1、Designation: D 1079 09Standard Terminology Relating toRoofing and Waterproofing1This standard is issued under the fixed designation D 1079; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in pare
2、ntheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Referenced Documents1.1 ASTM Standards:2C33 Specification for Concrete AggregatesC 591 Specification for Unfaced Preformed Rigid CellularPolyisocyanurate Ther
3、mal InsulationC 1289 Specification for Faced Rigid Cellular Polyisocya-nurate Thermal Insulation BoardD 312 Specification for Asphalt Used in RoofingD 450 Specification for Coal-Tar Pitch Used in Roofing,Dampproofing, and WaterproofingD 698 Test Methods for Laboratory Compaction Character-istics of
4、Soil Using Standard Effort (12 400 ft-lbf/ft3(600kN-m/m3)D 1557 Test Methods for Laboratory Compaction Charac-teristics of Soil Using Modified Effort (56,000 ft-lbf/ft3(2,700 kN-m/m3)D 2822 Specification for Asphalt Roof Cement, Asbestos-ContainingD 4022 Specification for Coal Tar Roof Cement, Asbes
5、tosContainingD 4586 Specification for Asphalt Roof Cement, Asbestos-FreeD 6136 Test Method for Kerosine Number of Unsaturated(Dry) Felt by Vacuum Method2. Terminology2.1 Definitions:accelerated weathering, vthe exposure of a specimen to aspecified test environment for a specified time with the inten
6、tof producing, in a shorter time period, effects similar toactual weathering.aggregate(1) crushed stone, crushed slag, or water-worngravel used for surfacing a built-up roof;(2) any granular mineral material.alligatoringthe cracking of the surfacing bitumen on abuilt-up roof, producing a pattern of
7、cracks similar to analligators hide; the cracks may not extend through thesurfacing bitumen.anionic emulsionan emulsion in which the emulsifyingsystem establishes a predominance of negative charges onthe discontinuous phase.application ratethe quantity (mass, volume or thickness) ofmaterial applied
8、per unit area.artificial weathering, vexposure to conditions, which maybe cyclic, involving temperature, relative humidity, radiantenergy, and/or any other conditions or pollutants found in theatmosphere in various geographical areas, which may accel-erate changes in properties of materials over tho
9、se of naturalweather conditions.asbestosa group of natural fibrous impure silicate materials.asphalta dark brown to black cementitious material in whichthe predominating constituents are bitumens that occur innature or are obtained in petroleum processing.asphalt, air blownan asphalt produced by blo
10、wing airthrough molten asphalt at an elevated temperature to raise itssoftening point and modify other properties.asphaltenea high molecular weight hydrocarbon fractionprecipitated from asphalt by a designated paraffinic naphthasolvent at a specified temperature and solvent-asphalt ratio.DISCUSSIONT
11、he asphaltene fraction should be identified by thetemperature and solvent-asphalt ratio used.asphalt feltan asphalt-saturated felt.asphalt, steam blownan asphalt produced by blowing steamthrough molten asphalt to modify its properties.asphaltitea natural asphalt found below ground level.asphalt mast
12、ica mixture of asphaltic material and gradedmineral aggregate that can be poured when heated, butrequires mechanical manipulation to apply.asphalt rock (rock asphalt)a naturally occurring rockformation, usually limestone or sandstone, containingthroughout its mass a minor amount of asphalt.asphalt r
13、oof cement, na trowelable mixture of asphalt,solvents, mineral stabilizers, fillers or fibers, or both. SeeSpecifications D 2822 and D 4586.asphalt roof cement, nsee flashing cement.backnailingthe practice of blind-nailing roofing felts to asubstrate in addition to hot-mopping to prevent slippage.1T
14、his terminology is under the jurisdiction of ASTM Committee D08 onRoofing and Waterproofing and is the direct responsibility of Subcommittee D08.01on Nomenclature, Definitions and Editorial.Current edition approved July 1, 2009. Published August 2009. Originallyapproved in 1950. Last previous editio
15、n approved in 2008 as D 1079 08a.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM Internationa
16、l, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.bald roofSee smooth-surfaced roof.base plythe bottom or first ply in a built-up roofingmembrane when additional plies are to be subsequentlyinstalled.base sheeta product intended to be used as a base ply in abuilt
17、-up roofing system.bitumen(1) a class of amorphous, black or dark-colored,(solid, semi-solid, or viscous) cementitious substances, natu-ral or manufactured, composed principally of high molecularweight hydrocarbons, soluble in carbon disulfide, and foundin asphalts, tars, pitches, and asphaltites;(2
18、) a generic term used to denote any material composedprincipally of bitumen.bitumen trapSee pitch pocket.bituminized, adjimpregnated with bitumen. Example: bitu-minized fiber pipe.bituminous, adjcontaining or treated with bitumen. Ex-amples: bituminous concrete, bituminous felts and fabrics,bitumino
