About this file

This document provides details for a federal construction solicitation for the modernization of the Agricultural Research Technology Center in Salinas, California. The solicitation will utilize the design-bid-build project delivery method for the construction of new research buildings to replace outdated facilities. The project scope involves demolishing existing buildings and constructing new facilities in two phases, including a West/East Lab and Office totaling 71,000 GSF in Phase 1 and a Headhouse/Greenhouse totaling 37,000 GSF in Phase 2. The contract period of performance is approximately 1440 calendar days after notice to proceed. The NAICS code is 236220 and small business size standard is $36.5 million. The contract will be awarded using best value tradeoff, weighting past performance, team experience, and project management most heavily against cost. Bid bonds are required and payment and performance bonds will be required of the successful offeror. The solicitation documents will be available on FedBizOpps on or about August 28, 2019 with a pre-proposal site walkthrough on September 12, 2019. Proposals will be due on or about October 11, 2019.

View the file

Other files

Show all 29

On GovTribe

Work with this file

  • Download the original file
  • Contacts named in this file
  • Similar government files
  • Ask GovTribe AI about this file

Text version

USDA Agricultural Research Technology Center December 27, 2019 Laboratory Specifications (VOL. 1) Bid Set - Amendment 0002

PROJECT TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

01 11 00 SUMMARY OF WORK

01 14 00 WORK RESTRICTIONS

01 30 00 ADMINISTRATIVE REQUIREMENTS

01 32 01.00 10 PROJECT SCHEDULE

01 33 00 SUBMITTAL PROCEDURES

01 33 29 SUSTAINABILITY REPORTING

01 35 26 GOVERNMENTAL SAFETY REQUIREMENTS

01 42 00 SOURCES FOR REFERENCE PUBLICATIONS

01 45 00.00 10 QUALITY CONTROL

01 45 35 SPECIAL INSPECTIONS

01 50 00 TEMPORARY CONSTRUCTION FACILITIES AND CONTROLS

01 57 19 TEMPORARY ENVIRONMENTAL CONTROLS

01 58 00 PROJECT IDENTIFICATION

01 74 19 CONSTRUCTION AND DEMOLITION WASTE MANAGEMENT

01 78 00 CLOSEOUT SUBMITTALS

01 78 23 OPERATION AND MAINTENANCE DATA

01 91 00.15 TOTAL BUILDING COMMISSIONING

DIVISION 02 - EXISTING CONDITIONS

02 81 00 TRANSPORTATION AND DISPOSAL OF HAZARDOUS MATERIALS

02 82 13.00 10 ASBESTOS ABATEMENT

02 82 16.00 20 ENGINEERING CONTROL OF ASBESTOS CONTAINING MATERIALS

02 82 33.13 20 REMOVAL/CONTROL AND DISPOSAL OF PAINT WITH LEAD

02 83 13.00 20 LEAD IN CONSTRUCTION

02 83 19.13 10 LEAD-BASED PAINT ABATEMENT

02 84 16 HANDLING OF LIGHTING BALLASTS AND LAMPS CONTAINING PCBs

AND MERCURY

02 84 33 REMOVAL AND DISPOSAL OF POLYCHLORINATED BIPHENYLS (PCBs)

