1、Designation: C1535 05 (Reapproved 2017)Standard Practice forApplication of Exterior Insulation and Finish Systems ClassPI1This standard is issued under the fixed designation C1535; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, th
2、e 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. Scope*1.1 This practice covers the minimum requirements andprocedures for field or prefabricated application of Class
3、 PIExterior Insulation and Finish Systems (EIFS). Class PI EIFSare systems applied over polyisocyanurate insulation board, inwhich the base coat ranges from not less than116 in. (1.6 mm)to14 in. (6.4 mm) in dry thickness, depending upon the numberof nonmetallic reinforcing mesh layers encapsulated i
4、n the basecoat. The base coat is then covered with a finish coat of variousthickness in a variety of textures and colors. The insulationboard shall be applied over a substrate or over open framing.1.2 This practice does not cover Class PI EIFS with drain-age. Consult the EIFS producer for informatio
5、n.1.3 The values stated in inch-pound units are to be regardedas the standard. The SI (metric) values given in parentheses areapproximate and are provided for information purposes only.1.4 The text of this standard references notes and footnotesthat provide explanatory material. These notes and foot
6、notesshall not be considered as requirements of the standard.1.5 This standard may involve hazardous materials, opera-tions and equipment. This standard does not purport to addressall of the safety concerns, if any, associated with its use. It isthe responsibility of the user of this standard to est
7、ablishappropriate safety and health practices and determine theapplicability of regulatory limitations prior to use.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment
8、 of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C11 Terminology Relating to Gypsum and Related BuildingMaterials and SystemsC79/C79M Specification for Gypsum Sheathin
9、g Board(Withdrawn 2004)3C150 Specification for Portland CementC1063 Specification for Installation of Lathing and Furringto Receive Interior and Exterior Portland Cement-BasedPlasterC1177/C1177M Specification for Glass Mat Gypsum Sub-strate for Use as SheathingC1186 Specification for Flat Fiber-Ceme
10、nt SheetsC1278/C1278M Specification for Fiber-Reinforced GypsumPanelC1280 Specification for Application of Exterior GypsumPanel Products for Use as SheathingC1289 Specification for Faced Rigid Cellular Polyisocyanu-rate Thermal Insulation BoardC1325 Specification for Non-Asbestos Fiber-Mat Rein-forc
11、ed Cementitious Backer UnitsC1382 Test Method for Determining Tensile Adhesion Prop-erties of Sealants When Used in Exterior Insulation andFinish Systems (EIFS) JointsC1472 Guide for Calculating Movement and Other EffectsWhen Establishing Sealant Joint WidthC1481 Guide for Use of Joint Sealants with
12、 Exterior Insu-lation and Finish Systems (EIFS)E1825 Guide for Evaluation of Exterior Building WallMaterials, Products, and SystemsE2110 Terminology for Exterior Insulation and Finish Sys-tems (EIFS)3. Terminology3.1 Definitions used in this standard shall be in accordancewith Terminologies C11 and
13、E2110.1This 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 Application of Exterior Insulating and Finish Systems andRelated Products.Current edition approved April 1, 2017. Publish
14、ed April 2017. Originallyapproved in 2002. Last previous edition approved in 2005 as C1535 05 (2011).DOI: 10.1520/C1535-05R17.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information,
15、 refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, P
16、A 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization
17、Technical Barriers to Trade (TBT) Committee.14. Significance and Use4.1 This practice provides minimum requirements for theapplication of Class PI EIFS. The requirements for materials,mixtures, and details shall be contained in the project plans andspecifications. See Guide E1825 for guidance.5. Del
18、ivery 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 and bea part of the purchase agreement.6.2 Inspection shall include the determination that the ma-te
