AM_5_Specifications_25_Jan_18.pdf

Unaccompanied Officers Quarters, Camp Arifjan, Kuwait 460809

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 11 00

SUMMARY OF WORK REVISED BY AMENDMENT 0005

PART 1 GENERAL

PART 2 PRODUCTS

PART 3 EXECUTION

-- End of Section Table of Contents --

SECTION 01 11 00 Page 1

SECTION 01 11 00

SUMMARY OF WORK

REVISED BY AMENDMENT 0005

PART 1 GENERAL

1. PROJECT DESCRIPTION

The purpose of this contract is to provide the necessary construction improvements for the Kuwait Ministry of Defense (KMOD) in support of the Area Support Group (ASG) mission in Kuwait. Project site is located on Camp Arifjan, Kuwait. The scope of work is described below.

The base contract Scope of Work includes the construction of three (3) dormitory buildings. Each building will be three (3) stories and will house 75 unaccompanied field grade officers. The three (3) barracks will house a total of 225 personnel. Each building includes 38 bedroom suites.

Each suite has two (2) private sleeping rooms with a shared bathroom and kitchenette. Bedrooms will be wired to include internet and cable TV connections.

Supporting facilities and infrastructure include electric, water and sewage distribution systems. Supporting facilities also include mechanical systems, communication information systems, fire distribution and fire suppression systems, roads, storm drainage and parking as indicated on the contract drawings. Dormitories will be constructed using cast-in-place concrete frames with concrete masonry infill walls.

The project will be delivered using a design-bid-build approach. Design documents including plans and specifications are provided herein.

The fire protection aspects of this contract are written as performance based specifications requiring a Fire Protection Specialist (FPS). Early engagement of this individual(s) will be crucial in meeting the completion date. The FPS must be a fire protection engineer who can oversee all aspects of fire protection. The FPS is also required to oversee the installation of the systems through final acceptance testing.

A fire hydrant flow test is required for this project in accordance with Section 21 13 13.00 10 WET PIPE SPRINKLER SYSTEM, FIRE PROTECTION.

Base Life Support Area is not available, the Contractor is responsible for the sustainment of their workforce, and the Contractor shall plan for daily commutes to access worksites. The Contractor will be allowed to use dining facilities at their own expense. The Contractor shall perform a pre-award site investigation with the Department of Public Works (DPW) and Fire Department representatives to evaluate: travel routes, site conditions, utilities, and identify any other incidental work to make the requirements fully functional in order to provide the Government with a complete construction and warranty for this project. All work shall be accomplished in place in accordance with the contract specifications, drawings, and as directed by the Contracting Officer.

All work under this contract includes all labor, materials, equipment, tools, transportation, and necessary supplies to construct the features of work described in this document. The requirements of this contract include

SECTION 01 11 00 Page 2 that the Contractor must manage the work in a professional manner, perform personnel and support functions to maintain a sufficient work force, and provide the submittals required. Materials and supplies shall be new and standard products regularly used for commercial/institutional construction of similar size, style, and complexity in Kuwait. Equipment to be provided by the Contractor shall be of commercial/institutional quality.

Construction shall comply with the specifications and requirements contained in the contract documents. The design and technical criteria contained and cited in the contract documents establish minimum standards for construction quality.

The Contractor shall remove/relocate existing structures, pavement, utilities, cables, debris, etc. that may occupy the site, as required for construction while maintaining service to existing facilities not affected by this project.

In addition to the U.S. Army Corps of Engineers Design Review and Approvals, the Contractor shall be responsible to obtain Construction Permit(s) as required by the Host Nation laws.

1.1 BID OPTIONS

Options are included in this contract and may be exercised (awarded) if approved by the Government and within funds available. The options in this contract are as follows and as shown on the contract drawings and specifications:

1. Construct one (1) three (3) story dormitory building

Bid option #1 to construct one additional three-story Officer Quarters Barracks. If awarded, the total build out would consist of four (4) Officer Quarters Barracks which will house a total of (300) personal.