DIVISION 03 - CONCRETE

03 11 13.00 10 STRUCTURAL CAST-IN-PLACE CONCRETE FORMING

03 15 00.00 10 CONCRETE ACCESSORIES

03 20 00.00 10 CONCRETE REINFORCING

03 30 00.00 10 CAST-IN-PLACE CONCRETE

03 30 53 MISCELLANEOUS CAST-IN-PLACE CONCRETE

03 35 00.00 10 CONCRETE FINISHING

03 39 00.00 10 CONCRETE CURING

03 42 13.00 10 PLANT-PRECAST CONCRETE PRODUCTS FOR BELOW GRADE

CONSTRUCTION

DIVISION 04 - MASONRY

04 20 00 UNIT MASONRY

DIVISION 05 - METALS

05 05 23.13 10 ULTRASONIC INSPECTION OF WELDMENTS

05 05 23.16 STRUCTURAL WELDING

05 12 00 STRUCTURAL STEEL

05 30 00 STEEL DECKS

05 40 00 COLD-FORMED METAL FRAMING

05 50 13 MISCELLANEOUS METAL FABRICATIONS

05 50 14 STRUCTURAL METAL FABRICATIONS

PROJECT TABLE OF CONTENTS Page 1

03 33 00 CAST-IN-PLACE ARCHITECTURAL CONCRETE Amend. 0008 12/27/2019

05 51 00 METAL STAIRS

05 52 00 METAL RAILINGS

DIVISION 06 - WOOD, PLASTICS, AND COMPOSITES

06 10 00 ROUGH CARPENTRY

06 18 00 GLUED-LAMINATED CONSTRUCTION

06 20 00 FINISH CARPENTRY

06 41 16.00 10 PLASTIC-LAMINATE-CLAD ARCHITECTURAL CABINETS

06 61 16 SOLID SURFACING FABRICATIONS

DIVISION 07 - THERMAL AND MOISTURE PROTECTION

07 05 23 PRESSURE TESTING AN AIR BARRIER SYSTEM FOR AIR TIGHTNESS

07 14 00 FLUID-APPLIED WATERPROOFING

07 21 13 BOARD AND BLOCK INSULATION

07 21 16 MINERAL FIBER BLANKET INSULATION

07 22 00 ROOF AND DECK INSULATION

07 27 10.00 10 BUILDING AIR BARRIER SYSTEM

07 42 13 METAL WALL PANELS

07 42 23 EXTERIOR WOOD WALL PANELS

07 43 10 EXTERIOR REAL WOOD COMPOSITE WALL PANELS

07 44 56 FIBER-REINFORCED CEMENTITIOUS WALL PANELS

07 54 23 THERMOPLASTIC POLYOLEFIN (TPO) ROOF MEMBRANE

07 60 00 FLASHING AND SHEET METAL Amend. 0008 12/27/2019

07 81 00 SPRAY-APPLIED FIREPROOFING

07 84 00 FIRESTOPPING

07 92 00 JOINT SEALANTS

DIVISION 08 - OPENINGS

08 11 13 STEEL DOORS AND FRAMES

08 11 16 ALUMINUM DOORS AND FRAMES

08 14 00 WOOD DOORS

08 44 00 CURTAIN WALL AND GLAZED ASSEMBLIES

08 51 13 ALUMINUM WINDOWS

08 60 45 SKYLIGHTS

08 71 00 DOOR HARDWARE

08 81 00 GLAZING

08 91 00 METAL LOUVERS

DIVISION 09 - FINISHES

09 22 00 SUPPORTS FOR PLASTER AND GYPSUM BOARD

09 24 23 CEMENT STUCCO

09 29 00 GYPSUM BOARD

09 30 10 CERAMIC, QUARRY, AND GLASS TILING

09 51 00 ACOUSTICAL CEILINGS

09 65 00 RESILIENT FLOORING

09 66 14 PRECAST TERRAZZO STAIR TREADS

09 68 00 CARPETING

09 72 00 WALLCOVERINGS

09 90 00 PAINTS AND COATINGS Amend. 0008 12/27/19

DIVISION 10 - SPECIALTIES

10 11 00 VISUAL DISPLAY UNITS

10 14 00.10 EXTERIOR SIGNAGE

10 14 00.20 INTERIOR SIGNAGE

PROJECT TABLE OF CONTENTS Page 2

Amend. 0002 10/11/2019

Amend. 0008 12/27/2019

10 21 13 TOILET COMPARTMENTS

10 22 26.13 ACCORDION FOLDING PARTITIONS

10 26 00 WALL AND DOOR PROTECTION

10 28 13 TOILET ACCESSORIES

10 44 16 FIRE EXTINGUISHERS

DIVISION 11 - EQUIPMENT

11 53 00 LABORATORY EQUIPMENT AND FUMEHOODS

11 71 00 STERILIZERS

11 78 00 INSTALLATION OF GOVERNMENT-FURNISHED EQUIPMENT (PHASE 1)

DIVISION 12 - FURNISHINGS

12 21 00 WINDOW BLINDS

12 24 13 ROLLER WINDOW SHADES

12 31 00 LABORATORY CASEWORK AND OTHER FURNISHINGS

12 48 13 ENTRANCE FLOOR MATS AND FRAMES

12 93 00 SITE FURNISHINGS

DIVISION 13 - SPECIAL CONSTRUCTION

13 12 13 SPECIAL CONSTRUCTION - FOUNTAINS

13 21 26 COLD-STORAGE ROOMS (PREFABRICATED PANEL TYPE)

13 34 13 GREENHOUSE

13 48 00 SEISMIC PROTECTION FOR MISCELLANEOUS EQUIPMENT

13 48 00.00 10 SEISMIC PROTECTION FOR MECHANICAL EQUIPMENT

13 80 00 SEISMIC PROTECTION FOR MISCELLANEOUS EQUIPMENT

DIVISION 14 - CONVEYING EQUIPMENT

14 24 23 HYDRAULIC PASSENGER ELEVATORS

DIVISION 21 - FIRE SUPPRESSION

21 12 00 STANDPIPE SYSTEMS

21 13 13.00 10 WET PIPE SPRINKLER SYSTEM, FIRE PROTECTION

DIVISION 22 - PLUMBING

22 00 00 PLUMBING, GENERAL PURPOSE

22 07 19.00 40 PLUMBING PIPING INSULATION

22 14 29.00 40 SUMP PUMPS

22 15 09.00 40 GENERAL SERVICE COMPRESSED-AIR SYSTEMS CLEANING PROCEDURES

22 15 14.00 40 GENERAL SERVICE COMPRESSED-AIR SYSTEMS, LOW PRESSURE

22 15 26.00 20 HIGH AND MEDIUM PRESSURE COMPRESSED AIR PIPING

22 31 00 WATER SOFTENERS, CATION-EXCHANGE (SODIUM CYCLE)

22 32 00 HIGH PURITY WATER FILTRATION EQUIPMENT

22 66 53.00 40 LABORATORY CHEMICAL-WASTE AND VENT PIPING

DIVISION 23 - HEATING, VENTILATING, AND AIR CONDITIONING (HVAC)

23 03 00.00 20 BASIC MECHANICAL MATERIALS AND METHODS

23 05 48.00 40 VIBRATION AND SEISMIC CONTROLS FOR HVAC PIPING AND

EQUIPMENT

23 05 93 TESTING, ADJUSTING, AND BALANCING FOR HVAC

23 07 00 THERMAL INSULATION FOR MECHANICAL SYSTEMS

23 09 00 INSTRUMENTATION AND CONTROL FOR HVAC

23 11 25 FACILITY GAS PIPING

PROJECT TABLE OF CONTENTS Page 3

Amend. 0002 10/11/2019 Amend. 0002 10/11/2019

Amend. 0002 10/11/2019

10 71 13 EXTERIOR SUN CONTROL DEVICES Amend. 0008 12/27/2019

Amend. 0008 12/27/2019

23 23 00 REFRIGERANT PIPING

23 31 13.00 40 METAL DUCTS

23 52 43.00 20 LOW PRESSURE WATER HEATING BOILERS (UNDER 800,000 BTU/HR

OUTPUT)

23 63 00.00 10 COLD STORAGE REFRIGERATION SYSTEMS

23 64 10 WATER CHILLERS, VAPOR COMPRESSION TYPE

23 64 26 CHILLED, CHILLED-HOT, AND CONDENSER WATER PIPING SYSTEMS

23 73 13.00 40 MODULAR INDOOR CENTRAL-STATION AIR-HANDLING UNITS

DIVISION 26 - ELECTRICAL

26 00 00.00 20 BASIC ELECTRICAL MATERIALS AND METHODS

26 05 48.00 10 SEISMIC PROTECTION FOR ELECTRICAL EQUIPMENT

26 08 00 APPARATUS INSPECTION AND TESTING

26 09 23.00 40 LIGHTING CONTROL DEVICES

26 09 43 NETWORK LIGHTING CONTROLS - LUTRON QUANTUM

26 20 00 INTERIOR DISTRIBUTION SYSTEM

26 24 13 SWITCHBOARDS

26 28 01.00 10 COORDINATED POWER SYSTEM PROTECTION

26 32 15.00 10 DIESEL-GENERATOR SET STATIONARY 100-2500 KW, WITH

AUXILIARIES

26 36 23.00 20 AUTOMATIC TRANSFER SWITCHES

26 51 00 INTERIOR LIGHTING

26 56 00 EXTERIOR LIGHTING

DIVISION 27 - COMMUNICATIONS

27 05 14 CABLE TELEVISION PREMISES DISTRIBUTION SYSTEM

27 05 14.00 10 CABLE TELEVISION PREMISES DISTRIBUTION SYSTEM

27 10 00 BUILDING TELECOMMUNICATIONS CABLING SYSTEM

27 51 16 RADIO AND PUBLIC ADDRESS SYSTEMS

DIVISION 28 - ELECTRONIC SAFETY AND SECURITY

28 08 10 ELECTRONIC SECURITY SYSTEM ACCEPTANCE TESTING

28 10 05 ELECTRONIC SECURITY SYSTEMS (ESS)

