1、Designation: C 1397 05Standard Practice forApplication of Class PB Exterior Insulation and FinishSystems1This standard is issued under the fixed designation C 1397; 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 (e) indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This practice covers the minimum requirements andprocedures for field or prefabricated application of Class PBExterior Ins
3、ulation and Finish Systems (EIFS). Class PB EIFSare systems applied over insulation board, in which the basecoat ranges from not less than116 in. (1.6 mm) to14 in. (6.4mm) in dry thickness, depending upon the number of nonme-tallic reinforcing mesh layers encapsulated in the base coat.The base coat
4、is then covered with a finish coat of variousthickness in a variety of textures and colors.1.2 This practice does not cover Class PB EIFS withdrainage. Consult the EIFS producer for information.1.3 The values stated in inch-pound units are to be regardedas the standard. The metric values given in pa
5、rentheses areapproximate and are provided for information purposes only.1.4 The text of this practice references notes and footnoteswhich provide explanatory material. These notes and footnotes(excluding those in tables and figures) shall not be consideredas a requirement of the standard.1.5 This st
6、andard may involve hazardous materials, opera-tions, and equipment. This standard does not purport toaddress all of the safety concerns, if any, associated with itsuse. It is the responsibility of the user of this standard toestablish appropriate safety and health practices and deter-mine the applic
7、ability of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C11 Terminology Relating to Gypsum and Related Build-ing Materials and SystemsC 79/C 79M Specification for Gypsum Sheathing Board3C 150 Specification for Portland CementC 578 Specification for Rigid, Cellular P
8、olystyrene ThermalInsulationC 1063 Specification for Installation of Lathing and Furringto Receive Interior and Exterior Portland Cement-BasedPlasterC 1177/C 1177M Specification for Glass Mat Gypsum Sub-strate for Use as SheathingC 1186 Specification for Flat Non-Asbestos Fiber-CementSheetsC 1278/C
9、1278M Specification for Fiber-Reinforced Gyp-sum PanelC 1280 Specification for Application of Gypsum SheathingC 1325 Specification for Non-Asbestos Fiber-Mat Rein-forced Cement Substrate SheetsC 1382 Test Method for Determining Tensile AdhesionProperties of Sealants When Used in Exterior Insulationa
10、nd Finish Systems (EIFS) JointsC 1472 Guide for Calculating Movement and Other EffectsWhen Establishing Sealant Joint WidthC 1481 Guide for Use of Joint Sealants With ExteriorInsulation and Finish Systems (EIFS)E 1825 Guide for Evaluation of Exterior Building WallMaterials, Products, and SystemsE211
11、0 Terminology for Exterior Insulation and Finish Sys-tems (EIFS)3. Terminology3.1 Definitions used in this standard shall be in accordancewith Terminologies C11and E2110.4. Significance and Use4.1 This practice provides minimum requirements for theapplication of Class PB EIFS. The requirements for m
12、aterials,mixtures, and details shall be contained in the project plans andspecifications. See Guide E 1825 for guidance.1This practice is under the jurisdiction of ASTM Committee C11 on Gypsumand Related Building Materials and Systems and is the direct responsibility ofSubcommittee C11.05 on Applica
13、tion of Exterior Insulating and Finish Systems andRelated Products.Current edition approved October 1, 2005. Published October 2005. Originallyapproved in 1998. Last previous edition approved in 2004 as C 1397 04.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Cu
14、stomer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West
15、 Conshohocken, PA 19428-2959, United States.5. Delivery of Materials5.1 All materials shall be delivered in packages, containers,or bundles with the identification and markings intact.6. Inspection6.1 Inspection of the materials shall be agreed upon betweenthe purchaser and the supplier as part of t
16、he purchase agree-ment.6.2 Inspection shall include the determination that the EIFSmaterials supplied are as required for the Class PB EIF Systemspecified. Mixing of EIFS materials from different manufac-turers is not allowed.7. Rejection7.1 Materials that are damaged, frozen or in any waydefective
17、shall not be used. Rejection of materials shall bepromptly reported verbally to the producer and immediatelyreported in writing. The notice of rejection shall contain astatement documenting the basis for material rejection.8. Certification8.1 When specified in the contract documents, the producersha
18、ll furnish a report certifying that the materials are inconformance with product and material standards and contractdocuments.8.2 Insulation Boards:8.2.1 Insulation boards shall be Specification C 578, Type 1.8.2.2 The insulation boards shall have been subjected to athird party quality control inspe
