1、Designation: C1320 10Standard Practice forInstallation of Mineral Fiber Batt and Blanket ThermalInsulation for Light Frame Construction1This standard is issued under the fixed designation C1320; the number immediately following the designation indicates the year oforiginal adoption or, in the case o
2、f revision, the year of last revision. 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 covers procedures for the installation ofmineral fiber batt and blanket thermal
3、insulation in ceilings,attics, floors, and walls of new or existing housing and otherlight frame construction.1.2 This practice covers the installation process from pre-installation inspection through post-installation inspection. Itdoes not cover the production of the insulation materials.1.3 This
4、practice is not intended to replace installationinstructions by manufacturers, but it shall be used in conjunc-tion with such instructions. This practice is not intended tosupersede local, state, or federal codes.1.4 This practice assumes that the installer possesses aworking knowledge of applicable
5、 codes and regulations, safetypractices, tools, equipment, and methods necessary for theinstallation of thermal insulation materials. It also assumes thatthe installer understands the fundamentals of construction thataffect the installation of insulation.1.5 The values stated in inch-pound units are
6、 to be regardedas standard. The 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
7、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:2C168 Terminology Relating to Thermal InsulationC665 Specification for Mineral-Fiber Blanket Thermal In
8、-sulation for Light Frame Construction and ManufacturedHousingC755 Practice for Selection of Water Vapor Retarders forThermal InsulationD3833/D3833M Test Method forWaterVaporTransmissionof Pressure-Sensitive TapesE84 Test Method for Surface Burning Characteristics ofBuilding Materials2.2 Other Stand
9、ards:NFPA-31 Standard for the Installation of Oil BurningEquipment3NFPA-54 National Fuel Gas Code3NFPA-70 National Electric Code3NFPA-211 Standard for Chimneys, Fireplaces,Vents andSolid-Fuel Burning Appliances3ICC International Residential Code4CPSC Product Safety Fact Sheet No. 518 “The HomeElectr
10、ical System”53. Terminology3.1 DefinitionsDefinitions relating to thermal insulationin Terminology C168 apply to terms used in this practice.3.2 Description of Terms Specific to This Standard:3.2.1 conditioned spacespace in a building that is servedby a heating or cooling system.3.2.2 installerthe p
11、erson or persons who apply thermalinsulation materials in buildings whether or not such person orpersons have contracted with the owner to perform the work.3.2.3 mineral fiber batt and blanket thermal insulatingmaterialsthose materials that meet the minimum require-ments set forth in Specification C
12、665.3.2.4 ownerthe person, partnership, corporation, agency,or other entity who owns the building to be insulated whethersuch ownership is by virtue of deed, contract, or any other1This practice is under the jurisdiction of ASTM Committee C16 on ThermalInsulation and is the direct responsibility of
13、Subcommittee C16.23 on Blanket andLoose Fill Insulation.Current edition approved Nov. 1, 2010. Published November 2010. Originallyapproved in 1995. Last previous edition approved in 2009 as C1320 05(2009)1.DOI: 10.1520/C1320-10.2For referenced ASTM standards, visit the ASTM website, www.astm.org, or
14、contact 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 BatterymarchPark, Quincy, MA 02169-7471, http:/www.nfpa.org.4Available
15、 from International Code Council (ICC), 500 New Jersey Ave., NW,6th Floor, Washington, DC 20001-2070, http:/www.iccsafe.org.5Available from U.S. Consumer Product Safety Commission (CPSC), 4330 EastWest Hwy., Bethesda, MD 20814, http:/www.cpsc.gov.1Copyright ASTM International, 100 Barr Harbor Drive,
16、 PO Box C700, West Conshohocken, PA 19428-2959, United States.instrument for acquiring legal title under the laws of the Statein which the building is located.3.2.5 vapor retardermembrane or tape that has a watervapor permeance (perm) rating of 1 perm (5.7 3 1011kgPa1s1m2) or less as defined in Prac
17、tice C755 or TestMethod D3833/D3833M respectively.4. Significance and Use4.1 This practice recognizes that effectiveness, safety, anddurability of insulation depend not only on the quality of theinsulating materials but also on their proper installation.4.2 This practice provides general procedures
18、that will helpto ensure installation of insulation in a safe and effectivemanner. It shall be noted that actual conditions in existingbuildings vary greatly and in some cases additional care shallbe taken to ensure effective and safe installation.5. Safety Precautions5.1 The installer shall wear pro
