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HomeMy WebLinkAbout07 24 13 Water-Drainage Exterior Insulation and Finish System (EIFS).docPEDCOR SQUARE; BUILDING 5 07 24 13- PEDCOR SQUARE Issue Date 12.18.15 WATER DRAINAGE EIFS PEDCOR SQUARE; BUILDING 5 SECTION 07 24 13 - WATER-DRAINAGE EXTERIOR INSULATION AND FINISH SYSTEM (EIFS) PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section includes water-drainage exterior insulation and finish system (EIFS) applied over glass- matt sheathing with weather barrier. 1.3 SYSTEM DESCRIPTION A. Class PB EIFS: A non-load-bearing, exterior wall cladding system that consists of an insulation board attached adhesively, mechanically, or both to the substrate; an integrally reinforced base coat; and a textured protective finish coat. B. Water-Drainage EIFS: EIFS with a means that allows water entering into an EIFS assembly to drain to the exterior. C. EIFS Panel Components: Individually prefabricated EIFS panels with cladding system to match 1.3.A above; attached mechanically to installed EIFS wall cladding system. 1.4 PERFORMANCE REQUIREMENTS A. EIFS Performance: Comply with the following: 1. Bond Integrity: Free from bond failure within EIFS components or between system and supporting wall construction, resulting from exposure to fire, wind loads, weather, or other in-service conditions. 2. Weather-tightness: Resistant to water penetration from exterior into water-drainage EIFS and assemblies behind it or through them into interior of building that results in deterioration of thermal-insulating effectiveness or other degradation of EIFS and assemblies behind it, including substrates, supporting wall construction, and interior finish, and including a means that allows water entering into an EIFS assembly to drain to the exterior. B. Class PB EIFS: Provide EIFS having physical properties and structural performance that comply with the following: 1. Abrasion Resistance: Sample consisting of 1-inch- thick EIFS mounted on 1/2-inch- thick gypsum board; cured for a minimum of 28 days; and showing no cracking, checking, or loss of film integrity after exposure to 528 quarts of sand when tested per ASTM D 968, Method A. 2. Absorption-Freeze Resistance: No visible deleterious effects and negligible weight loss after 60 cycles per EIMA 101.01. PEDCOR SQUARE; BUILDING 5 07 24 13- PEDCOR SQUARE Issue Date 12.18.15 WATER DRAINAGE EIFS PEDCOR SQUARE; BUILDING 5 3. Accelerated Weathering: Five samples per ICC-ES AC235 showing no cracking, checking, crazing, erosion, rusting, blistering, peeling, delamination, or other characteristics that might affect performance as a wall cladding after testing for 2000 hours when viewed under 5 times magnification per ASTM G 153 or ASTM G 154. 4. Freeze-Thaw: No surface changes, cracking, checking, crazing, erosion, rusting, blistering, peeling, or delamination, or indications of delamination between components when viewed under 5 times magnification after 60 cycles per EIMA 101.01. 5. Mildew Resistance of Finish Coat: Sample applied to 2-by-2-inch clean glass substrate, cured for 28 days, and showing no growth when tested per ASTM D 3273 and evaluated according to ASTM D 3274. 6. Salt-Spray Resistance: No deleterious affects when tested according to ICC-ES AC235. 7. Tensile Adhesion: No failure in the EIFS, adhesive, base coat, or finish coat when tested per EIMA 101.03. 8. Water Penetration: Sample consisting of 1-inch- thick EIFS mounted on 1/2-inch- thick gypsum board, cured for 28 days, and showing no water penetration into the plane of the base coat to expanded polystyrene board interface of the test specimen after 15 minutes at 6.24 lbf/sq. ft. of air pressure difference or 20 percent of positive design wind pressure, whichever is greater, across the specimen during a test period when tested per EIMA 101.02. 9. Water Resistance: Three samples, each consisting of 1-inch- thick EIFS mounted on 1/2- inch- thick gypsum board; cured for 28 days; and showing no cracking, checking, crazing, erosion, rusting, blistering, peeling, or delamination after testing for 14 days per ASTM D 2247. 10. Impact Resistance: Sample consisting of 1-inch- thick EIFS when constructed, conditioned, and tested per EIMA 101.86; and meeting or exceeding the following: a. Medium Impact Resistance: 50 to 89 inch-lb. b. High Impact Resistance: 90 to 150 inch-lb. 11. Drainage: According to ICC-ES AC235. 