Gahanna RoofRepair



A.
Absorption: the capacity of a product to accept within its body amounts of gases or liquid, such as wetness.
Accelerated Wear and tear: the process in which materials are revealed to a controlled setting where various exposures such as warmth, water, condensation, or light are altered to amplify their effects, consequently accelerating the weathering procedure. The product's physical homes are determined hereafter procedure as well as compared to the initial buildings of the unexposed product, or to the properties of the material that has actually been exposed to all-natural weathering.
Adhere: to create two surfaces to be held with each other by attachment, normally with asphalt or roofing concretes in built-up roofing and with get in touch with cements in some single-ply membrane layers.
Aggregate: rock, rock, smashed rock, smashed slag, water-worn gravel or marble chips utilized for appearing and/or ballasting a roof system.
Aging: the effect on products that are subjected to an atmosphere for an interval of time.
Alligatoring: the splitting of the appearing bitumen on a built-up roof, creating a pattern of fractures comparable to an alligator's hide; the cracks might or may not extend through the emerging asphalt.
Aluminum: a non-rusting steel in some cases utilized for metal roofing as well as blinking.
Ambient Temperature: the temperature of the air; air temperature level.
Application Rate: the quantity (mass, quantity, or density) of material applied per unit area.
Apron Flashing: a term made use of for a flashing located at the juncture of the top of the sloped roof as well as an upright wall surface or steeper-sloped roof.
Building Roof shingles: tile that supplies a dimensional appearance.
Asphalt: a dark brownish or black material discovered in an all-natural state or, a lot more commonly, left as a residue after vaporizing or otherwise processing petroleum or oil.
Asphalt Solution: a mixture of asphalt bits and also an emulsifying representative such as bentonite clay as well as water. These components are integrated by utilizing a chemical or a clay emulsifying agent and blending or mixing machinery.
Asphalt Felt: an asphalt-saturated and/or an asphalt-coated felt. (See Really Felt.).
Asphalt Roof Concrete: a trowelable combination of solvent-based bitumen, mineral stabilizers, various other fibers and/or fillers. Categorized by ASTM Standard D 2822-91 Asphalt Roof Cement, as well as D 4586-92 Asphalt Roof Concrete, Asbestos-Free, Types I and II.
Attic: the dental caries or open room above the ceiling and also quickly under the roof deck of a steep-sloped roof.
B.
Back-Nailing: (likewise referred to as Blind-Nailing) the technique of nailing the back section of a roofing ply, high roofing device, or various other components in a manner so that the fasteners are covered by the next consecutive ply, or program, and are not subjected to the weather in the ended up roof system.
Ballast: an anchoring material, such as accumulation, or precast concrete pavers, which utilize the pressure of gravity to hold (or assist in holding) single-ply roof membranes in place.
Barrel Vault: a structure account including a spherical account to the roof on the short axis, yet with no angle adjustment on a cut along the long axis.
Base Flashing (membrane layer base flashing): plies or strips of roof membrane product made use of to close-off and/or seal a roof at the roof-to-vertical junctions, such as at a roof-to-wall point. Membrane base blinking covers the edge of the area membrane layer. (Also see Blinking.).
Base Ply: the lowermost ply of roofing in a roof membrane or roof system.
Base Sheet: an impregnated, filled, or covered really felt positioned as the very first ply in some multi-ply built-up and also changed asphalt roof membrane layers.
Batten: (1) cap or cover; (2) in a metal roof: a steel closure set over, or covering the joint in between, nearby steel panels; (3) timber: a strip of wood normally embeded in or over the structural deck, used to raise and/or connect a main roof covering such as ceramic tile; (4) in a membrane layer roof system: a narrow plastic, wood, or steel bar which is made use of to attach or hold the roof membrane layer and/or base blinking in position.
Batten Seam: a steel panel account attached to and formed around a diagonal timber or metal batten.
Asphalt: (1) a class of amorphous, black or dark colored, (solid, semi-solid, or thick) cementitious sub-stances, all-natural or made, made up primarily of high molecular weight hydrocarbons, soluble in carbon disulfide, and also discovered in oil asphalts, coal tars and also pitches, wood tars and asphalts; (2) a generic term utilized to denote any kind of material composed mostly of asphalt, normally asphalt or coal tar.
Blackberry (in some cases referred to as Blueberry or Tar-Boil): a small bubble or sore in the flooding covering of an aggregate-surfaced built-up roof membrane layer.
Blind-Nailing: using nails that are not revealed to the weather condition in the completed roof.
Sore: an enclosed pocket of air, which may be blended with water or solvent vapor, caught in between imper-meable layers of felt or membrane layer, or in between the membrane and also substrate.