28 31 64.00 10 FIRE DETECTION AND ALARM SYSTEM, ADDRESSABLE

DIVISION 31 - EARTHWORK

31 00 00 EARTHWORK

31 05 19 GEOTEXTILE

31 11 00 CLEARING AND GRUBBING

31 23 00.00 20 EXCAVATION AND FILL

31 32 11 SOIL SURFACE EROSION CONTROL

DIVISION 32 - EXTERIOR IMPROVEMENTS

32 01 19 FIELD MOLDED SEALANTS FOR SEALING JOINTS IN RIGID

PAVEMENTS

32 05 33 LANDSCAPE ESTABLISHMENT

32 11 16 BASE COURSE FOR RIGID AND SUBBASES FOR FLEXIBLE PAVING

32 11 16.16 BASE COURSE FOR RIGID AND SUBBASE COURSE FOR FLEXIBLE

SUBBASE COURSE FOR PERVIOUS PAVING

32 11 20 BASE COURSE FOR RIGID AND SUBBASES FOR FLEXIBLE PAVING

32 11 23 AGGREGATE AND/OR GRADED-CRUSHED AGGREGATE BASE COURSE

32 11 26 BITUMINOUS BASE COURSE

32 11 26.16 BITUMINOUS CONCRETE BASE COURSE

32 11 27 BITUMINOUS-STABILIZED BASE COURSE, SUBBASE, OR SUBGRADE

PROJECT TABLE OF CONTENTS Page 4

32 12 13 BITUMINOUS TACK AND PRIME COATS

32 12 16 HOT-MIX ASPHALT (HMA) FOR ROADS

32 12 17 HOT MIX BITUMINOUS PAVEMENT

32 12 19 BITUMINOUS BINDER AND WEARING COURSES (CENTRAL-PLANT

COLD-MIX)

32 12 21 BITUMINOUS ROAD-MIX SURFACE COURSE

32 13 13.06 PORTLAND CEMENT CONCRETE PAVEMENT FOR ROADS AND SITE

FACILITIES

32 13 43 PERVIOUS CONCRETE PAVING

32 13 73 COMPRESSION JOINT SEALS FOR CONCRETE PAVEMENTS

32 16 13 CONCRETE SIDEWALKS AND CURBS AND GUTTERS

32 16 15 CONCRETE BLOCK PAVEMENTS

32 17 23 PAVEMENT MARKINGS

32 84 24 IRRIGATION SPRINKLER SYSTEMS

32 92 19 SEEDING

32 92 23 SODDING

32 93 00 EXTERIOR PLANTS

32 96 00 TRANSPLANTING EXTERIOR PLANTS

DIVISION 33 - UTILITIES

33 11 00 WATER UTILITY DISTRIBUTION PIPING

33 11 23 NATURAL GAS AND LIQUID PETROLEUM PIPING

33 12 33.00 30 WATER METERS

33 30 00 SANITARY SEWERS

33 40 00 STORM DRAINAGE UTILITIES

33 46 16 SUBDRAINAGE PIPING

33 47 13 POND AND RESERVOIR LINERS

33 71 01 OVERHEAD TRANSMISSION AND DISTRIBUTION

33 71 02 UNDERGROUND ELECTRICAL DISTRIBUTION

33 82 00 TELECOMMUNICATIONS OUTSIDE PLANT (OSP)

-- End of Project Table of Contents --

PROJECT TABLE OF CONTENTS Page 5

32 31 13 CHAIN LING FENCES AND GATES Amend. 0002 12/27/2019

USDA Agricultural Research Technology Center Amendment 8 Laboratory Specifications (VOL. 1) December 27, 2019

SECTION 03 33 00

CAST-IN-PLACE ARCHITECTURAL CONCRETE (Issued Amendment 8) 11/09

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN CONCRETE INSTITUTE INTERNATIONAL (ACI)

ACI 211.1 (1991; R 2009) Standard Practice for Selecting Proportions for Normal, Heavyweight and Mass Concrete

ACI 211.2 (1998; R 2004) Standard Practice for Selecting Proportions for Structural Lightweight Concrete

ACI 301 (2016) Specifications for Structural Concrete

ACI 318 (2014; Errata 1-2 2014; Errata 3-5 2015;

Errata 6 2016; Errata 7-9 2017) Building Code Requirements for Structural Concrete (ACI 318-14) and Commentary (ACI 318R-14)

ACI 347R (2014; Errata 1 2017) Guide to Formwork for Concrete

ACI SP-66 (2004) ACI Detailing Manual

ASTM INTERNATIONAL (ASTM)

ASTM A36/A36M (2014) Standard Specification for Carbon Structural Steel

1.2 SYSTEM DESCRIPTION

All materials, procedures, and requirements specified in Section 03 30 00 CAST-IN-PLACE CONCRETE shall fully apply to cast-in-place architectural concrete, except as otherwise specified.

1.2.1 Concrete Mix Design

Design the concrete mix in accordance with ACI 211.1 and ACI 211.2 including consideration of the finishes required.

1.2.2 Formwork Design

Design formwork conforming to ACI 301 and ACI 347R .

SECTION 03 33 00 Page 1

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Detail Drawings .

SD-04 Samples

Materials Panels

1.4 QUALITY ASSURANCE

1.4.1 Detail Drawings

Submit detail drawings conforming to ACI SP-66 and ACI 318 . Detail drawings shall show location of cast-in-place elements in the work, building elevations, formwork fabrication details, reinforcements, embedments, dimensions, concrete strength, interface with adjacent materials, and special placing instructions, in sufficient detail to cover fabrication, placement, stripping, and finishing.

1.4.2 Panels

Provide sample panels 6 feet long and 4 feet high with the thickness to match building conditions for each type of architectural concrete and finish, located where directed. Panel forms shall include a typical joint between form panels, form tie conditions and finishes. Protect panels from weather, and other damage until acceptance of work. Sample panels shall be used as job standards throughout construction. Submit a sample panel for approval.

PART 2 PRODUCTS

2.1 MATERIALS

Submit samples of materials listed below, indicating sizes, shapes, finishes, color, and pertinent accessories: [_____].

2.1.1 Aggregates

Aggregates shall conform to [_____].

2.1.2 Reinforcing Steel

Reinforcing steel shall be galvanized if clearance to an exterior face is 1 inch or less.

2.1.3 Tie Wire

Tie wire shall be soft monel or 18-8 stainless steel.

SECTION 03 33 00 Page 2

2.1.4 Plates, Angles, Anchors, and Embedments

Plates, angles, anchors, and embedments shall conform to ASTM A36/A36M, and shall be prime painted with inorganic zinc primer.