19、rials supplied are as required for the Class PI EIF Systemspecified. Mixing of materials from different manufacturers isnot allowed.7. Rejection7.1 Materials that are damaged, frozen or defective shall notbe used. Rejection of materials shall be promptly reportedverbally to the producer and immediat
20、ely reported in writing.The notice of rejection shall contain a statement documentingthe basis for material rejection.8. Certification8.1 When specified in the contract documents, the producershall furnish a report certifying that the materials are inconformance with product and material standards a
21、nd contractdocuments.8.2 Insulation Boards:8.2.1 Insulation boards shall be in compliance with Speci-fication C1289 , Type II, Class 2.8.2.2 Insulation boards shall have been subjected to a thirdparty quality control inspection and shall be marked asapproved for use within the EIFS and in accordance
22、 withapplicable building code.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 certificate of conformance with
23、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 the weather, surfacecontaminat
24、ion or physical damage in accordance with the EIFSproducers written instructions.9.2 Materials shall be protected from exposure to directsunlight and temperatures less than 40F (4C) unless other-wise specified by the manufacturer.9.3 Portland Cement shall meet Specification C150 andshall be kept dry
25、 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. Environmental Conditions10.1 Cold W
26、eather Conditions:10.1.1 Wet materials shall not be applied when the tempera-ture is less than 40F (4C) unless otherwise specified by themanufacturer or unless temporary heat and enclosures areprovided to maintain minimum 40F (4C) for a minimumperiod of not less than 24 hours before, during and afte
27、rapplication. (See X1.8.3)10.1.2 Materials shall not be applied to a base containingfrost. Substrate surface temperature shall be not less than 40F(4C). Mixtures for application shall not contain any frozeningredients.11. Assessment of Condition of Substrates to ReceiveExterior Insulation and Finish
28、 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 Polyisocyanurate boards for use over open framing inconformance with the EIFS producers specification shall notbe less than 1.0 in.
29、 (25.4 mm) in thickness.11.1.2 Polyisocyanurate boards for use over a substrate inconformance with the EIFS producers specification shall notbe less than58 in. (15.9 mm) in thickness.NOTE 1Polyisocyanurate board thickness shall conform to buildingcode requirements.11.2 The substrate shall be inspect
30、ed by the applicator andgeneral contractor to assure that it meets the project plans andspecifications and the requirements of 11.3 11.8.11.3 Sheathing materials shall be inspected to ensure thefollowing:11.3.1 The specified sheathing thickness has been installedfor the stud spacing used.11.3.2 Fast
31、ener type and fastener spacing are as specified.11.3.3 All Specification C79/C79M gypsum sheathingboards have a water-resistant treated core.11.3.4 Tongue and groove water-resistant core gypsumsheathing boards conforming to Specification C79/C79M areinstalled with the tongue edge oriented to the top
32、.11.3.5 Gypsum sheathing shall be installed with the facepaper exposed in accordance with Specification C1280.11.3.6 Gypsum sheathing shall be protected from moistureat all penetrations and terminations.11.3.7 Glass mat gypsum sheathing complying with Speci-fication C1177/C1177M shall be installed i
33、n 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. (12.7 mm)nominal in thickness, exterior or exposure 1 panel sheath
34、ing.The plywood shall be installed with a18 in. (3.2 mm) spacebetween sheets at edges and ends.11.3.9 Fiber-Cement sheets complying with SpecificationC1186, Type A, shall be installed in accordance with the sheetC1535 05 (2017)2producers written installation instructions, which include de-tails of s
35、tud type and spacing, fastener type and spacing, andsheet spacing recommendations.11.3.10 Water-resistant exterior fiber-reinforced gypsumsheathing complying with Specification C1278/C1278M shallbe installed in accordance with the sheathing producerswritten installation instructions, which include d
36、etails of fram-ing type and spacing, fastener type and spacing, and sheathingorientation and spacing.11.3.11 Fiber-mat reinforced cement sheets complying withSpecification C1325, type A, shall be installed in accordancewith the sheet producers written installation instructions,which include details
