SECTION 07 56 00 - Fluid-Applied Roofing

FLUID-APPLIED ROOFING AND WATERPROOFING SYSTEMS

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** NOTE TO SPECIFIER ** DERBIGUM Americas, Inc.; fluid-applied roofing and waterproofing systems.
This section is based on the products of DERBIGUM Americas, Inc., which is located at:
4800 Blue Parkway.
Kansas City, MO 64130.
Toll Free Tel: (800) 727-9872.
Tel: (816) 921-0221.
Fax: (816) 924-1542.
Email:.
Web:
DERBIGUM Americas, Inc. made its introduction to the United States roofing market in 1979 when a group of roofing contractors-turned-investors purchased the marketing and manufacturing rights to DERBIGUM in North America. Known then as DERBIGUM America Corporation, DERBIGUM offered American building owners a durable alternative to failing built-up roofs and flimsy EPDM and PVC single ply membranes. Its success and acceptance was immediate.
Today, DERBIGUM is an undisputed industry leader. With 350 employees worldwide, the company is present across the United States, Europe, Africa and Asia. Three production sites - two in Belgium and one in the US - turn out over 161 million square feet of DERBIGUM membranes and 77 million lbs of liquid products annually.

PART 1 GENERAL

1.1 SECTION INCLUDES

** NOTE TO SPECIFIER ** Delete items below not required for project.

A. Fluid-Applied Roofing And Waterproofing Systems Including the Following:

1. Adhered fully reinforced, cold fluid-applied, polyurethane liquid resin waterproofing membrane system including membrane, penetration flashings, base flashings, and expansion joints.

2. Substrate preparation, cleaning, leveling and patching.

3. Insulation and base/ply sheet installation.

4. Temporary waterproofing and priming.

5. Waterproofing membrane installation.

6. Flashing installation and expansion joint installation.

7. Protective surfacing.

8. Alkalinity protection.

9. Preparation for overburden installation.

1.2 RELATED SECTIONS

** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.

A. Section 06 10 00 - Rough Carpentry.

B. Section 07 25 00 - WeatherBarriers.

C. Section 07 26 00 - Vapor Retarders.

D. Section 22 30 00 - Plumbing Equipment.

1.3 REFERENCES

** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.

A. National Roofing Contractors Association (NRCA) Roofing and Waterproofing Manual.

B. American Concrete Institute: ACI 308 - Standard Practice for Curing Concrete.

C. ASTM International, Inc.:

1. ASTM C 177 - Standard Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the Guarded-Hot-Plate Apparatus.

2. ASTM C 578 - Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation.

3. ASTM C 1289 - Standard Specification for Faced Rigid Cellular Polyisocyanurate Thermal Insulation Board.

4. ASTM D 41 - Standard Specification for Asphalt Primer Used in Roofing, Dampproofing, and Waterproofing.

5. ASTM D 312 - Standard Specification for Asphalt Used in Roofing.

6. ASTM D 471 - Standard Test Method for Rubber Property - Effect of Liquids.

7. ASTM D 751 - Standard Test Methods for Coated Fabrics.

8. ASTM D 1204 - Standard Test Method for Linear Dimensional Changes of Nonrigid Thermoplastic Sheeting or Film at Elevated Temperature.

9. ASTM D 2240 - Standard Test Method for Rubber Property - Durometer Hardness.

10. ASTM D 4259 - Standard Practice for Abrading Concrete.

11. ASTM E 96 - Standard Test Methods for Water Vapor Transmission of Materials.

D. Underwriters Laboratories (UL): ANSI/UL 790 - Standard Test Methods of Roof Coverings.

E. International Concrete Repair Institute (ICRI): Guideline 03732 Concrete Surface Preparation.

F. Steel Structures Painting Council (SSPC): Surface Preparation Specification No. 3.

1.4 SUBMITTALS

A. Submit under provisions of Section 01 30 00 - Administrative Requirements.

B. Product Data: Provide current standard printed product literature indicating characteristics of membrane materials, flashing materials, components, and accessories product specification and installation; submit copies of current Material Safety Data Sheets (MSDS) for components of the work:

1. Preparation instructions and recommendations.

2. Storage and handling requirements and recommendations.

3. Cleaning methods.

C. Shop Drawings: Submit shop drawings of cold fluid-applied reinforced polyurethane showing a project plan, size, flashing details, and attachment for review and approval by the Owners Representative and Membrane Manufacturer.

D. Warranty Documentation: Submit 2 executed copies of both the manufacturer and applicator warranties for the periods stipulated, starting from the date of the substantial completion. Each warranty must be signed by an authorized representative of the issuing company.

** NOTE TO SPECIFIER ** Delete selection samples if colors have already been selected.

E. Selection Samples: Two complete sets of samples, representing manufacturer's full range of available products, colors, textures, thicknesses and surfacing.