12. Structural Performance Testing: EIFS assembly and components shall comply with ICC- ES AC235 when tested per ASTM E 330. C. Performance of Prefabricated Panels: Prefabricated panels shall be designed as follows and withstand structural performance indicated for Class PB EIFS and thermal movement limits indicated below without failure due to defective manufacture, fabrication, installation, or other defects in construction. 1. Match performance requirements for EIFS system. 1.5 SUBMITTALS A. Product Data: For each type and component of EIFS indicated. B. Shop Drawings: For EIFS. Include plans, elevations, sections, details. C. Panel Schedule: For prefabricated panel component fabrication. D. Samples. E. Qualification Data: For Installer, fabricator/erector, professional engineer, and testing agency. F. Manufacturer Certificates: Signed by manufacturers certifying that EIFS and joint sealants comply with requirements. PEDCOR SQUARE; BUILDING 5 07 24 13- PEDCOR SQUARE Issue Date 12.18.15 WATER DRAINAGE EIFS PEDCOR SQUARE; BUILDING 5 G. Material or Product Certificates: For cementitious materials and aggregates and for each insulation and joint sealant, from manufacturer. H. Product Test Reports: Based on evaluation of comprehensive tests performed by a qualified testing agency, for each water-/weather-resistive barrier, insulation, reinforcing mesh, joint sealant, and coating. I. Compatibility and Adhesion Test Reports: For joint sealants. J. Field quality-control reports. K. Evaluation Reports: For exterior sheathing, fasteners, water-resistive coating, adhesive, membrane flashing and EIFS (including insulation). L. Maintenance Data: For EIFS to include in maintenance manuals. 1.6 QUALITY ASSURANCE A. Installer Qualifications: An installer who is certified in writing by EIFS manufacturer as qualified to install manufacturer's system using trained workers. 1. Fabricator/Erector: Qualifications: Certified in writing by EIFS manufacturer as qualified to fabricate and erect manufacturer's prefabricated panel system using skilled and trained workers. 2. Refer also to Specification Section 01 40 00 “Quality Requirements.” B. Source Limitations: Obtain EIFS from single source from single EIFS manufacturer and from sources approved by EIFS manufacturer as compatible with system components. C. Fire-Test-Response Characteristics: Provide EIFS and system components with the following fire-test-response characteristics as determined by testing identical EIFS and system components per test method indicated below by UL or another testing and inspecting agency acceptable to authorities having jurisdiction. Identify products with appropriate markings of applicable testing agency. 1. Fire-Resistance Characteristics: Provide materials and construction tested for fire resistance per ASTM E 119. 2. Radiant Heat Exposure: No ignition of EIFS when tested according to NFPA 268. 3. Potential Heat: Acceptable level when tested according to NFPA 259. 4. Surface-Burning Characteristics: Provide insulation board, adhesives, base coats, and finish coats with flame-spread index of 25 or less and smoke-developed index of 450 or less, per ASTM E 84. 1.7 COORDINATION A. Coordinate installation of EIFS with related Work specified in other Sections. 1.8 WARRANTY A. Manufacturer shall provide a written limited material warranty against defective materials. PEDCOR SQUARE; BUILDING 5 07 24 13- PEDCOR SQUARE Issue Date 12.18.15 WATER DRAINAGE EIFS PEDCOR SQUARE; BUILDING 5 B. Refer to Specification Section 07 26 30 "Weather Barriers" for weather barrier warranty information. PART 2 - PRODUCTS 2.1 MANUFACTURERS A. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1. Dryvit Systems, Inc. 2. Sto Corp. 2.2 MATERIALS A. Compatibility: Provide water-resistive coating, adhesive, fasteners, board insulation, reinforcing meshes, base- and finish-coat systems, sealants, and accessories that are compatible with one another and with substrates and approved for use by EIFS manufacturer for Project. B. Exterior glass-matt gypsum sheathing: Not less than 5/8-inch- thick, fiberglass-faced, moisture- resistant gypsum sheathing board complying with ASTM C 1186, Type A, for exterior applications. 