1、Designation: C 727 01 (Reapproved 2007)e1Standard Practice forInstallation and Use of Reflective Insulation in BuildingConstructions1This standard is issued under the fixed designation C 727; the number immediately following the designation indicates the year oforiginal adoption or, in the case of r
2、evision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.e1NOTESections 2, 3.2.5, 5.1, 7.2, and footnotes 4 and 5 were editorially corrected in April 2007.1. Scope1.
3、1 This practice has been prepared for use by the designer,specifier, and installer of reflective insulation for use inbuilding construction. 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
4、.1or less such as metallic foil or metallic deposits unmounted ormounted on substrates and facing enclosed air spaces. Thereflective insulation covered by this practice must meet therequirements of Specification C 1224.1.2 This practice covers the installation process from pre-installation inspectio
5、n through post-installation procedure. Itdoes not cover the production of the insulation materials.1.3 This practice is not intended to replace the manufactur-ers installation instructions, but shall be used in conjunctionwith such instructions. This practice is not intended to super-cede local, sta
6、te, or federal codes.1.4 This practice assumes that the installer possesses a goodworking knowledge of the applicable codes and regulations,safety practices, tools, equipment, and methods necessary forthe installation of thermal insulation materials. It also assumesthat the installer understands the
7、 fundamentals of constructionthat affect the installation of insulation.1.5 The values given in inch-pound units are to be regardedas standard. The SI units in parentheses are for informationonly.1.6 This standard does not purport to address all of thesafety concerns, if any, associated with its use
8、. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C 168 Terminology Relating to Thermal InsulationC 1224 Specification for Ref
9、lective Insulation for BuildingApplicationsE 96/E 96M Test Methods for Water Vapor Transmission ofMaterials2.2 NFPA Standards:NFPA 31 Standard for the Installation of Oil BurningEquipment3NFPA 54 National Fuel Gas Code3NFPA 211 Standard for Chimneys, Fireplaces, and Vents32.3 Code of Federal Regulat
10、ions:16 CFR 460 Federal Trade Commission Trade RegulationRule: Labeling and Advertising of Home Insulation43. Terminology3.1 DefinitionsFor definitions of terms used in this prac-tice refer to Terminology C 1683.2 Descriptions of Terms Specific to This Standard:3.2.1 applicatorthe person or persons
11、who apply thermalinsulation materials in buildings whether or not 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 enti
12、ty owning the building to be insulated whethersuch ownership is by virtue of deed, contract, or any otherinstrument for acquiring legal title under the laws of the statein which the building is located.1This practice is under the jurisdiction of ASTM Committee C16 on ThermalInsulation and is the dir
13、ect responsibility of Subcommittee C16.21 on ReflectiveInsulation.Current edition approved March 1, 2007. Published April 2007. Originallyapproved in 1972. Last previous edition approved 2001 as C 727 01.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Se
14、rvice 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 BatterymarchPark, Quincy, MA 02169-7471, http:/www.nfpa.org.4Federal Register, Vol 70, No. 103
15、. Available from Department of Housing andUrban Development, 451 7th St. N.W., Washington, D.C. 20410.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.2.4 reflective insulation systemthermal insulation con-sisting of one or more low
16、 emittance surfaces, bounding one ormore enclosed air spaces.3.2.5 vapor retarderany material (membrane or paint)that has a water vapor permeance (perm) rating of 57 ng/(Pasm2) (1 perm) or less, in accordance with Test MethodsE 96/E 96M, using the desiccant method.4. Significance and Use4.1 This pra
17、ctice recognizes that effectiveness, safety, anddurability of reflective insulation depends not only on thequality of the insulating materials, but also on their properinstallation.4.2 Improper installation of insulation can reduce its ther-mal effectiveness, cause fire risks and other unsafe condit
18、ions,and promote deterioration of the structure in which it isinstalled. Specific hazards that can result from improperinstallation include fires caused by (1) heat build-up in recessedlighting fixtures, (2) deterioration or failure of electrical wiringcomponents, and heat build-up resulting from ov
19、ercurrentprotection devices incorrectly matched to wiring; or (3) dete-rioration in wood structures and paint failure due to moistureaccumulation.4.3 This practice provides recommendations for the instal-lation of reflective insulation in a safe and effective manner.Actual conditions in existing bui
20、ldings may vary greatly and insome cases additional care should be taken to ensure safe andeffective installation.4.4 This practice presents requirements that are general innature and considered practical. They are not intended asspecific recommendations. The user should consult manufac-turer for re
21、commended applications.5. Safety Precautions5.1 The applicator shall wear proper clothing and equip-ment. Protective clothing, gloves, and eye protection should beworn if there is any doubt about the effects of the insulation.6. Pre-Installation Inspection and Preparation6.1 In areas where insulatio