2.1.5 Formwork

Formwork for special effects shall be as approved.

2.1.6 Form Release Agents

Form release agents shall be manufacturer's standard, nonstaining, nonpetroleum based, compatible with surface sealer finish coating.

2.1.7 Surface Sealer

Surface sealer shall be methyl methacrylate polymer acrylic emulsion, clear color.

PART 3 EXECUTION

3.1 FORMWORK ERECTION

Erect formwork in accordance with the detail drawings to ensure that the finished concrete members conform accurately to the indicated dimensions, lines, elevations, and finishes. Deflection shall not exceed 1/360th of each component span or distance between adjacent supports. Deflections and tolerance shall not be cumulative. Install form lines as necessary to provide the required finish. Forms shall be coated with form release agents before reinforcement is placed. Formwork shall conform to ACI 301 and ACI 347R .

3.2 CONCRETE FINISHES

Concrete finishes shall conform to the approved finishes. Finishing shall be accomplished at the time of concrete placement or immediately after formwork removal, as follows:

a. Smooth finish: (1) As cast using flat smooth nonporous forms. (2) As cast using fluted, sculptured, board finish or textured form liners.

b. Textured finish: (1) Textured form liners applied to inside of forms. (2) Distress finish by breaking off portion of face of raised portion of unit.

c. Exposed aggregate finish: (1) Finish obtained by applying even coat of retardant to face of form, removing forms after concrete hardens, and exposing coarse aggregate to a depth of [_____] inches by washing and brushing or lightly sandblasting away surface mortar. (2) Finish obtained by treating surface of unit with brushes which have been immersed in acid solution.

Cast-in-place concrete elements which are to have a finish other than the surface produced from standard formwork, shall be accomplished by using the following procedures: [_____].

3.3 JOINT SEALING

Joint sealing shall be as specified in Section 07 92 00 JOINT SEALANTS.

SECTION 03 33 00 Page 3

3.4 CLEANING

No sooner than 72 hours after joints are sealed, faces and other exposed surfaces of cast-in-place concrete shall be washed down, cleaned with soap and water applied with a soft bristle brush, then washed down again with clean water, or by other approved procedures. Discolorations which cannot be removed by these procedures, shall be considered defective work.

Cleaning work shall be done when temperature and humidity conditions are such that surfaces dry rapidly. Care shall be taken during cleaning operations to protect adjacent surfaces from damage.

3.5 SURFACE SEALING

After cleaning, exterior exposed architectural concrete surfaces indicated shall be given one coat of surface sealer, spray applied unless otherwise approved. Adjacent surfaces shall be protected to prevent damage from the surface sealer.

3.6 PROTECTION OF WORK

Work shall be protected against damage from subsequent operations.

3.7 DEFECTIVE WORK

Defective work shall be repaired or replaced, as directed, using approved procedures.

-- End of Section --

SECTION 03 33 00 Page 4

SECTION 07 54 23

THERMOPLASTIC POLYOLEFIN (TPO) ROOF MEMBRANE (Revised Amendment 8) 06/17

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN SOCIETY OF CIVIL ENGINEERS (ASCE)

ASCE 7 (2010; Errata 2011; Supp 1 2013) Minimum Design Loads for Buildings and Other Structures

ASTM INTERNATIONAL (ASTM)

ASTM D4637/D4637M (2015) EPDM Sheet Used in Single-Ply Roof Membrane

ASTM D6878 (2013) Standard Specification for Thermoplastic Polyolefin Based Sheet Roofing

ASTM E108 (2011) Fire Tests of Roof Coverings

FM GLOBAL (FM)

FM AS 4470 (1986; R 2013) Approval Standards for Class I Roof Covers

FM p7825 (2003) Approval Guide

FM p7825c (2003) Approval Guide Building Materials

NATIONAL ROOFING CONTRACTORS ASSOCIATION (NRCA)

NRCA 0405 (2001; 5th Ed) Roofing and Waterproofing Manual

UNDERWRITERS LABORATORIES (UL)

UL 790 (2004; Reprint Jul 2014) Standard Test Methods for Fire Tests of Roof Coverings

1.2 DESCRIPTION OF ROOF MEMBRANE SYSTEM

Fully adhered TPO roof membrane system applied over insulation recovery board substrate. Air Vapor barrier shall be incorporated in the roof assembly as specified in Section 07 22 00 ROOF AND DECK INSULATION.

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

SECTION 07 54 23 Page 1 submittals not having a "G" designation are for Contractor Quality Control approval. Submit the following in accordance with Section 01 33 00

SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Roof plan drawing depicting wind loads and boundaries of enhanced perimeter and corner attachments of roof system components, as applicable. The drawing shall reflect the project roof plan of each roof level and conditions indicated. Indicate slope amount and direction, location of crickets and key vertical elevation points; G

SD-03 Product Data

TPO Sheet; G

Seam Tape; G

Bonding Adhesive; G

Lap Splice Adhesive; G

Water Cutoff Mastic/Water Block; G

Lap Cleaner, Lap Sealant, and Edge Treatment; G

Flashing Tape; G

Flashing Accessories; G

Fasteners and Plates; G

Tape Seams / Lap Splices; G

Submit all data required by Section 07 22 00, "Roof and Deck Insulation," together with requirements of this section. Data shall include written acceptance by the roof membrane manufacturer of the insulation and other products and accessories to be provided. Products shall be as listed in the applicable wind uplift and fire rating classification listings, unless approved otherwise by the Contracting Officer.

SD-05 Design Data

Wind uplift resistance; G Wind uplift calculations; G

SD-07 Certificates

Qualification of Manufacturer

Certify that the manufacturer of the roof membrane meets requirements specified under paragraph entitled "Qualification of Manufacturer."

Qualification of Applicator

Certify that the applicator meets requirements specified under

SECTION 07 54 23 Page 2 paragraph entitled "Qualification of Applicator."

Fire Resistance classification; G

Submit the roof system assembly fire rating classification listings.

SD-11 Closeout Submittals

Warranty; G

15 year "No Dollar Limit" warranty for labor and material 20 year warranty for 70% PVDF coating

Information Card; G Instructions to Government Personnel; G

Include copies of Material Safety Data Sheets for maintenance/repair materials.

1.4 QUALITY ASSURANCE

1.4.1 Qualification of Manufacturer

TPO sheet roofing membrane manufacturer shall have at least five (5) years' experience in manufacturing TPO roofing products.

1.4.2 Qualification of Applicator

Roofing system applicator shall be approved, authorized, or licensed in writing by the roof membrane manufacturer and shall have a minimum of three (3) years' experience as an approved, authorized, or licensed applicator with that manufacturer and be approved at a level capable of providing the specified warranty. The applicator shall supply the names, locations and client contact information of five (5) projects of similar size and scope that the applicator has constructed using the manufacturer's roofing products submitted for this project within the previous three years.