19、ction and shall be marked asapproved for use within the EIFS.8.2.3 Prior to installation, the insulation board shall beinspected for conformance with contract documents. Noncon-forming insulation board shall not be used.8.2.4 The insulation board producer shall furnish, for eachshipment, a written c
20、ertificate of conformance with the EIFSproducers specifications.9. Storage of Materials9.1 All materials shall be kept dry by storage under coverand protected from the weather. When outside storage isrequired, materials shall be stacked off the ground, supportedon a level platform and protected from
21、 the weather, surfacecontamination or physical damage in accordance with the EIFSproducers written instructions.9.2 Materials shall be protected from exposure to directsunlight and temperatures less than 40 F (4 C), unlessotherwise specified by the manufacturer.9.3 Portland Cement shall meet Specifi
22、cation C 150 andshall be kept dry until ready for use. It shall be kept off theground, under cover and away from damp walls and surfaces.9.4 Insulation board shall be stacked flat with care taken toavoid damage to edges, ends, or surfaces; or exposure to directsunlight (ultraviolet radiation).10. En
23、vironmental Conditions10.1 Cold Weather Conditions:10.1.1 Wet materials shall not be applied when the tempera-ture is less than 40 F (4 C), unless otherwise specified by themanufacturer, unless temporary heat and enclosures are pro-vided to maintain minimum 40 F (4 C) for a minimum periodof not less
24、 than 24 h before, during, and after application (seeAnnex A1.9.3).10.1.2 Materials shall not be applied to a base containingfrost. Substrate surface temperature shall be not less than 40 F(4 C). Mixtures for application shall not contain any frozeningredients.11. Assessment of Condition of Substrat
25、es to ReceiveExterior Insulation and Finish Systems11.1 The substrate shall be as required by the project plansand specifications and as recommended by the EIFS producerfor the particular system specified.11.1.1 Insulation boards shall be as required by the EIFSproducers specification and in the thi
26、ckness specified.11.2 The substrate shall be inspected by the applicator andgeneral contractor to ensure that it meets the project plans andspecifications and the requirements of 11.3-11.8.11.3 Sheathing materials shall be inspected to ensure that:11.3.1 The specified sheathing thickness has been in
27、stalledfor the stud spacing used.11.3.2 Fastener type and fastener spacing are as specified.11.3.3 All Specification C 79/C 79M gypsum sheathingboards shall have a water-resistant core.11.3.4 Tongue and groove water-resistant treated core gyp-sum sheathing boards conforming to Specification C 79/C 7
28、9Mshall be installed with the tongue edge oriented to the top.11.3.5 Gypsum sheathing shall be installed with the facepaper exposed in accordance with Specification C 1280.11.3.6 Gypsum sheathing shall be protected from moistureat all penetrations and terminations.11.3.7 Glass mat gypsum sheathing c
29、omplying with Speci-fication C 1177/C 1177M shall be installed in accordance withthe sheathing producers written installation instructions,which include details of framing type and spacing, fastenertype and spacing, and sheathing orientation and spacing.11.3.8 Plywood shall be not less than12 in. (1
30、2.7 mm)nominal in thickness, exterior or exposure 1 wood-based panelsheathing. The plywood shall be installed with a18 in. (3.2mm) space between sheets.11.3.9 Fiber-cement sheets complying with SpecificationC 1186, Type A, shall be installed in accordance with the sheetproducers written installation
31、 instructions, which include de-tails of stud type and spacing, fastener type and spacing, andsheet spacing recommendations.11.3.10 Water-resistant exterior fiber-reinforced gypsumsheathing complying with Specification C 1278/C 1278M shallbe installed in accordance with the sheathing producerswritte
32、n installation instructions, which include details of studtype and spacing, fastener type and spacing, and sheathingorientation and spacing.11.3.11 Fiber-mat reinforced cement sheets complying withSpecification C 1325, type A, shall be installed in accordancewith the sheet producers written installa
33、tion instructions,which include details of framing type and spacing, fastenertype and spacing, and sheet orientation and spacing.11.3.12 Sheathing shall be continuous.C139705211.4 AlignmentAll substrate surfaces shall be straight andtrue within14 in. (6.4 mm) in 10 ft (3048 mm). More stringentrequir
34、ements by the EIFS producer shall supersede the abovestated requirements.11.5 Suitability for UseThe substrate surface shall befirm, sound, and undamaged in order to receive the EIFS.11.5.1 Loose, spalling or crumbling concrete or masonryshall be removed by sandblasting or other appropriate means.If