2. Construct Asphalt Parking and Road

Bid option #2 to pave vehicle parking lot and road.

1.2 POTENTIAL ON-GOING CONSTRUCTION

In addition to work being executed in accordance with the contract documents described in this package, all work must be approved by the Contracting Officer and coordinated through the USACE Resident Office in Kuwait. It will be imperative that the Contractor take into consideration the potential to have other on-going construction work and coordinate efforts under this contract in conjunction with other work to avoid schedule impacts and other conflicts.

1.3 PERIOD OF PERFORMANCE

The project shall be completed within the time stipulated in Section 00 72 0000700 , Contract Clause 52.211-10, COMMENCEMENT, and PROSECUTION AND COMPLETION OF WORK including any OPTION items awarded. The construction shall be sequenced in accordance with Section 00800, Contract Clause

PROJECT SCHEDULING AND SEQUENCE OF CONSTRUCTION.

If items on the critical path schedule are delayed, Contractor must provide a recovery schedule to the Contracting Officer for approval and be able to increase manpower to complete mission essential facilities as

SECTION 01 11 00 Page 3 listed below and in the project specifications.

PART 2 PRODUCTS

Not used.

PART 3 EXECUTION

Not used.

-- End of Section --

SECTION 01 11 00 Page 4

Lab Name Country Address Web Site Expires P.O. Box 21073 Safat 13071 Kuwait Sabhan Industrial Area

Block 6, Plot 57, Street 61

State of Kuwait P.O. Box 26577 Manama Kingdom of Bahrain Flat 9, Bldg 2189 Road 115 Hidd Kingdom of Bahrain P.O. Box 1197, P.C. 130 Muscat Oman P.O. Box 869, P.C. 130 Muscat, Oman St 11, Gate 103 Salwa Industrial Area Doha, Qatar St 41, Gate 145 Industrial Area P.O. Box 40462 Doha, Qatar P.O. Box 23650 Doha, Qatar St 43, Gate 51 Salwa Industrial Area Doha, Qatar Junction of St 2 and Al Kassarat St Salwa Industrial Area P.O. Box 4024 Doha, Qatar St 13, Gate 172 Industrial Area P.O. Box 22159 Doha, Qatar St 50, Gate 26 Industrial Area P.O. Box 40278

INCO-Labs Kuwait www.inco-lab.com 11-Nov-17

Gulf Inspection International Co.

Kuwait www.giico.net 14-Jun-18

Al Hoty Analytical Services W.L.L.

Bahrain www.alhotybahrain.com 13-Jan-18

Qatar Engineering Laboratories

Bahrain www.qelonweb.com 14-Dec-17

Lonestar Alpha LLC Oman www.lonestaralpha.com 13-Mar-18

Exova Oman www.exova.com 5-Apr-18

Technical Laboratories Qatar www.techlabqatar.com 6-Apr-18

Doha Technical Laboratories

Qatar www.dtl.com.qa 6-Apr-18

Exova Qatar www.exova.com 6-Apr-18

Qatar Industrial Laboratories

Qatar www.qilqatar.com 6-Apr-18

Gulf Laboratories Co. WLL Qatar www.mannai.com 18-May-18

Advanced Construction Technology Services

Qatar www.acts-int.com 27-Jun-18

Qatar Engineering Laboratories W.L.L.

Qatar www.qelqatar.com 16-May-18

SECTION 01 45 00.00 10 - ATTACHMENT

W912ER-18-R-0009 Amendment 0005 http://www.giico.net/

Doha, Qatar St 18, Gate 56 Industrial Area Doha, Qatar P.O. Box 14212 Doha, Qatar P.O. Box 1438 Amman Al Bayader P.O. Box 140945-11814 Amman Al Hurreyah St.