1.4.3 Fire Resistance

Complete roof covering assembly shall:

a. Be Class A rated in accordance with ASTM E108 , FM AS 4470 , or UL 790 ;

and

b. FM or UL approved components of the roof covering assembly shall bear the appropriate FM or UL label.

1.4.4 Wind Uplift Resistance

Complete roof covering assembly, including insulation, shall meet FM 1-90 in accordance with FM p7825 capable of withstanding an uplift pressure of 90 lbs/sqft. Non-rated systems shall not be installed. Provide wind load calculations and submit engineering calculations and substantiating data to validate wind resistance of any non-rated roof system. Wind uplift calculations shall be based on a design wind speed of 120 mpr in accordance with ASCE 7.

SECTION 07 54 23 Page 3

1.4.5 Preroofing Conference

After approval of submittals and before performing roofing and insulation system installation work, hold a preroofing conference to review the following:

a. Drawings, specifications and submittals related to the roof work;

b. Roof system components installation;

c. Procedure for the roof manufacturer's technical representative's onsite inspection and acceptance of the roofing substrate, the name of the manufacturer's technical representatives, the frequency of the onsite visits, distribution of copies of the inspection reports from the manufacturer's technical representative;

d. Contractor's plan for coordination of the work of the various trades involved in providing the roofing system and other components secured to the roofing; and

e. Quality control plan for the roof system installation;

f. Safety requirements.

Preroofing conference scheduling shall be coordinated with the Contracting Officer. The conference shall be attended by the Contractor, the Contracting Officer's designated personnel, personnel directly responsible for the installation of roofing, flashing and sheet metal work, mechanical and electrical work, other trades interfacing with the roof work, and representative of the roofing materials manufacturer. Before beginning roofing work, provide a copy of meeting notes and action items to all attending parties. Note action items requiring resolution prior to start of roof work.

1.5 SUSTAINABLE DESIGN REQUIREMENTS

1.5.1 Final Sustainability Notebook Submittal

Refer to Section 01 33 29 SUSTAINABILITY REPORTING for federal sustainability product and documentation requirements.

1.5.2 LEED Documentation Notebook

Refer to Section 01 33 29 SUSTAINABILITY REPORTING for additional contract compliance requirements, including but not limited to, performance and submittal requirements that may apply to any product herein specified.

1.6 DELIVERY, STORAGE, AND HANDLING

1.6.1 Delivery

Deliver materials in their original, unopened containers or wrappings with labels intact and legible. Where materials are covered by a referenced specification number, the labels shall bear the specification number, type, class, and shelf life expiration date where applicable. Deliver materials in sufficient quantity to allow continuity of work.

SECTION 07 54 23 Page 4

1.6.2 Storage

Store and protect materials from damage and weather in accordance with manufacturer's instructions, except as specified otherwise. Keep materials clean and dry. Store and maintain adhesives, sealants, primers and other liquid materials above 60 degrees F. Insulated hot boxes or other enclosed warming devices shall be required in cold weather. Mark and remove damaged materials from the site. Use pallets to support and canvas tarpaulins to completely cover material materials stored outdoors.

Do not use polyethylene as a covering. Locate materials temporarily stored on the roof in approved areas, and distribute the load to stay within the live load limits of the roof construction. Remove unused materials from the roof at the end of each day's work.

1.6.3 Handling

Prevent damage to edges and ends of roll materials. Damaged materials shall not be installed in the work. Select and operate material handling equipment so as not to damage materials or applied roofing. Do not use materials contaminated by exposure or moisture. Remove contaminated materials from the site. When hazardous materials are involved, adhere to the special precautions of the manufacturer. Adhesives may contain petroleum distillates and may be extremely flammable; prevent personnel from breathing vapors, and do not use near sparks or open flame.

1.7 ENVIRONMENTAL REQUIREMENTS

Do not install TPO sheet roofing during high winds or inclement weather, or when there is ice, frost, moisture, or visible dampness on the substrate surface, or when condensation develops on surfaces during application. Unless recommended otherwise by the TPO sheet manufacturer and approved by the Contracting Officer, do not install TPO sheet when air temperature is below 40 degrees F or within 5 degrees F of the dewpoint.

Follow manufacturer's printed instructions for installation during cold weather conditions.

1.8 SEQUENCING

Coordinate the work with other trades to ensure that components which are to be secured to or stripped into the roofing system are available and that permanent flashing and counterflashing are installed as the work progresses. Ensure temporary protection measures are in place to preclude moisture intrusion or damage to installed materials. Application of roofing shall immediately follow application of insulation as a continuous operation. Roofing operations shall be coordinated with insulation work so that all roof insulation applied each day is covered with roof membrane installation the same day.

1.9 WARRANTY

Provide roof system material and workmanship warranties meeting specified requirements. Revision or amendment to standard membrane manufacturer warranty shall be provided as required to comply with the specified requirements.

1.9.1 Roof Membrane Manufacturer Warranty

Furnish the roof membrane manufacturer's 15-year no dollar limit roof system materials and installation workmanship warranty, including

SECTION 07 54 23 Page 5 flashing, insulation, and accessories necessary for a watertight roof system construction. The warranty shall run directly to the Government and commence at time of Government's acceptance of the roof work. The warranty shall state that:

a. If within the warranty period the roof system, as installed for its intended use in the normal climatic and environmental conditions of the facility, becomes non-watertight, shows evidence of moisture intrusion within the assembly, splits, tears, cracks, delaminates, separates at the seams, shrinks to the point of bridging or tenting membrane at transitions, or shows evidence of excessive weathering due to defective materials or installation workmanship, the repair or replacement of the defective and damaged materials of the roof system assembly and correction of defective workmanship shall be the responsibility of the roof membrane manufacturer. All costs associated with the repair or replacement work shall be the responsibility of the roof membrane manufacturer.

b. When the manufacturer or his approved applicator fail to perform the repairs within 72 hours of notification, emergency temporary repairs performed by others shall not void the warranty.

c. Warranty to include coverage for peak gusts of wind to 120 mpr at 10 m above grade.

d. 20 year warranty on 70% PVDF (Kynar 5oo) coatings on edge and metal copings.

1.9.2 Roofing System Installer Warranty

The roof system installer shall warrant for a period of not less than two years that the roof system, as installed, is free from defects in installation workmanship, to include the roof membrane, flashing, insulation, accessories, attachments, and sheet metal installation integral to a complete watertight roof system assembly. The warranty shall run directly to the Government. Correction of defective workmanship and replacement of damaged or affected materials shall be the responsibility of the roof system installer. All costs associated with the repair or replacement work shall be the responsibility of the installer.

