1、Designation:C72712Standard Practice forInstallation and Use of Reflective Insulation in BuildingConstructions1This standard is issued under the fixed designation C727;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last r
2、evision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice has been prepared for use by the designer,specifier,and installer of reflective insulation for use inbuilding const
3、ruction.The scope is limited to recommenda-tions relative to the use and installation of thermal insulationconsisting of one or more surfaces,having an emittance of 0.1or less such as metallic foil or metallic deposits unmounted ormounted on substrates and facing enclosed air spaces.Thereflective in
4、sulation covered by this practice must meet therequirements of Specification C1224.1.2 This practice covers the installation process from pre-installation inspection through post-installation procedure.Itdoes not cover the production of the insulation materials.1.3 This practice is not intended to r
5、eplace the manufactur-ers installation instructions,but shall be used in conjunctionwith such instructions.This practice is not intended to super-cede local,state,or federal codes.1.4 This practice assumes that the installer possesses a goodworking knowledge of the applicable codes and regulations,s
6、afety practices,tools,equipment,and methods necessary forthe installation of thermal insulation materials.It also assumesthat the installer understands the fundamentals of constructionthat affect the installation of insulation.1.5 The values stated in inch-pound units are to be regardedas standard.T
7、he values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.6 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
8、establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2C168 Terminology Relating to Thermal InsulationC1224 Specification for Reflective Insulation for BuildingApplicationsE96/E96M Test Meth
9、ods for Water Vapor Transmission ofMaterials2.2 NFPA Standards:NFPA 31 Standard for the Installation of Oil Burning Equip-ment3NFPA 54 National Fuel Gas Code3NFPA 211 Standard for Chimneys,Fireplaces,and Vents32.3 Code of Federal Regulations:16 CFR 460 Federal Trade Commission Trade RegulationRule:L
10、abeling and Advertising of Home Insulation43.Terminology3.1 DefinitionsFor definitions of terms used in this prac-tice refer to Terminology C1683.2 Descriptions of Terms Specific to This Standard:3.2.1 applicatorthe person or persons who apply thermalinsulation materials in buildings whether or not
11、such person orpersons have contracted with the owner to perform the work.3.2.2 conditioned spaceany space in a building that isserved by a heating or cooling system.3.2.3 ownerthe person,partnership,corporation,agency,or other entity owning the building to be insulated whethersuch ownership is by vi
12、rtue of deed,contract,or any otherinstrument for acquiring legal title under the laws of the statein which the building is located.3.2.4 reflective insulation systemthermal insulation con-sisting of one or more low emittance surfaces,bounding one ormore enclosed air spaces.1This practice is under th
13、e jurisdiction of ASTM Committee C16 on ThermalInsulationand is the direct responsibility of Subcommittee C16.21 on ReflectiveInsulation.Current edition approved May 1,2012.Published June 2012.Originallyapproved in 1972.Last previous edition approved 2007 as C727 01(2007)1.DOI:10.1520/C0727-12.2For
14、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.3Available from National Fire Protection Association(NFPA),1 Batterymar
15、chPark,Quincy,MA 02169-7471,http:/www.nfpa.org.4Federal Register,Vol 70,No.103.Available from Department of Housing andUrban Development,451 7th St.N.W.,Washington,D.C.20410.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.2.5 vapor reta
16、rderany material(membrane or paint)thathas a water vapor permeance(perm)rating of 57 ng/(Pasm2)(1 perm)or less,in accordance with Test Methods E96/E96M,using the desiccant method.4.Significance and Use4.1 This practice recognizes that effectiveness,safety,anddurability of reflective insulation depends not only on thequality of the insulating materials,but also on proper installa-tion.4.2 There is potential for reduced thermal effectiveness,firerisks and structural deterioration when the insulati