1. Fasteners: Refer to Specification Section 06 16 00 "Sheathing" for additional information. 2. Sheathing Joint Compound and Tape: Refer to Specification Section 06 16 00 "Sheathing" for additional information. C. Liquid-Applied Permeable Air Barrier Systems: Refer to Specification Section 07 26 30 "Liquid- Applied Permeable Air Barrier Barriers" for additional information. 1. Joint Tape: Type recommended by air barrier manufacturer for sealing joints between and penetrations through weather barrier. D. Primer/Sealer: Follow written recommendations of weather barrier manufacturer for requirements for use with liquid-applied permeable air barrier assembly. Follow EIFS manufacturer's written recommendations for use of EIFS directly over brick masonry units. E. Flexible-Membrane Flashing: Cold-applied, fully self-adhering, self-healing, rubberized-asphalt and polyethylene-film composite sheet or tape and primer; EIFS manufacturer's standard or product recommended in writing by EIFS manufacturer. Where interfacing, coordinate with weather barrier installation requirements. F. Insulation Adhesive: EIFS manufacturer's standard formulation designed for indicated use; compatible with substrate; with VOC content of 50 g/L or less when calculated according to 40 CFR 59, Subpart D (EPA Method 24); and complying with one of the following: 1. Job-mixed formulation of portland cement complying with ASTM C 150, Type I, and polymer-based adhesive specified for base coat. 2. Factory-blended dry formulation of portland cement, dry polymer admixture, and fillers specified for base coat. 3. Factory-mixed non-cementitious formulation designed for adhesive attachment of insulation to substrates of type indicated, as recommended by EIFS manufacturer. PEDCOR SQUARE; BUILDING 5 07 24 13- PEDCOR SQUARE Issue Date 12.18.15 WATER DRAINAGE EIFS PEDCOR SQUARE; BUILDING 5 G. Molded, Rigid Cellular Polystyrene Board Insulation: Comply with ASTM C 578, Type I; EIFS manufacturer's requirements; and EIMA's "EIMA Guideline Specification for Expanded Polystyrene (EPS) Insulation Board" for most stringent requirements for material performance and qualities of insulation, including dimensions and permissible variations, and the following: 1. Aging: Before cutting and shipping, age insulation in block form by air drying for not less than six weeks or by another method approved by EIMA that produces equivalent results. 2. Flame-Spread and Smoke-Developed Indexes: 25 and 450 or less, respectively, per ASTM E 84. 3. Dimensions: Provide insulation boards not more than 24 by 48 inches and in thickness indicated but not more than 4 inches thick or less than thickness allowed by ASTM C 1397. 4. Board Insulation Closure Blocks: EIFS manufacturer's standard density, size, and configuration. 5. Foam Shapes: Provide with profiles and dimensions indicated on Drawings. 6. Panel Component Foam: 1 lb. EPS only. H. Reinforcing Mesh: Balanced, alkali-resistant, open-weave, glass-fiber mesh treated for compatibility with other EIFS materials, made from continuous multi-end strands with retained mesh tensile strength of not less than 120 lbf/in. per ASTM E 2098; complying with ASTM D 578 and the following: 1. Mesh: a. Standard-Impact Reinforcing Mesh: Not less than 4.0 oz. /sq. yd. b. Intermediate-Impact Reinforcing Mesh: Not less than 10 oz. /sq. yd. c. High-Impact Reinforcing Mesh: Not less than 15 oz. /sq. yd. d. Heavy-Duty Reinforcing Mesh: Not less than 20 oz. /sq. yd. e. Strip Reinforcing Mesh: Not less than 3.75 oz. /sq. yd. f. Detail Reinforcing Mesh: Not less than 4.0 oz. /sq. yd. g. Corner Reinforcing Mesh: Not less than 7.2 oz. /sq. yd. 2. Adhesive: Acrylic based fiber reinforced flexible adhesive and waterproofing to be used to adhere reinforcing mesh. I. Base-Coat Materials: EIFS manufacturer's standard mixture complying with one of the following requirements: 1. Job-mixed formulation of portland cement complying with ASTM C 150, Type I, white or natural color; and manufacturer's standard polymer-emulsion adhesive designed for use with portland cement. 