1.9.3 Continuance of Warranty

Repair or replacement work that becomes necessary within the warranty period shall be approved, as required, and accomplished in a manner so as to restore the integrity of the roof system assembly and validity of the roof membrane manufacturer warranty for the remainder of the manufacturer warranty period.

1.10 CONFORMANCE AND COMPATIBILITY

The entire roofing and flashing system shall be in accordance with specified and indicated requirements, including fire and wind resistance requirements. Work not specifically addressed and any deviation from specified requirements shall be in general accordance with recommendations of the NRCA 0405, membrane manufacturer published recommendations and details, and compatible with surrounding components and construction. Any deviation from specified or indicated requirements shall be submitted to the Contracting Officer for approval prior to installation.

SECTION 07 54 23 Page 6

PART 2 PRODUCTS

2.1 MATERIALS

Coordinate with other specification sections related to the roof work.

Furnish a combination of specified materials that comprise a roof system acceptable to the roof membrane manufacturer and meeting specified requirements. Materials provided shall be free of defects and suitable for the service and climatic conditions of the installation.

2.1.1 TPO Sheet

Thermoplastic Polyolefin (TPO), ASTM D6878, polyester fabric reinforced 0.060-inch nominal thickness for fully adhered application. Minimum thickness shall not be less than minus 10 percent of the specified thickness value. TPO membrane thickness specified is exclusive of backing material on the TPO membrane. Width and length of sheet shall be as recommended by the manufacturer.

a. Color: White - Solar Reflectance (Albedo x 100): Minimum 80.

2.1.2 Seam Tape

Seam tape shall be as supplied by the roof membrane manufacturer and recommended by the manufacturer's printed data for forming watertight bond of TPO sheet materials to each other for the application specified and conditions encountered. 6-inch wide tape is required for seam seals along lines of mechanical attachment of membrane.

2.1.3 Lap Splice Adhesive

Low volatile organic compound (VOC) synthetic rubber adhesive as supplied by roof membrane manufacturer and recommended by the manufacturer's printed data for forming watertight bond of TPO sheet membrane materials to each other.

2.1.4 Bonding Adhesive

Adhesive as supplied by roof membrane manufacturer and recommended by the manufacturer's printed data for bonding TPO membrane materials to insulation, wood, metal, concrete or other substrate materials. Bonding adhesive shall not be used to bond membrane materials to each other.

2.1.5 Lap Cleaner, Lap Sealant, and Edge Treatment

As supplied by the roof membrane manufacturer and recommended by the manufacturer's printed data.

2.1.6 Water Cutoff Mastic/Water Block

As supplied by the roof membrane manufacturer and recommended by the manufacturer's printed data.

2.1.7 Membrane Flashing and Flashing Accessories

Membrane flashing, including self-adhering membrane flashing, perimeter flashing, flashing around roof penetrations, and prefabricated pipe seals, shall be TPO, as recommended by the roof membrane manufacturer.

SECTION 07 54 23 Page 7

2.1.7.1 Flashing Tape

TPO-backed synthetic rubber tape, minimum 6-inch wide as supplied by the roof membrane manufacturer and recommended by the manufacturer's printed data.

2.1.8 Membrane Fasteners and Plates

Coated, corrosion-resistant fasteners as recommended by the roof membrane manufacturer and meeting the requirements of FM AS 4470 and FM p7825c for Class I roof deck construction and the wind uplift resistance specified.

As supplied and warranted for the substrate type(s) by TPO sheet manufacturer and recommended by TPO sheet manufacturer's printed data.

2.1.8.1 Stress Plates for Fasteners

Flat corrosion-resistant round stress plates as recommended by the roof membrane manufacturer's printed instructions and meeting the requirements of FM AS 4470 ; not less than 2 inches in diameter. Discs shall be formed to prevent dishing or cupping.

2.1.8.2 Auxiliary Fasteners

Corrosion resistance screws, nails, or anchors suitable for intended attachment purpose and as recommended by the roof membrane manufacturer.

PRE-MANUFACTURED ACCESSORIES

Pre-manufactured accessories shall be manufacturer's standard for intended purpose, compatible with the membrane roof system and approved for use by the roof membrane manufacturer.

2.1.9 Pre-fabricated Curbs

Curbs shall be as recommended by roof manufacturer.

2.1.10 Precast Concrete Paver Block Walkways

2.1.10.1 Precast Concrete Paver Block

Precast concrete blocks, 24 inch by 24 inch, without sharp edges and projections, and weighing no more than 80 pounds each.

2.1.11 Roof Insulation Below TPO Sheet

Insulation system and facer material shall be compatible with membrane application specified and as approved by the roof membrane manufacturer and as specified in Section 07 22 00 ROOF AND DECK INSULATION.

2.1.12 Wood Products

As specified in Section 06 10 00 ROUGH CARPENTRY, except that fire retardant treated materials shall not be in contact with TPO membrane or TPO accessory products, unless approved by the membrane manufacturer and the Contracting Officer.

SECTION 07 54 23 Page 8

2.1.13 Membrane Liner

TPO membrane liner conforming to ASTM D4637/D4637M , or other waterproof membrane liner material as approved by the roof membrane manufacturer and the Contracting Officer.

PART 3 EXECUTION

3.1 EXAMINATION

Ensure that the following conditions exist prior to application of the roofing materials:

a. Drains, curbs, control joints, expansion joints, perimeter walls, roof penetrating components, and equipment supports are in place.

b. Surfaces are rigid, clean, dry, smooth, and free from cracks, holes, and sharp changes in elevation.

c. The plane of the substrate does not vary more than 0.24-inch within an area 10 feet by 10 feet when checked with a 10 foot straight edge placed anywhere on the substrate.

d. Insulation is tapered to provide positive drainage.

e. Walls and vertical surfaces are constructed to receive counterflashing, and will permit mechanical fastening of the base flashing materials.

f. Pressure-preservative treated wood nailers are fastened in place at eaves, gable ends, openings, and intersections with vertical surfaces for securing of membrane, edging strips, attachment flanges of sheet metal, and roof fixtures.

h. Avoid contact of TPO materials with fire retardant treated wood, except as approved by the roof membrane manufacturer and Contracting Officer.

i. Cants are securely fastened in place in the angles formed by walls and other vertical surfaces. The angle of the cant is 45 degrees and the height of the vertical leg is not less than 3.5 inch.

j. Insulation boards are installed smoothly and evenly, and are not broken, cracked, or curled. There are no gaps in insulation board joints exceeding 0.24-inch in width. Insulation is attached as specified in Section 07 22 00 ROOF AND DECK INSULATION. Insulation is being roofed over on the same day the insulation is installed.