22、n is to be installed, componentsof the electrical system shall be in good condition. If theelectrical system is found to be faulty, proper inspection andrepair shall be accomplished. (See Note 1.)6.2 Inspect the roof, walls, ceilings, and floors to identifyareas where a previous or existing moisture
23、 problem hascaused paint peeling, warpage, stain, visible fungus growth,rotting, or other structural damage.6.2.1 Do not install insulation in such areas until the ownerhas been informed, and these conditions have been correctedand their source(s) eliminated.6.3 Provide proper attic ventilation and
24、the use of vaporretarders if required prior to installation in accordance withbuilding requirements or practices. Install insulation in such away as to ensure free movement of air through all vents.NOTE 1The CPSC Product Safety Fact Sheet No. 185has identifiedthe following signs of potential electri
25、cal deficiencies: lights dimming,fuses blowing, circuit breakers tripping frequently, electrical sparks andglowing from receptacles, lights flickering, and coverplates on switchesand outlets that are warm or hot to the touch.6.4 In the areas where insulation is to be installed, theapplicator shall l
26、ocate and plan for subsequent blocking aroundrecessed lighting fixtures, motors, fans, blowers, heaters, flues,chimneys, and other heat-producing electrical or mechanicaldevices.6.4.1 Securely fasten blocking, such as wood, metal, orunfaced mineral wool batts, around all heat-producing devicesto per
27、manently maintain the clearances specified in 6.4.2,6.4.3, or the exception in 6.4.4. Install all required blocking atleast as high as the height of the finished insulation and in amanner that ensures all devices that require maintenance orservicing remain accessible after the insulation is installe
28、d.6.4.2 Install blocking to provide a minimum three inch (76mm) clearance around all sides of recessed lighting fixtures,unless such fixtures are approved for installation in directcontact with insulation, including fixture wiring compartmentsand ballasts and other heat-producing devices not covered
29、 withthermal insulation.6.4.3 The open area above heat producing devices must notbe covered, unless they are specifically approved devices foroperation when covered with thermal insulation.6.4.4 Install blocking around gas-fired appliances to providethe minimum clearances specified in NFPA-54. Insta
30、ll blockingaround oil-fired appliances to provide the minimum clearancesspecified in NFPA-31. Install blocking around masonry chim-neys or masonry enclosing a flue to provide a minimum 2-in.(50-mm) clearance from the outside face of the masonry.Install blocking around vents, chimney, and vent connec
31、torsand chimneys other than masonry chimneys to provide theminimum clearances specified in NFPA-211.7. Installation Guidelines7.1 The insulation material shall be handled in accordancewith manufacturers instructions and should be kept free ofextraneous materials. The materials should be kept dry and
32、should not be in contact with the ground or other sources ofwater.7.2 Manufacturers installation instructions and local codesshall be followed to ensure proper installation. The thermalperformance of reflective insulation is based on the mainte-nance of a totally enclosed air space adjacent to the l
33、owemittance surface(s).7.3 The thermal performance of a reflective insulationdepends upon adherence to manufacturers spacing recommen-dations. When instructions for insulating undersize and over-size cavities is not provided the manufacturer shall be con-sulted.7.4 Damaged areas will result in loss
34、of performance andshall be repaired with low emittance material(s). Minor dam-age such as rips, tears, or punctures shall be repaired with lowemittance materials while larger damaged areas shall bereplaced with new reflective insulation. (See Note 2.)7.5 The thermal performance of a reflective insul
35、ation maybe reduced by a corrosive environment. Reflective insulations5CPSC “Guide to Home Wiring Hazards”, available from the Consumer ProductSafety Commission, 1111 Eighteenth St. N.W., Washington, D.C. 20207.C 727 01 (2007)e12should not be installed in environments that are corrosive to thelow em
36、ittance surface.7.6 The thermal performance of a reflective insulation maybe adversely affected by materials such as dust, oil, or paint onthe surfaces. These materials shall be removed during instal-lation taking care not to damage the insulation.7.7 Moisture will affect the thermal performance of
37、thereflective insulation as long as it remains on the surface.Insulation shall be free of moisture at time of installation.7.8 It is important that reflective insulation be fitted closelyaround all non-heat producing components and taped toeliminate gaps or voids through which air, dust, or water va
38、pormight pass.7.9 Post-InstallationThe installer must provide a signedand dated statement describing the reflective insulation in-stalled, the area insulated, and the R-value of the installedsystem. (See Trade Regulation Rule 16 CFR 460.)NOTE 2Large damaged areas are defined as those areas greater t
39、han 1ft2.8. Keywords8.1 building constructions; enclosed air space; insulationsystem; low emittance; metallic foil; reflective insulation;thermal insulating materialsASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin thi
40、s standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be
41、 reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresp
42、onsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, We
43、st Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).C 727 01 (2007)e13
