1、*USACE / NAVFAC / AFCESA UFGS-07 24 00 (May 2011)-Preparing Activity: NAVFAC SupersedingUFGS-07 24 00 (August 2008)UFGS-07 24 00 (July 2006) UNIFIED FACILITIES GUIDE SPECIFICATIONReferences are in agreement with UMRL dated April 2011*SECTION TABLE OF CONTENTSDIVISION 07 - THERMAL AND MOISTURE PROTEC
2、TIONSECTION 07 24 00EXTERIOR INSULATION AND FINISH SYSTEMS05/11PART 1 GENERAL1.1 REFERENCES1.2 SYSTEM DESCRIPTION AND REQUIREMENTS1.2.1 System Requirements and Tests1.2.1.1 Water Penetration1.2.1.2 Wind Load1.2.1.3 Full scale or intermediate scale fire test1.2.1.4 Mock-Up Installation of EIFS1.2.2 C
3、omponent Requirements and Tests1.2.2.1 Surface Burning Characteristics1.2.2.2 Radiant Heat1.2.2.3 Impact Resistance1.2.3 Sub-Component Requirements and Tests1.2.3.1 Abrasion Resistance1.2.3.2 Accelerated Weathering1.2.3.3 Mildew Resistance1.2.3.4 Salt Spray Resistance1.2.3.5 Water Resistance1.2.3.6
4、Absorption-Freeze/Thaw1.2.3.7 Sample Boards1.2.4 Moisture Analysis1.3 SUBMITTALS1.4 QUALITY ASSURANCE1.4.1 Qualifications of EIFS Manufacturer1.4.2 Qualification of EIFS Installer1.4.3 Qualification of Sealant Applicator1.4.4 Qualifications of Third Party Inspector1.4.5 Insulation Board-1.4.6 Pre-In
5、stallation Conference1.5 DELIVERY AND STORAGE1.6 ENVIRONMENTAL CONDITIONS1.7 WARRANTYPART 2 PRODUCTSSECTION 07 24 00 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.1 COMPATIBILITY2.2 SHEATHING BOARD2.2.1 Fiber Reinforced Cement Sheathing Boa
6、rd2.2.2 Glass Mat Gypsum Sheathing Board2.3 ADHESIVE2.4 LATHING AND FURRING2.5 MECHANICAL FASTENERS2.6 THERMAL INSULATION2.6.1 Manufacturers Recommendations2.6.2 Insulation Board2.7 BASE COAT2.8 PORTLAND CEMENT2.9 REINFORCING FABRIC2.10 FINISH COAT2.11 SEALANT PRIMER2.12 ACCESSORIES2.13 JOINT SEALAN
7、T2.14 BOND BREAKER2.15 BACKER RODPART 3 EXECUTION3.1 EXAMINATION3.2 SURFACE PREPARATION3.3 INSTALLATION3.3.1 Sheathing Board3.3.2 Insulation Board3.3.2.1 Mechanically Fastened Insulation Boards3.3.2.2 Adhesively Fastened Insulation Boards3.3.3 Base Coat and Reinforcing Fabric Mesh,3.3.3.1 Class PB S
8、ystems3.3.3.2 Class PM Systems3.3.4 Finish Coat3.4 JOINT SEALING3.4.1 Surface Preparation, Backer Rod, and Primer3.4.2 Sealant3.5 FIELD QUALITY CONTROL3.5.1 Third Party Inspection3.5.2 Inspection Check List3.6 CLEANUP- End of Section Table of Contents -SECTION 07 24 00 Page 2Provided by IHSNot for R
9、esaleNo reproduction or networking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA UFGS-07 24 00 (May 2011)-Preparing Activity: NAVFAC SupersedingUFGS-07 24 00 (August 2008)UFGS-07 24 00 (July 2006) UNIFIED FACILITIES GUIDE SPECIFICATIONReferences are in agreement with UMRL dated Apr
10、il 2011*SECTION 07 24 00EXTERIOR INSULATION AND FINISH SYSTEMS05/11*NOTE: This guide specification covers the requirements for barrier-type and drainable exterior insulation and finish systems (EIFS), Classes PB and PM, which may be applied to concrete or brick masonry, or to wood or metal frame con
11、struction. EIFS are exterior finish systems that include an integral layer of thermal insulation.Adhere to UFC 1-300-02 Unified Facilities Guide Specifications (UFGS) Format Standard when editing this guide specification or preparing new project specification sections. Edit this guide specification
12、for project specific requirements by adding, deleting, or revising text. For bracketed items, choose applicable items(s) or insert appropriate information.Remove information and requirements not required in respective project, whether or not brackets are present.Comments, suggestions and recommended
13、 changes for this guide specification are welcome and should be submitted as a Criteria Change Request (CCR).*NOTE: Do not specify EIFS for areas below grade or in areas subject to abuse by moving vehicles or equipment, such as a loading dock. Avoid the use of EIFS in expected heavy pedestrian traff
14、ic areas. If such use can not be avoided, select an appropriate high-impact resistant system. Avoid exposure of EIFS to standing water or prolonged contact with snow. Do not specify EIFS for other than vertical surfaces, except narrow ledges and window sills where the minimum slope is 25 mm in 50 mm
15、 one inch in 2 inch. Flashing is required at parapet caps.For EIFS directly applied over existing substrate SECTION 07 24 00 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-(brick, concrete), specify preparation of substrate in this section. Fo