2. Factory-blended dry formulation of portland cement, dry polymer admixture, and inert fillers to which only water is added at Project site. J. Waterproof Adhesive/Base-Coat Materials: EIFS manufacturer's standard waterproof formulation with VOC content of 50 g/L or less when calculated according to 40 CFR 59, Subpart D (EPA Method 24), complying with one of the following: 1. Job-mixed formulation of portland cement complying with ASTM C 150, Type I, white or natural color; and manufacturer's standard polymer-emulsion adhesive designed for use with portland cement. 2. Job-combined formulation of manufacturer's standard polymer-emulsion adhesive and manufacturer's standard dry mix containing portland cement. K. Primer: EIFS manufacturer's standard factory-mixed, elastomeric-polymer primer for preparing base-coat surface for application of finish coat. L. Finish-Coat Materials: EIFS manufacturer's standard acrylic-based coating with enhanced mildew resistance complying with the following: PEDCOR SQUARE; BUILDING 5 07 24 13- PEDCOR SQUARE Issue Date 12.18.15 WATER DRAINAGE EIFS PEDCOR SQUARE; BUILDING 5 1. Factory-mixed formulation of polymer-emulsion binder, colorfast mineral pigments, sound stone particles, and fillers. 2. Sealer: Manufacturer's waterproof, clear acrylic-based sealer for protecting finish coat. 3. Colors: As selected by Architect from manufacturer's full range. M. Water: Potable. N. Trim Accessories: Type as designated or required to suit conditions indicated and to comply with EIFS manufacturer's written instructions; manufactured from UV-stabilized PVC; and complying with ASTM D 1784, manufacturer's standard Cell Class for use intended, and ASTM C 1063. 1. Casing Bead: Prefabricated, one-piece type for attachment behind insulation, of depth required to suit thickness of coating and insulation, with face leg perforated for bonding to coating and back leg. 2. Drip Screed/Track: Prefabricated, one-piece type for attachment behind insulation with face leg extended to form a drip, of depth required to suit thickness of coating and insulation, with face leg perforated for bonding to coating and back leg. 3. Weep Screed/Track: Refer to Specification Section 04 20 00 "Unit Masonry" 2.12 and 2.13 for additional information. 4. Expansion Joint: Prefabricated, one-piece V profile; designed to relieve stress of movement. 5. Window Sill Flashing: Prefabricated type for both flashing and sloping sill over framing beneath windows; with end and back dams; designed to direct water to exterior. Refer to Specification Section 07 26 30 "Weather Barrier" for additional information. 6. Parapet Cap Flashing: Type for both flashing and covering parapet top with design complying with ASTM C 1397. 7. Panel Component Embedded Track: Aluminum 6065 T5 or T6. Hat channel inserted and glued into panel. Panel is attached to substrate with a screwed connection. 2.3 ELASTOMERIC SEALANTS A. General: Elastomeric Sealant Products: Provide EIFS manufacturer's listed and recommended chemically curing, elastomeric sealant that is compatible with joint fillers, joint substrates, and other related materials, and complies with requirements for products and testing indicated in ASTM C 1481 and with requirements in Section 07 92 00 "Joint Sealants" for products corresponding to description indicated below: 1. Multi-component, non-sag urethane sealant. 2. Single-component, non-sag, neutral-curing silicone sealant. 3. Provide sealants, for use inside the weatherproofing system, with a VOC content of 250 g/L or less when calculated according to 40 CFR 59, Subpart D (EPA Method 24). B. Preformed Foam Sealant Products: Provide sealant compatible with adjacent materials and complying with requirements in Section 07 92 00 "Joint Sealants." C. Sealant Color: As selected by Architect from manufacturer's full range. D. Products: 1. Single-Component, Non-sag, Neutral-Curing Silicone Joint Sealant: ASTM C 920, Type S, Grade NS, Class 100/50, for Use NT. a. Products: Subject to compliance with requirements, provide one of the following: 1) Dow Corning Corporation; 790. 2) Tremco Incorporated; Spectrem 1. PEDCOR SQUARE; BUILDING 5 07 24 13- PEDCOR SQUARE Issue Date 12.18.15 WATER DRAINAGE EIFS PEDCOR SQUARE; BUILDING 5 2. Single-Component, Non-sag, Neutral-Curing Silicone Joint Sealant: ASTM C 920, Type S, Grade NS, Class 50, for Use NT. a. Products: Subject to compliance with requirements, provide one of the following: 1) Pecora Corporation; 890. 2) Tremco Incorporated; Spectrem 3. 