19、per clothing and equipmentas recommended by the insulation manufacturer.5.2 In areas where insulation is to be installed, componentsof the electrical system shall be in good condition. If there isreason to believe the electrical system is faulty, do not installinsulation in such areas until the owne
20、r has been informed andrepair has been accomplished.NOTE 1The CPSC Product Safety Fact Sheet No. 518 has identifiedthe following signs of electrical deficiencies: lights dimming, fusesblowing, circuit breakers tripping frequently, electrical sparks and “glow-ing” from receptacles, light flickering,
21、and coverplates on switches andoutlets that are warm or hot to the touch.6. Pre-installation Inspection and Preparation6.1 Inspect the roof, walls, ceilings, and attic floors toidentify areas where previous or existing moisture problemshave caused paint peeling, warpage, staining, visible fungusgrow
22、th, rotting, or other structural damage. Do not installinsulation in such areas until the owner has been informed andhas certified that these conditions have been corrected and theirsource(s) of moisture eliminated.6.2 Provide proper attic ventilation in accordance with localbuilding requirements or
23、 practices, such as the ICC Interna-tional Residential Code.6.3 When the attic has soffit vents at the eaves, makeprovisions to prevent insulation from blocking the vents andrestricting attic ventilation.6.4 Where insulation is to be installed beneath floors overcrawl spaces or on crawl space walls,
24、 cover the ground surfacewith a vapor retarder.6.5 Provide proper crawl space ventilation in accordancewith local building requirements or practices, such as the ICCInternational Residential Code.6.6 Inspect attic floors for openings that might permitentrance of air from conditioned spaces below. Do
25、 not installinsulation in such areas until the owner has been informed andhas certified that these conditions have been corrected.7. Installation Procedures7.1 General:7.1.1 Handle the insulation material in accordance with themanufacturers instructions and keep free of extraneous mate-rials. Keep m
26、aterials dry, off the ground, and protected fromwater.7.1.2 It is difficult to describe every situation that will beencountered by the insulation installer. In general, however, theinstaller shall be guided by the need to reduce heat flow aroundor through obstructions and to protect mechanical syste
27、ms.Wherever insulation is installed in a building, it is veryimportant that it fit snugly on all sides. If the insulation is toolong for a space, cut it to the correct size. If it is too short, cuta piece to fill the void.7.1.3 Install the insulation in such a way that the thicknessspecified by the
28、manufacturer is met or exceeded. Avoidcompression of the insulation where ever possible. Failure toachieve the manufacturers labeled thickness will reduce theR-value.7.1.4 When a vapor retarder facing is provided with theinsulation, it can be pressure fit with no stapling or face stapledor inset sta
29、pled. Both inset and face staple methods are widelyused and are acceptable procedures. Inset stapling is usuallypreferred by the wall finish trades because it allows adhesiveapplication of the wall board. Some areas require face stapling.Always check the local code requirements.7.1.4.1 Position the
30、vapor retarder toward the winter-warmside, except in a hot, humid climate where local requirementsor practices differ regarding the placement of vapor retarders.7.1.4.2 Friction fit batts such as R13, R15, R21, R22, R30C,or R38C as well as kraft faced batts without attached staplingflanges do not ha
31、ve to be stapled in place. The higher densityor increased glass batt width of these products helps hold themin place without a measurable loss in the moisture protection ofthe vapor retarder. Make sure the insulation facing is flush withthe face of the stud. The insulation shall fit snugly at the si
32、desand ends.7.1.4.3 When inset stapling, gently press the insulation atthe sides of the framing cavity, usually about34 in. (19 mm),until the outside of the flange is flush with the face of theframing. When inset stapling between inclined or verticalframing members, as in cathedral ceilings or walls
33、, startstapling at the top and work down. Use enough staples to holdthe insulation firmly in place and avoid gaps or fishmouthsbetween flanges and framing.7.1.4.4 When face stapling, place the insulation betweenframing members and check to be sure it fits the cavity at bothends. With facing material
34、 flush with the face of the framing,the flanges will overlap the framing. Staple the flanges to theface of the framing, using enough staples to hold the insulationfirmly in place and avoid gaps and fishmouths. The flange ofthe faced insulation placed in the next cavity will overlap thepreviously sta
