VA 07 24 00-2011 EXTERIOR INSULATION AND FINISH SYSTEMS.pdf

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1、10-11 07 24 00 - 1 SECTION 07 24 00 EXTERIOR INSULATION AND FINISH SYSTEMS SPEC WRITER NOTES: 1. Detail wall section, base edge, expansion and control joint conditions for each system. Show locations of expansion and control joints on drawings. Show water management details including barrier membran

2、e, flashing, weeps etc. 2. Specify one or more of the finishes, delete the others. 3. Verify if compliance with local codes is required for EIFS. PART 1 - GENERAL 1.1 DESCRIPTION Exterior Finish Systems specified in this section consist of a Direct Exterior Finish Systems (DEFS), / Unit finishes suc

3、h as ceramic tile, thin brick, marble tile, stone tile / simulated synthetic stucco finish / and / Exterior Insulation and Finish System (EIFS) / all of which are applied over cement board sheathing. 1.2 RELATED WORK A. Cement Board: Section 06 16 63, CEMENTITIOUS SHEATHING. B. Ceramic Tile: Section

4、 09 30 13, CERAMIC TILING. 1.3 SUBMITTALS A. Submit in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES. B. Samples: Two 300 mm (one-foot) square samples of the / EIFS / simulated synthetic stucco / finishes over cement board identical to the proposed installation in thickn

5、ess, color, texture / insulation / and workmanship. C. Test Reports and Manufacturers Literature 1. Manufacturers literature and instructions for installation of the system. Include manufacturers recommended details for corner treatment, sills, soffits, dentils, quoins, lintels, openings and other s

6、pecial applications. 2. Summary of test results by the Exterior Finish System manufacturer to substantiate compliance with the specified performance requirements. Furnish complete test reports as required. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-

7、,-,-10-11 07 24 00 - 2 3. Statement by Exterior Finish System manufacturer that all components of the system proposed for use on this project are approved by that manufacturer. 4. Statement by the Installer of the Exterior Finish System that they are experienced with the installation, having done at

8、 least three (3) projects using this system and can furnish names and locations of these projects if required. 1.4 DELIVERY AND STORAGE A. Deliver materials in unopened packages with manufacturers labels intact, legible and grade seals unbroken. B. Store and handle in strict compliance with manufact

9、urers instructions. Protect from damage. C. Remove from premises any damaged or deteriorated material. 1.5 ENVIRONMENTAL CONDITIONS Unless a higher temperature is required by the system manufacturer, the ambient air temperature shall be 7 degrees Celsius (45 degrees F) or greater and rising at the t

10、ime of installation of the system and shall be predicted to remain at 7 degrees Celsius (45 degrees F) or greater for at least 24 hours after installation. 1.6 WARRANTY Exterior Finish system shall be warranted against water leakage past the weather resistive barrier and other defects in materials a

11、nd workmanship, and shall be subject to the terms of Article “Warranty of Construction”, FAR clause 52.246-21, except that the warranty period shall be ten years. 1.7 APPLICABLE PUBLICATIONS A. Publications listed below form a part of this specification to the extent referenced. Publications are ref

12、erenced in the text by the basic designation only. B. American Society for Testing and Materials (ASTM): B117-09 Operating Salt Spray (Fog) Apparatus C67-09 . Sampling and Testing Brick and Structural Clay Tile C177-10 Steady-State Heat Flux measurements and Thermal Transmission Properties by Means

13、of the Guarded-Hot-Plate Apparatus C297-10 Flatwise Tensile Strength of Sandwich Constructions Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-10-11 07 24 00 - 3 C578-10 Rigid, Cellular Polystyrene Thermal Insulation C666-03(R2008) . Resistance of Co

14、ncrete to Rapid Freezing and Thawing C920-11 Elastomeric Joint Sealants D968-10 Abrasion Resistance of Organic Coatings by Falling Abrasive D2794-93(R2010) Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact) E84-10 . Surface Burning Characteristics of Building Materials E96-1

15、0 . Water Vapor Transmission of Materials E108-10 Fire Tests of Roof Coverings E330-02(R2010) . Structural Performance of Exterior Windows, Curtain Walls, and Doors by Uniform Static Air Pressure Difference E331-00 Water Penetration of Exterior Windows, Curtain Walls, and Doors by Uniform Static Air

16、 Pressure Difference G90-10 . Accelerated Outdoor Weathering of Nonmetallic Materials Using Concentrated Natural Sunlight C. Exterior Insulation Manufacturers Association (EIMA) 101.86-1992 Resistance of Exterior Insulation and Finish Systems to the Effects of Rapid Deformation (Impact) PART 2 PRODU

17、CTS SPEC WRITER NOTES: 1. Select one or more of the following finishes delete others. 2. A water resistant membrane such as 15 lbs. Asphalt felt or equivalent is required behind the cement board sheathing. /2.1 SYNTHETIC STUCCO A. Description: Reinforced cement board joints, synthetic stucco base co