35、 the surface condition of the substrate is at all in doubt, analternative attachment surface or method shall be provided.11.5.2 Broken, cracked or delaminated substrate boardsshall be replaced or restored to a condition equal to adjacentundamaged boards.11.5.3 All rotted, decayed, or delaminated woo
36、d and ply-wood sheathing shall be replaced.11.5.4 Paper-faced gypsum sheathing that has been installedand exposed to the elements for more than 30 days shall bechecked at not less than two locations, or every 5000 ft2(465m2), whichever is greater, for integrity of the surface. Theprocedures for eval
37、uating the gypsum sheathing are found inAnnex A2.NOTE 1Gypsum sheathing conforming to Specification C 79/C 79Mis sometimes not recommended for adhesive attachment by the gypsumsheathing producer. Consult with the gypsum board producer before use.11.6 CleanlinessThe surface of all substrates shall be
38、clean and free from any foreign materials such as paint, formrelease agents, curing compounds, dust, dirt, frost, oil orgrease, efflorescence and laitance that would affect the EIFSapplication.11.6.1 All sheathing board substrates shall have all loosedirt and dust removed by cleaning methods appropr
39、iate for thejob and job conditions.11.6.2 Efflorescence and laitance on concrete, masonry,stucco or clay tile substrates shall be removed prior to EIFSapplication. Concrete masonry shall be cleaned by light sand-blasting, pressure washing, or brushing. Heavy deposits shallbe removed through use of h
40、and or power impact toolsfollowed by washing with an appropriate cleaner. Light depos-its shall be removed by washing with an appropriate cleaner.All loose particles and cleaner residue shall be removed bywashing with clean, potable water. The surface shall beallowed to dry.11.6.3 Existing paint on
41、concrete or masonry surfaces shallbe removed by sandblasting or grit blasting. If removal ofexisting paint is not practical, an alternate attachment surfaceor method shall be provided.11.7 Dryness:11.7.1 Newly constructed concrete or masonry surfacesshall be allowed to cure not less than 28 days pri
42、or toapplication of the EIFS. Repaired areas on existing (aged)walls shall meet the same 28-day curing time.11.7.2 Sheathing must be dry prior to EIFS application.11.7.3 Substrate surfaces shall be free of visible water.11.8 Metal LathIf metal lath is used, it shall be installedin conformance with S
43、pecification C 1063, except lath edgesshall be butted, not lapped. Metal lath shall be 3.4 lb/yd2(1.3kg/m2) or 2.5 lb/yd2(1.0 kg/m2), self furring or flat, G 60galvanized.11.8.1 Metal members shall be properly attached, straight,and true unless required by the system design.11.8.2 Metal members shal
44、l be free of rust, oil, or otherforeign matter or contaminants, which cause bond failure orunsightly discoloration.12. Insulation Board Installation12.1 Method of attachment shall be approved by the systemproducer.12.2 Adhesive Attachment MethodThe adhesive shall beapplied to the back of the insulat
45、ion board by one of thefollowing methods:12.2.1 Notched Trowel:12.2.1.1 When applied, and before the insulation board isplaced, the height of the adhesive measured from the surface ofthe insulation board shall not be less than14 in. (6.4 mm) forfactory mixed adhesive and38 in. (9.5 mm) for field mix
46、edadhesives.12.2.2 Ribbon and Dab:12.2.2.1 The adhesive shall be applied to the entire perim-eter of the insulation board in a ribbon fashion that is not lessthan 2 in. (50.8 mm) wide by not less than38 in. (9.5 mm)thick. Dabs not less than 4 in. (101.6 mm) in diameter by notless than38 in. (9.5 mm)
47、 thick shall be applied not more than8 in. (203.2 mm) on center over the remainder of the board.13. Adhesive and Mechanical Attachment Method13.1 Adhesive shall be applied using the ribbon and dabmethod, the notched trowel method, or in accordance withsystem producers current published instructions.
48、13.2 Mechanical fasteners shall be installed into the framingor nailable substrate.13.3 Fasteners shall penetrate not less than516 in. (8.0 mm)into steel framing members, 1 in. (25 mm) into wood framingmembers, and 1 in. (25.4 mm) into masonry substrates.13.4 Mechanical fasteners shall be corrosion
49、resistant. Fas-tener type and spacing shall be in accordance with systemproducers current published instructions.13.5 Selection and frequency of fasteners and fastener typewill vary depending on substrate type, insulation board thick-ness and design wind load and whether used in combinationwith an adhesive attachment. Therefore fastener type, patterns,and use shall be in accordance with the EIFS producerswritten instructions and shall be included in the project plansand specifications.14. Mechanical Attachment Method14.1 Mechanical fasteners shall be