2.4 MIXING A. General: Comply with EIFS manufacturer's requirements for combining and mixing materials. PART 3 - EXECUTION 3.1 EXTERIOR GLASS-MATT GYPSUM SHEATHING INSTALLATION A. Exterior Glass-matt Gypsum Sheathing: Install on metal framing to comply with manufacturer's written instructions and evaluation report acceptable to authorities having jurisdiction. 3.2 EIFS INSTALLATION, GENERAL A. Comply with EIFS manufacturer's written instructions for installation of EIFS as applicable to each type of substrate indicated. 3.3 SUBSTRATE PROTECTION APPLICATION A. Primer/Sealer: Apply over brick masonry substrates as directed by EIFS manufacturer to protect substrates from degradation and where required by EIFS manufacturer for improving adhesion of insulation to substrate. B. Liquid-Applied Permeable Air Barriers: Apply over substrates to protect substrates from degradation and to provide water-/weather-resistive barrier. C. Waterproof Adhesive/Base Coat: Apply over sloped surfaces, window sills, parapets, and where indicated on Drawings or otherwise directed to protect substrates from degradation. D. Flexible-Membrane Flashing: Install over weather-resistive barrier, applied and lapped to shed water; seal at openings, penetrations, terminations, and where indicated by EIFS manufacturer's written instructions to protect wall assembly from degradation. Prime substrates, if required, and install flashing to comply with EIFS manufacturer's written instructions and details. 3.4 TRIM INSTALLATION A. Trim: Apply trim accessories at perimeter of EIFS, at expansion joints, at window sills, and elsewhere as indicated, according to EIFS manufacturer's written instructions. Coordinate with installation of insulation. PEDCOR SQUARE; BUILDING 5 07 24 13- PEDCOR SQUARE Issue Date 12.18.15 WATER DRAINAGE EIFS PEDCOR SQUARE; BUILDING 5 3.5 INSULATION INSTALLATION - ADHESIVE ATTACHMENT A. Board Insulation: Adhesively attach insulation to substrate in compliance with ASTM C 1397, EIFS manufacturer's written instructions, and the following: 1. Apply adhesive to insulation by notched-trowel method in a manner that results in coating the entire surface of weather barrier at sheathing with adhesive, once insulation is adhered to sheathing unless EIFS manufacturer's written instructions specify using primer/sealer with ribbon-and-dab method. Apply adhesive to a thickness of not less than 1/4 inch for factory mixed and not less than 3/8 inch for field mixed, measured from surface of insulation before placement. 2. Press and slide insulation into place. Apply pressure over the entire surface of insulation to accomplish uniform contact, high initial grab, and overall level surface. 3. Allow adhered insulation to remain undisturbed for period recommended by EIFS manufacturer, but not less than 24 hours, before installing mechanical fasteners, beginning rasping and sanding insulation, or applying base coat and reinforcing mesh. 4. Apply insulation over drainage mat and dry substrates in courses with long edges of boards oriented horizontally. 5. Begin first course of insulation from a level base line and work upward. 6. Begin first course of insulation from screed/track and work upward. Work from perimeter casing beads toward interior of panels if possible. 7. Stagger vertical joints of insulation boards in successive courses to produce running bond pattern. Locate joints so no piece of insulation is less than 12 inches wide or 6 inches high. Offset joints not less than 6 inches from corners of window and door openings and not less than 4 inches from aesthetic reveals. a. Adhesive Attachment: Offset joints of insulation not less than 6 inches from horizontal and 4 inches from vertical joints in sheathing. 8. Interlock ends at internal and external corners. 9. Abut insulation tightly at joints within and between each course to produce flush, continuously even surfaces without gaps or raised edges between boards. If gaps greater than 1/16 inch occur, fill with insulation cut to fit gaps exactly; insert insulation without using adhesive or other material. 10. Cut insulation to fit openings, corners, and projections precisely and to produce edges and shapes complying with details indicated. 