1. ALL exterior wall framing/stud-furring shall have thermal batt insulation min. of R-15 at 3-5/8 studs.

Transcription

1 SECTION THERMAL INSULATION 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: 1. Foam-plastic board insulation. 2. Glass-fiber blanket insulation. 3. Spray polyurethane foam insulation. 4. Concealed building insulation. 5. Exposed building insulation. 6. Vapor retarders. 7. Sound attenuation insulation. B. Related Sections: 1. Section "Unit Masonry" for insulation installed in cavity walls. 2. Section "Fire-Resistive Joint Systems" for insulation installed as part of a perimeter fire-resistive joint system. 3. Section Standing-Seam Metal Roof Panels for roof deck insulation. 1.3 PROJECT DESCRIPTION and REQUIREMENTS 1. ALL exterior wall framing/stud-furring shall have thermal batt insulation min. of R-15 at 3-5/8 studs. 2. Infill framing at Gable End Truss Framing shall provide 6 R-19 Batt insulation. 3. ALL interior wall framing/partitions shall include Sound Batt insulation based on thickness of wall. Full Height of wall to underside of deck. 4. Fill all wall cavity voids with insulation. 5. All Thermal Batt insulation shall have Vapor barriers installed per manufacturer s recommendations. 6. All underside of roof deck applications shall provide Foamed-In-Place insulation and at Truss end framing down to termination at top of exterior wall framing. Typical. See related specification. 7. See Roofing over deck insulation requirements, specification. 8. Alternate Bid for under slab rigid insulation. THERMAL INSULATION

2 1.4 PERFORMANCE REQUIREMENTS 1. Plenum Rating: Provide glass-fiber insulation where indicated in ceiling plenums whose test performance is rated as follows for use in plenums as determined by testing identical products per "Erosion Test" and "Mold Growth and Humidity Test" described in UL 181, or on comparable tests from another standard acceptable to authorities having jurisdiction. 1. Erosion Test Results: Insulation shows no visible evidence of cracking, flaking, peeling, or delamination of interior surface of duct assembly, after testing for 4 hours at 2500-fpm air velocity. 2. Mold Growth and Humidity Test Results: Insulation shows no evidence of mold growth, delamination, or other deterioration due to the effects of high humidity, after inoculation with Chaetomium globosium on all surfaces and storing for 60 days at 100 percent relative humidity in the dark. 1.5 ACTION SUBMITTALS A. Product Data: For each type of product indicated. 1.6 INFORMATIONAL SUBMITTALS A. Product Test Reports: Based on evaluation of comprehensive tests performed by a qualified testing agency, for each product. B. Research/Evaluation Reports: For foam-plastic insulation, from ICC-ES. 1.7 QUALITY ASSURANCE A. Surface-Burning Characteristics: As determined by testing identical products according to ASTM E 84 by a qualified testing agency. Identify products with appropriate markings of applicable testing agency. 1.8 DELIVERY, STORAGE, AND HANDLING A. Protect insulation materials from physical damage and from deterioration due to moisture, soiling, and other sources. Store inside and in a dry location. Comply with manufacturer's written instructions for handling, storing, and protecting during installation. B. Protect foam-plastic board insulation as follows: 1. Do not expose to sunlight except to necessary extent for period of installation and concealment. 2. Protect against ignition at all times. Do not deliver foam-plastic board materials to Project site before installation time. 3. Quickly complete installation and concealment of foam-plastic board insulation in each area of construction. THERMAL INSULATION

3 PART 2 - PRODUCTS 2.1 FOAM-PLASTIC BOARD INSULATION A. Extruded-Polystyrene Board Insulation: ASTM C 578, of type and minimum compressive strength indicated below, with maximum flame-spread and smoke-developed indexes of 75 and 450, respectively, per ASTM E Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: a. DiversiFoam Products. b. Dow Chemical Company (The). c. Owens Corning. d. Pactiv Building Products. 2. Type IV, 25 psi. B. Foil-Faced, Polyisocyanurate Board Insulation: ASTM C 1289, Type I, Class 1, with maximum flame-spread and smoke-developed indexes of 75 and 450, respectively, per ASTM E Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: a. Atlas Roofing Corporation. b. Dow Chemical Company (The). c. Rmax, Inc. 2.2 GLASS-FIBER BLANKET INSULATION A. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: 1. CertainTeed Corporation. 2. Guardian Building Products, Inc. 3. Johns Manville. 4. Knauf Insulation. 5. Owens Corning. B. Unfaced, Glass-Fiber Blanket Insulation: ASTM C 665, Type I; with maximum flame-spread and smoke-developed indexes of 25 and 50, respectively, per ASTM E 84; passing ASTM E 136 for combustion characteristics. C. Provide R-15 and R-19 Thermal insulation at exterior walls. Coordinate with framing size for application locations. D. Provide Sound Batt insulation at all interior framed Partitions. 2.3 SPRAY POLYURETHANE FOAM INSULATION A. Open-Cell Polyurethane Foam Insulation: Spray-applied polyurethane foam using water as a blowing agent, with maximum flame-spread and smoke-developed indexes of 75 and 450, THERMAL INSULATION

