| A roof system which uses asphalt materials as a covering.
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| A building and roofing felt sheet impregnated with a bituminous waterproofing material.
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| Saturated roofing felt either in large rolls or cut into composition shingles, impregnated with aggregate particles applied to a roof surfaces.
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| Subgrade, improved as a working platform (1) by the incorporation of granular materials or stabilizers such as asphalt, lime, or portland cement, prepared to support a structure or a pavement system, or (2) any course or courses of select or improved material placed on the subgrade soil below the pavement structure; subgrade improvement does not affect the design thickness of the pavement structure.
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| A flat layer of asphalt.
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| A brown to black bituminous pitch occurring naturally or made from a residue of petroleum refining; also called asphaltum; used for pavements, roofing, and as a waterproofing cement; asphalt comes in a wide range of viscosities and softening points, from about l35° F (used on dead level roofs) to 210° F. or more (to be used on special steep roofs); asphalt is a constituent in varying proportions of most crude petroleums; see Bitumen.
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| The high molecular weight hydrocarbon fraction precipitated from asphalt by a designated paraffinic naphtha solvent at a specified solvent-asphalt ratio.
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| High quality, thoroughly controlled hot mixture of asphalt cement and well-graded, high quality aggregate, thoroughly compacted into a uniform dense mass.
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| 1.A liquid form of asphalt which can contain other materials such as aluminum flakes and mineral pigments, generally used for creating a water-resistant coating. 2. A liquid product used for weatherproofing.
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| A moisture-resistant sheet material, available in several different thicknesses, usually consisting of a heavy paper that has been impregnated with asphalt.
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| Device which draws sample of air through it to measure humidity.
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| American Society of Sanitary Engineers.
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| 1. Something put together from parts. 2. A random, unordered assemblage is called a gathering. 3. An ordered assemblage is a system.
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| An outdoor place for the gathering of a group of people exiting from a building or for an cational, sporting, or entertainment event.
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| A room for the gathering of a group of people, such as an auditorium, gymnasium, restaurant, or meeting room.
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| The value of a parcel of real property, usually a fraction of the market value, used for the purpose of determining the amount of property tax.
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| A possession or resource having value.
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| Transfer of the rights and duties under a contract from one party to another.
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| 1957 E Street, NW, Washington, DC 20006, (202) 393-2040.
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| Three Gateway Center, #2350, Pittsburgh, Pennsylvania 15222, (412) 281-6323.
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| American Society for Testing and Materials.
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| Materials specifications issued by the American Society of Testing Materials.
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| Fabric, rubber or plastic strips attached to the molding that is attached to one of a pair of doors or casement windows to cover the joint between the two stiles.
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| An interior molding attached to one of a pair of doors or window sash in order to prevent swinging through; also used with sliding doors to insure tighter fitting where doors meet.
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| Not symmetrical; asymmetry.
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| Various devices used for exercising or the playing of sporting events.
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| Galvanic corrosion that occurs between two adjoining dissimilar metals in a humid atmospheric condition.
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| The pressure that atmospheric gases in air exert upon the earth; measured in pounds per square inch or grams per square centimeter; one standard atmosphere equals 14.69 psi of pressure and measures 760 mm (29.92 inches) in a barometer of mercury.
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| A simple mechanical device consisting essentially of a check valve in the supply line and a valve member (on the discharge side of the check valve) opening to the atmosphere when the pressure in the line drops to atmospheric; also called a siphon breaker.
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| The smallest particle of a chemical element; considered as a source of vast potential energy.
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