Glossary of Roofing Terms Commercial Roofing Inc. ASTMAmerican Society for Testing and Measurement is a not for profit organization which provides a forum for producers and consumers to meet on common ground and to write standards for materials, products, systems, and services. Aggregate1 crushed stone, crushed slag or water worn gravel used for surfacing a built up roof 2 any granular mineral material. Alligatoring. The cracking of the surfacing bitumen on a built up roof, producing a pattern of cracks similar to an alligators hide the cracks may or may not extend through the surfacing bitumen. Application Rate. The quantity mass, volume or thickness of material applied per unit area. Area Divider. A raised, double wood member attached to a properly flashed wood base plate that is anchored to the roof deck. It is used to relieve thermal stresses in a roof system where no expansion joints have been provided. See NRCA Construction Details. Game Naruto Shippuden Ultimate Ninja Storm 3 Pc Repack. Asbestos. A group of natural, fibrous, impure silicate materials. Asphalt. The quantity mass, volume or thickness of material applied per unit area. Application Rate. A dark brown to black cementitious material in which the predominating constituents are bitumens, which occur in nature or are obtained in petroleum processing. Dead Level Asphalt A roofing asphalt conforming to the requirements of ASTM Specification D3. Type 1. Flat Asphalt A roofing asphalt conforming to the requirements of ASTM Specification D3. Type 1. 1. Steep Asphalt A roofing asphalt conforming to the requirements of ASTM Specification D3. Type 1. 11. Special Steep Asphalt A roofing asphalt conforming to the requirements of ASTM Specification D3. Type IV. Application Rate. The quantity mass, volume or thickness of material applied per unit area. Asphalt, Air Blown. An asphalt produced by blowing air through molten asphalt at an elevated temperature to raise its softening point and modify other properties. Asphalt Felt. An asphalt saturated felt or an asphalt coated felt. Asphalt Mastic. A mixture of asphaltic material and graded mineral aggregate that can be poured when heated but requires mechanical manipulation to apply when cool. Asphaltenea high molecular weight hydrocarbon fraction precipitated from asphalt by a designated paraffinic naphtha solvent at a specified temperature and solvent asphalt ratio. Cant Strip. A beveled strip used under flashing to modify the angle at the point where the roofing or waterproofing membrane meets any vertical element. NAC Supply has high quality pavement products, equipment, and supplies for sealcoating, striping crack filling, asphalt sealer crack filler. Bvseosdk, javasdk, bvseo2. CLOUD, getAggregateRating, 0ms REVIEWS, PRODUCT bvseomsg The resource to the URL or file is currently unavailable. Note The asphaltene fraction should be identified by the temperature and solvent asphalt ratio used. Backnailing. The practice of blind nailing roofing felts to a substrate in addition to hot mopping to prevent slippage. See Blind Nailing. Base FlashingSee Flashing. Base Ply. The lowermost ply of roofing material in a roof membrane assembly. Base Sheet. A saturated or coated felt placed as the first ply in some multiply built up roof membranes. Bitumen1 a class of amorphous, black or dark colored, solid, semi solid or viscous cementitious substances. Bituminous. Containing or treated with bitumen. Examples bituminous concrete, bituminous felts and fabrics, bituminous pavement. Bituminous Emulsion1 a suspension of minute globules of bituminous material in water or in an aqueous solution 2 a suspension of minute globules of water or an aqueous solution in a liquid bituminous material invert emulsion. Blind Nailing. The practice of nailing the back portion of a roofing ply in a manner that the fasteners are not exposed to the weather in the finished product. Blister. An enclosed pocket of air mixed with water or solvent vapor, trapped between impermeable layers of felt, or between the felt and substrate. Blocking. Wood built into a roofing system above the deck and below the membrane and flashing to stiffen the deck around an opening, act as a stop for insulation, or to serve as a nailer for attachment of the membrane or flashing. Shop our selection of Driveway Repair Sealers and Building Materials in the Building Materials Department at the Home Depot Canada. Have questions About Sakrete Products Sakrete Data Sheets Have Your Answer. Sakrete Tech Data Sheets Include Mixing, Application And Safety Information. Fix driveway cracks. In cold climates, water seeps in and destroys the asphalt when it expands during freezing. If you plan to topcoat your driveway, youll need to. Bond. The adhesive and cohesive forces holding two roofing components in intimate contact. Breaking Strength. The amount of tension required to cause material or a system to give way or collapse. It is calculated by measuring the amount of force required to fracture a uniform sized sample. Brooming. Embedding a ply of roofing material by using a broom to smooth out the ply and ensure contact with the adhesive under the ply. British Thermal Unit BTUThe heat energy required to raise the temperature of 1 pound of water 1 degree Fahrenheit. Built Up Roof Membranes BURA continuous, semi flexible roof membrane assembly, consisting of plies of saturated felts, coated felts, fabrics or mats between which alternate layers of bitumen are applied, generally surface with mineral aggregate, bituminous materials, or a granule surfaced roofing sheet. Cant Strip. A beveled strip used under flashing to modify the angle at the point where the roofing or waterproofing membrane meets any vertical element. Cap FlashingSee Flashing. Capillarity. The action by which the surface of a liquid where it is in contact with a solid is elevated or depressed, depending upon the relative attraction of the molecules of the liquid for each other and for those of the solid. Cap Sheet. A granule surfaced coated sheet used as the top ply of a built up roof membrane or flashing. Coal Tar. A dark brown to black, semi solid hydrocarbon obtained as residue from the partial evaporation or distillation of coal. Coated Sheet Felt1 an asphalt felt that has been coated on both sides with harder, more viscous asphalt 2 a glass fiber felt that has been simultaneously impregnated and coated with asphalt on both sides. Cold Processing Roofing. A continuous, semi flexible roof membrane, consisting of plies of felts, mats, or fabrics Roofing that are laminated on a roof with alternate layers of cold applied roof cement and surfaced with a cold applied coating. Condensation. The conversion of water vapor or other gas to liquid as the temperature drops or the atmospheric pressure rises. See Dew Point. Coping. The covering piece on top of a wall exposed to the weather, usually sloped to shed water. Citroen C3 Pluriel Service Manual. Counterflashing. Formed metal or elastomeric sheeting secured on or into a wall, curb, pipe, rooftop unit or other surface, to cover and protect the upper edge of a base flashing and its associated fasteners. Course1 the term used for each application of material that forms the waterproofing system or the flashing 2 one layer of a series of material applied to a surface i. Coverage. The surface area continuously covered by a specific quantity of a particular roofing material. Crack. A separation or fracture occurring in a roof membrane or roof deck, generally caused by thermal induced stress or substrate movement. Creep. The permanent deformation of a roofing material or roof system caused by the movement of the roof membrane that results from continuous thermal stress or loading. Cricket. A relatively small, elevated area of a roof constructed to divert water. Cutback. Solvent thinned bitumen used in cold process roofing adhesives, flashing cements and roof coatings. Cutoff. A detail designed to prevent lateral water movement into the insulation where the membrane terminates at the end of a days work, or used to isolate sections of the roofing system. It is usually removed before the continuation of the work. Dampproofing. Treatment of a surface or structure to resist the passage of water in the absence of hydrostatic pressure. Dead Level. Absolutely horizontal, or zero slope. See Slope. Dead Level AsphaltSee Asphalt.