are covered by a new cemented, overlapping study course.

Counter flashing: That will portion of the particular flashing attached to a vertical area above the planes of the roof to prevent water by migrating behind the base flashing.

Program: Row of shingles that can operate horizontally, diagonally or even vertically.

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

Terrace: The top surface of which a roof structure system is applied, area installed over the particular supporting framing users.

Double coverage: Concrete roofing whose lapped portion reaches minimum two inches wider than the revealed portion, resulting within two layers regarding roofing material more than the deck.

Downspout: A pipe with regard to draining water by roof gutters to drain. Also referred to as a leader.

Drip border: L-shaped flashing utilized along the eaves and even rakes to let water run-off directly into the gutters and to drip clear associated with underlying construction.

Eave: The part of the roof structure that overhangs or perhaps extends outward and even is not straight on the exterior walls and also the buildings inside.

Exposed nail technique: Using roll roof where nails will be driven into typically the overlapping span of roofer. Nails are exposed to typically the elements.

Fascia: A wood trim plank used to hide the cut ends of the roof's trusses and sheathing.

Felt: Fibrous material used as an underlayment or sheathing papers, describes roll roof materials.

Flashing: Items of metal or roll roofing used in order to form water seal off around vent water lines, chimneys, adjoining wall space, dormers and miles.

Gable: The ending of an outdoor wall that relates to a triangular stage at the shape of the sloping roof.

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

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

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

Hip: The fold or vertical ridge formed by the particular intersection of 2 sloping roof aircraft. Runs in the ridge to the eaves.

Ice dam: Problem forming water back-up at the eave areas by the particular thawing and re-freezing of melted ideal on the hang over. Can force water under shingles, triggering leaks.

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

Laminated shingles: Strip shingles produced of two individual pieces laminated collectively to create additional thickness. Also known as three-dimensional and architectural shingles.

Lap: Surface area where one shingle or roll overlaps with another in the course of the application procedure.

Mansard roof: A new design with a nearly vertical roof planes connected to a roof plane associated with less slope with its peak. Contains Helpful site .

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

Nesting: A method regarding reroofing, installing a new second layer of new asphalt shingles, when the top edge with the new shingle will be butted against typically the bottom edge of typically the existing shingle hook.

Pitch: The degree of roof incline expressed while the ratio in the rise, in foot, to the span, in feet.

Lower Slope - Roofing pitches that are less than 25 degrees.

Normal Incline - Roof pitch that are involving 30 and forty-five degrees.

Steep Slope - Roof pitches which are more as compared to 45 degrees.

Rafter: The supporting mounting that makes the roof structure; right away beneath the floor; the roof sheathing is definitely nailed to typically the rafters.

Rake: Typically the inclined edge regarding a sloped roof structure over a walls from the eave to the ridge. These people can be in close proximity or extended.

Ridge: The horizontal external angle formed simply by the intersection associated with two sloping sides of a roof at the maximum point of the particular roof, hip or even dormer.

Run: The horizontal distance among the eaves and also a point directly within the ridge; or one half the span.

Selvage: That portion of roll roofing overlapped by the application regarding the roof covering up to obtain two times coverage.

Sheathing: Exterior grade boards employed as being a roof floor material.

Shed roof: A single roof plane with no hips, ridges, valleys or gables, not connected in order to any other roofing.

Slope: The level of roof slope expressed as the percentage of the rise, in inches, for the run, in feet.

Smooth-surfaced roofing: Spin roofing that will be covered with floor talc or granello instead of granules (coated).

Soffit: The finished underside of typically the eaves that extends from the ligament to the house and hides the particular bottom of your overhang.

Soil stack: Some sort of vent pipe that will penetrates the top.

Span: The horizontal range from eaves in order to eaves.

Specialty eaves flashing membrane: A new self-adhering, waterproofing shingle underlayment built to guard against water infiltration due to glaciers dams or breeze driven rain.

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

Tab: The weather exposed surface of strip shingles between the cutouts.

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

Truss - A combo of beams, pubs and ties, typically in triangular models to form the framework for assistance in wide duration roof construction.

UL label: Label shown on packaging to indicate the levels of fire and/or wind resistance of asphalt roofing.

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

Valley: The internal perspective formed by the intersection of 2 inclined roof floors to deliver water runoff.

Vapor barrier/retarder: Any kind of material that helps prevent the passage associated with water or drinking water vapor through it.

Vent: Any device installed on the top as an store for air to be able to ventilate the underside of the roof deck.

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