18、at and simulated stucco finish coat applied directly to the cement board. B. Joint Reinforcement: 1. Reinforcing tape: Minimum 100 mm (4 inch) wide, polymer coated, open mesh glass fiber tape. 2. Tape embedding material: Ready-to-mix Portland cement mortar base coat containing dry latex polymers. Pr

19、ovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-10-11 07 24 00 - 4 C. Accessories: Trim, control joints and corner beads as recommended by Exterior Finish System manufacturer. D. Stucco finish: 1. Base coat: Ready-to-mix, Portland cement mortar contain

20、ing dry latex polymers. 2. Finish coat: Pre-colored, ready-mixed, polymeric coating. 3. Performance requirements: Property As Required Test Method Requirement Surface Burning Characteristics ASTM E 84 Class A Abrasion Resistance ASTM D 968 500 liters of light smoothing. No loss of film integrity. Bo

21、nd Strength (with cement board) ASTM C 297 50 psi Salt Spray Resistance ASTM B 117 300 hours exposure. No deleterious effects Freeze/Thaw Resistance (with cement board) ASTM C 666 proc. B 100 Cycles. No deterioration, no delamination Accelerated Weathering ASTM G 90 2000 hours. No deterioration Rapi

22、d Deformation ASTM D2794 No cracking or impact failure E. Sealant: ASTM C 920, material having a minimum joint movement of 50% with 100% recovery. Type, grade and use shall be as recommended by the sealant manufacturer./ /2.2 UNIT FINISH: / CERAMIC TILE / THIN BRICK / _ / SPEC WRITER NOTE: Where uni

23、t finish is used as a feature with stucco, specify stucco base coat per 2.1-D.1 over entire surface of cement board. Then apply skim coat, bond coat and unit finish as specified below. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-10-11 07 24 00 -

24、5 A. Description: Reinforced cement board joints, skim coat and bonding coat applied directly to cement board ready to receive unit finish and grout. B. Joint Reinforcement: 1. Reinforcing tape: Minimum 4“ wide, polymer coated, open mesh glass fiber tape. 2. Tape Embedding Material: Portland Cement

25、latex fortified mortar per ANSI A 118.4, ready-to-mix containing dry latex polymers. C. Accessories: Trim, control joints and corner beads as recommended by Exterior Finish System manufacturer. /D. Tile: Exterior grade ceramic, quarry or thin stone tiles per ANSI A 137.1, approved by ceramic tile ma

26、nufacturer for exterior use with weight limited to 0.5 kg per 100 cm2 (10 lb/sf) and size to 19 mm X 450 mm x 450 mm (3/4“ X 18“ X 18“). (See Section 09 30 13, CERAMIC TILING)/. /D. Brick: Kiln-fired brick not exceeding 19mm (3/4“) thick with weight not exceeding 0.5 Kg per 100 cm2 (10 1b/sf.), appr

27、oved by brick manufacturer for exterior use./ E. Grout: Portland Cement based latex fortified grout per ANSI A 118.6, ready-to-mix containing dry latex polymers. F. Sealant: ASTM C 920; material having a minimum joint movement of 50% with 100% recovery. Tape, grade and use shall be as recommended by

28、 the sealant manufacturer. /2.3 EXTERIOR INSULATION AND FINISH SYSTEM (EIFS) SPEC WRITER NOTES: 1. The great variety of EIFS systems offered, even within the same type, make it imperative that the Architect substantiate compliance with the performance requirements of these specifications. 2. Do not

29、specify EIFS in areas subject to physical abuse such as, loading areas, work areas, high traffic areas, etc. Use the Direct Exterior Finish System (DEFS). 3. Do not specify EIFS on horizontal surfaces exposed to the weather. 4. Joint reinforcement of substrate under EIFS is not necessary. 5. Follow

30、manufacturers directions for mechanical fasteners for PB system. 6. Select color and texture of finish. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-10-11 07 24 00 - 6 7. Check local building codes for additional requirements. A. Description: The

31、PB system consists of Type I molded rigid polystyrene insulation adhesively adhered to the sheathing and finished with a glass-fiber-mesh reinforced based-coat and a textured finish coat. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-10-11 07 24 00

32、 - 7 B. Performance Requirements: TEST TEST METHOD REQUIREMENT Flame Spread (Test samples shall include base coat, fabric, finish mounted on non- combustible substrate) ASTM E84 Flame spread of 25 or less. Smoke developed rating 450 or less. Full Scale Wall Fire Test ASTM E108 No significant surface

33、 flaming or propagation of vertical or lateral flames Impact Resistance (Sample shall be cured. Finish, base coat and fabric over 25mm (1 inch) insulation typical of project application) EIMA 101.86 (Hemispherical Head Test) /Standard Impact Resistance/ 2.83 to 5.54J (25-49 inch-lbs) Medium Impact R

