A cement derived from asphalt, employed to bond roofing materials; also recognized as flashing cement or mastic. It should comply with either ASTM D 4586 (Asbestos Free) or ASTM D 2822 (Asbestos Containing).
A solid or semisolid brownish-black mixture of bitumens acquired from native deposits or petroleum byproducts, utilized in paving, roofing, and waterproofing.
Fine mineral matter applied to the backside of shingles to prevent adherence.
The part of the flashing attached to or resting on the deck, guiding water flow onto the roof covering.
Air bubbles that may surface on asphalt roofing post-installation.
Airborne burning embers released from a fire.
A re-roofing technique using metric-sized shingles.
A flat or low-sloped roof comprised of multiple layers of asphalt and ply sheets.
A collection of shingles, typically 3, 4, or 5 bundles per square, held together for packaging.
The lower edge of shingle tabs.
A beveled strip positioned in the angle between a roof and a wall to prevent sharp bends in the roofing material.
Surface sheet in most built-up roof systems, made of organic or modified asphalt products.
To seal a joint with mastic or asphalt cement to prevent leaks.
Synonymous with Asphalt Roofing Cement.
A marked line on the roof, made with a taut string dusted with chalk, used for alignment.
Fire-resistance ratings indicating the ability to withstand varying levels of fire exposure.
A valley treatment method where one side’s shingles extend across while the other side is trimmed 2 inches from the valley centerline.
A sheet with an asphalt and sand finish to prevent seepage.
A layer of viscous asphalt applied to the base material, embedding granules or surfacing.
A pre-formed flange placed over a vent pipe to seal the roof around the opening, also known as a vent sleeve.
Roll roofing application where all nails are driven beneath the overlapping course and covered, avoiding exposure to weather.
The transformation of water vapor into liquid on contact with a cold surface due to warm, moisture-laden air.
The flashing part attached to a vertical surface to prevent water from reaching behind the base flashing.
A row of shingles or roll roofing running along the roof’s length.
The weather protection amount by roofing material, depending on layers between the exposed surface and deck.
A peaked saddle construction at the chimney back to prevent snow accumulation and deflect water.
The open portions between strip shingle tabs.
The roof surface applied over supporting framing members.
The structural roof “skin” over which roofing is applied.
A framed window unit projecting through the roof’s sloping plane.
Application ensuring at least 2 inches wider lapped portion than the exposed portion, resulting in two layers.
A pipe draining water from roof gutters, also known as a leader.
Non-corrosive material along eaves and rakes to allow water run-off clear of underlying construction.
Application of giant individual shingles parallel to the eaves.
Extra roofing material layer at eaves to prevent water damage.
The lower, overhanging roof part.
Boards along eaves and rakes for re-roofing secure edges after cutting back existing wood shingles.
An extension perpendicular to a building’s length.
Roll roofing application where nails are exposed to weather.
Vulnerability to elements, heat, cold, wind, or rain.
Trim covering the eaves’ rafter end, often where gutters attach.
Tapered wood filler strips along old wood shingles’ butts during re-roofing.
Fibrous material saturated with asphalt, used as underlayment or sheathing paper.
Base material made from glass fiber for asphalt roofing.
Measurement for resistance to fire.
See Asphalt Roofing Cement.
Metal or roll roofing pieces preventing water seepage around roof intersections, chimneys, walls, dormers, and valleys.
Shingles without factory-applied adhesive.
A roof with sloping planes on each side of the ridge and gables at each end.
The triangular point at the ridge of a sloping roof.
A roof with two sloping planes of different pitch on each side, with gables at each end.
Colored crushed rock coating on asphalt roofing.
A trough channeling water from eaves to downspouts.
Shingles resembling hexagons after installation.
A roof with sloping planes on each of four sides, without gables.
Shingles covering the angle formed by the intersection of two sloping roof planes.
The inclined angle formed by two sloping roof planes, running from the ridge to the eaves.
Accumulation at the lower roof edge from melted snow, forcing water under shingles and causing leaks.