35、pled flange. When more than one batt is used,pieces shall be snugly butted.7.1.5 Building insulations faced with kraft or standard foilhaving a flame spread index greater than 25 shall never be leftexposed as stated on the facing of the product. The facing shallbe covered and in substantial contact
36、with an approved ceiling,wall, or floor construction material as required by the buildingcodes. When supplied with stapling flanges inset and faceC1320 102stapling of these products are acceptable procedures. Alter-nately a separate vapor retarder installed over the unfaced battsor blanket attached
37、directly to the framing member in thelocation described in 7.1.4.1 is acceptable.7.1.5.1 Install the vapor retarder either parallel or perpen-dicular to framing members.7.1.5.2 In installations where there is a light stress on thevapor retarder, attach to wood framing with staples or adhe-sive, and
38、to steel framing with adhesive or double sided tape.7.1.5.3 In installations where there is a significant load onthe vapor retarder due to application conditions, support withfurring strips and screws or strapping. Consult the vaporretarder supplier for further instructions in such cases.7.1.5.4 Ove
39、rlap the adjacent runs by at least one inch(25mm).7.1.5.5 When required by building codes or architecturalspecifications tape over overlap seams.7.1.6 Maintain a 3-in. (75-mm) minimum air space aroundmotors, fans, blowers, heaters, other heat-producing devices,flues and chimneys, as specified by NFP
40、A-31, NFPA-54, andNFPA-211.7.1.7 Maintain a 3-in. (75-mm) minimum air space aroundall sides of recessed lighting fixtures, unless such fixtures areapproved for installation in direct contact with insulation, ICrated, as specified in NFPA-70. This includes fixture wiringcompartments and ballasts, and
41、 other heat-producing devices.Do not cover open areas above these devices; allow free aircirculation, unless they are specifically approved for operationwhen covered with thermal insulation.Allow devices that havethe potential to require periodic servicing to remain accessibleafter the insulation is
42、 installed.7.2 Walls:7.2.1 Carefully fill any small spaces remaining aroundwindows, doors, or wall cavity obstructions with insulation.Patch the vapor retarder with vapor retarder tape where it hasbeen interrupted in these areas, including any remaining fishmouths or gaps between flanges and framing
43、.7.2.2 Caulk, gasket, or otherwise seal around all otherpenetrations of the interior wall, including plumbing, electrical,heat registers, and grills.7.2.3 Insulate junction boxes for wall switches and conve-nience outlets at outside walls between the rear of the box andthe sheathing. Place insulatio
44、n behind the junction box, and ifnecessary, cut insulation to fit snugly around it. Where electri-cal wiring passes through a stud cavity and is located close tothe inside wall surface, insulation shall be pressed behind thewiring. When the wiring is in the center of the cavity, eithermake a shallow
45、 cut in the insulation to allow the wiring to passthrough the insulation or split the insulation lengthwise andsandwiched the wiring within.7.2.4 Place insulation between the piping in exterior wallsand the exterior wall sheathing. Sidewalls where plumbingfixtures are to be placed shall be insulated
46、 before the fixturesare installed. To guard against pipes freezing, insulation shallnever be placed between piping and the warm side of the wall.7.3 Attics, Ceilings, and Floors:7.3.1 When installing insulation around trusses or crossbracing of ceiling or floor joists, care shall be taken to ensuret
47、hat the insulation material is of the proper width, fits tightlyaround these obstructions, and that there are no gaps in theinsulation.7.3.2 Use only full width (typically 16 or 24 in. wide) battsor blankets when insulating between attic trusses and ceilingjoists below open attic spaces. When insula
48、ting with twolayers, the first layer of insulation shall be at least the sameheight as the bottom structural member.Apply the second layercrosswise to the joists. For single layer applications, useinsulation thicker than the bottom structural member and makesure the tops of adjacent batts or blanket
49、s meet and cover thestructural members where unobstructed.7.3.3 Install floor insulation between floor joists to fit snuglyin the joist areas in contact with the floor and support with suchthings as wire fasteners, screening, or nylon mesh held in placeby stapling or nailing.7.3.4 Install insulation around air vents in a manner that willensure free movement of air through the vents into the attic orcrawl space.7.3.5 Fit the attic side of access doors or panels with aninsulation batt (or equivalent material) except where there is aretractable ladder or other equi