F. Verification Samples: For each product and finish specified, two samples representing actual products, colors, textures, thicknesses and surfacing.

1.5 QUALITY ASSURANCE

A. Membrane Manufacturer Qualifications: Company specializing in manufacturing fully reinforced cold fluid-applied liquid resin waterproofing membrane systems with a minimum of 10 years of documented applications in the United States. Membrane Manufacturer shall submit the following certifications for review:

1. Substrates and conditions are acceptable for purpose of providing specified warranty.

2. Materials supplied shall meet the specified requirements.

B. Applicator Qualifications: Company specializing in performing the work of this section with 3 years documented experience and approved by system manufacturer for warranted membrane installation. Applicator shall submit the following certification for review:

1. Applicator shall submit documentation from the membrane manufacturer to verify contractor's status as an approved applicator for warranted installations.

C. Evaluate moisture content of substrate materials. Contractor shall determine substrate moisture content throughout the work and record with Daily Inspection Reports or other form of reporting acceptable to the Owner or designated Representative and Membrane Manufacturer.

D. Random tests to determine tensile bond strength of membrane to substrate shall be conducted by the Contractor at the job site using an Elcometer Adhesion Tester Model 106 or similar device, or by the performance of a manual pull test. Contractor shall perform tests at the beginning of the Work, and at intervals as required to assure specified adhesion with a minimum of 3 tests. Test results shall be submitted to the Owner or his designated Representative and the Membrane Manufacturer. Contractor shall immediately notify the Owner or his designated Representative and Membrane Manufacturer in the event bond test results are below specified values.

1. Adequate surface preparation will be indicated by tensile bond strength of membrane to substrate greater than or equal to 220 psi (1.5 N/mm2) , as determined by use of an adhesion tester.

2. Adequate surface preparation will be indicated by 135o peel bond strength of membrane to substrate such that cohesive failure of substrate or membrane occurs before adhesive failure of membrane/substrate interface.

3. In the event the bond strengths are less than the minimum specified, additional substrate preparation is required. Repeat testing to verify suitability of substrate preparation.

E. Monitor quantities of installed materials. Monitor application of resin mixture, reinforcing fleece and flashing. Perform Work in accordance with manufacturer's instructions.

** NOTE TO SPECIFIER ** Include a mock-up if the project size and/or quality warrant taking such a precaution. The following is one example of how a mock-up on a large project might be specified. When deciding on the extent of the mock-up, consider all the major different types of work on the project.

F. Mock-Up: Provide a completely assembled, typical wall areas installed with related accessories, in composite configurations designed to fulfill the performance criteria, and representative of the design as shown on the Drawings.

1. Locate mock-up in location as directed by the Architect.

2. Do not proceed with remaining work until workmanship is approved by Architect.

3. Prepare and clean a 3 ft (0.9 m) by three ft (0.9 m) area of each substrate material type.

** NOTE TO SPECIFIER ** Delete one of the two following options.

4. Mock-up area may become part of finished work.

5. Mock-up area may not become part of finished work.

1.6 FIELD INSPECTION SERVICES

A. Manufacturer's technical representative shall provide the following inspections of the membrane application:

1. Job start inspection at the beginning of each phase of the project, to review special detailing conditions and substrate preparation.

2. Periodic in-progress inspections throughout duration of the project to evaluate membrane and flashing application.

3. Final punch-list inspection at the completion of each phase of the project prior to installation of any surfacing or overburden materials.

4. Warranty inspection to confirm completion of punch list items, surfacing, and overburden application.

1.7 DELIVERY, STORAGE, AND HANDLING

A. Deliver, store and handle materials and products in strict compliance with manufacturer's instructions and recommendations and industry standards.

B. Store materials in manufacturer's original sealed, labeled packaging until ready for installation and in accordance with manufacturer's instructions. Protect from damage.

1. The Contractor together with the Owner, or his designated Representative, shall define a storage area for components. The area shall be cool (between 65 degrees - 70 degrees F or 18 degrees - 21 degrees C) , dry, out of direct sunlight, and in accordance with manufacturer's recommendations and relevant regulatory agencies. Materials shall not be stored in quantities that will exceed design loads, damages substrate materials, hinder installation or drainage.

2. Store solvent-bearing solutions, resins, additives, inhibitors or adhesives in accordance with the MSDS and/or local fire authority. After partial use of materials replace lids promptly and tightly to prevent contamination.

3. Roll goods shall be stored horizontally on platforms sufficiently elevated to prevent contact with water and other contaminants. DO NOT use rolls that are wet, dirty or have damaged ends.

