SECTION INTUMESCENT MASTIC FIREPROOFING

Transcription

1 PART 1 GENERAL 1.01 SUMMARY SECTION INTUMESCENT MASTIC FIREPROOFING A. Section Includes: 1. Intumescent Mastic Fireproofing for Application to Exposed Steel 2. Protection of Adjacent Surfaces from Overspraying B. Related Sections: 1.02 REFERENCES 1. Section Structural Steel. 2. Section Applied Fireproofing 3. Section Painting 4. Section High Performance Coatings for painting of non-structural exposed exterior ferrous metals. A. ASTM International Publications: 1. E84 "Standard Test Method for Surface Burning Characteristics of Building Materials" 2. E119 "Standard Test Methods for Fire Tests of Building Construction and Materials" B. Underwriter's Laboratories, Inc. (UL) Standards 1. (UL) Fire Resistance Directory SYSTEM DESCRIPTION A. The intumescent mastic fireproofing materials shall be applied at the required thickness to provide the required resistance ratings. B. Assemblies: Provide fireproofing, including auxiliary materials, according to requirements of each fire-resistance design and manufacturer's written instructions SUBMITTALS A. General: Submit the following in accordance with Conditions of Contract and Division 01 Specification Sections. 1. Submit manufacturer's specifications, including certification as may be required to show material compliance with contract documents. 2. Product Data: For each type of product specified. 3. Provide manufacturer's certification or independent test reports confirming that materials meet or exceed performance criteria specified and reports from reputable independent testing agencies, of product proposed for use, which indicated conformance to ASTM E84 and E119. a. Include certification by manufacturer that products supplied comply with local regulations controlling use of volatile organic compounds (VOC). b. Where and what kinds of surface preparations are required before applying fireproofing. B. Samples for Verification: For each color to be applied, with texture to simulate actual conditions, on representative Samples of actual substrate. PAGE 1 FILE: CFRST-Intumescent Mastic Fireproofing REVISED: 01/22/ , Marriott International, Inc. CFRST SPECMSTR-NEW BUILD

2 1. Submit three samples on the following substrates for Architect's review of color and texture only: a. Painted Metal: 6-inch square Samples of each topcoat finish color. C. Qualification Data: For Applicator. D. Material Test Reports: For each intumescent coating QUALITY ASSURANCE A. Fire-Test-Response Characteristics: Provide Intumescent Mastic Fireproofing products identical to those used in assemblies tested for the following fire-test-response characteristics, per test method indicated below, by UL or another testing and inspecting agency acceptable to authorities having jurisdiction. Identify packages (bags) containing fireproofing with appropriate classification markings of applicable testing and inspecting agency. 1. Fire-Resistance Ratings: As indicated by reference to fire-resistive designs listed in UL "Fire Resistance Directory", or in the comparable publication of another testing and inspecting agency acceptable to authorities having jurisdiction, tested per ASTM E Surface-burning Characteristics: As indicated for each intumescent mastic fireproofing product required, tested per ASTM E84. B. Installer Qualifications: Engage an experienced installer certified, licensed, or otherwise qualified by the Intumescent Mastic Fireproofing manufacturer as having the necessary experience, staff, and training to install manufacturer's products per specified requirements. A manufacturer's willingness to sell its Intumescent Mastic Fireproofing products to the Contractor or to an installer engaged by the Contractor does not in itself confer qualification on the buyer. C. Single-Source Responsibility: Obtain Intumescent Mastic Fireproofing materials from a single manufacturer for each different product required. D. Provide fireproofing products containing no detectable asbestos as determined according to the method specified in 40 CFR Part 763, Subpart F, Appendix A, Section 1, Polarized Light Microscopy. E. Manufacturer - Company specializing in manufacturing products of this section. F. Applicator - A firm with expertise in the installation of fire protection or similar materials. This firm shall be licensed or otherwise approved by the are protection material supplier G. Product - The product shall be approved by the architect and applicable authorities having jurisdiction. H. Applicator Qualifications: A firm or individual experienced in applying Intumescent Mastic Fireproofing similar in material, design, and extent to those indicated for the Project, whose work has resulted in applications with a record of successful in-service performance. I. Source Limitations: Obtain primers and undercoat materials for each Intumescent Mastic Fireproofing system from same manufacturer as finish coats, or of type approved by manufacturer. 1. Notify Architect of problems anticipated using specified coating systems. J. Fire-Test-Response Characteristics: Provide intumescent paints with the following surfaceburning characteristics as determined by testing identical products per ASTM E 84, by UL, or by another testing and inspecting agency acceptable to authorities having jurisdiction: 1. Flame-Spread Index: 25 or less. 2. Smoke-Developed Index: 450 or less. PAGE 2 REVISED: 01/22/16 FILE: CFRST-Intumescent Mastic Fireproofing CFRST SPECMSTR-NEW BUILD 2016, Marriott International, Inc.