11. Rasp or sand flush entire surface of insulation to remove irregularities projecting more than 1/32 inch from surface of insulation and to remove yellowed areas due to sun exposure; do not create depressions deeper than 1/16 inch. 12. Cut aesthetic reveals in outside face of insulation with high-speed router and bit configured to produce grooves, rabbets, and other features that comply with profiles and locations indicated. Do not reduce insulation thickness at aesthetic reveals to less than 3/4 inch. 13. Install foam shapes and attach to sheathing or structure as indicated. 14. Interrupt insulation for expansion joints where indicated. 15. Install insulation closure blocks using ribbon-and-dab method to create air zones where indicated. 16. Form joints for sealant application by leaving gaps between adjoining insulation edges and between insulation edges and dissimilar adjoining surfaces. Make gaps wide enough to produce joint widths indicated after encapsulating joint substrates with base coat and reinforcing mesh. 17. Form joints for sealant application with back-to-back casing beads for joints within EIFS and with perimeter casing beads at dissimilar adjoining surfaces. Make gaps between casing beads and between perimeter casing beads and adjoining surfaces of width indicated. PEDCOR SQUARE; BUILDING 5 07 24 13- PEDCOR SQUARE Issue Date 12.18.15 WATER DRAINAGE EIFS PEDCOR SQUARE; BUILDING 5 18. After installing insulation and before applying field-applied reinforcing mesh, fully wrap board edges. Cover edges of board and extend encapsulating mesh not less than 2-1/2 inches over front and back face unless otherwise indicated on Drawings. 19. Treat exposed edges of insulation as follows: a. Except for edges forming substrates of sealant joints, encapsulate with base coat, reinforcing mesh, and finish coat. b. Encapsulate edges forming substrates of sealant joints within EIFS or between EIFS and other work with base coat and reinforcing mesh. c. At edges trimmed by accessories, extend base coat, reinforcing mesh, and finish coat over face leg of accessories. 20. Coordinate installation of flashing and insulation to produce wall assembly that does not allow water to penetrate behind flashing and water-/weather-resistive barrier. B. Expansion Joints: Install at locations indicated, where required by EIFS manufacturer, and as follows: 1. At expansion joints in substrates behind EIFS. 2. Where EIFS adjoin dissimilar substrates, materials, and construction, including other EIFS. 3. At floor lines in multilevel wood-framed construction. 4. Where wall height or building shape changes. 5. Where EIFS manufacturer requires joints in long continuous elevations. 3.8 BASE-COAT INSTALLATION A. Base Coat: Apply to exposed surfaces of insulation and foam shapes in minimum thickness recommended in writing by EIFS manufacturer, but not less than 1/16-inch dry-coat thickness. B. Reinforcing Mesh: Embed type indicated below in wet base coat to produce wrinkle-free installation with mesh continuous at corners and overlapped not less than 2-1/2 inches or otherwise treated at joints to comply with ASTM C 1397 and EIFS manufacturer's written instructions. Do not lap reinforcing mesh within 8 inches of corners. Completely embed mesh, applying additional base- coat material if necessary, so reinforcing-mesh color and pattern are not visible. 1. Standard-impact reinforcing mesh unless otherwise indicated. 2. Intermediate-impact reinforcing mesh where indicated. 3. High-impact reinforcing mesh where indicated. 4. Heavy-duty reinforcing mesh where indicated. C. Double-Layer Reinforcing Mesh Application: Where indicated, apply second base coat and second layer of standard or intermediate-impact reinforcing mesh, overlapped not less than 2- 1/2 inches or otherwise treated at joints to comply with ASTM C 1397 and EIFS manufacturer's written instructions in same manner as first application. Do not apply until first base coat has cured. D. Additional Reinforcing Mesh: Apply strip reinforcing mesh around openings extending 4 inches beyond perimeter. Apply additional 9-by-12-inch strip reinforcing mesh diagonally at corners of openings (re-entrant corners). Apply 8-inch- wide strip reinforcing mesh at both inside and outside corners unless base layer of mesh is lapped not less than 4 inches on each side of corners. 