37、of framing type and spacing, fastenertype and spacing, and sheet orientation and spacing.11.3.12 Sheathing shall be continuous.11.4 AlignmentAll substrate surfaces shall be straight andtrue within14 in./10 ft (2 mm/m). More stringent requirementsby the EIFS producer shall supersede the above stated
38、require-ments.11.5 Suitability for UseThe substrate shall be firm, sound,and undamaged in order to receive the EIFS.11.6 CleanlinessThe surface of all substrates shall beclean and free from any foreign materials such as paint, formrelease agents, curing compounds, dust, dirt, frost, oil orgrease, ef
39、florescence and laitance that would affect the EIFSapplication.11.7 Dryness:11.7.1 Newly constructed concrete or masonry surfacesshall be allowed to cure not less than 28 days prior toapplication of the EIFS. Repaired areas on existing (aged)walls shall meet the same 28-day curing time.11.7.2 Substr
40、ate surfaces shall be free of visible water.11.8 Metal Lath or Furring and AccessoriesIf metal lathor furring and accessories are used, they shall be installed inconformance with Specification C1063, except lath edges andends shall be butted and not lapped. Metal lath shall be 3.4lb/yd2(1.3 kg/m2) s
41、elf-furring, galvanized.11.8.1 Metal members shall be properly attached, straight,and true unless otherwise required by the system design.11.8.2 Metal members shall be free of rust, oil, or otherforeign matter or contaminants, which cause bond failure orunsightly discoloration.12. Insulation Board I
42、nstallation12.1 Method of Attachment shall be approved by thesystem producer and be in accordance with applicable buildingcode.12.2 Mechanical Attachment Method:12.2.1 Mechanical fasteners shall be installed into the fram-ing or nailable substrate.12.2.2 Mechanical fasteners shall be corrosion resis
43、tant.Fastener type and spacing shall be in accordance with systemproducers current published instructions.NOTE 2Specific consideration of building code wind load require-ments shall be given for mechanically fastened systems.12.3 Placement of a weather resistive barrier, if specified,shall be as req
44、uired by the system producer.13. General Requirements13.1 Insulation boards shall be placed from a level base linewith vertical joints staggered in a running bond pattern andbutted tightly. Over open framing, joints shall occur overframing or horizontal blocking.13.2 Insulation board joints at all i
45、nside and outside cornersshall be staggered and interlocked.13.3 Insulation boards must abut without gaps, eliminatingspace for base coat intrusion between the board edges andends.13.4 Fenestration opening corners and other wall penetra-tions shall be cut out of a single insulation board. Board join
46、tsshall not be aligned at corners with head, sill or jambs ofwindows, doors, similar openings, and aesthetic reveals.13.5 Mechanically Fastened:13.5.1 Insulation board joints shall be offset from sheathingboard joints.13.5.2 When the boards are attached only with mechanicalfasteners, they shall be a
47、ffixed to a nailable substrate orstructural members with the proper fasteners, ensuring that allboards abut tightly. Fastening pattern shall be in accordancewith the EIFS producers recommendation and local buildingcode requirements. When installed, the washer shall be leftflush with the face of the
48、insulation board and shall not fracturethe face or core of insulation board.14. Aesthetic Reveals14.1 Aesthetic reveals shall be cut into the insulation boardprior to applying the reinforcing mesh.14.2 The insulation board thickness at the bottom of a revealshall be not less than34 in. (19.0 mm). Ov
49、er open framing,aesthetic reveals shall occur over framing or blocking.14.3 Aesthetic reveals shall be cut true and straight.14.4 Horizontal aesthetic reveal configuration shall providefor outward positive drainage.14.5 Aesthetic reveals shall not occur at the abutment of twopieces of insulation board.14.6 The reveal shall be reinforced with base coat andreinforcing mesh prior to application of the full base coat andreinforcing mesh.15. Reinforced Base Coat Application15.1 Inspect the insulation board surface to ensure that it isclean, dry, free of a