4 respectively, per ASTM E 84. Coordinate with Spray Foam installer and refer to Foamed in Place specifications. 2.4 VAPOR RETARDERS A. Fire-Retardant, Reinforced-Polyethylene Vapor Retarders: 2 outer layers of polyethylene film laminated to an inner reinforcing layer consisting of either nonwoven grid of nylon cord or polyester scrim and weighing not less than 22 lb/1000 sq. ft., with maximum permeance rating of perm and with flame-spread and smoke-developed indexes of not more than 5 and 60, respectively. 1. Products: a. Raven Industries Inc.; DURA-SKRIM 2FR. b. Reef Industries, Inc.; Griffolyn T-55 FR. B. Vapor-Retarder Tape: Pressure-sensitive tape of type recommended by vapor-retarder manufacturer for sealing joints and penetrations in vapor retarder. C. Vapor-Retarder Fasteners: Pancake-head, self-tapping steel drill screws; with fender washers. D. Single-Component Nonsag Urethane Sealant: ASTM C 920, Type I, Grade NS, Class 25, Use NT related to exposure, and Use O related to vapor-barrier-related substrates. E. Adhesive for Vapor Retarders: Product recommended by vapor-retarder manufacturer and with demonstrated capability to bond vapor retarders securely to substrates indicated. 2.5 INSULATION FASTENERS A. Adhesively Attached, Spindle-Type Anchors: Plate welded to projecting spindle; capable of holding insulation of specified thickness securely in position indicated with self-locking washer in place. B. Adhesively Attached, Angle-Shaped, Spindle-Type Anchors: Angle welded to projecting spindle; capable of holding insulation of specified thickness securely in position indicated with selflocking washer in place. C. Anchor Adhesive: Product with demonstrated capability to bond insulation anchors securely to substrates indicated without damaging insulation, fasteners, and substrates. PART 3 - EXECUTION 3.1 PREPARATION A. Clean substrates of substances that are harmful to insulation or that interfere with insulation attachment. 3.2 INSTALLATION, GENERAL A. Comply with insulation manufacturer's written instructions applicable to products and applications indicated. THERMAL INSULATION

5 B. Install insulation that is undamaged, dry, and unsoiled and that has not been left exposed to ice, rain, or snow at any time. C. Extend insulation to envelop entire area to be insulated. Cut and fit tightly around obstructions and fill voids with insulation. Remove projections that interfere with placement. D. Provide sizes to fit applications indicated and selected from manufacturer's standard thicknesses, widths, and lengths. Apply single layer of insulation units to produce thickness indicated unless multiple layers are otherwise shown or required to make up total thickness. 3.3 INSTALLATION OF BELOW-GRADE INSULATION A. On vertical surfaces, set insulation units using manufacturer's recommended adhesive according to manufacturer's written instructions. 1. If not otherwise indicated, extend insulation a minimum of 24 inches below exterior grade line. 3.4 INSTALLATION OF INSULATION FOR FRAMED CONSTRUCTION A. Apply insulation units to substrates by method indicated, complying with manufacturer's written instructions. If no specific method is indicated, bond units to substrate with adhesive or use mechanical anchorage to provide permanent placement and support of units. B. Glass-Fiber or Mineral-Wool Blanket Insulation: Install in cavities formed by framing members according to the following requirements: 1. Use insulation widths and lengths that fill the cavities formed by framing members. If more than one length is required to fill the cavities, provide lengths that will produce a snug fit between ends. 2. Place insulation in cavities formed by framing members to produce a friction fit between edges of insulation and adjoining framing members. 3. Maintain 3-inch clearance of insulation around recessed lighting fixtures not rated for or protected from contact with insulation. 4. For metal-framed wall cavities where cavity heights exceed 96 inches, support unfaced blankets mechanically and support faced blankets by taping/strapping flanges of insulation to flanges of metal studs. C. Spray-Applied Insulation: Apply spray-applied insulation according to manufacturer's written instructions. Do not apply insulation until installation of pipes, ducts, conduits, wiring, and electrical outlets in walls is completed and windows, electrical boxes, and other items not indicated to receive insulation are masked. After insulation is applied, make flush with face of studs by using method recommended by insulation manufacturer. D. Miscellaneous Voids: Install insulation in miscellaneous voids and cavity spaces where required to prevent gaps in insulation using the following materials: 1. Loose-Fill Insulation: Compact to approximately 40 percent of normal maximum volume equaling a density of approximately 2.5 lb/cu. ft INSTALLATION OF INSULATION FOR CONCRETE SUBSTRATES A. Install board insulation on concrete substrates by adhesively attached, spindle-type insulation anchors as follows: THERMAL INSULATION

6 1. Fasten insulation anchors to concrete substrates with insulation anchor adhesive according to anchor manufacturer's written instructions. Space anchors according to insulation manufacturer's written instructions for insulation type, thickness, and application indicated. 2. Apply insulation standoffs to each spindle to create cavity width indicated between concrete substrate and insulation. 3. After adhesive has dried, install board insulation by pressing insulation into position over spindles and securing it tightly in place with insulation-retaining washers, taking care not to compress insulation below indicated thickness. 4. Where insulation will not be covered by other building materials, apply capped washers to tips of spindles. 3.6 INSTALLATION OF STOREFRONT-WALL INSULATION A. Install board insulation in curtain-wall construction where indicated on Drawings according to curtain-wall manufacturer's written instructions. 1. Hold insulation in place by securing metal clips and straps or integral pockets within window frames, spaced at intervals recommended in writing by insulation manufacturer to hold insulation securely in place without touching spandrel glass. Maintain cavity width of dimension indicated between insulation and glass. 2. Install insulation where it contacts perimeter fire-containment system to prevent insulation from bowing under pressure from perimeter fire-containment system. 3.7 INSTALLATION OF VAPOR RETARDERS A. General: Extend vapor retarder to extremities of areas to be protected from vapor transmission. Secure in place with adhesives or other anchorage system as indicated. Extend vapor retarder to cover miscellaneous voids in insulated substrates, including those filled with loose-fiber insulation. ALL SEAMS AND PENETRATIONS SHALL BE SEALED. B. Seal vertical joints in vapor retarders over framing by lapping not less than two wall studs. Fasten vapor retarders to wood framing at top, end, and bottom edges; at perimeter of wall openings; and at lap joints. Space fasteners 16 inches o.c. C. Before installing vapor retarder, apply urethane sealant to flanges of metal framing including runner tracks, metal studs, and framing around door and window openings. Seal overlapping joints in vapor retarders with vapor-retarder tape according to vapor-retarder manufacturer's written instructions. Seal butt joints with vapor-retarder tape. Locate all joints over framing members or other solid substrates. D. Firmly attach vapor retarders to metal framing and solid substrates with vapor-retarder fasteners as recommended by vapor-retarder manufacturer. E. Seal joints caused by pipes, conduits, electrical boxes, and similar items penetrating vapor retarders with vapor-retarder tape to create an airtight seal between penetrating objects and vapor retarder. F. Repair tears or punctures in vapor retarders immediately before concealment by other work. Cover with vapor-retarder tape or another layer of vapor retarder. THERMAL INSULATION