19、us pavement.bituminous emulsion(1) a suspension of minute globules ofbituminous material in water or in an aqueous solution;(2) a suspension of minute globules of water or of anaqueous solution in a liquid bituminous material (invertemulsion).bituminous grouta mixture of bituminous material and fine
20、sand that will flow into place without mechanical manipu-lation when heated.blast-furnace slagthe nonmetallic product, consisting es-sentially of silicates and alumino-silicates of calcium andother bases, that is developed in a molten condition simul-taneously with iron in a blast furnace.blind nail
21、ingthe use of nails that are not exposed to theweather in the finished roofing.blister(1) a raised portion of a roofing membrane resultingfrom local internal pressure;(2) the similarly formed protuberances in coated preparedroofing.blocking(1) wood built into a roofing system above the deckand below
22、 the membrane and flashing to (a) stiffen the deckaround an opening, (b) act as a stop for insulation, (c) serveas a nailer for attachment of the membrane or flashing.(2) wood cross-members installed between rafters or joiststo provide support at cross-joints between deck panels.(3) cohesion or adhe
23、sion between similar or dissimilarmaterials in roll or sheet form that may interfere with thesatisfactory and efficient use of the material.blueberrySee strawberry.bondthe adhesive and cohesive forces holding two roofingcomponents in intimate contact.broomingembedding a ply by using a broom to smoot
24、h itout and ensure contact with the adhesive under the ply.built-up roofinga continuous, semiflexible membrane con-sisting of plies of saturated felts, coated felts, fabrics or matsassembled in place with alternate layers of bitumen, andsurfaced with mineral aggregate, bituminous materials, or agran
25、ule surfaced sheet (abbreviation, BUR).cant stripa beveled strip used under flashings to modify theangle at the point where the roofing or waterproofingmembrane meets any vertical element.cap flashingSee flashing.cap sheeta granule-surfaced coated felt used as the top plyof a built-up roofing membra
26、ne.cationic emulsionan emulsion in which the emulsifyingsystem establishes a predominance of positive charges on thediscontinuous phase.caulkinga composition of vehicle and pigment, used atambient temperatures for filling joints, that remains plasticfor an extended time after application.channel mop
27、pingSee mopping, (3) strip.coal tara dark brown to black cementitious material pro-duced by the destructive distillation of coal.coal tar roof cement, na trowelable mixture of processedcoal tar base, solvents, mineral fillers or fibers, or both. SeeSpecification D 4022.coal-tar felta felt that has b
28、een saturated with refined coaltar.coal-tar pitcha dark brown to black, solid cementitiousmaterial obtained as residue in the partial evaporation ordistillation of coal tar.coated sheet (or felt)(1) an asphalt felt that has been coatedon both sides with harder, more viscous asphalt;(2) a glass fiber
29、 felt that has been simultaneously impreg-nated and coated with asphalt on both sides.coke-oven tarSee coal tar.cold-process roofinga continuous, semiflexible membraneconsisting of plies of felts, mats, or fabrics laminated on aroof with alternate layers of roof cement and surfaced witha cold-applie
30、d coating.concealed membrane waterproofing, nalso referred to asstructural slab waterproofing; (1) for below grade: refersto a form of waterproofing where the membrane is applied tothe mud mat and later covered with a topping, usuallyconcrete, to act as a wearing layer or course, and (2) forelevated
31、 structural concrete deck: applied over the structuralsurface and covered/concealed by other components such asa topping slab, pavers, ballast, pavement, and plantings.condensationthe conversion of water vapor or other gas toliquid as the temperature drops or atmospheric pressuresrises. (See also de
32、w point).conditioning, vthe storage of a specimen under specifiedtemperature, humidity, etc., for a specified time prior totesting.conductance, thermalthe thermal transmission in unit timethrough unit area of a particular body or assembly havingdefined surfaces, when unit average temperature differe
33、nceis established between the surfaces. C = W/m2K (C = Btu/hft2F).conductivity, thermalthe thermal transmission, by conduc-tion only, in unit time through unit area between twoisothermal surfaces of an infinite slab of a homogeneousmaterial of unit thickness, in a direction perpendicular to thesurfa
34、ce, when unit temperature difference is establishedD1079092between the surfaces. k = W/mK (k = Btuin./hft2F).cone penetrationSee penetration.copinga covering on top of a wall exposed to the weather,usually sloped to carry off water.counterflashingformed metal or elastomeric sheeting se-cured on or i
35、nto a wall, curb, pipe, roof-top unit, or othersurface, to cover and protect the upper edge of a baseflashing and its associated fasteners.coveragethe surface area to be continuously covered by aspecific quantity of a particular material.creepthe time-dependent part of a strain resulting fromstress.