Al Moqabalin Amman

QGEC Qatar www.qgec.net 27-Apr-18

CTL Group Qatar www.ctlgroupqatar.com 11-Jun-17

Royal Scientific Society Jordan www.rss.jo 7-Dec-18

Engineering Axis for Studies

Jordan 7-Deceng_axis@hotmail.com

7-Decatecgtmt@gmail.comJordanCorinthi http://www.rss.jo/

DIVISION 07 - THERMAL AND MOISTURE PROTECTION

SECTION 07 52 00

MODIFIED BITUMINOUS MEMBRANE ROOFING REVISED BY AMENDMENT 0005

PART 1 GENERAL

1.1 REFERENCES

1.2 DESCRIPTION OF ROOF MEMBRANE SYSTEMS

1.3 SUBMITTALS

1.4 QUALITY ASSURANCE

1.4.1 Qualification of Manufacturer

1.4.2 Qualification of Applicator

1.4.3 Qualification of Engineer of Record

1.4.4 Fire Resistance

1.4.5 Wind Uplift Resistance

1.4.6 Preroofing Conference

1.5 DELIVERY, STORAGE, AND HANDLING

1.5.1 Delivery

1.5.2 Storage

1.5.3 Handling

1.6 ENVIRONMENTAL REQUIREMENTS

1.7 TORCH APPLIED (HEAT WELD) MODIFIED BITUMEN MEMBRANE SAFETY

1.7.1 Property Protection

1.7.2 Fire Watch

1.7.3 Open Flame Application (Torch) Equipment and Personnel Safety

1.7.4 Wind Conditions

1.8 SEQUENCING

1.9 WARRANTY

1.9.1 Roof Membrane Manufacturer Warranty

1.9.2 Roofing System Installer Warranty

1.9.3 Continuance of Warranty

1.10 CONFORMANCE AND COMPATIBILITY

1.11 ELIMINATION, PREVENTION OF FALL HAZARDS

1.12 SUSTAINABILITY REPORTING

1.12.1 Recycled Materials

1.12.2 Local/Regional Materials

PART 2 PRODUCTS

2.1 MODIFIED BITUMEN SHEETS AND FIBERGLASS FELT MATERIALS

2.2 BASE FLASHING MEMBRANE

2.3 MEMBRANE SURFACING

2.4 PRIMER

2.5 MODIFIED BITUMEN ROOF CEMENT

2.6 CANT AND TAPERED EDGE STRIPS

2.7 FASTENERS AND PLATES

2.7.1 Masonry or Concrete Walls and Vertical Surfaces

2.7.2 Metal Plates

PART 3 EXECUTION

SECTION 07 52 00 Page 1

3.1 EXAMINATION

3.2 PREPARATION

3.2.1 Protection of Property

3.2.1.1 Protective Coverings

3.2.2 Equipment

3.2.2.1 Mechanical Application Devices

3.2.2.2 Electric-Heated Equipment

3.2.3 Heating of Asphalt

3.2.3.1 Temperature Limitations for Asphalt

3.2.4 Priming of Surfaces

3.2.4.1 Priming of Concrete and Masonry Surfaces

3.2.4.2 Priming of Metal Surfaces

3.2.5 Membrane Preparation

3.2.6 Substrate Preparation

3.3 APPLICATION

3.3.1 Phased Membrane Construction

3.3.2 Temporary Roofing and Flashing

3.3.2.1 Removal

3.3.3 Application Method

3.3.3.1 Torch Applied Modified Bitumen Membrane

3.3.4 Ventilating Base Sheets

3.3.5 Fiberglass Felt Base Sheet

3.3.6 Modified Bitumen Membrane Application

3.3.6.1 Cap Sheet Installation

3.3.7 Membrane Flashing

3.3.7.1 Membrane Strip Flashing

3.3.7.2 Membrane Flashing at Roof Scuppers

3.3.7.3 Pre-fabricated Curbs

3.3.7.4 Set-On Accessories

3.3.8 Clean Up

3.4 CORRECTION OF DEFICIENCIES

3.5 PROTECTION OF APPLIED ROOFING

3.6 FIELD QUALITY CONTROL

3.6.1 Test for Surface Dryness

3.6.2 Construction Monitoring

3.6.2.1 Manufacturer's Inspection

3.6.3 Samples of Roofing

3.7 INSTRUCTIONS TO GOVERNMENT PERSONNEL

3.8 INFORMATION CARD

-- End of Section Table of Contents --

SECTION 07 52 00 Page 2

SECTION 07 52 00

MODIFIED BITUMINOUS MEMBRANE ROOFING

REVISED BY AMENDMENT 0005

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

AMERICAN SOCIETY OF SAFETY ENGINEERS (ASSE/SAFE)