7 3.8 PROTECTION A. Protect installed insulation from damage due to harmful weather exposures, physical abuse, and other causes. Provide temporary coverings or enclosures where insulation is subject to abuse and cannot be concealed and protected by permanent construction immediately after installation. END OF SECTION THERMAL INSULATION

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9 SECTION FOAMED-IN-PLACE INSULATION 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: 1. Closed-cell spray polyurethane foam. 2. Open-cell spray polyurethane foam. 3. Fireproofing/Vapor Spray applied coatings. B. Related Requirements: 1. Section "Thermal Insulation" for foam-plastic board insulation. REFERENCE STANDARDS A. ASTM C Standard Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the Guarded-Hot-Plate Apparatus; B. ASTM C Standard Specification for Spray-Applied Rigid Cellular Polyurethane Thermal Insulation; C. ASTM D Standard Test Method for Compressive Properties of Rigid Cellular Plastics; 2004a. D. ASTM D Standard Test Method for Apparent Density of Rigid Cellular Plastics; E. ASTM D Standard Test Method for Water Absorption of Rigid Cellular Plastics; F. ASTM E 84 - Standard Test Method for Surface Burning Characteristics of Building Materials; G. ASTM E 96/E 96M - Standard Test Methods for Water Vapor Transmission of Materials; ACTION SUBMITTALS SCHEDULE 1 - SUBMITTALS A. A. Qualification Data: For Installer. B. Product Test Reports: For each product, for tests performed by a qualified testing agency. Evaluation Reports: For spray-applied polyurethane foam-plastic insulation C. Product Data: Provide product description, insulation properties, overcoat properties, and prep- FOAMED-IN-PLACE INSULATION

10 aration requirements. D. Manufacturer's Installation Instructions: Indicate special procedures, and perimeter conditions requiring special attention E. Certificates: Certify that products of this section meet or exceed specified requirements. 1.1 QUALITY ASSURANCE A. Installer Qualifications: An authorized representative who is trained and approved by manufacturer with minimum of five (5) years experience in application/installing products. PART 2 - PRODUCTS 2.1 MANUFACTURERS 1. BASF Polyurethane Foam Enterprises LLC 2. North Carolina Foam Industries 3. Polyfoam Products 4. Substitutions: See Section for procedures for product substitution. 2.2 CLOSED-CELL SPRAY POLYURETHANE FOAM A. Closed-Cell Spray Polyurethane Foam: ASTM C 1029, Type II, minimum density of 1.5 lb/cu. ft. and minimum aged R-value at 1-inch (25.4-mm) thickness of 6.2 deg F x h x sq. ft./btu at 75 deg F shall achieve R-30 total value at roof assembly. 1. Surface-Burning Characteristics: Comply with ASTM E 84; testing by a qualified testing agency. Identify products with appropriate markings of applicable testing agency. a. Flame-Spread Index: [25] or less. b. Smoke-Developed Index: [450] or less. 2. Fire Propagation Characteristics: Passes NFPA 285 testing as part of an approved assembly. 3. Shall provide Intumescent/Fireproof/Vapor Spray applied coating. a. Color as selected by Architect from manufacturers full-range. 2.3 OPEN-CELL SPRAY POLYURETHANE FOAM A. Open-Cell Spray Polyurethane Foam: Spray-applied polyurethane foam using water as a blowing agent. Minimum density of [0.4 lb/cu. ft. and minimum aged R-value at 1-inch (25.4-mm) thickness of 3.4 deg F x h x sq. ft./btu at 75 deg F shall achieve total R-30 value 1. Surface-Burning Characteristics: Comply with ASTM E 84; testing by a qualified testing agency. Identify products with appropriate markings of applicable testing agency. a. Flame-Spread Index: [25] or less. b. Smoke-Developed Index: [450] <Insert value> or less. FOAMED-IN-PLACE INSULATION

11 2. Fire Propagation Characteristics: Passes NFPA 285 testing as part of an approved assembly. 3. Shall provide Intumescent/Fireproof/Vapor Spray applied coating. a. Color as selected by Architect from manufacturer s full-range. 2.4 MISCELLANEOUS MATERIALS A. Primer: Material recommended by insulation manufacturer where required for adhesion of insulation to substrates. B. Paint/Vapor Coating: Material as recommend by manufacturer for intumescent paint/coating over foamed-in-place insulation to achieve vapor and fire resistance as required by governing code requirements. PART 3 - EXECUTION 3.1 PREPARATION A. Verify that substrates are clean, dry, and free of substances that are harmful to insulation. B. Priming: Prime substrates where recommended by insulation manufacturer. Apply primer to comply with insulation manufacturer's written instructions. Confine primers to areas to be insulated; do not allow spillage or migration onto adjoining surfaces. C. Mask and protect adjacent surfaces from over spray or dusting, typical. 3.2 INSTALLATION A. Comply with insulation manufacturer's written instructions applicable to products and applications. B. Spray insulation to envelop entire area to be insulated and fill voids. C. Apply in multiple passes to not exceed maximum thicknesses recommended by manufacturer. Do not spray into rising foam. D. Framed Construction: Install into cavities formed by framing members to achieve thickness indicated to achieve R-30 values. E. Cavity Walls: Install into cavities. F. Miscellaneous Voids: Apply according to manufacturer's written instructions. G. Spray at all underside of roof deck conditions, end truss wall framing and eve framing conditions. H. Closed cell insulation shall be at Apparatus Bay and Open Cell at remaining areas, living side. Confirm all locations identified in shop-drawings and as approved by Architect. I. Installations shall not hinder, disrupt, cause damage to or impair the installations required by all other trades and or framing requiring attachment at areas being applied. Contractor and GC shall coordinate with all other trades prior to installation work and prep-work. FOAMED-IN-PLACE INSULATION