16、r EIFS installed over new substrate, specify preparation of substrate under applicable section(s). Substrate must be sound, true, plumb, and within flatness tolerance of EIFS manufacturer, usually not more than 6 mm within 3000 mm 1/4 inch within 10 feet. If existing substrate can not be brought up
17、to these requirements, a new substrate should be provided.For EIFS installed over new sheathing board, provide sheathing in this section. If sheathing is to be installed on metal furring or studs, provide furring or studs in Section 05 40 00 COLD-FORMED METAL FRAMING, specifying EIFS manufacturers t
18、olerance requirements.In marine environments, light gage metal framing is subject to corrosion if water infiltrating through the EIFS is allowed to accumulate in runners. In locations near salt water, do not use metal framing for the support of the substrate or detail carefully to prevent water accu
19、mulation.*NOTE: The coordination of work with other trades is important for the performance of the the EIFS wall assembly, in particular the installation of flashing above windows and door heads, beneath window and door sills, at roof/wall intersections, decks, intersection of lower walls with highe
20、r ones, above projecting features, and at the base of the wall to ensure that where water is likely to penetrate the wall assembly, it will be drained to the exterior at the source of the leak. *NOTE: EIFS provides insulation and exterior finish for both new and renovated buildings. The systems are
21、available in two classes: PB and PM. a. Class PB Systems are typically composed of a 2 mm to 6 mm 1/16 inch to 1/4 inch cementitious or non-cementitious base coat, one or more layers of polymer-coated glass fiber mesh, and a non-cementitious finish coat. PB systems are most commonly used over molded
22、 expanded polystyrene (MEPS) insulation which is adhesively attached to the substrate. The non-cementitious base coat systems have good impact resistance but may be punctured by sharp objects. The MEPS insulation allows water vapor migration, which can either ventilate the system beneficially or all
23、ow moisture into the substrate. Class PB EIFS should not be used in first floor, high traffic areas, or in areas where pedestrians congregate. Where so used, they must have at least one layer of 567 g 20 ounce SECTION 07 24 00 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitte
24、d without license from IHS-,-,-reinforcing fabric mesh followed by one layer of minimum 113 g 4 ounce reinforcing mesh. Class PB systems are the least expensive and most widely used of the two classes.b. Class PM Systems are typically composed of a 6 mm to 9 mm 1/4 inch to 3/8 inch thick, rigid, pol
25、ymer-modified cementitious base coat, a polymer-coated fiber mesh, and a cementitious finish coat. They are most commonly used over an extruded expanded-polystyrene (XEPS) insulation board which is mechanically attached to the substrate. Class PM systems have good puncture resistance, but are suscep
26、tible to damage from blunt impacts. The XEPS insulation allows less water vapor movement.*NOTE: A second type of EIFS, which is commonly referred to as “drainable,“ is available from most EIFS manufacturers. These drainable systems are either Class PB or Class PM systems that are designed to provide
27、 an avenue for flow and drainage of incidental moisture from the wall assembly. Each manufacturer has taken a different design approach to achieve drainage of moisture from their systems. ASTM D2273, Standard Test Method for Determining the Drainage Efficiency of EIFS Clad Wall Assemblies has recent
28、ly been published. Currently there is a limited history of performance for these drainable systems in actual building constructions.The drainable EIFS systems were originally developed as a solution to applying EIFS over water sensitive substrate materials such as wood sheathing and gypsum sheathing
29、 meeting ASTM C79. Wood sheathing, C79 gypsum sheathing, and other water sensitive sheathing materials are not, however, allowed under this specification, and for certain substrate materials (for example, over existing masonry), a drainable system may not be required. *NOTE: The following references