3.2 APPLICATION

Apply entire TPO sheet utilizing fully adhered application method. Apply roofing materials as specified herein unless approved otherwise by the Contracting Officer.

3.2.1 Special Precautions

a. Do not dilute coatings or sealants unless specifically recommended by the materials manufacturer's printed application instructions. Do not thin liquid materials with cleaners used for cleaning TPO sheet.

SECTION 07 54 23 Page 9

b. Keep liquids in airtight containers, and keep containers closed except when removing materials.

c. Use liquid components, including adhesives, within their shelf life period. Store adhesives at 60 to 80 degrees F prior to use. Avoid excessive adhesive application and adhesive spills, as they can be destructive to some elastomeric sheets and insulations; follow adhesive manufacturer's printed application instructions. Mix and use liquid components in accordance with label directions and manufacturer's printed instructions.

d. Provide clean, dry cloths or pads for applying membrane cleaners and cleaning of membrane.

e. Do not use heat guns or open flame to expedite drying of adhesives or primers.

f. Require workmen and others who walk on the membrane to wear clean, soft-soled shoes to avoid damage to roofing materials.

g. Do not use equipment with sharp edges which could puncture the TPO sheet.

h. Shut down air intakes and any related mechanical systems and seal open vents and air intakes when applying solvent-based materials in the area of the opening or intake. Coordinate shutdowns with the Contracting Officer.

3.2.2 TPO Sheet Roofing

Roof membrane sheet shall be watertight and free of contaminants and defects that might affect serviceability. Edges of sheet shall be uniform, straight, and flat. Unroll TPO sheet roofing in position without stretching membrane. Inspect for holes. Remove sections of TPO sheet roofing that are damaged. Allow sheets to relax minimum 30 minutes before seaming. Lap sheets as specified, to shed water, and as recommended by the roof membrane manufacturer's published installation instructions for the application required but not less than 3 inches in any case.

3.2.3 Application Method

3.2.3.1 Fully Adhered Membrane Application

Layout membrane and side lap adjoining sheets in accordance with membrane manufacturer's printed installation instructions. Allow for sufficient membrane to form proper membrane terminations. Remove dusting agents and dirt from membrane and substrate areas where bonding adhesives are to be applied. Apply specified adhesive evenly and continuously to substrate and underside of sheets at rates recommended by the roof membrane manufacturer's printed application instructions. When adhesive is spray applied, roll with a paint roller to ensure proper contact and coverage.

Do not apply bonding adhesive to surfaces of membrane in seam or lap areas. Allow adhesive to flash off or dry to consistency prescribed by manufacturer before adhering sheets to the substrate. Roll each sheet into adhesive slowly and evenly to avoid wrinkles; broom or roll the membrane to remove air pockets and fishmouths and to ensure full, continuous bonding of sheet to substrate. Form field lap splices or seams as specified. Check all seams and ensure full lap seal. Apply lap

SECTION 07 54 23 Page 10 sealant to all adhesive formed seams and all cut edges of reinforced membrane materials.

3.2.4 Tape Seams / Lap Splices

Field form seams, or lap splices, with seam tape in accordance with membrane manufacturer's printed instructions and as specified. Clean and prime mating surfaces in the seam area. After primer has dried or set in accordance with membrane manufacturer's instructions, apply seam tape to bottom membrane and roll with a 3-inch to 4-inch wide smooth silicone or steel hand roller, or other manufacturer approved rolling device, to ensure full contact and adhesion of tape to bottom membrane. Tape end laps shall be minimum 1 inch. Roll top membrane into position to check for proper overlap and alignment. Remove release paper from top of seam tape and form seam splice. Ensure top membrane contact with seam tape as release paper is removed. Roll the closed seam with a smooth silicone or steel hand roller, rolling first across the width of the seam then along the entire length, being careful not to damage the membrane. Apply minimum 9 inch long strip of membrane-backed flashing tape over T-intersections of roof membrane. Roll tape to ensure full adhesion and seal over T-joint.

3.2.5 Perimeter Attachment

Adhesive bond or mechanically secure roof membrane sheet at roof perimeter in a manner to comply with wind resistance requirements and in accordance with membrane manufacturer's printed application instructions. When adhesively bonding a mechanically fastened system in perimeter areas, the perimeter boundary of the adhesive bond shall be the same as the boundary required for additional perimeter mechanical fastening to meet wind resistance requirements.

3.2.6 Securement at Base Tie-In Conditions

Mechanically fasten the roof membrane at penetrations, at base of curbs and walls, and at all locations where the membrane turns and angle greater than 4 degrees (1:12). Space fasteners a maximum of 12 inches on center, except where more frequent attachment is required to meet specified wind resistance or where recommended by the roof membrane manufacturer. Flash over fasteners with a fully adhered layer of material as recommended by the roof membrane manufacturer's printed data.

3.2.7 Membrane Flashing

Install flashing and flashing accessories as the roof membrane is installed. Apply flashing to cleaned surfaces and as recommended by the roof membrane manufacturer and as specified. Utilize cured TPO membrane flashing and prefabricated accessory flashings to the maximum extent recommended by the roof membrane manufacturer. Uncured flashing material shall be limited to reinforcing inside and outside corners and angle changes in plane of membrane, and to flashing scuppers, pourable sealer pockets, and other formed penetrations or unusually shaped conditions as recommended by the roof membrane manufacturer where the use of cured material is impractical. Extend base flashing not less than 8 inches above roofing surface and as necessary to provide for seaming overlap on roof membrane as recommended by the roof membrane manufacturer. Seal flashing membrane for a minimum of 3 inches on each side of fastening device used to anchor roof membrane to nailers. Completely adhere flashing sheets in place. Seam flashing membrane in the same manner as roof membrane, except as otherwise recommended by the membrane

SECTION 07 54 23 Page 11 manufacturer's printed instructions and approved by the Contracting Officer. Reinforce all corners and angle transitions by applying uncured membrane to the area in accordance with roof membrane manufacturer recommendations. Mechanically fasten top edge of base flashing with manufacturer recommended termination bar fastened at maximum 4 inches on center. Sheet metal flashing shall be installed over the termination bar in the completed work. Mechanically fasten top edge of base flashing for all other terminations in a manner recommended by the roof membrane manufacturer. Apply membrane liner over top of exposed nailers and blocking and to overlap top edge of base flashing installation at curbs, parapet walls, expansion joints and as otherwise indicated to serve as waterproof lining under sheet metal flashing components. Metal flashing are specified under Section 07 60 00, "Flashing and Sheet Metal."

