1、Designation:D3805/D3805M97(Reapproved 2009)Standard Guide forApplication of Aluminum-Pigmented Asphalt Roof Coatings1This standard is issued under the fixed designation D3805/D3805M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the
2、 year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This guide covers the application methods for Specifi-cation D2824 Aluminum-Pigmented Asphalt Roof Coatings,Non-Fi
3、bered(Type I),Asbestos Fibered(Type II),and Fiberedwithout Asbestos(Type III),for application on asphalt built-uproof membranes,modified bitumen roof membranes,bitumi-nous base flashings,concrete surfaces,metal surfaces,emul-sion coatings,and solvent-based coatings.This guide does notapply to the se
4、lection of a specific aluminum-pigmentedasphalt roof coating type for use on specific projects.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used indepen
5、dently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and hea
6、lth practices and determine the applica-bility of regulatory limitations prior to use.Specific precau-tionary statements are given in Section 4.2.Referenced Documents2.1 ASTM Standards:2D2824 Specification forAluminum-PigmentedAsphalt RoofCoatings,Nonfibered,Asbestos Fibered,and Fiberedwithout Asbes
7、tosD4263 Test Method for Indicating Moisture in Concrete bythe Plastic Sheet Method2.2 Other Documents:Asphalt Roofing Manufacturers Association/Roof CoatingsManufacturers Association,Guidelines for Evaluating andPreparing Modified Bitumen Roofing for the Applicationof Surface Coatings33.Significanc
8、e and Use3.1 Asphalt-based,solvent-type,fibered or nonfibered,aluminum-pigmented roof coatings are used as a protectivecoating for solar reflection to prolong the life of roofingmaterials or where decorative qualities are desired.3.2 Suitable application of aluminum-pigmented asphaltroof coatings is
9、 an important factor in achieving a successfullong-term coating.Suitable application is,in part,dependentupon appropriate specifications to guide the work.This guidecan be useful in facilitating development of an appropriatespecification for surface preparation and application of the roofcoating.3.3
10、 Designers/specifiers of coatings may use this guide inpreparing the application portion of their specification.Con-tractors working directly for the building owner,may also usethis guide.3.4 This guide is not all-inclusive.Manufacturers applica-tion instructions should be consulted and geographical
11、“areapractices”considered.Consult membrane manufacturer andcoating manufacturer for acceptability of procedures andproducts.4.Storage4.1 The container should be tightly sealed to prevent solventevaporation and to keep out moisture.The coatings should notbe stored at temperatures above 50C 120F.(Warn
12、ingWhen re-sealing a container,exercise caution to avoid trappingor incorporating water into the container.Water can react withaluminum pigment producing hydrogen gas,a potential explo-sion hazard.)5.Equipment for Application of Coating5.1 BrushAthree-knot or four-knot roofers brush or othersuitable
13、 brush.5.2 RollerA medium nap roller cover,suitable for usewith asphalt-based,solvent-type coatings.1This guide is under the jurisdiction of ASTM Committee D08 on Roofing andWaterproofing and is the direct responsibility of Subcommittee D08.05 on Solvent-Bearing Bituminous Compounds for Roofing and
14、Waterproofing.Current edition approved July 1,2009.Published July 2009.Originally approvedin 1979.Last previous edition approved in 2003 as D3805 97(2003)1.DOI:10.1520/D3805_D3805M-97R09.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm
15、.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from Roof Coatings Manufacturers Association(RCMA),CenterPark,Suite 404,4041 Powder Mill Road,Calverton,MD 20705.Copyright ASTM International,100 Barr Harbor Drive,PO B
16、ox C700,West Conshohocken,PA 19428-2959.United States1 5.3 SprayEquipment capable of spraying coating in acontrolled manner to achieve desired application rate.6.Mixing of Coating6.1 The aluminum pigment and filler settle out duringstorage.Thorough mixing of coating is necessary to redispersethese components prior to use.Mechanically mix the coatinguntil homogeneous.Periodic mixing of the coating duringapplication may be needed.Coating should not be thinned orheated.7.Weather Considerations7.1 C
