Notes

Roof Terminology
Knowing common roof terminology will enable you as a house owner to create an educated decision about roofing materials which might be very good matches for your house's style along with the region in which a person live. It can also help you understand the contract along with your roofing qualified and the job updates.
Some key roofing terms happen to be listed below:

Asphalt: A waterproofing agent placed on roofing components during manufacturing.

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

Again surfacing: Granular material applied to the particular back side associated with shingles to help keep all of them from sticking in the course of delivery and storage area.

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

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

Butt advantage: The bottom advantage from the shingle dividers.

Caulk: To fill up a joint in order to prevent leaks.

Sealed valley: The pit flashing is included by shingles.

Covering: A layer regarding viscous asphalt placed on the outer roofing surface to protect the roof membrane layer.

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

Concealed nail approach: Application of roll roofing in which often all nails will be covered by a new cemented, overlapping program.

Counter flashing: Of which portion of the particular flashing attached in order to a vertical area above the plane of the roofing to avoid water through migrating behind the particular base flashing.

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

Cricket: Some sort of peaked water diverter installed at typically the back of some sort of chimney to stop accumulation of snow and ice and also to deflect water.

Porch: The top surface area which a roofing strategy is applied, surface installed over the particular supporting framing people.

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

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

Drip advantage: L-shaped flashing utilized over the eaves and rakes to let water run-off in to the gutters and drip clear of underlying construction.

Eave: Fault the roof that overhangs or extends outward in addition to is not immediately on the exterior wall space or perhaps the buildings inside.

Exposed nail method: Putting on roll roof where nails are usually driven into typically the overlapping span of roofing. Check out here are exposed to the particular elements.

Fascia: Some sort of wood trim table used to conceal the cut comes to an end with the roof's trusses and sheathing.

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

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

Gable: The conclusion of an external wall that involves a triangular point at the ridge of your sloping roof structure.

Granules: Ceramic-coated plus fired crushed rock that may be applied because the top surface of asphalt roof covering products.

Gutter: The particular trough that stations water from the eaves to the spickets. Usually attached to the fascia.

Mind lap: An overlapping of shingles or even roofing felt in their upper advantage.

Hip: The times or vertical shape formed by typically the intersection of a couple of sloping roof aircraft. Runs from the ridge to the eaves.

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

Interlocking shingles: Individual shingles of which mechanically fasten to each other to provide wind flow resistance.

Laminated shingles: Strip shingles built of two independent pieces laminated together to create further thickness. Also referred to as three-dimensional and executive shingles.

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

Mansard roof: A design with a nearly vertical roof airplane connected to some sort of roof plane regarding less slope with its peak. Contains no gables.

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

Having their nests: A method associated with reroofing, installing the second layer of recent asphalt shingles, in which the top edge from the new shingle is usually butted against typically the bottom edge of the particular existing shingle tab.

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

Low Slope - Roof structure pitches that will be less than 25 degrees.

Normal Mountain - Roof pitches that are between 30 and 45 degrees.

Steep Mountain - Roof pitch that are more as compared to 45 degrees.

Rafter: The supporting framework that makes in the roof structure; instantly beneath the porch; the top sheathing is nailed to typically the rafters.

Rake: Typically the inclined edge associated with a sloped roof structure over a walls from the eave to be able to the ridge. They can be near or extended.

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

Run: The particular horizontal distance involving the eaves and also a point directly underneath the ridge; or one half the span.

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

Sheathing: Exterior grade boards used as a roof floor material.

Shed roof: An individual roof airplane with no hips, textures, valleys or gables, not connected in order to any other attics.

Slope: The education of roof slope expressed because the proportion of the surge, in inches, towards the run, in foot.

Smooth-surfaced roofing: Throw roofing that is covered with ground talc or briciola rather than granules (coated).

Soffit: The done underside of typically the eaves that stretches from the fascia to the exterior siding and hides the particular bottom of your overhang.

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

Course: The horizontal distance from eaves to eaves.

Specialty eaves flashing membrane: A new self-adhering, waterproofing shingle underlayment created to shield against water infiltration due to ice cubes dams or blowing wind driven rain.

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

Tab: The elements exposed surface regarding strip shingles involving the cutouts.

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

Truss - A combination of beams, pubs and ties, usually in triangular products to form a new framework for support in wide span roof construction.

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

Underlayment: A layer associated with asphalt based thrown materials installed below main roofing materials before shingles will be installed to offer additional protection with regard to the deck.

Area: The internal angle formed by the intersection of 2 inclined roof areas to supply water runoff.


Vapor barrier/retarder: Virtually any material that helps prevent the passage involving water or drinking water vapor through this.

Vent: Any gadget installed on the top as an outlet for air in order to ventilate the bottom of the roof deck.

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