1. At aesthetic reveals, apply strip reinforcing mesh not less than 8 inches wide. 2. Embed strip reinforcing mesh in base coat before applying first layer of reinforcing mesh. PEDCOR SQUARE; BUILDING 5 07 24 13- PEDCOR SQUARE Issue Date 12.18.15 WATER DRAINAGE EIFS PEDCOR SQUARE; BUILDING 5 E. Foam Shapes: Fully embed reinforcing mesh in base coat. F. Double Base-Coat Application: Where indicated, apply second base coat in same manner and thickness as first application except without reinforcing mesh. Do not apply until first base coat has cured. G. Flashing and Coping Mesh: Where horizontal surface areas at least 2 inches deep occur, slope the surface at 1:1 minimum. In lieu of using metal or pvc coping or flashing, apply 2 layers of high impact mesh adhered to EIFS base coat with acrylic based fiber reinforced flexible adhesive and waterproofing, followed by a primer coat and an EIFS top coat. 3.9 FINISH-COAT INSTALLATION A. Primer: Apply over dry base coat according to EIFS manufacturer's written instructions. 1. Panelized Components: At any ledge deeper than 2 inches provide a coating of Drivit "Watertight" or equal product approved by Architect before finish coat is applied. B. Finish Coat: Apply over dry primed base coat, maintaining a wet edge at all times for uniform appearance, in thickness required by EIFS manufacturer to produce a uniform finish of color and texture matching approved sample and free of cold joints, shadow lines, and texture variations. 1. Texture: As selected by Architect from manufacturer's full range. C. Sealer Coat: Apply over dry finish coat, in number of coats and thickness required by EIFS manufacturer. D. Surfaces that project more than 2 inches and have slope shall be coated with two additional coats of base coat materials as referenced in 2.2.I. above. 3.10 EIFS PANEL COMPONENT FABRICATION A. Prefabricate panels of proper thickness and configuration for each individual component. 1. Shape and size each component per Architect reviewed shop drawings. 2. Apply base and finish coats per subsections 3.7, 3.8, 3.9 of this specification section. B. Attachment Channels: 1. Score channel grooves into back of panel at locations indicated reviewed shop drawings. 2. Insert specified aluminum hat channel into adhesive covered grooves. a. Use designated adhesive. 3.11 INSTALLATION OF EIFS PANEL COMPONENTS A. Align and mark panel channel attachment points on building substrate. B. Install at locations indicated. 1. EIFS installer shall engineer and provide panel component attachment points. C. Anchor panels to substrate with 1 1/4 inch S12 self-drilling galvanized screws. Align panel components and anchor through substrate into panel component. PEDCOR SQUARE; BUILDING 5 07 24 13- PEDCOR SQUARE Issue Date 12.18.15 WATER DRAINAGE EIFS PEDCOR SQUARE; BUILDING 5 3.12 INSTALLATION OF JOINT SEALANTS A. Prepare joints and apply sealants, of type and at locations indicated, to comply with applicable requirements in Section 07 92 00 "Joint Sealants" and in ASTM C 1481. 1. Apply joint sealants after base coat has cured but before applying finish coat. 2. Clean surfaces to receive sealants to comply with indicated requirements and EIFS manufacturer's written instructions. 3. Apply primer recommended in writing by sealant manufacturer for surfaces to be sealed. 4. Install sealant backing to control depth and configuration of sealant joint and to prevent sealant from adhering to back of joint. 5. Apply masking tape to protect areas adjacent to sealant joints. Remove tape immediately after tooling joints, without disturbing joint seal. 6. Recess sealant sufficiently from surface of EIFS so an additional sealant application, including cylindrical sealant backing, can be installed without protruding beyond EIFS surface. 3.13 QUALITY CONTROL A. Special Inspections: Owner will engage a qualified special inspector to perform the following special inspections: 1. According to ICC-ES AC235. B. Testing Agency: Owner will engage a qualified testing agency to perform tests and inspections. C. EIFS Tests and Inspections: For the following: 1. According to ICC-ES AC235. D. Remove and replace EIFS where test results indicate that EIFS do not comply with specified requirements. E. Prepare test and inspection reports. END OF SECTION 07 24 13