12 3.3 PROTECTION A. Protect installed insulation from damage due to harmful weather exposures, physical abuse, and other causes. END OF SECTION FOAMED-IN-PLACE INSULATION

13 SECTION WEATHER BARRIERS PART 1 - GENERAL 1.2 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.3 SUMMARY A. Section Includes: 1. Building paper. 2. Building wrap. 3. Flexible flashing. 4. Drainage material. 1.4 ACTION SUBMITTALS A. Product Data: For each type of product. 1. For building wrap, include data on air and water-vapor permeance based on testing according to referenced standards. B. Shop Drawings: Show details of building at terminations, openings, and penetrations. Show details of flexible flashing applications. 1.5 INFORMATIONAL SUBMITTALS A. Evaluation Reports: For water-resistive barrier and flexible flashing, from ICC-ES. PART 2 - PRODUCTS 2.1 WATER-RESISTIVE BARRIER A. Building Paper: ASTM D 226, Type 1 (No. 15 asphalt-saturated organic felt), unperforated. 1. Products: Subject to compliance with requirements, available products that may be incorporated into the Work include, but are not limited to, the following: a. DuPont (E. I. du Pont de Nemours and Company); Tyvek Commercial Wrap. 2. Air Penetration: cfm/ft2 at 75 Pa, when tested in accordance with ASTM E Water Vapor Transmission: 28 perms, when tested in accordance with ASTM E96, Method B. WEATHER BARRIERS

14 4. Water Penetration Resistance: Minimum 280 cm when tested in accordance with AATCC Test Method Tensile Strength: minimum 38/35 lbs/in., when test3ed in accordance with ASTM D882, Method A. 6. Allowable UV Exposure Time: Not less than three months. B. Building-Wrap Tape: Pressure-sensitive plastic tape recommended by building-wrap manufacturer for sealing joints and penetrations in building wrap. MISCELLANEOUS MATERIALS C. Nails and Staples: ASTM F Nail Caps: #4 nails with large 1-inch plastic cap fasteners. 2. Flame Propagation Test: Materials and construction shall be as tested according to NFPA 285. D. Building-Wrap Tape: Wet/liquid applied tape recommended by building-wrap manufacturer for sealing joints, fastener locations, and penetrations in building wrap. 2.2 FLEXIBLE FLASHING A. Butyl Rubber Flashing: Composite, self-adhesive, flashing product consisting of a pliable, butyl rubber compound, bonded to a high-density polyethylene film, aluminum foil, or spunbonded polyolefin to produce an overall thickness of not less than [0.040 inch (1.0 mm)]. 1. flame Propagation Test: Materials and construction shall be as tested according to NFPA 285. B. Primer for Flexible Flashing: Product recommended in writing by flexible flashing manufacturer for substrate. C. Fasteners: Product recommended in writing by flexible flashing manufacturer and complying with ASTM F DRAINAGE MATERIAL A. Drainage Material: Product shall maintain a continuous open space between water-resistive barrier and exterior cladding/veneer to create a drainage plane and shall be used under metal panel walls or masonry veneer. 1. Flame Propagation Test: Materials and construction shall be as tested according to NFPA 285. SCHEDULE 1 - SEALANTS A. Primers, Cleaners, and Other Sealant Materials: As recommended by sealant manufacturer, appropriate to application, and compatible with adjacent materials. SCHEDULE 2 - ADHESIVES A. Mastic Adhesive: Compatible with sheet seal and substrate, thick mastic of uniform knife grade consistency. SCHEDULE 3 - ACCESSORIES WEATHER BARRIERS

15 A. Thinners and Cleaners: As recommended by material manufacturer. PART 3 - EXECUTION 3.1 WATER-RESISTIVE BARRIER INSTALLATION A. Cover exposed exterior surface of sheathing with water-resistive barrier securely fastened to framing immediately after sheathing is installed. B. Cover sheathing with water-resistive barrier as follows: 1. Cut back barrier 1/2 inch (13 mm) on each side of the break in supporting members at expansion- or control-joint locations. 2. Apply barrier to cover vertical flashing with a minimum 4-inch (100-mm) overlap unless otherwise indicated. C. Building Wrap: Comply with manufacturer's written instructions and warranty requirements. 1. Seal seams, edges, fasteners, and penetrations with tape. 2. Extend into jambs of openings and seal corners with tape. D. Apply horizontally with a 2-inch (50-mm) overlap and a 6-inch (150-mm) end lap; fasten to sheathing with galvanized staples or roofing nails. 3.2 FLEXIBLE FLASHING INSTALLATION A. Apply flexible flashing where indicated to comply with manufacturer's written instructions. 1. Prime substrates as recommended by flashing manufacturer. 2. Lap seams and junctures with other materials at least 4 inches (100 mm) except that at flashing flanges of other construction, laps need not exceed flange width. 3. Lap flashing over water-resistive barrier at bottom and sides of openings. 4. Lap water-resistive barrier over flashing at heads of openings. 5. After flashing has been applied, roll surfaces with a hard rubber or metal roller to ensure that flashing is completely adhered to substrates. 3.3 DRAINAGE MATERIAL INSTALLATION A. Install drainage material over building wrap and flashing to comply with manufacturer's written instructions. END OF SECTION WEATHER BARRIERS

