Powell Ohio RoofReplacement

A.
Absorption: the capacity of a material to approve within its body quantities of gases or fluid, such as moisture.
Accelerated Weathering: the process in which materials are subjected to a controlled environment where numerous exposures such as warm, water, condensation, or light are become multiply their impacts, therefore accelerating the weathering process. The material's physical homes are determined hereafter process and contrasted to the original residential or commercial properties of the unexposed material, or to the properties of the material that has been revealed to all-natural weathering.
Adhere: to cause 2 surfaces to be held together by bond, commonly with asphalt or roofing cements in built-up roofing and with call cements in some single-ply membranes.
Accumulation: rock, stone, crushed rock, crushed slag, water-worn gravel or marble chips made use of for surfacing and/or ballasting a roof system.
Aging: the result on materials that are subjected to an atmosphere for a period of time.
Alligatoring: the breaking of the surfacing asphalt on a built-up roof, producing a pattern of cracks comparable to an alligator's conceal; the fractures may or might not prolong with the emerging bitumen.
Light weight aluminum: a non-rusting steel sometimes utilized for metal roofing as well as flashing.
Ambient Temperature: the temperature of the air; air temperature level.
Application Rate: the quantity (mass, volume, or thickness) of product used each location.
Apron Flashing: a term made use of for a flashing located at the juncture of the top of the sloped roof as well as a vertical wall or steeper-sloped roof.
Building Roof shingles: roof shingles that provides a dimensional look.
Asphalt: a dark brownish or black material found in an all-natural state or, much more frequently, left as a deposit after vaporizing or otherwise processing petroleum or petroleum.
Asphalt Solution: a mix of asphalt bits and also an emulsifying representative such as bentonite clay as well as water. These elements are combined by using a chemical or a clay emulsifying representative as well as mixing or mixing machinery.
Asphalt Felt: an asphalt-saturated and/or an asphalt-coated really felt. (See Really Felt.).
Asphalt Roof Cement: a trowelable combination of solvent-based asphalt, mineral stabilizers, other fibers and/or fillers. Identified by ASTM Criterion D 2822-91 Asphalt Roof Cement, and D 4586-92 Asphalt Roof Cement, Asbestos-Free, Types I as well as II.
Attic: the cavity or open room above the ceiling and quickly under the roof deck of a steep-sloped roof.
B.
Back-Nailing: (additionally described as Blind-Nailing) the method of toenailing the back section of a roofing ply, steep roofing unit, or various other parts in a manner to make sure that the bolts are covered by the next consecutive ply, or course, as well as are not exposed to the climate in the finished roof system.
Ballast: a securing material, such as accumulation, or precast concrete pavers, which employ the force of gravity to hold (or aid in holding) single-ply roof membranes in place.
Barrel Vault: a building profile featuring a rounded profile to the roof on the short axis, but without any angle adjustment on a cut along the long axis.
Base Flashing (membrane layer base flashing): plies or strips of roof membrane material utilized to close-off and/or seal a roof at the roof-to-vertical junctions, such as at a roof-to-wall time. Membrane base flashing covers the side of the field membrane. (Likewise see Flashing.).
Base Ply: the lowermost ply of roofing in a roof membrane or roof system.
Base Sheet: an impregnated, filled, or layered really felt positioned as the very first ply in some multi-ply built-up and modified bitumen roof membrane layers.
Batten: (1) cap or cover; (2) in a steel roof: a steel closure established over, or covering the joint between, adjacent metal panels; (3) wood: a strip of wood usually set in or over the structural deck, used to boost and/or affix a key roof covering such as tile; (4) in a membrane roof system: a narrow plastic, timber, or steel bar which is used to secure or hold the roof membrane and/or base blinking in place.
Batten Seam: a metal panel profile attached to and also developed around a beveled timber or metal batten.
Asphalt: (1) a class of amorphous, black or dark colored, (strong, semi-solid, or viscous) cementitious sub-stances, natural or made, composed mostly of high molecular weight hydrocarbons, soluble in carbon disulfide, and located in petroleum asphalts, coal tars as well as pitches, wood tars as well as asphalts; (2) a common term utilized to signify any material composed primarily of asphalt, normally asphalt or coal tar.
Blackberry (sometimes described as Blueberry or Tar-Boil): a small bubble or blister in the flood finish of an aggregate-surfaced built-up roof membrane layer.
Blind-Nailing: making use of nails that are not revealed to the climate in the ended up roof.
Sore: an encased pocket of air, which might be mixed with water or solvent vapor, trapped in between imper-meable layers of felt or membrane, or in between the membrane layer and also substrate.
Stopping: sections of wood (which may be preservative treated) built into a roof assembly, generally attached above the deck and listed below the membrane layer or flashing, made use of to tense the deck around an opening, serve as a quit for insulation, support a curb, or to serve as a nailer for add-on of the membrane layer and/or flashing.