34、esistance/ 5.65 to 10.1J 50-89 inch lbs High Impact Resistance/ 10.2 to 17J (90-150 inch-lbs) Ultra High Impact Resistance/ Over 17.1J (Over 150 inch-lbs.) - No broken reinforcing fabric Structural Performance (Test panels 1200 mm x 1200 mm (4 feet by 4 feet) typical of project application) ASTM E33

35、0 No permanent deformation, delamination or deterioration for positive and negative pressures as required. Water Penetration ASTM E331 No Water penetration Abrasion Resistance ASTM D968 500 liters of sand-slight smoothing - no loss of film integrity Accelerated Weathering ASTM G90 2000 hours. No det

36、erioration Salt Spray Resistance ASTM B117 Withstand 300 hours. No deleterious effects. Water Vapor ASTM E96 Not more than 18 grains an hour per square foot. Absorption-Freeze-Thaw (Pre-weighed 100 mm x 200 mm (4“ by 8“) specimens; 25 mm (1“) insulation, faced with finish coat cured and stored in ai

37、r; tested with edges and back ASTM C67 50 Cycles: 20 hrs. at - 9 deg C ; 4-hr. thaw in water After 50 cycles Total weight gain of not more than 6.2 grams. No checking splitting, or cracking. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-10-11 07 24

38、 00 - 8 open.) C. Adhesive: Manufacturers standard product including primer as required compatible with sheathing. D. Insulation: 1. Thermal Resistance: Thermal resistance (R-value), as indicated, measured by ASTM C177. 2. Insulating Material: ASTM C578, as recommended by EIFS manufacturer and treat

39、ed to be compatible with EIFS components. Age insulation a minimum of 6 weeks prior to installation. 3. Provide Type I Molded Expanded Polystyrene (MEPS) insulation board for Type PB systems, in sizes as required except no larger than 600 mm X 1200 mm (24 X 48 inches) boards, and not more than 100 m

40、m (4 inches) in thickness. E. Create a means of drainage between the insulation board and cement board sheathing. F. All penetrations and terminations shall be flashed. G. Mechanical Anchors: As recommended by the EIFS manufacturer. H. Accessories: Conform to the recommendations of the EIFS manufact

41、urer, including trim, edging, anchors, expansion joints, and other items required for proper installation of the EIFS. All metal items and fasteners to be corrosion resistant. SPEC WRITER NOTE: Reinforcing fabric weight varies greatly by manufacturer, type of system and Impact Resistance requirement

42、s. I. Reinforcing Fabric: Balanced, open weave, glass fiber fabric made from twisted multi-end strands specifically treated for compatibility with the other materials of the system. Minimum weight 4.3 oz/sq. yd. J. Base Coat: For PB system, manufacturers standard product. Minimum thickness of 1-1/2

43、times reinforcing fabric thickness but not less than 2.4 mm (3/32 inches) wet thickness. K. Finish Coat: For PB system, manufacturers standard product. Minimum thickness 1.6 mm (1/16 inch), complying with Performance Requirements in paragraph B. L. Sealant: ASTM C 920; material having a minimum join

44、t movement of 50% with 100% recovery. Type, grade and use shall be as recommended by the sealant manufacturer. When required, primer, bond breaker and backer Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-10-11 07 24 00 - 9 rods shall be non-stainin

45、g as recommended by the sealant manufacturer. Do not use absorptive materials as backer rods./ PART 3 EXECUTION 3.1 INSPECTION Examine substrate, opening supports and conditions under which this work is to be performed. Notify Resident Engineer in writing of conditions detrimental to the proper comp

46、letion of this work. Do not proceed with work until unsatisfactory conditions have been corrected. 3.2 CONTROL JOINTS A. See drawings for location of building control joints and surface control joints. Install surface control joints as follows: /B. Direct Exterior Finish: Install at 6 meters (20 fee

47、t) o.c. maximum in either direction, erecting the continuous vertical joints first at building expansion joints, intersection of dissimilar substrates or finishing materials where concentrated stresses or movement is anticipated. Leave a 13 mm (1/2“) minimum continuous gap between board panels to re

48、ceive control joint./ /B. Unit Finish: Install at 5 meters (16 feet) o.c. maximum in either direction, or at a lesser spacing as recommended by tile and brick manufacturer, erecting the continuous vertical joints first. Leave at 13 mm (1/2“) minimum, continuous gap between board panels to receive co

49、ntrol joint or sealant backer and sealant./ SPEC WRITER NOTE: 1. EIFS Class PB systems can often be installed with continuous surfaces interrupted only where expansion and control joints occur in the building. 2. Follow EIFS manufacturer recommendation for locating control joints. /B. Exterior Insulation and Finish