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17 SECTION VAPOR RETARDERS PART 1 - GENERAL 1.2 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.3 SUMMARY A. Section Includes: 1. Polyethylene vapor retarders. 2. Reinforced-polyethylene vapor retarders. 3. Fire-retardant, reinforced-polyethylene vapor retarders. B. Related Requirements: 1. Section "Cast-in-Place Concrete" for under-slab vapor retarders. 2. Section "Thermal Insulation" for vapor retarders integral with insulation products. 1.4 ACTION SUBMITTALS A. Product Data: For each type of product. 1.5 INFORMATIONAL SUBMITTALS A. Product Test Reports: For each product, for tests performed by a qualified testing agency. PART 2 - PRODUCTS 2.1 POLYETHYLENE VAPOR RETARDERS A. Polyethylene Vapor Retarders: ASTM D 4397, 15mil thick sheet, with maximum permeance rating of 0.1 perm (5.7 ng/pa x s x sq. m). 2.2 REINFORCED-POLYETHYLENE VAPOR RETARDERS A. Reinforced-Polyethylene Vapor Retarders: Sheet with outer layers of polyethylene film laminated to an inner reinforcing layer consisting of either nylon cord or polyester scrim and weighing not less than [20 lb/1000 sq. ft. (9 kg/100 sq. m)] with maximum permeance rating of 0.1 perm (5.7 ng/pa x s x sq. m). VAPOR RETARDERS

18 2.3 ACCESSORIES A. Vapor-Retarder Tape: Pressure-sensitive tape of type recommended by vapor-retarder manufacturer for sealing joints and penetrations in vapor retarder. B. Adhesive for Vapor Retarders: Product recommended by vapor-retarder manufacturer and has demonstrated capability to bond vapor retarders securely to substrates indicated. C. Vapor-Retarder Fasteners: Pancake-head, self-tapping steel drill screws; with fender washers. PART 3 - EXECUTION 3.1 PREPARATION A. Clean substrates of substances that are harmful to vapor retarders, including removing projections capable of puncturing vapor retarders. 3.2 INSTALLATION OF VAPOR RETARDERS ON FRAMING A. Place vapor retarders on side of construction indicated on Drawings. B. Extend vapor retarders to extremities of areas to protect from vapor transmission. Secure vapor retarders in place with adhesives, vapor retarder fasteners, or other anchorage system as recommended by manufacturer. Extend vapor retarders to cover miscellaneous voids in insulated substrates, including those filled with loose-fiber insulation. C. Seal vertical joints in vapor retarders over framing by lapping no fewer than two studs and sealing with vapor-retarder tape according to vapor-retarder manufacturer's written instructions. Locate all joints over framing members or other solid substrates. D. Seal joints caused by pipes, conduits, electrical boxes, and similar items penetrating vapor retarders with vapor-retarder tape to create an airtight seal between penetrating objects and vapor retarders. E. Repair tears or punctures in vapor retarders immediately before concealment by other work. Cover with vapor-retarder tape or another layer of vapor retarders. 3.3 INSTALLATION OF VAPOR RETARDERS IN CRAWL SPACES A. Install vapor retarders over prepared grade. Lap joints a minimum of 12 inches (305 mm) and seal with manufacturer's recommended tape. Install second layer over pathways to equipment. B. Extend vapor retarder over footings and seal to foundation wall or grade beam with manufacturer's recommended tape. 1. Extend vapor retarder vertically minimum [24 inches (610 mm)] from top of footing. C. Seal around penetrations such as utilities and columns in order to create a monolithic, airtight membrane at grade surface, perimeter, and all vertical penetrations. VAPOR RETARDERS

19 3.4 PROTECTION A. Protect vapor retarders from damage until concealed by permanent construction. END OF SECTION VAPOR RETARDERS

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21 SECTION FLUID-APPLIED MEMBRANE AIR BARRIERS 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: Materials and installation methods for fluid applied air and vapor barrier membrane system located in the non accessible part of the wall. 1. Vapor-retarding, fluid-applied air barriers. 2. Vapor-permeable, fluid-applied air barriers. B. Related Requirements: 3. Division 03 Cast-In-Place Concrete 4. Division 04 Unit Masonry 5. Section "Sheathing" for wall sheathings and wall sheathing joint-and-penetration treatments. 6. Section "Weather Barriers" 1.3 PERFORMANCE REQUIREMENTS A. Provide an air and vapor barrier system to perform as a continuous barrier to air infiltration/ infiltration and water vapor transmission and to act as a liquid water drainage plane flashed to discharge any incidental condensation or water penetration. 1.4 PREINSTALLATION MEETINGS A. Preinstallation Conference: Conduct conference at project site location. 7. Review air-barrier requirements and installation, special details, mockups, air-leakage and bond testing, air-barrier protection, and work scheduling that covers air barriers. 1.5 ACTION SUBMITTALS A. Product Data: For each type of product. 8. Include manufacturer's written instructions for evaluating, preparing, and treating each substrate; technical data; dry film thickness; and tested physical and performance properties of products. B. Shop Drawings: For air-barrier assemblies. 9. Show locations and extent of air-barrier materials, accessories, and assemblies specific to Project conditions. FLUID-APPLIED MEMBRANE AIR BARRIERS

22 10. Include details for substrate joints and cracks, counterflashing strips, penetrations, inside and outside corners, terminations, and tie-ins with adjoining construction. 11. Include details of interfaces with other materials that form part of air barrier. 1.6 INFORMATIONAL SUBMITTALS A. Qualification Data: For Installer B. Product Certificates: From air-barrier manufacturer, certifying compatibility of air barriers and accessory materials with Project materials that connect to or that come in contact with the barrier. C. Samples: For the following products in manufacturer's standard sizes unless otherwise indicated: 1. Fluid applied air barrier membrane 2. Transition membrane 3. Through wall flashing. D. Qualification Data: For qualified Installer. E. Product Test Reports: Based on evaluation of comprehensive tests performed by a qualified testing agency. F. Warranties: Sample of special warranties. 1.7 QUALITY ASSURANCE A. Installer Qualifications: A firm that is acceptable to manufacturer for installation of waterproofing and air barrier products required for this Project and is eligible to receive special warranties specified. B. Source Limitations: Obtain waterproofing and air barrier materials from single source from single manufacturer. C. Inspection and Testing: Cooperate and coordinate with the Owners inspection and testing agency. DO not cover any installed air and vapor barrier membrane until it has been inspected, tested and approved. D. Mockups: Build mockups to set quality standards for materials and execution. 12. Build integrated mockups of exterior wall assembly incorporating backup wall construction, external cladding, window, storefront, door frame and sill, insulation, ties and other penetrations, and flashing to demonstrate surface preparation, crack and joint treatment, application of air barriers, and sealing of gaps, terminations, and penetrations of air-barrier assembly. a. Coordinate construction of mockups to permit inspection and testing of air barrier before external insulation and cladding are installed. b. Include junction with roofing membrane. c. If Architect determines mockups do not comply with requirements, reconstruct mockups and apply air barrier until mockups are approved. FLUID-APPLIED MEMBRANE AIR BARRIERS