3.2.7.1 Flashing at Roof Drain

Roof drains are specified in Section 22 00 00 PLUMBING, GENERAL PURPOSE.

Flashing for roof drains, are specified in Section 07 60 00 FLASHING AND SHEET METAL. Provide a tapered insulation sump into the drain bowl area.

Tapered slope shall not exceed 18 degrees for unreinforced membrane and 5 degrees for reinforced membrane. Tapered insulation shall have surface suitable for adhering membrane in the drain sump area. Avoid field seams running through or within 24 inches of roof drain, or as otherwise recommended by the roof membrane manufacturer. Adhere the membrane to the tapered in the drain sump area. Apply water block mastic and extend membrane sheets over edge of drain bowl opening at the roof drain deck flange in accordance with membrane manufacturer's printed application instructions. Membrane shall be free of wrinkles and folds in the drain area. Securely clamp membrane in the flashing clamping ring. Ensure membrane is cut to within 0.8-inch of inside rim of clamping ring to maintain drainage capacity. Do not cut back to bolt holes.

3.2.8 Pre-fabricated Curbs

Prefabricated curbs shall be securely anchored to nailer or other base substrate and flashed with TPO membrane flashing materials.

3.2.8.1 Set-On Accessories

Where pipe or conduit blocking, supports and similar roof accessories, or isolated paver block, are set on the membrane, adhere reinforced membrane or walkpad material, as recommended by the roof membrane manufacturer, to bottom of accessories prior to setting on roofing membrane. Specific method of installing set-on accessories must permit normal movement due to expansion, contraction, vibration, and similar occurrences without damaging roofing membrane. Do not mechanically secure set-on accessories through roofing membrane into roof deck substrate.

3.2.9 Roof Walkpads

Install walkpads at roof access points and where otherwise indicated for traffic areas and for access to mechanical equipment, in accordance with the roof membrane manufacturer's printed instructions. Provide minimum 6-inch separation between adjacent walkpads to accommodate drainage.

3.2.10 Isolated Paver Blocks

Install paver blocks where indicated and as necessary to support surface bearing items traversing the roof area. Paver block shall be set on a

SECTION 07 54 23 Page 12 layer of reinforced membrane or walkpad applied over the completed roof membrane.

3.2.11 Correction of Deficiencies

Where any form of deficiency is found, additional measures shall be taken as deemed necessary by the Contracting Officer to determine the extent of the deficiency and corrective actions shall be as directed by the Contracting Officer.

3.2.12 Clean Up

Remove debris, scraps, containers and other rubbish and trash resulting from installation of the roofing system from job site each day.

3.3 PROTECTION OF APPLIED ROOFING

At the end of the day's work and when precipitation is imminent, protect applied membrane roofing system from water intrusion.

3.3.1 Temporary Flashing for Permanent Roofing

Provide temporary flashing at drains, curbs, walls and other penetrations and terminations of roofing sheets until permanent flashings can be applied. Remove temporary flashing before applying permanent flashing.

3.3.2 Temporary Walkways, Runways, and Platforms

Do not permit storing, walking, wheeling, and trucking directly on applied roofing materials. Provide temporary walkways, runways, and platforms of smooth clean boards, mats or planks as necessary to avoid damage to installed roofing materials, and to distribute weight to conform to live load limits of roof construction. Use rubber-tired equipment for roofing work.

3.4 FIELD QUALITY CONTROL

3.4.1 Construction Monitoring

During progress of the roof work, Contractor shall make visual inspections as necessary to ensure compliance with specified parameters.

Additionally, verify the following:

a. Equipment is in working order. Metering devices are accurate.

b. Materials are not installed in adverse weather conditions.

c. Substrates are in acceptable condition, in compliance with specification, prior to application of subsequent materials.

1. Nailers and blocking are provided where and as needed.

2. Insulation substrate is smooth, properly secured to its substrate, and without excessive gaps prior to membrane application.

3. The proper number, type, and spacing of fasteners are installed.

4. Materials comply with the specified requirements.

SECTION 07 54 23 Page 13

5. All materials are properly stored, handled and protected from moisture or other damages. Liquid components are properly mixed prior to application.

6. Membrane is allowed to relax prior to seaming. Adhesives are applied uniformly to both mating surfaces and checked for proper set prior to bonding mating materials. Mechanical attachments are spaced as required, including additional fastening of membrane in corner and perimeter areas as required.

7. Membrane is properly overlapped.

8. Membrane seaming is as specified and seams are hand rolled to ensure full adhesion and bond width. In-seam sealant is applied when adhesive seams are used in the field of the roof. All seams are checked at the end of each work day.

9. Applied membrane is inspected and repaired as necessary prior to ballast installation.

10. Membrane is fully adhered without ridges, wrinkles, kinks, fishmouths.

11. Installer adheres to specified and detailed application parameters.

12. Associated flashings and sheet metal are installed in a timely manner in accord with the specified requirements.

13. Ballast is within the specified weight range.

14. Temporary protection measures are in place at the end of each work shift.

3.4.2 Roof Drain Test

After completing roofing but prior to Government acceptance, perform the following test for watertightness. Plug roof drains and fill with water to edge of drain sump for 8 hours. Do not plug secondary overflow drains at the same time as adjacent primary drain. To ensure some drainage from roof, do not test all drains at same time. Measure water at beginning and end of the test period. When precipitation occurs during test period, repeat test. When water level falls, remove water, thoroughly dry, and inspect installation; repair or replace roofing at drain to provide for a properly installed watertight flashing seal. Repeat test until there is no water leakage.

3.5 INSTRUCTIONS TO GOVERNMENT PERSONNEL

Furnish written and verbal instructions on proper maintenance procedures to designated Government personnel. Furnish instructions by a competent representative of the roof membrane manufacturer and include a minimum of 4 hours on maintenance and emergency repair of the membrane. Include a demonstration of membrane repair, and give sources of required special tools. Furnish information on safety requirements during maintenance and emergency repair operations.

3.6 INFORMATION CARD

For each roof, furnish a typewritten information card for facility records

SECTION 07 54 23 Page 14 and a card laminated in plastic and framed for interior display at roof access point, or a photoengraved 0.04-inch thick aluminum card for exterior display. Card shall be 8.5 inches by 11 inches minimum.

Information card shall identify facility name and number; location;

contract number; approximate roof area; detailed roof system description, including deck type, membrane, number of plies, method of application, manufacturer, insulation and cover board system and thickness; presence of tapered insulation for primary drainage, presence of vapor retarder; date of completion; installing contractor identification and contact information; membrane manufacturer warranty expiration, warranty reference number, and contact information.

This is the start of the file's text. The full file is on GovTribe.

File details come from the government source that posted it. Updated .