1、Designation: C 1320 05Standard Practice forInstallation of Mineral Fiber Batt and Blanket ThermalInsulation for Light Frame Construction1This standard is issued under the fixed designation C 1320; the number immediately following the designation indicates the year oforiginal adoption or, in the case
2、 of revision, 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.1. Scope1.1 This practice covers procedures for the installation ofmineral fiber batt and blanket therm
3、al 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 Th
4、is practice is not intended to replace manufacturersinstallation instructions, but it shall be used in conjunction withsuch instructions. This practice is not intended to supersedelocal, state, or federal codes.1.4 This practice assumes that the installer possesses aworking knowledge of applicable c
5、odes 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 t
6、o be regardedas the standard. The values given in parentheses are forinformation only.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 establish appro-priate safety and health practices a
7、nd determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C 168 Terminology Relating to Thermal InsulationC 665 Specification for Mineral-Fiber Blanket Thermal In-sulation for Light Frame Construction and ManufacturedHousingC 755 Practice for S
8、election of Vapor Retarders for ThermalInsulationD 3833 Test Method for Water Vapor Transmission ofPressure-Sensitive TapesE84 Test Method for Surface Burning Characteristics ofBuilding Materials2.2 Other Standards:NFPA-31 Standard for the Installation of Oil BurningEquipment3NFPA-54 National Fuel G
9、as Code3NFPA-70 National Electric Code3NFPA-211 Standard for Chimneys, Fireplaces,Vents andSolid-Fuel Burning Appliances3ICC International Residential Code4CPSC Product Safety Fact Sheet No. 18, “The HomeElectrical System”53. Terminology3.1 DefinitionsDefinitions relating to thermal insulationin Ter
10、minology C 168 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 person or persons who apply thermalinsulation materials in buildings whether or not such p
11、erson 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 665.3.2.4 ownerthe person, partnership, corporation, agency,or other entity who owns the
12、 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 Subcommittee C16.23 on Blanket andLoose Fill Insulation.Current edition approved May 1,
13、2005. Published May 2005. Originallyapproved in 1995. Last previous edition approved in 2004 as C 1320 99 (2004)e1.2For 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 t
14、he standards Document Summary page onthe ASTM website.3Available from National Fire Protection Association, 1 Batterymarch Park,Quincy, MA 02169.4Available from International Code Council, 5203 Leesburg Pike, Suite 600,Falls Church, VA 22041.5Available from U.S. Consumer Product Safety Commission, W
15、ashington, DC20207.1Copyright ASTM International, 100 Barr Harbor Drive, 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
16、(perm) rating of 1 perm (5.7 3 1011kgPa1s1m2) or less as defined in Practice C 755 or TestMethod D 3833 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
17、 proper installation.4.2 This practice provides general procedures 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
18、 installation.5. Safety Precautions5.1 The installer shall wear proper 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 syst
19、em is faulty, do not installinsulation in such areas until the owner has been informed andrepair has been accomplished.NOTE 1The CPSC Product Safety Fact Sheet No. 18 has identified thefollowing signs of electrical deficiencies: lights dimming, fuses blowing,circuit breakers tripping frequently, ele
20、ctrical sparks and “glowing” fromreceptacles, light flickering, and coverplates on switches and outlets thatare 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 problems
21、have caused paint peeling, warpage, staining, visible fungusgrowth, 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 at
22、tic ventilation in accordance with localbuilding requirements or 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 in
23、stalled beneath floors overcrawl spaces or on crawl space walls, 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 th
24、at might permitentrance of air from conditioned spaces below. Do 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 themanufactu
25、rers instructions and keep free of extraneous mate-rials. Keep materials 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 fl
26、ow aroundor through obstructions and to protect mechanical systems.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
27、the insulation in such a way that the thicknessspecified by the 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
28、can be pressure fit with no stapling or face stapledor inset stapled. 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 staplin
29、g.Always check the local code requirements.7.1.4.1 Position the 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
30、 as kraft faced batts without attached staplingflanges do not have 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 wit
31、hthe face of the stud. The insulation shall fit snugly at the sidesand 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 inclin
32、ed or verticalframing members, as in cathedral ceilings or walls, 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
33、 to be sure it fits the cavity at bothends. With facing material 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 ins
34、ulation placed in the next cavity will overlap thepreviously stapled 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
35、 product. The facing shallbe covered and in substantial contact with an approved ceiling,wall, or floor construction material as required by the buildingC1320052codes. When supplied with stapling flanges inset and facestapling of these products are acceptable procedures.7.1.6 Maintain a 3-in. (75-mm
36、) minimum air space aroundmotors, fans, blowers, heaters, other heat-producing devices,flues and chimneys, as specified by NFPA-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 i
37、n direct contact with insulation, ICrated, as specified in NFPA-70. This includes fixture wiringcompartments and ballasts, and other heat-producing devices.Do not cover open areas above these devices; allow free aircirculation, unless they are specifically approved for operationwhen covered with the
38、rmal insulation. Allow devices that mayrequire periodic servicing to remain accessible after the insu-lation is 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 wher
39、e it hasbeen interrupted in these areas, including any remaining fishmouths or gaps between flanges and framing.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 s
40、witches and conve-nience outlets at outside walls between the rear of the box andthe sheathing. Place insulation 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, ins
41、ulation shall be pressed behind thewiring. When the wiring is in the center of the cavity, eithermake a shallow 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 exte
42、rior wallsand the exterior wall sheathing. Sidewalls where plumbingfixtures are to be placed shall be insulated 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
43、installing insulation around trusses or crossbracing of ceiling or floor joists, care shall be taken to ensurethat 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
44、) battsor blankets when insulating between attic trusses and ceilingjoists below open attic spaces. When insulating 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 applicati
45、ons, useinsulation thicker than the bottom structural member and makesure the tops of adjacent batts or blankets 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 such
46、things 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 (
47、or equivalent material) except where there is aretractable ladder or other equipment attached. Anchor theinsulation to the door or panel with staples or adhesive.8. Post-installation Inspection8.1 Ensure that no gaps or areas exist where insulation isunnecessarily compressed. Examples are behind pip
48、ing andelectrical wiring. When inset stapling, minimal compressionshall be used to fasten the facing flanges.8.2 Ensure that insulation does not restrict vents so thatminimum attic ventilation requirements specified in 6.2,orcrawl space ventilation requirements specified in 6.5 of thispractice are m
49、et.8.3 Ensure that insulation material is not in the air spaces,specified in 7.1.6 and 7.1.7 of this practice, around and abovemotors, fans, blowers, heaters, recessed lighting fixtures, bal-lasts, wiring compartments, and other heat-producing devices.Turn off electric power while performing this inspection.8.4 Ensure that all cavities that act as air ducts for heating,cooling, or ventilation requirements are not restricted byinsulation materials.8.5 Ensure that no vapor retarder faced insulation with aflame spread index greater than 25, per Test Method E84,isleft ex