ASSE/SAFE A10.24 (2014) Roofing - Safety Requirements of Low-Sloped Roofs

ASPHALT ROOFING MANUFACTURER'S ASSOCIATION (ARMA)

ARMA 410BUR88 (2001) Manual of Roof Maintenance and Repair

ARMA PMBRG98 (1998) Quality Control Guideline for the Application of Polymer Modified Bitumen Roofing

ASTM INTERNATIONAL (ASTM)

ASTM C1289 (2016) Standard Specification for Faced Rigid Cellular Polyisocyanurate Thermal Insulation Board

ASTM D2170/D2170M (2010) Kinematic Viscosity of Asphalts (Bitumens)

ASTM D4073 (2006; R 2013) Standard Test Method for Tensile-Tear Strength of Bituminous Roofing Membranes

ASTM D41/D41M (2011) Asphalt Primer Used in Roofing, Dampproofing, and Waterproofing

ASTM D4263 (1983; R 2012) Indicating Moisture in Concrete by the Plastic Sheet Method

ASTM D4402/D4402M (2015) Viscosity Determination of Asphalt at Elevated Temperatures Using a Rotational Viscometer

SECTION 07 52 00 Page 3

ASTM D4586/D4586M (2007; E 2012; R 2012) Asphalt Roof Cement, Asbestos-Free

ASTM D4897/D4897M (2001; R 2009) Standard Specification for Asphalt-Coated Glass-Fiber Venting Base Sheet Used in Roofing

ASTM D5147/D5147M (2014) Standard Test Methods for Sampling and Testing Modified Bituminous Sheet Material

ASTM D6222/D6222M (2011) Atactic Polypropylene (ARP) Modified Bituminous Sheet Materials Using Polyester Reinforcements

ASTM D6223/D6223M (2002; E 2009; R 2009) Standard Specification for Atactic Polypropylene (ARP) Modified Bituminous Sheet Materials Using a Combination of Polyester and Glass Fiber Reinforcements

ASTM E108 (2011) Fire Tests of Roof Coverings

FM GLOBAL (FM)

FM 4470 (2010) Single-Ply, Polymer-Modified Bitumen Sheet, Built-up Roof (BUR), and Liquid Applied Roof Assemblies for Use in Class 1 and Noncombustible Roof Deck Construction

FM APP GUIDE (updated on-line) Approval Guide http://www.approvalguide.com/

INTERNATIONAL SAFETY EQUIPMENT ASSOCIATION (ISEA)

ANSI/ISEA Z87.1 (2015) Occupational and Educational Personal Eye and Face Protection Devices

MIDWEST ROOFING CONTRACTORS ASSOCIATION (MRCA)

CERTA (2003) NRCA/MRCA Certified Roofing Torch Applicator Program

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 241 (2013; Errata 2015) Standard for Safeguarding Construction,Alteration, and Demolition Operations

NFPA 58 (2014; TIA 13-1; TIA 13-2; Errata 13-1;

TIA 13-3; Errata 14-2) Liquefied Petroleum Gas Code

NATIONAL ROOFING CONTRACTORS ASSOCIATION (NRCA)

NRCA C3701 (2002) Repair Manual for Low Slope Membrane Roof Systems

SECTION 07 52 00 Page 4

NRCA Details (2003) NRCA Roof Perimeter Flashing Systems Construction Details for Class 1 Roof Construction

NRCA RoofMan (2011 thru 2014) The NRCA Roofing Manual

SHEET METAL AND AIR CONDITIONING CONTRACTORS' NATIONAL ASSOCIATION

(SMACNA)