23 13. Approval of mockups does not constitute approval of deviations from the Contract Documents contained in mockups unless Architect specifically approves such deviations in writing. 14. Subject to compliance with requirements, approved mockups may become part of the completed Work if undisturbed at time of Substantial Completion. 1.8 PRECONSTRUCTION TESTING A. Preconstruction Testing Service: a qualified testing agency to perform preconstruction testing on field mockups. B. Mockup Testing: Air-barrier assemblies shall comply with performance requirements indicated, as evidenced by reports based on mockup testing by a qualified testing agency. 15. Air-Leakage-Location Testing: Mockups will be tested for evidence of air leakage according to [ASTM E 1186, chamber pressurization or depressurization with smoke tracers] [ASTM E 1186, chamber depressurization with detection liquids] <Insert requirement>. 16. Air-Leakage-Volume Testing: Mockups will be tested for air-leakage rate according to [ASTM E 783] [or] [ASTM E 2357]. 17. Adhesion Testing: Mockups will be tested for required air-barrier adhesion to substrate according to ASTM D Notify Architect seven (7) days in advance of the dates and times when mockups will be tested. 1.9 DELIVERY, STORAGE, AND HANDLING A. Store liquid materials in their original undamaged containers in a clean, dry, protected location and within the temperature range required by waterproofing manufacturer. B. Remove and replace liquid materials that cannot be applied within their stated shelf life. C. Protect stored materials from direct sunlight and temperature exposure above or below manufacture s written product requirements FIELD CONDITIONS A. Environmental Limitations: Apply air barrier within the range of ambient and substrate temperatures recommended in writing by air-barrier manufacturer. 1. Protect substrates from environmental conditions that affect air-barrier performance. 2. Do not apply air barrier to a damp or wet substrate or during snow, rain, fog, or mist WARRANTY A. Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair or replace waterproofing and sheet flashings that do not comply with requirements or that fail to remain watertight within specified warranty period. 1. Warranty insulation will retain 80 percent of original published thermal value. 2. Warranty pavers will not dish or warp and will not crack, split, or disintegrate in freezethaw conditions. FLUID-APPLIED MEMBRANE AIR BARRIERS

24 3. Warranty includes removing and reinstalling protection board, drainage panels, insulation, pedestals, and pedestal-mounted pavers on plaza decks. 4. Verify available warranties and warranty periods with manufacturers listed in Part 2 articles. 5. Warranty Period: Ten (10) years from date of Substantial Completion. PART 2 - PRODUCTS 2.1 MATERIALS A. Source Limitations: Obtain primary air-barrier materials and air-barrier accessories from single source from single manufacturer. 2.2 FLUID APPLIED MEMBRANES A. Description: a two part, self-curing, synthetic rubber based material free of solvents, isocyanates and bitumen B. Performance Requirements: Property Test Method Typical Value Color Green Cured Film Thickness ASTM D 3767 Method A 1.5 mm (0.060 in.) nominal Solids Content ASTM D % Air Permeance at 75 Pa (0.3 in. water) Differential Pressure ASTM E 2178 Assembly Air Permeance at 75Pa (0.3 in. water) Differential ASTM E 2357 Pressure Water Vapor Permeance Pull Adhesion to Concrete Block (CMU) Pull Adhesion to Glass Faced Wall Board ASTM E 96, Method BW ASTM D ASTM D <0.001 L/(s.m 2 ) (< cfm/ft 2 ) <0.004 L/s*m 2 (< cfm/ft 2 ) Less than 4.6 ng/pa.s.m 2 (0.08 Perms) 0.24 N/mm 2 (35 psi) 0.12 N/mm 2 (18 psi) Peel Adhesion to Concrete ASTM D 903 Modified N/m (5 lb./in.) Elongation ASTM D % minimum Pliability, 180 Bend over 25 mm (1 in.) Mandrel at -30 C (- ASTM D 1970 Unaffected 23 F) Low Temperature Flexibility and Crack Bridging 3.2mm (1/8in.) crack cycling at ASTM C836 Pass - 26 C (-15 F) Extensibility over 6.4mm (1/4in.) crack after heat aging ASTM C836 Pass Footnote: The membrane is applied to concrete and allowed to cure. Peel adhesion of the membrane is measured at a rate of 50 mm (2 in) per minute with a peel angle of 90 at room temperature. FLUID-APPLIED MEMBRANE AIR BARRIERS