3 K. Mockups: Build mockups to verify selections made under Sample submittals and to demonstrate aesthetic effects and to set quality standards for materials and execution]. 1. Build mockup of each type of fireproofing and different substrate as shown on Drawings. 2. Approval of mockups does not constitute approval of deviations from the Contract Documents contained in mockups unless Architect specifically approves such deviations in writing. L. Preinstallation Conference: 1. The contractor shall conduct a preinstallation conference at the Project Site. 2. Review products, design ratings, restrained and unrestrained conditions, thicknesses, and other performance requirements 3. Subject to compliance with requirements, approved mockups may become part of the completed Work if undisturbed at time of Substantial Completion DELIVERY, STORAGE AND HANDLING A. Deliver materials to the project in manufacturer's unopened packages, fully identified as to trade name, type and other identifying data. Packaging shall bear the appropriate labels and seals for one resistance ratings and shall be stored at temperatures above 40 degrees F, in a dry location. B. Keep materials dry, off the ground, under cover, and away from sweating walls and other damp surfaces until ready for use. Bags exposed to water before use shall be discarded. Rotate stock material and use before expiration date PROJECT/SITE CONDITIONS A. When the temperature at the job site is less than 50 F a minimum substrate and ambient temperature of 50' F shall be maintained prior to, during and a minimum of 24 hours after application. If necessary for job schedule, the General Contractor shall provide enclosures and heat to maintain proper temperatures and humidity levels in the application areas. B. In areas lacking natural ventilation, provide forced air circulation. In enclosed areas, ventilation shall not be less than 4 complete air exchanges per hour. C. Relative humidity shall not exceed 75% throughout the total period of application and drying for the intumescent are protection material, and must not exceed 75% throughout the application and drying for the protective decorative finish coat SEQUENCING AND SCHEDULING A. Applicator shall cooperate in the coordination and scheduling of fire protection work item to avoid delays in job progress. B. The installation of piping, ducts, conduit or other suspended equipment shall not commence until the application of the Intumescent Mastic Fireproofing is complete in that area. C. Furnish extra top coating paint materials from same production run as materials applied in quantities described below. Package paint materials in unopened, factory-sealed containers for storage, and identify with labels describing contents. Deliver extra materials to Owner. 1. Quantity: Furnish Owner with extra topcoat paint materials in quantities indicated below: a. Two Component polysiloxane Solvent-Thinned Paint (Topcoat): 2 gal. of each color applied. PAGE 3 FILE: CFRST-Intumescent Mastic Fireproofing REVISED: 01/22/ , Marriott International, Inc. CFRST SPECMSTR-NEW BUILD

4 1.09 WARRANTY A. General: The warranty specified in this Article shall not deprive the Owner of other rights the Owner may have under other provisions of the Contract Documents and shall be in addition to and run concurrent with other warranties made by the Contractor under requirements of the Contract Documents. B. Warranty: Submit a written warranty, executed by Contractor and cosigned by installer, agreeing to repair or replace Intumescent Mastic Fireproofing that has failed within the specified warranty period. Failures include, but are not limited to, the following: 1. Cracking, flaking, eroding in excess of specified requirements, peeling, and delaminating of sprayed-on fireproofing from substrates due to defective materials and workmanship within the specified warranty period. 2. Not covered under the warranty are failures attributable to damage by occupants and Owner's maintenance personnel, exposure to environmental conditions other than those investigated and approved during fire-response testing, and to other causes not reasonably foreseeable under conditions of normal use. C. Warranty Period: Two years from date of Substantial Completion. PART 2 PRODUCTS 2.01 MANUFACTURERS A. Avendra, LLC Preferred Manufacturers: 1. None B. Approved Manufacturers 2.02 MATERIALS 1. Albi Manufacturing; a division of StanChem, Inc.( ) 2. Carboline Company; a subsidiary of RPM International. ( ) 3. International Paint LTD, a division of Akzo Nobel ( ) A. Primer 1. Primer shall be approved by manufacturer and applied in fun accordance with the primer manufacturer's written instructions. 2. Shop Priming (By Structural Steel Fabricator) Refer to Section Structural Steel Framing. B. Intumescent Mastic Fireproofing System 1. Intermediate Coat: Intumescent-type, fire-protection system. C. Top Coat a. Thickness: Material applied at spreading rate recommended by manufacturer to achieve a total dry film thickness of not less than inch 1. Top Coat materials shall be as required for color coding, aesthetics or additional surface protection, and approved by the fire protection material manufacturer. a. Color: Refer to Interior Finish Index. 2. Topcoat: Two-component polysiloxane Solvent-Thinned Paint Finish Coat for interior and exterior use. REVISED: 01/22/16 PAGE 4 FILE: CFRST-Intumescent Mastic Fireproofing CFRST SPECMSTR-NEW BUILD 2016, Marriott International, Inc.