SMACNA 1793 (2012) Architectural Sheet Metal Manual, 7th Edition

SINGLE PLY ROOFING INDUSTRY (SPRI)

ANSI/SPRI/FM 4435/ES-1 (2011) Wind Design Standard for Edge Systems Used with Low Slope Roofing Systems

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

29 CFR 1910 Occupational Safety and Health Standards

29 CFR 1910.12 Construction Work

29 CFR 1926 Safety and Health Regulations for Construction

29 CFR 1926.16 Rules of Construction

UNDERWRITERS LABORATORIES (UL)

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

UL RMSD (2012) Roofing Materials and Systems Directory

1.2 DESCRIPTION OF ROOF MEMBRANE SYSTEMS

Minimum three-ply APP modified bitumen roof membrane consisting of fiberglass felt base sheet, interply sheet and cap sheet. Modified bitumen roof membrane must be torch applied.

All work must follow the NRCA RoofMan guidelines and standards stated within this Section.

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. Submittals with an "S" are for inclusion in the Sustainability Notebook, in conformance to Section 01 33 29 SUSTAINABILITY REPORTING. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Roof plan; G M drawing depicting wind loads and boundaries of

SECTION 07 52 00 Page 5 enhanced perimeter and corner attachments of roof system components, as applicable

SD-03 Product Data

Modified Bitumen Sheets; G M

Fiberglass Felt; G M

Primer; G M

Modified Bitumen Roof Cement; G M

Pre-Manufactured Accessories

Fasteners And Plates; G M

Sample Warranty certificate; G M

Submit all data required by Section 07 21 13 BOARD AND BLOCK INSULATION, together with requirements of this section. Include in data written acceptance by the roof membrane manufacturer of the products and accessories provided. Products must 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 Calculations; G M

Provide Engineering calculations, signed, sealed, and dated by a qualified Engineer validating the wind resistance per ASCE 7, ASTM D4073, and ANSI/SPRI/FM 4435/ES-1 of non-rated roof system.

SD-07 Certificates

Qualification of Manufacturer

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

Qualification of Applicator

Certify that the applicator meets requirements specified under paragraph entitled "Qualification of Applicator."

Qualification of Engineer of Record

Certify that the Engineer of Record is fully qualified, competent, and currently licensed to practice in the project jurisdiction.

Bill of Lading

Submit bill of lading when labels of asphalt containers do not bear the flash point (FP), finished blowing temperature (FBT), and equiviscous temperature (EVT).

Wind Uplift Resistance; G M classification, as applicable

SECTION 07 52 00 Page 6

Fire Resistance classification; G M

Submit the roof system assembly wind uplift and fire rating classification listings.

SD-08 Manufacturer's Instructions

Modified Bitumen Membrane Application; G R

Flashing; G R

Temperature Limitations for Asphalt

Torches

Cold Adhesive Applied Modified Bitumen Membrane; G R

Base Sheet attachment, including pattern and frequency of mechanical attachments required in field of roof, corners, and perimeters to provide for the specified wind resistance.

Primer

Fasteners

Ventilating Base Sheets

Include detailed application instructions and standard manufacturer drawings altered as required by these specifications.

Include membrane manufacturer requirements for nailers and backnailing of roof membrane on steep slopes. Explicitly identify in writing, differences between manufacturer's instructions and the specified requirements.

SD-11 Closeout Submittals

Warranty; G M/R

Information Card; G M/R

Instructions To Government Personnel; G M/R

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

Submit 20 year "No-Dollar-Limit" warranty for labor and materials.

1.4 QUALITY ASSURANCE

1.4.1 Qualification of Manufacturer

Modified bitumen sheet roofing system manufacturer must have a minimum of 5 years experience in manufacturing modified bitumen roofing products.

1.4.2 Qualification of Applicator

Roofing system applicator must be approved, authorized, or licensed in writing by the modified bitumen sheet roofing system manufacturer and have

SECTION 07 52 00 Page 7 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 must supply the names, locations and client contact information of five 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 Qualification of Engineer of Record

Engineer of Record must be currently licensed within the jurisdiction of the project.