25 (Note: Substituted manufacturer/product must meet all qualities, operations and criteria as set forth in the specifications). C. Acceptable Materials: 1. Basis of Design: Perm-A-Barrier Liquid (air and vapor barrier) from Grace Construction Products D. Acceptable Manufacturer: a. TREMCO ExoAir 120 b. STO StoGuard Vapor Seal (Fluid Applied Air and Vapor Barrier). 2.3 TRANSITION MEMBRANE A. Description: 0.9 mm of self-adhesive rubberized asphalt integrally bonded to 0.1 mm of crosslaminated, high-density polyethylene film to provide a min. 0.1 mm thick membrane. Membrane shall be interleaved with disposable silicone-coated release paper until installed. B. Performance Requirements: 1. Water Vapor Transmission: ASTM E 96, Method B: 2.9 ng/m2spa (0.05 perms) max. 2. Air Permeance at 75Pa (0.3 in. water) pressure difference: L/(s.m 2 ) ( cfm/ft 2 ) max. 3. Puncture Resistance: ASTM E 154: 178 N (40 lbs) min. 4. Lap Adhesion at -4 C (25 F), ASTM D 1876: 880 N/m (5.0 lbs./in.) of width min. 5. Low Temperature Flexibility, ASTM D 1970: Unaffected to -43 C (-45 F). 6. Tensile Strength, ASTM D 412, Die C Modified: min. 2.7 MPa (400 psi) 7. Elongation, Ultimate Failure of Rubberized Asphalt, ASTM D 412 Die C: min. 200% C. Acceptable Materials: 1. Basis of Design: Perm-A-Barrier Detail Membrane manufactured by Grace Construction Products. 2.4 FLEXIBLE MEMBRANE WALL FLASHING A. Description: 0.8 mm of self-adhesive rubberized asphalt integrally bonded to 0.2 mm of crosslaminated, high density polyethylene film to provide a min. 1.0 mm thick membrane. Membrane shall be interleaved with disposable silicone-coated release paper until installed. B. Performance requirements: 1. Water Vapor Transmission, ASTM E 96, Method B: 2.9 ng/m2spa (0.05 perms) max. 2. Water Absorption, ASTM D 570: max. 0.1% by weight 3. Puncture Resistance, ASTM E 154: 356 N (80 lbs.) min. 4. Tear Resistance a. Initiation ASTM D 1004: min. 58 N (13.0 lbs.) M.D. b. Propagation ASTM D 1938: min. 40N (9.0 lbs.) M.D. 5. Lap Adhesion at -4 C (25 F), ASTM D 1876: 880 N/m (5.0 lbs./in.) of width 6. Low Temperature Flexibility, ASTM D 1970: Unaffected to -43 C (-45 F) 7. Tensile Strength, ASTM D 412, Die C Modified: min. 5.5 MPa (800 psi) 8. Elongation, Ultimate Failure of Rubberized Asphalt, ASTM D 412, Die C: min. 200% FLUID-APPLIED MEMBRANE AIR BARRIERS

26 C. Acceptable Materials: 1. Basis-of-Design: Perm-A-Barrier Wall Flashing manufactured by Grace Construction Products. 2.5 AIR & VAPOR BARRIER ACCESSORIES A. Description: Water-based primer which imparts an aggressive, high tack finish on the treated substrate. 1. Flash Point: No flash to boiling point 2. Solvent Type: Water 3. VOC Content: Not to exceed 10 g/l 4. Application Temperature: -4 C (25 F) and above 5. Freezing Point (as packaged): -7 C (21 F) 6. Product Basis-of-Design: Perm-A-Barrier WB Primer manufactured by Grace Construction Products. B. Description: Two part, elastomeric, trowel grade material designed for use with self-adhered membranes and tapes. 10 g/l max. VOC Content. 1. Product Basis-of-Design: Bituthene Liquid Membrane manufactured by Grace Construction Products. 2.6 ACCESSORY MATERIALS A. Requirement: Provide primers, transition strips, termination strips, joint reinforcing fabric and strips, joint sealants, counterflashing strips, flashing sheets and metal termination bars, termination mastic, substrate patching materials, adhesives, tapes, foam sealants, lap sealants, and other accessory materials that are recommended in writing by air-barrier manufacturer to produce a complete air-barrier assembly and that are compatible with primary air-barrier material and adjacent construction to which they may seal. B. Primer: Liquid primer recommended for substrate by air-barrier material manufacturer. C. Optional Primers: 1. Description: High tack water based primer. 10 g/l max. VOC content. a. Product Basis-of-Design: Perm-A-Barrier Liquid Part B manufactured by Grace Construction Products. 2. Description: High tack low VOC solvent based primer. <200 g/l max. VOC content. a. Product Basis-of-Design: Bituthene Primer B2 LVC manufactured by Grace Construction Products. 3. Description: High tack solvent based primer. 440 g/l max. VOC content b. Product Basis-of Design: Bituthene Primer manufactured by Grace Construction Products. D. Stainless-Steel Sheet: ASTM A 240/A 240M, Type 304, [ inch (0.64 mm)] thick, and Series 300 stainless-steel fasteners. FLUID-APPLIED MEMBRANE AIR BARRIERS

27 E. Preformed Silicone Extrusion: Manufacturer's standard system consisting of cured low-modulus silicone extrusion, sized to fit opening widths, with a single-component, neutral-curing, Class 100/50 (low-modulus) silicone sealant for bonding extrusions to substrates. PART 3 - EXECUTION 3.1 EXAMINATION A. Examine substrates, areas, and conditions, with Installer present, for compliance with requirements and other conditions affecting performance of the Work. 3. Verify that substrates are sound and free of oil, grease, dirt, excess mortar, or other contaminants. 4. Verify that substrates have cured and aged for minimum time recommended in writing by air-barrier manufacturer. 5. Verify that substrates are visibly dry and free of moisture.[ Test concrete substrates for capillary moisture by plastic sheet method according to ASTM D 4263.] 6. Verify that masonry joints are flush and completely filled with mortar. B. Proceed with installation only after unsatisfactory conditions have been corrected. 3.2 SURFACE PREPARATION A. Refer to manufacturer s literature for requirements for preparation of substrates. Surfaces shall be sound and free of voids, spalled areas, loose aggregate and sharp protrusions. Remove contaminants such as grease, oil, and wax from exposed surfaces. Remove dust, dirt, loose stone, and debris. Use repair materials and methods that are acceptable to manufacturer of the fluid applied waterproofing. B. Mask off adjoining surfaces not covered by air barrier to prevent spillage and overspray affecting other construction. C. Remove grease, oil, bitumen, form-release agents, paints, curing compounds, and other penetrating contaminants or film-forming coatings from concrete. D. Remove fins, ridges, mortar, and other projections and fill honeycomb, aggregate pockets, holes, and other voids in concrete with substrate-patching material. E. Remove excess mortar from masonry ties, shelf angles, and other obstructions. F. At changes in substrate plane, apply sealant or termination mastic beads at sharp corners and edges to form a smooth transition from one plane to another. G. Cover gaps in substrate plane and form a smooth transition from one substrate plane to another with stainless-steel sheet mechanically fastened to structural framing to provide continuous support for air barrier. H. Bridge [isolation joints] [expansion joints] [and] discontinuous wall-to-wall, deck-to-wall, and deck-to-deck joints with air-barrier accessory material that accommodates joint movement according to manufacturer's written instructions and details. FLUID-APPLIED MEMBRANE AIR BARRIERS