Blocking: areas of timber (which might be preservative dealt with) built right into a roof setting up, generally connected over the deck and also listed below the membrane layer or blinking, utilized to stiffen the deck around an opening, work as a stop for insulation, sustain a visual, or to function as a nailer for attachment of the membrane layer and/or flashing.
BOMA: Structure Owners & Managers Organization.
Brake: hand- or power-activated machinery used to create metal.
British Thermal Unit (BTU): the heat needed to elevate the temperature level of one pound of water one level Fahrenheit (joule).
Brooming: an activity executed to facilitate embedment of a ply of roofing product into warm bitumen by utilizing a mop, squeegee, or special carry out to ravel the ply and ensure call with the bitumen or adhe-sive under the ply.
Bend: an upwards, extended tenting displacement of a roof membrane regularly occurring over insulation or deck joints. A clasp might be a sign of movement within the roof setting up.
Building Code: released guidelines and also statutes developed by an acknowledged company prescribing style loads, procedures, and construction information for frameworks. Typically putting on marked jurisdictions (city, county, state, and so on). Building ordinance manage layout, construction, as well as high quality of products, usage and tenancy, area and maintenance of structures and frameworks within the area for which the code has been adopted.
Built-Up Roof Membrane Layer (BUR): a continual, semi-flexible multi-ply roof membrane layer, read here consisting of plies or layers of saturated felts, layered felts, materials, or floor coverings in between which alternative layers of bitumen are applied. Usually, built-up roof membrane layers are surfaced with mineral accumulation and asphalt, a liquid-applied coat-ing, or a granule-surfaced cap sheet.
Bundle: an individual plan of trembles or shingles.
Butt Joint: a joint developed by nearby, different sections of product, such as where two neighboring pieces of insulation abut.
Button Strike: a procedure of indenting 2 or even more thicknesses of steel that are pressed against each other to prevent slippage between the metal.
Butyl: rubber-like material generated by copolymerizing isobutylene with a percentage of isoprene. Butyl may be made in sheets, or mixed with various other elastomeric materials to make sealants as well as adhesives.
Butyl Coating: an elastomeric finish system stemmed from polymerized isobutylene. Butyl coverings are char-acterized by low water vapor leaks in the structure.
Butyl Rubber: an artificial elastomer based on isobutylene and a small amount of isoprene. It is vulcanizable and also includes reduced leaks in the structure to gases as well as water vapor.
Butyl Tape: a sealant tape sometimes made use of between steel roof panel joints and end laps; likewise used to secure other sorts of sheet metal joints, and also in different sealer applications.
C.
Camber: a small convex contour of a surface, such as in a prestressed concrete deck.
Cover: any type of looming or forecasting roof framework, generally over entries or doors. In some cases the severe end is unsupported.
Cant: a beveling of foam at an appropriate angle joint for stamina and also water run off.
Cant Strip: a diagonal or triangular-shaped strip of timber, wood fiber, perlite, or other material made to act as a progressive transitional airplane between the straight surface area of a roof deck or stiff insulation and an upright surface area.
Cap Flashing: typically made up of steel, made use of to cover or protect the top sides of the membrane layer base flashing, wall blinking, or key blinking. (See Flashing and Coping.).
Cap Sheet: a granule-surface covered sheet utilized as the leading ply of some built-up or changed bitumen roof membranes and/or flashing.
Blood vessel Activity: the action that creates motion of fluids by surface area tension when touching 2 adjacent surfaces such as panel side laps.
Caulking: (1) the physical process of sealing a joint or juncture; (2) sealing as well as making weather-tight the joints, seams, or spaces between nearby devices by loaded with a sealer.
Dental caries Wall surface: a wall surface constructed or prepared to provide an air space within the wall (with or without insulating product), in which the internal and also external products are looped by structural framing.
CCF: 100 cubic feet.
Chalk: a grainy residue on the surface of a material.
Chalk Line: a line made on the roof by breaking a tight string or cord dusted with colored chalk. Used for placement functions.
Liquid chalking: the destruction or migration of an active ingredient, in paints, finishings, or other materials.
Smokeshaft: rock, masonry, upraised metal, or a timber mounted structure, containing several flues, forecasting with and above the roof.
Cladding: a product utilized as the exterior wall enclosure of a structure.
Cleat: a metal strip, plate or metal angle item, either continual or specific (" clip"), used to secure two or more components with each other.
Closed-Cut Valley: a technique of valley application in which shingles from one side of the valley extend throughout the valley while shingles from the other side are trimmed roughly 2 inches (51mm) from the valley centerline.
Closure Strip: a steel or durable strip, such as neoprene foam, used to shut openings created by signing up with metal panels or sheets and also flashings.