5 a. Thickness: Approximate dry film thickness: 2-3 mils. b. Color: Custom color to match colors shown on Interior Finish Index. D. Reinforcing Fabric: 1. Glass- or carbon-fiber fabric of type, weight, and form required to comply with fireresistance designs indicated; approved and provided by fireproofing manufacturer. E. Reinforcing Mesh: 2.03 FIRE RATING 1. Metallic mesh reinforcement of type, weight, and form required to comply with fireresistance design indicated; approved and provided by fireproofing manufacturer. Include pins and attachment. A. Furnish and install manufacturer's system required to provide 1-hour rating. PART 3 EXECUTION 3.01 EXAMINATION A. Examine substrates with installer present to determine if they are in satisfactory condition to receive sprayed-on fireproofing. A substrate is in satisfactory condition if it complies with the following: 3.02 PREPARATION 1. Substrates comply with requirements in the Section where the substrate and related materials and construction are specified. 2. Substrates are free of oil, grease, rolling compounds, incompatible primers, loose mill scale, dirt, or other foreign substances capable of impairing bond of fireproofing with substrate under conditions of normal use or fire exposure. 3. Objects penetrating fireproofing, including clips, hangers, support sleeves, and similar items, are securely attached to substrates. 4. Substrates are not obstructed by ducts, piping, equipment, and other suspended construction that will interfere with applying the fireproofing. 5. Verify that ducts, piping, equipment, or other items which would interfere with application of fireproofing materials are not positioned until fireproofing work is complete. 6. Fill voids and cracks in substrate, remove projections and level where sprayed fireproofing is exposed to view as finish material. 7. Remove incompatible materials which may affect bond of sprayed fireproofing. 8. Conduct tests according to sprayed-on fireproofing manufacturer's recommendations to verify that substrates are free of oil, rolling compounds, and other substances capable of interfering with bond where there is any doubt as to their presence. 9. Do not proceed with installation of fireproofing until unsatisfactory conditions have been corrected. 10. Starting of installation indicates acceptance of substrate by installer of fireproofing. A. All surfaces to receive are protection material shall be clean, dry and free of oil, grease, loose mill scale, dirt, dust or other materials which would impair bond of the fire protection material to the surface. Any cleaning of the surfaces to receive fire protection material shall be the responsibility of the General Contractor or steel erector, as outlined in the structural steel section. PAGE 5 FILE: CFRST-Intumescent Mastic Fireproofing REVISED: 01/22/ , Marriott International, Inc. CFRST SPECMSTR-NEW BUILD

6 B. Confirm compatibility of surfaces to receive one protection material. Steel surfaces shall be primed with a compatible primer recommended by the are protection material manufacturer. C. Provide masking, drop cloths, or other suitable coverings to prevent overspray onto surfaces not intended to be sprayed with intumescent coating. D. Fire-Resistance Design: Indicated on Drawings, tested according to ASTM E 119; with testing by a qualified testing agency. Identify products with appropriate markings of applicable testing agency APPLICATION 1. Steel members are to be considered unrestrained unless specifically noted otherwise. A. The fire protection material shall be applied in sufficient wet film thicknesses to achieve the required fire resistance rating with as many passes as necessary, to attain required dry film thickness MOCK UP A. Before proceeding with the work, the applicator shall apply the fire protection material to a section witnessed by the Architect's or Owner's representative and shall be subject to their approval CLEAN UP AND REPAIR A. Upon completion of installation, all excess material, overspray, crowing and debris shall be cleared and removed from the job site. B. All patching of and repair to are protection material, due to damage by over trades, shall be performed under this section and paid for by the trade responsible for the damage. Patching shall be performed by applicators licensed or otherwise approved by material supplier INSPECTION AND TESTING A. In addition to continuous Wet Film Thickness checks performed by applicator during application, the installed intumescent shall be inspected by a qualified independent testing laboratory for thickness in accordance wife the Steel Structures Painting Council Dry Film Thickness testing before application of Top Coat. B. The results of the above tests shall be made available to all parties at the completion of each area and approved prior to the application of Top Coat. END OF SECTION REVISED: 01/22/16 PAGE 6 FILE: CFRST-Intumescent Mastic Fireproofing CFRST SPECMSTR-NEW BUILD 2016, Marriott International, Inc.