Engineer of Record must be approved, authorized, and currently licensed and have a minimum of five years experience as an approved Engineer for manufacturers of similar roof systems. Engineer of Record must supply the names and locations of five projects of similar size and scope for which he has provided engineering calculations using the manufacturer's products submitted for this project within the previous three years. Engineer of Record must provide certified engineering calculations for:

Wind uplift requirements in accordance with Local codes

1.4.4 Fire Resistance

Complete roof covering assembly must:

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

b. Be listed as part of Fire-Classified roof deck construction in UL RMSD, or Class I roof deck construction in FM APP GUIDE.

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

1.4.5 Wind Uplift Resistance

The complete roof system assembly shall be rated and installed to resist wind loads calculated in accordance with ASCE 7 and validated by uplift resistance testing in accordance with Factory Mutual (FM) test procedures.

Non-rated systems must not be installed, except as approved by the Contracting Officer. Submit licensed engineer's Wind uplift calculations and substantiating data to validate any non-rated roof system. Base wind uplift measurements on a design wind speed of 90 km/h in accordance with ASCE 7and/or other applicable building code requirements.

1.4.6 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, including Roof Plan, specifications and submittals related to the roof work

Field inspection and verification of all existing conditions, including all fire safety issues, existing structure, and existing

SECTION 07 52 00 Page 8 materials, including concealed combustibles, which may require additional protection during installation.

b. Roof system components installation

c. Procedure for the roof manufacturer's technical representative's onsite inspection and acceptance of the roof structure, and 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 representatives to roof manufacturer

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

e. Quality control, (ARMA PMBRG98) plan for the roof system installation

f. Safety requirements

Coordinate preroofing conference scheduling with the Contracting Officer.

The conference must be attended by the Contractor, the Contracting Officer's designated personnel, and personnel directly responsible for the installation of roofing and insulation, flashing and sheet metal work, mechanical and electrical work, other trades interfacing with the roof work, designated safety personnel trained to enforce and comply with ASSE/SAFE A10.24 , 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 DELIVERY, STORAGE, AND HANDLING

1.5.1 Delivery

Deliver materials in manufacturers' original unopened containers and rolls with labels intact and legible. Mark and remove wet or damaged materials from the site. Where materials are covered by a referenced specification, the container must bear the specification number, type, and class, as applicable. Labels or bill of lading for roofing asphalt must indicate asphalt type, FP, FBT, and EVT, that is, the temperature at which the viscosity is either 125 centistokes when tested in accordance with ASTM D2170/D2170M or 75 centipoise when tested in accordance with ASTM D4402/D4402M . Deliver materials in sufficient quantity to allow work to proceed without interruption.

1.5.2 Storage

Protect materials against moisture absorption and contamination or other damage. Avoid crushing or crinkling of roll materials. Store roll materials on end on clean raised platforms or pallets one level high in dry locations with adequate ventilation, such as an enclosed building or closed trailer. Do not store roll materials in buildings under construction until concrete, mortar, and plaster work is finished and dry. Maintain roll materials at temperatures above 10 degrees C for 24 hours immediately before application. Do not store materials outdoors unless approved by the Contracting Officer. Completely cover felts stored outdoors, on and off roof, with waterproof canvas protective covering. Do not use polyethylene sheet as a covering. Tie covering securely to pallets to make completely weatherproof. Provide sufficient ventilation to prevent condensation. Do

SECTION 07 52 00 Page 9 not store more materials on roof than can be installed the same day and remove unused materials at end of each days work. Distribute materials temporarily stored on roof to stay within live load limits of the roof construction.

Maintain a minimum distance of 10.67 meters for all stored flammable materials, including materials covered with shrink wraps, craft paper and/or tarps from all torch/welding applications.

Immediately remove wet, contaminated or otherwise damaged or unsuitable materials from the site. Damaged materials may be marked by the Contracting Officer.