4. Roofing/Waterproofing materials must be kept dry at all times. If stored outside, raise materials above ground or roof level on pallets and cover with a tarpaulin or other waterproof material. Plastic wrapping installed at the factory should not be used as outside storage covers. Product must be stored between 65 degrees - 70 degrees F (18 degrees - 21 degrees C).

5. Follow manufacturer's direction for protection of materials prior to and during installation. Do not use materials that have been damaged to the point that they will not perform as specified. Fleece reinforcing materials must be clean, dry and free of contaminants.

6. Copies of current MSDS for components shall be kept on site. Provide any and crewmembers with appropriate safety data information and training as it relates to the specific chemical compound he or she may be expected to deal with. Each crewmember shall be fully aware of first aid measures to be undertaken in case of incidents. Comply with requirements of OSHA, NIOSH or local governing authority for work place safety.

1.8 PROJECT CONDITIONS

A. Maintain environmental conditions (temperature, humidity and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's absolute limits.

1. Do not apply roofing/waterproofing membrane during or with the threat of inclement weather.

2. Application of cold fluid-applied reinforced polyurethane roofing/waterproofing membrane may proceed while air temperature is between 50 degrees F (10 degrees C) and 85 degrees F (30 degrees C) providing the substrate is a minimum of 5 degrees F above the dew point.

3. When ambient temperatures are at or expected to fall below 50 degrees F (10 degrees C) , or reach 85 degrees F (30 degrees C) or higher, follow Membrane System Manufacturer's recommendations for weather related additives and application procedures.

4. Ensure that substrate materials are dry and free of contaminants. DO NOT commence with the application unless substrate conditions are suitable. Contractor shall demonstrate that substrate conditions are suitable for the application of the materials.

5. Odor control and elimination measures are not typically necessary, but if required by the owner or his designated Representative, Contractor shall implement odor control and elimination measures prior to and during the application of the roofing/waterproofing materials. Control/elimination measures shall be field tested at off-hours and typically consists of one or a multiple of the following measures:

a. Sealing of air intakes with activated carbon filters. Install filters in accordance with requirements and recommendations of filter manufacturer. Seal filters at joints and against building exterior walls to prevent leakage of unfiltered air where required due to size of intake opening. Provide track system to secure filters.

b. Erection and use of moveable enclosures sized to accommodate work areas and stationary enclosure for resin mixing station. Enclosure shall be field constructed or pre-manufactured of fire retardant materials in compliance with local code requirements in accordance with requirements of the Owner or his designated Representative. Equipment enclosures with mechanical air intake/exhaust openings and Odor Control Air Cleaners, as required to clean enclosed air volume and to prevent odor migration outside the enclosure. Exhaust opening shall be sealed with activated carbon filter.

c. Placement of odor elimination stations inside and outside of the enclosures as required by field condition, in coordination with the Owner or his designated Representative.

6. Protection of Contractor personnel and occupants of the structure and surrounding buildings as necessary to comply with requirements of OSHA, NIOSH and/or governing local authority.

1.9 SEQUENCING, SCHEDULING AND TEMPORARY PROTECTION

A. Convene a pre-installation meeting at the jobsite 1 week before starting work of this section.

1. Require attendance of parties directly affecting work of this section, including but not limited to the following:

** NOTE TO SPECIFIER ** Delete options from the list below not required.

a. Architect.

b. Engineer.

c. Roofing/Waterproofing Consultant.

d. Owner's Representative.

e. Roofing/Waterproofing Contractor.

f. Membrane Manufacturer's Representative.

2. Review roofing/waterproofing preparation and installation procedures, coordination and scheduling required with related work, and condition and structural loading limitations of deck/substrate.

3. Coordinate the work with the installation of associated metal flashings, accessories, appurtenances and adjacent construction.

B. Temporary Protection:

1. Building components shall be protected adequately (with tarp or other suitable material) from soil, stains, or spills at hoisting points and area of application. Contractor shall be responsible for preventing damage from any operation under its contract. Any such damage shall be repaired at Contractor's expense to Owner's satisfaction or be restored to original condition.

2. Provide barricades, retaining ropes, safety elements (active/passive) and any appropriate signage required by OSHA, NIOSH, and NSC and/or the Owner or designated Representative.

3. Protect finished roofing/waterproofing membrane from damage by other trades. Do not allow waste products containing hydrocarbons such as petroleum, grease, acid, solvents, vegetable or mineral oil, animal oil or animal fat, or direct steam venting to come into direct contact with the membrane.

** NOTE TO SPECIFIER ** Delete warranty options not required.

1.10 WARRANTY

A. Manufacturer's Material Warranty: Provide manufacturer's material only warranty under provisions of this section; for supply of membrane only, limited to amounts necessary to effect repairs necessitated solely by material defective in content and composition.