BOMA: Structure Owners & Managers Association.
Brake: hand- or power-activated machinery used to create steel.
British Thermal Unit (BTU): the heat required to increase the temperature of one extra pound of water one level Fahrenheit (joule).
Brooming: an activity executed to assist in embedment of a ply of roofing product right into warm asphalt by using a broom, squeegee, or unique execute to smooth out the ply as well as guarantee call with the bitumen or adhe-sive under the ply.
Bend: an upward, elongated tenting variation of a roof membrane layer often taking place over insulation or deck joints. A clasp might be an indicator of activity within the roof setting up.
Building ordinance: released regulations as well as statutes developed by an identified firm prescribing design lots, treatments, and building and construction information for structures. Normally putting on assigned territories (city, region, state, etc.). Building regulations control style, building, and top quality of materials, usage and also tenancy, place and maintenance of structures as well as frameworks within the location for which the code has been embraced.
Built-Up Roof Membrane Layer (BUR): a constant, semi-flexible multi-ply roof membrane layer, consisting of plies or layers of saturated felts, coated felts, textiles, or floor coverings in between which alternative layers of asphalt are applied. Normally, built-up roof membranes are surfaced with mineral aggregate and also bitumen, a liquid-applied coat-ing, or a granule-surfaced cap sheet.
Bundle: a private bundle of trembles or shingles.
Butt Joint: a joint developed by nearby, separate areas of product, such as where two neighboring items of insulation abut.
Button Punch: a process of caving in 2 or more densities of steel that are pressed against each various other to stop slippage in between the steel.
Butyl: rubber-like material produced by copolymerizing isobutylene with a percentage of isoprene. Butyl may be made in sheets, or mixed with other elastomeric products to make sealants and also adhesives.
Butyl Layer: an elastomeric coating system stemmed from polymerized isobutylene. Butyl finishings are char-acterized by low water vapor leaks in the structure.
Butyl Rubber: a synthetic elastomer based upon isobutylene and a small quantity of isoprene. It is vulcanizable and also includes reduced permeability to gases and water vapor.
Butyl Tape: a sealant tape sometimes made use of between steel roof panel seams as well as finish navigate here laps; also made use of to seal other sorts of sheet steel joints, as well as in numerous sealer applications.
C.
Camber: a slight convex contour of a surface, such as in a prestressed concrete deck.
Cover: any overhanging or forecasting roof framework, generally over entryways or doors. In some cases the severe end is unsupported.
Cant: a beveling of foam at a right angle joint for stamina and also water escape.
Cant Strip: a diagonal or triangular-shaped strip of timber, timber fiber, perlite, or various other product designed to function as a steady transitional airplane between the straight surface area of a roof deck or inflexible insulation and also an upright surface area.
Cap Flashing: usually made up of metal, utilized to cover or shield the top sides of the membrane layer base blinking, wall surface blinking, or key flashing. (See Flashing as well as Coping.).
Cap Sheet: a granule-surface layered sheet made use of as the leading ply of some built-up or changed asphalt roof membrane layers and/or blinking.
Vein Activity: the activity that triggers motion of liquids by surface tension when touching two sites surrounding surface areas such as panel side laps.
Caulking: (1) the physical process of securing a joint or point; (2) sealing and making weather-tight the joints, joints, or gaps in between nearby units by loaded with a sealer.
Dental caries Wall surface: a wall surface built or arranged to offer an air room within the wall (with or without shielding product), in which the inner as well as outer products are tied together by structural framework.
CCF: 100 cubic feet.
Chalk: a fine-grained deposit externally of a product.
Chalk Line: a line made on the roof by breaking a taut string or cable dusted with colored chalk. Utilized for alignment objectives.
Liquid chalking: the deterioration or migration of a component, in paints, finishings, or other products.
Smokeshaft: stone, masonry, upreared metal, or a wood mounted structure, consisting of one or more flues, forecasting through and also above the roof.
Cladding: a material made use of as the exterior wall surface enclosure of a building.
Cleat: a steel strip, plate or metal angle item, either continuous or individual (" clip"), used to secure two or even more components with each other.
Closed-Cut Valley: an approach of valley application in which shingles from one side of the valley expand across the valley while shingles from the opposite side are trimmed back around 2 inches (51mm) from the valley centerline.
Closure Strip: a steel or resilient strip, such as neoprene foam, made use of to close openings produced by signing up with steel panels or sheets as well as flashings.
Coal Tar: a dark brownish to black tinted, semi-solid hydrocarbon gotten as deposit from the partial evapo-ration or distillation of coal tars. Coal tar pitch is further improved to conform to the complying with roofing grade requirements:.