28 3.3 ACCESSORIES INSTALLATION A. Install accessory materials according to air-barrier manufacturer's written instructions and details to form a seal with adjacent construction and ensure continuity of air and water barrier. 7. Coordinate the installation of air barrier with installation of roofing membrane and base flashing to ensure continuity of air barrier with roofing membrane. 8. Install transition strip on roofing membrane or base flashing so that a minimum of 4 inches of coverage is achieved over each substrate. 9. Unless manufacturer recommends in writing against priming, apply primer to substrates at required rate and allow it to dry. 10. Apply primer to substrates at required rate and allow it to dry. Limit priming to areas that will be covered by air-barrier material on same day. Reprime areas exposed for more than 24 hours. B. Connect and seal exterior wall air-barrier material continuously to roofing-membrane air barrier, concrete below-grade structures, floor-to-floor construction, exterior glazing and window systems, glazed curtain-wall systems, storefront systems, exterior louvers, exterior door framing, and other construction used in exterior wall openings, using accessory materials. C. At end of each working day, seal top edge of strips and transition strips to substrate with termination mastic. D. Apply joint sealants forming part of air-barrier assembly within manufacturer's recommended application temperature ranges. Consult manufacturer when sealant cannot be applied within these temperature ranges. E. Wall Openings: Prime concealed, perimeter frame surfaces of windows, curtain walls, storefronts, and doors. Apply [transition strip] [preformed silicone extrusion] so that a minimum of 3 inches (75 mm) of coverage is achieved over each substrate. Maintain 3 inches (75 mm) of full contact over firm bearing to perimeter frames, with not less than 1 inch (25 mm) of full contact. 11. Transition Strip: Roll firmly to enhance adhesion. 12. Preformed Silicone Extrusion: Set in full bed of silicone sealant applied to walls, frame, and air-barrier material. F. Fill gaps in perimeter frame surfaces of windows, curtain walls, storefronts, and doors, and miscellaneous penetrations of air-barrier material with foam sealant. G. Seal strips and transition strips around masonry reinforcing or ties and penetrations with termination mastic. H. Seal top of through-wall flashings to air barrier with an additional 6-inch- (150-mm-) wide, transition strip. I. Seal exposed edges of strips at seams, cuts, penetrations, and terminations not concealed by metal counterflashings or ending in reglets with termination mastic. J. Repair punctures, voids, and deficient lapped seams in strips and transition strips. Slit and flatten fishmouths and blisters. Patch with transition strips extending 6 inches (150 mm) beyond repaired areas in strip direction. FLUID-APPLIED MEMBRANE AIR BARRIERS

29 3.4 PRIMARY AIR-BARRIER MATERIAL INSTALLATION A. Apply air-barrier material to form a seal with strips and transition strips and to achieve a continuous air barrier according to air-barrier manufacturer's written instructions and details. Apply air-barrier material within manufacturer's recommended application temperature ranges. 13. Unless manufacturer recommends in writing against priming, apply primer to substrates at required rate and allow it to dry. 14. Limit priming to areas that will be covered by air-barrier material on same day. Reprime areas exposed for more than 24 hours. 15. Where multiple prime coats are needed to achieve required bond, allow adequate drying time between coats. 3.5 CLEANING AND PROTECTION A. Protect air-barrier system from damage during application and remainder of construction period, according to manufacturer's written instructions. 16. Protect air barrier from exposure to UV light and harmful weather exposure as recommended in writing by manufacturer. If exposed to these conditions for longer than recommended, remove and replace air barrier or install additional, full-thickness, airbarrier application after repairing and preparing the overexposed materials according to air-barrier manufacturer's written instructions. 17. Protect air barrier from contact with incompatible materials and sealants not approved by air-barrier manufacturer. B. Clean spills, stains, and soiling from construction that would be exposed in the completed work using cleaning agents and procedures recommended in writing by manufacturer of affected construction. C. Remove masking materials after installation. END OF SECTION FLUID-APPLIED MEMBRANE AIR BARRIERS

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31 SECTION STANDING-SEAM METAL ROOF PANELS 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 standing-seam metal roof panels. B. Related Sections: 1. Section "Rough Carpentry" for wood blocking, nailers, etc. to be coordinated with new metal roof panel system, flashing, insulation, soffits and accessories, not otherwise included within this section. 2. Section "Sheet Metal Flashing & Trim" for metal flashing and trim used in coordination with roof panel system and not otherwise included within this section. 3. Section Formed Metal Wall Panels for wall and soffit panels 4. Section "Snow Guards" for prefabricated devices designed to hold snow on the roof surface, allowing it to melt and drain off slowly. 5. Factory-formed and field-assembled, standing-seam metal roof panels. 6. Roofing underlayment. 1.3 ACTION SUBMITTALS A. Product Data: For each type of product. 1. Include construction details, material descriptions, dimensions of individual components and profiles, and finishes for each type of panel and accessory. B. Shop Drawings: 1. Include fabrication and installation layouts of metal panels; details of edge conditions, joints, panel profiles, corners, anchorages, attachment system, trim, flashings, closures, and accessories; and special details. 2. Accessories: Include details of the flashing, trim, and anchorage systems. C. Samples for Initial Selection: For each type of metal panel indicated with factory-applied color finishes. D. Samples for Verification: For each type of exposed finish required, prepared on Samples of size indicated below. 1. Metal Panels: 12 inches (305 mm) width by actual panel length. E. Warranties: Special warranties specified in this Section. STANDING-SEAM METAL ROOF PANELS