36、cricket, na construction to divert water around or away froma chimney, curb, wall, expansion joint, or other penetration.(See saddle).crushed stonethe product resulting from the artificial crush-ing of rocks, boulders, or large cobblestones, substantiallyall faces of which have resulted from the cru
37、shing operation.cutbacksolvent-thinned bitumen used in cold-process roof-ing adhesives, flashing cements, and roof coatings.cutoffa detail designed to prevent lateral water movementinto the insulation where the membrane terminates at the endof a days work, or used to isolate sections of the roofings
38、ystem. It is usually removed before the continuation of thework.dampproofingtreatment of a surface or structure to resist thepassage of water in the absence of hydrostatic pressure.dead levelabsolutely horizontal, or zero slope (see alsoslope).dead level asphalta roofing asphalt conforming to thereq
39、uirements of Specification D 312, Type I.dead level roofinga roofing system applied on a surface witha 0 to 2 % incline.deckthe structural surface to which the roofing or water-proofing system (including insulation) is applied.direction changea change in the orientation of the principaldimension or
40、of the support of adjoining units of the roofingsystem.double pourto apply two layers of aggregate and bitumen toa built-up roof.dry felt(1) see felt;(2) a felt which has not been saturated with bitumen.edge strippingapplication of felt strips cut to narrowerwidths than the normal felt-roll width to
41、 cover a jointbetween flashing and built-up roofing.edge ventingthe practice of providing regularly spacedprotected openings at a roof perimeter to relieve water vaporpressure in the insulation.elastomera macromolecular material that returns rapidly toits approximate initial dimensions and shape aft
42、er substantialdeformation by a weak stress and subsequent release of thatstress.embedment(1) the process of pressing a felt, aggregate,fabric, mat, or panel uniformly and completely into hotbitumen or adhesive to ensure intimate contact at all points;(2) the process of pressing granules into coating
43、 in themanufacture of factory-prepared roofing, such as shingles.emulsionan intimate mixture of bitumen and water, withuniform dispersion of the bitumen or water globules, usuallystabilized by an emulsifying agent or system.envelopea continuous membrane edge seal formed at theperimeter and at penetr
44、ations by folding the base sheet or plyover the plies above and securing it to the top of themembrane. The envelope prevents bitumen seepage from theedge of the membrane.equilibrium moisture content( 1) the moisture content of amaterial stabilized at a given temperature and relativehumidity, express
45、ed as percent moisture by weight;(2) the typical moisture content of a material in any givengeographical area.equiviscous temperature (EVT), nthe temperature at whicha bitumen attains the proper viscosity for built-up membraneapplication. EVT may or may not be applicable to polymermodified bituminou
46、s sheet materials. (See EVT for asphaltand EVT for coal tar).DISCUSSIONIn England, EVT is the temperature corresponding to astandard efflux time from a road tar viscometer.equiviscous temperature for asphalt, nthe equiviscoustemperature (EVT) for roofing asphalt (Specification D 312,Type I, II, III,
47、 or IV) is as follows: (1) mop applicationthetemperature at which the asphalts apparent viscosity is 125cP. ( 2) mechanical spreader applicationthe temperature atwhich the asphalts apparent viscosity is 75 cP. See equivis-cous temperature and EVT application range.equiviscous temperature for coal ta
48、rthe equiviscous tem-perature (EVT) for roofing coal tar (Specification D 450,Type I or III) is the temperature at which the coal tarsapparent viscosity is 25 cP. See equiviscous temperatureand EVT application range.EVT application range, nthe bitumen application tempera-ture range. The range is fro
49、m 25F below the EVT to 25Fabove the EVT (50F span). The temperature is measured inthe mop cart or mechanical spreader just prior to theapplication of bitumen to the substrate.expansion jointa structural separation between two buildingelements that allows free movement between the elementswithout damage to the roofing or waterproofing system.exposure(1) the transverse dimension of a roofing elementnot overlapped by an adjacent element in any roofingsystem. The exposure of any ply