Coal Tar Bitumen: a proprietary brand name for Kind III coal tar used as the dampproofing or waterproof-ing representative in dead-level or low-slope built-up roof membranes, complying with ASTM D 450, Kind III.
Coal Tar Pitch: a coal tar made use of as the waterproofing representative in dead-level or low-slope built-up roof mem-branes, conforming to ASTM Spec D 450, Type I or Kind III.
Coal Tar Waterproofing Pitch: a coal tar utilized as the dampproofing or waterproofing representative in below-grade frameworks, satisfying ASTM Specification D 450, Type II.
Layered Base Sheet: a felt that has formerly been saturated (filled or fertilized) with asphalt and also later on coated with tougher, a lot more viscous asphalt, which significantly raises its impermeability to dampness.
Coated Textile: textiles that have actually been fertilized and/or coated with a plastic-like material in the form of an option, diffusion hot-melt, or powder. The term additionally puts on materials resulting from the application of a preformed movie to a fabric using calendering.
Layered Felt (Sheet): (1) an asphalt-saturated really felt that has actually likewise been coated on both sides with more challenging, a lot more viscous "coating" asphalt; (2) a glass fiber felt that has actually been all at once impregnated as well as coated with asphalt on both sides.
Covering: a layer of material spread over a surface area for protection or decoration. Coatings for SPF are usually liquids, semi-liquids, or mastics; spray, roller, or brush applied; and also treated to an elastomeric consistency.
Cohesion: the degree of internal bonding of one material to click to read itself.
Cold Process Built-Up Roof: a continual, semi-flexible roof membrane layer, consisting of a ply or plies of felts, floor coverings or other reinforcement materials that are laminated together with alternate layers of liquid-applied (generally asphalt-solvent based) roof seals or adhesives set up at ambient or a somewhat elevated temperature.
Flammable: efficient in burning.
Suitable Products: two or even more materials that can be combined, combined, or affixed without separating, reacting, or affecting the materials detrimentally.
Make-up Roof shingles: a system of asphalt roof shingles roofing.
Concealed-Nail Method: an approach of asphalt roll roofing application in which all nails are driven right into the underlying program of roofing as well as covered by an adhered, overlapping training course.
Condensation: the conversion of water vapor or other gas to fluid state as the temperature level drops or atmos-pheric stress rises. (Also see Humidity.).
Conductor Head: a transition element in between a through-wall scupper and also downspout to collect as well as guide run-off water.
Call Seals: adhesives made use of to adhere or bond various roofing components. These adhesives adhere mated elements immediately on get in touch with of surface areas to which the adhesive has actually been applied.
Contamination: the process of making a material or surface area unclean or unsuited for its desired purpose, usually by the addition or add-on of unfavorable foreign substances.
Coping: the covering item on top of a wall surface which is subjected to the climate, typically made of metal, stonework, or stone. It is ideally sloped to lose water back onto the roof.
Copper: a natural weathering metal made use of in steel roofing; typically made use of in 16 or 20 ounce per square foot density (4.87 or 6.10 kg/sq m).
Cornice: the ornamental horizontal molding or forecasted roof overhang.
Counterflashing: created steel sheeting protected on or into a wall, visual, pipe, rooftop unit, or various other surface, to cover and shield the top side of the membrane base blinking or underlying steel blinking as well as associated fasteners from direct exposure to the weather condition.
Training course: (1) the term made use of for every row of shingles of roofing product that develops the roofing, waterproofing, or blinking system; (2) one layer of a collection of materials put on a surface (e.g., a five-course wall flashing is made up of three applications of roof cement with one ply of really felt or fabric sandwiched between each layer of roof concrete).
Protection: the surface area covered by a details quantity of a certain material.
Cricket: an elevated roof substrate or structure, built to draw away water around a smokeshaft, curb, away from a wall surface, expansion joint, or various other projection/penetration. (See Saddle.).
Cross Ventilation: the impact that is offered when air actions with a roof dental caries between the vents.
Cupola: a fairly little roofed framework, generally set on the ridge or height of a primary roof location.
Suppress: (1) an elevated participant used to sustain roof infiltrations, such as skylights, mechanical equipment, hatches, and so on above the level of the roof surface; (2) an elevated roof boundary relatively low in height.
Cure: a process where a material is created to form long-term molecular affiliations by direct exposure to chemicals, warmth, pressure, and/or weathering.
Cure Time: the time needed to result healing. The moment required for a material to reach its desirable long-term physical characteristics.
Cutoff: a long-term detail created to secure and also prevent lateral water movement in an insulation system, and used to isolate sections of a roofing system. (Note: A cutoff is various from a tie-off, which might be a temporary or permanent seal.) (See Tie-Off.).
Cutout: the open portions of a strip shingle in between the tabs.