Shingles mechanically fastening to provide wind resistance.
Strip shingles with multiple tabs for extra thickness.
Asphalt cement adhering overlapping roll roofing plies.
To cover one shingle or roll surface with another.
Installing asphalt shingles on a roof sloped between 2 and 4 inches per foot.
A roof with two sloping planes of different pitch on each of four sides, the lower plane steeper than the upper.
Asphalt-based primer preparing masonry surfaces for asphalt bonding.
Asphalt-based sealant, applied manually with rubber gloves.
Roofing nails, screws, and plates securing insulation and single-ply membranes, metal or plastic.
Ground inert materials added to asphalt coatings for durability and fire/weather resistance.
Asphalt shingles or roll roofing coated with granules.
Cap or ply sheets manufactured with a modified rubber product, with higher tensile strength.
Re-roofing method placing new shingles over old ones, with the new shingle’s top edge butted against the bottom edge of the existing shingle tab.
Shingles with a single tab and no cutouts.
Wood-based panel without veneer carrying an APA span rating, e.g., wafer board or oriented strand board.
Installing asphalt shingles on roof slopes between 4 inches and 21 inches per foot.
Valley construction where shingles on both sides are trimmed, not extending across, with exposed valley flashing.
Asphalt roofing base material from cellulose fibers.
Roof structure portion extending beyond building walls.
Prebuilt wooden structures for transporting materials.
Low protective wall above the roofline or balcony.
Roof incline degree as rise to span ratio.
Number of roofing layers, e.g., one-ply, two-ply.
Reinforcing membrane for cold overlay systems.
Asphalt cement for bonding shingle tabs and roll roofing laps, applied just before application.
Vertical roofing application, not recommended.
Supporting framing member beneath the deck, sloping from ridge to wall.
The inclined roof edge over a wall from eave to ridge.
Shingles with varying tab sizes and exposure.
Strip on self-sealing shingles’ backs to prevent sticking in bundles, not requiring removal during application.
The horizontal external angle formed by two sloping roof planes.
Shingles covering the ridge angle.
Ventilation installed along the ridge.
Vertical distance from eaves to ridge.
Asphalt roofing in roll form.
Rigid board applied with mechanical fasteners, second layer glued with adhesive.
Saturated tape for flashing and patching asphalt roofing.
Horizontal distance from eaves to ridge, one-half the span.
Asphalt impregnating organic felt base material.
Asphalt-impregnated felt underlayment between deck and roofing material.
Factory-applied adhesive bonding shingle courses upon sun exposure.
Portion overlapped by the succeeding roll course for double coverage.
Slight color variations due to manufacturing.
Exterior-grade boards as roof deck material.
Roof with one sloping plane, lacking hips, ridges, valleys, or gables.
Shingles with factory-applied adhesive.
Roofing with one layer over the deck.
Rubber roof membrane sealed and fastened at laps with heat welding or adhesive.
Roof incline degree as rise to run ratio.
Roll roofing with ground talc or mica surfacing.
The finished eaves’ underside.
Roof-penetrating vent pipe.
Horizontal eaves distance.
Roof unit measure covering 100 square feet.
Shingles with uniform tab size and exposure.
Asphalt roofing at eaves protecting under the first course.
Asphalt shingles on slopes greater than 21 inches per foot.
Flashing at a vertical surface meeting a sloping roof plane.
Asphalt shingles with three times length to width.
Exposed strip shingle portion between cutouts.
See back surfacing.
Existing roof membrane removal.
Shingle distortion from uneven surfaces.
Laminated shingles.
Roofing portion covered by the succeeding course.
Cap sheet heated with a torch before application.
Label indicating asphalt roofing fire and/or wind resistance.
Asphalt-saturated felt beneath roofing for additional protection.
Internal angle formed by two sloping roof planes, directing water runoff.
Material preventing water vapor passage.
Outlet for air protruding through the roof.
Valley construction with shingles woven across the valley, with no exposed valley flashing.
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