30、 may be used for additional information on EIFS:Guide to EIFS Construction, EIFS Industry Members Association (EIMA), Morrow, GA, 2000.Interim Design Guidance for Exterior Insulation and Finish Systems (EIFS), USACE Technical Instructions, TI 805-15, 2003Nelson, Peter E. and Richard E. Kroll, Exteri
31、or SECTION 07 24 00 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Insulation and Finish Systems (EIFS): Materials, Properties, and Performance, ASTM STP 1269, American Society for Testing and Materials, Philadelphia, 1996.Thomas, Robert G. Jr
32、., Exterior Insulation and Finish System Design Handbook, CMD Associates, Inc., Vashon Island, WA, 1992.Williams, Mark F. and Barbara Lamp Williams, Exterior Insulation and Finish Systems: Current Practices and Future Considerations, ASTM MNL 16, American Society for Testing and Materials, Philadelp
33、hia, 1994.Williams, Mark F. and Richard Lampo, Exterior Insulation and Finish Systems (EIFS): Development, Use, and Performance of, ASTM STP 1187, American Society for Testing and Materials, Philadelphia, 1995.*NOTE: On the drawings, the following information must be shown:1. Locations of EIFS.2. In
34、dicate PB or PM system, color and coarse, medium, or fine finish.3. Wall sections with construction details, including flashings, terminations at openings perimeter, and joints with other materials. 4. Joint layout on elevations. The designer must locate joint spacing and areas within the recommenda
35、tions of at least three qualified EIFS manufacturers. Show all expansion joints at building expansion joints, where substrates change, and where significant structural movement occurs.5. Include location of control joints, which are required for Class PM EIFS to help prevent lamina cracking, on the
36、drawings. Individual areas shall not exceed 14 sqm 150 sqft, with a maximum dimension not exceeding 5500 mm 18 feet and a maximum length to height ratio of 2.5 to 1.0. (Control joints are not typically required for Class PB EIFS. Consult manufacturer for any specific requirements.)6. Joint details,
37、showing back wrapping, base coat, backer rod, and sealant.7. Corner details, including drips at edges of soffits and at undersides of EIFS projections, and details of flashing and its relation to the EIFS and to other building elements and parts. SECTION 07 24 00 Page 6Provided by IHSNot for ResaleN
38、o reproduction or networking permitted without license from IHS-,-,-8. Thermal resistance value (R-Value) for each location.9. If different levels of Impact Resistance are specified, indicate locations where each is required.10. If different thicknesses of insulation board are to be used for archite
39、ctural details, indicate the locations and thicknesses where required. Provide details which show that additional thicknesses are achieved by adding insulation board on top of the continuous underlaying insulation board. *PART 1 GENERAL1.1 REFERENCES*NOTE: Issue (date) of references included in proj
40、ect specifications need not be more current than provided by the latest guide specification. Use of SpecsIntact automated reference checking is recommended for projects based on older guide specifications.*The publications listed below form a part of this specification to the extent referenced. The
41、publications are referred to within the text by the basic designation only.ASTM INTERNATIONAL (ASTM)ASTM B 117 (2009) Standing Practice for Operating Salt Spray (Fog) ApparatusASTM C 1177/C 1177M (2008) Standard Specification for Glass Mat Gypsum Substrate for Use as SheathingASTM C 1186 (2008) Stan
42、dard Specification for Flat Non-Asbestos Fiber Cement SheetsASTM C 1278/C 1278M (2007a) Standard Specification for Fiber-Reinforced Gypsum PanelASTM C 1325 (2008b) Standard Specification for Non-Asbestos Fiber-Mat Reinforced Cement Substrate SheetsASTM C 150/C 150M (2009) Standard Specification for
43、Portland CementASTM C 473 (2010) Physical Testing of Gypsum Panel ProductsASTM C 578 (2010a) Standard Specification for Rigid, Cellular Polystyrene Thermal InsulationASTM C 67 (2009) Standard Test Methods for Sampling SECTION 07 24 00 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-and Testing Brick and Structural Clay TileASTM C 847 (2010a) Standard Specification for Metal LathASTM C 920 (2011) Standard Specification for Elastomeric Joint SealantsASTM D 2247 (2010) Testing Water Resistance of Coatin