Coal Tar: a dark brown to black tinted, semi-solid hydrocarbon gotten as residue from the partial evapo-ration or purification of coal tars. Coal tar pitch is additional improved to comply with the adhering to roofing grade requirements:.
Coal Tar Bitumen: an exclusive trade name for Type 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 utilized as the waterproofing representative in dead-level or low-slope built-up roof mem-branes, adapting ASTM Specification D 450, Kind I or Type III.
Coal Tar Waterproofing Pitch: a coal tar utilized as the dampproofing or waterproofing representative in below-grade structures, adapting ASTM Requirements D 450, Type II.
Covered Base Sheet: a really felt that has actually previously been saturated (loaded or fertilized) with asphalt and later covered with harder, much more thick asphalt, which greatly enhances its impermeability to wetness.
Coated Material: fabrics that have been impregnated and/or coated with a plastic-like product in the kind of a remedy, dispersion hot-melt, or powder. The term also applies to products arising from the application of a preformed movie to a textile by means of calendering.
Coated Felt (Sheet): (1) an asphalt-saturated felt that has also pop over to this web-site been coated on both sides with more difficult, a lot more thick "layer" asphalt; (2) a glass fiber felt that has been concurrently fertilized and also covered with asphalt on both sides.
Finish: a layer of product spread over a surface area for security or design. Coatings for SPF are normally liquids, semi-liquids, or mastics; spray, roller, or brush applied; and cured to an elastomeric consistency.
Communication: the level of interior bonding of one compound to itself.
Cold Process Built-Up Roof: a continuous, semi-flexible roof membrane layer, containing a ply or plies of felts, floor coverings or various other support materials that are laminated together with alternative layers of liquid-applied (generally asphalt-solvent based) roof seals or adhesives set up at ambient or a somewhat raised temperature.
Combustible: capable of burning.
Suitable Materials: two or even more compounds that can be mixed, combined, or connected without separating, responding, or impacting the materials negatively.
Structure Shingle: a device of asphalt roof shingles roofing.
Concealed-Nail Method: an approach of asphalt roll roofing application in which all nails are driven into the underlying course of roofing as well as covered by an adhered, overlapping course.
Condensation: the conversion of water vapor or various other gas to liquid state as the temperature level drops or atmos-pheric stress rises. (Also see Humidity.).
Conductor Head: a transition element between a through-wall scupper as well as downspout to collect as well as direct run-off water.
Get in touch with Cements: adhesives made use of to adhere or bond different roofing components. These adhesives adhere mated parts right away on contact of surfaces to which the adhesive has actually been applied.
Contamination: the process of making a product or surface unclean or inadequate for its intended function, generally by the addition or accessory of unwanted foreign compounds.
Coping: the covering item on top of a wall which is revealed to the weather, typically constructed from steel, masonry, or stone. It is ideally sloped to lose water back onto the roof.
Copper: a natural weathering metal utilized in steel roofing; typically used in 16 or 20 ounce per square foot thickness (4.87 or 6.10 kg/sq m).
Cornice: the ornamental straight molding or predicted roof overhang.
Counterflashing: developed steel sheeting secured on or into a wall, visual, pipe, roof system, or various other surface area, to cover and also protect the upper edge of the membrane base flashing or underlying metal flashing and associated fasteners from exposure to the weather.
Program: (1) the term utilized for every row of shingles of roofing material that develops the roofing, waterproofing, or flashing system; (2) one layer of a series of materials applied to a surface (e.g., a five-course wall surface blinking is made up of 3 applications of roof concrete with one ply of really felt or material sandwiched between each layer of roof cement).
Coverage: the surface area covered click for source by a specific quantity of a particular material.
Cricket: an elevated roof substrate or structure, constructed to divert water around a chimney, aesthetic, far from a wall, growth joint, or other projection/penetration. (See Saddle.).
Cross Air flow: the impact that is supplied when air relocations through a roof cavity in between the vents.
Cupola: a fairly tiny roofed structure, typically established on the ridge or peak of a main roof location.
Suppress: (1) a raised member utilized to support roof infiltrations, such as skylights, mechanical devices, hatches, etc. above the degree of the roof surface; (2) an elevated roof boundary relatively reduced in height.
Treatment: a process wherein a product is caused to create permanent molecular affiliations by exposure to chemicals, heat, stress, and/or weathering.
Cure Time: the moment required to impact curing. The time needed for a material to reach its preferable lasting physical qualities.
Cutoff: a permanent information designed to seal and also avoid side water movement in an insulation system, and also used to isolate areas of a roofing system. (Note: A cutoff is various from a tie-off, which might be a short-term or irreversible seal.) (See Tie-Off.).
Cutout: the open parts of a strip tile between the tabs.

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