1.5.3 Handling

Prevent damage to edges and ends of roll materials. Do not install damaged materials in the work. Select and operate material handling equipment to prevent damage to materials or applied roofing.

1.6 ENVIRONMENTAL REQUIREMENTS

Do not install roofing system when air temperature is below 4.44 degrees C, during any form of precipitation, including fog, or when there is ice, frost, moisture, or any other visible dampness on the roof deck. Follow manufacturer's printed instructions for Cold Weather Installation.

1.7 TORCH APPLIED (HEAT WELD) MODIFIED BITUMEN MEMBRANE SAFETY

1.7.1 Property Protection

Take all precautions necessary to prevent ignition of combustible materials during torch application of roofing. Immediately call the fire department if a fire commences. Review all fire safety procedures as outlined at the pre-roofing conference.

Install materials using the techniques recommended by CERTA NRCA/MRCA Certified Roofing Torch Applicator Program available from the National Roofing Contractors Association (NRCA) and the Midwest Roofing Contractors Association (MRCA) as endorsed by the Asphalt Roofing Manufacturers Association (ARMA) and the United Union of Roofers, Waterproofers and Allied Workers. Application procedures must comply with NFPA 241 , OSHA 29 CFR 1910 and 29 CFR 1910.12 , 29 CFR 1926.16 , 29 CFR 1926 Subpart F.

Do not store flammable liquids on the roof.

Provide a minimum of two 10 liter containers of water and two fully charged minimum 9.072 kg CO2 fire extinguishers in separate, easily accessible locations on the roof and within 9.144 meters of each torch work area at all times.

Comply with the following safety procedures:

a. Fuel containers, burners, and related appurtenances of roofing equipment in which liquefied petroleum gas is used for heating must comply with the requirements of NFPA 58 .

b. Fuel containers having capacities greater than one pound must be located a minimum of 3.048 m clear distance from the burner flame.

SECTION 07 52 00 Page 10

c. All LP-Gas Cylinders must be clearly labeled "Flammable Gas", and secured to prevent accidental tip-over.

d. Check all pressure regulators and hoses prior to use for proper functioning and integrity.

e. Do not use flammable liquids with a flash point below 37.78 degrees C (gasoline and similar products) for cleaning purposes.

Check all fire extinguishers prior to commencement of work, and upon completion of the day's work, to ensure fullness and operability.

Project supervisor must make daily inspections with the facility manager of all conditions and operations which could present hazards during torching applications and issue directives to address all such concerns and items of the work and existing conditions.

Identify and protect all combustible roof components, possible fire traps, and hidden hazards. Seal off voids or openings in the substrate with non-combustible materials prior to installing torch-applied materials in the area. Install protective fire retardant blankets and shields at building walls, eaves, parapets and equipments curbs constructed of combustible materials within 0.9144 meter radius of the area of torch work prior to commencement of the work.

When working around intakes and openings, temporarily disconnect and block to prevent flame of torch from being drawn into the opening. Provide non-combustible shielding or flame guard protection where gaps or voids occur in the construction in area of torch work.

1.7.2 Fire Watch

All personnel on the roof during torch application must be properly trained to use a fire extinguisher. Provide a fire watch for a minimum of 30 minutes after completion of hot-mopped kettle operations at the end of each work shift. Maintain the fire watch for additional time required to ensure no potential ignition conditions exist. Utilize heat sensing meters to scan for hot spots in the work. For torch applications, provide and utilize a minimum of one certified heat detection gun per torch for use during the fire watch to verify cool, safe and non-combustible conditions exist. Provide a minimum duration fire watch of two hours conducted by personnel properly trained to survey the underside of the roof deck (where possible) and the topside of possible smoldering elements.

Do not torch in areas of poor and/or no visibility (curbs, corners, eaves, expansions joints, flashing, other voids and small penetrations) which could allow a torch flame to ignite combustible material(s) hidden from view or within the underside of the roof deck or building interior. Use cold finish applications in these areas whenever possible and per manufacturer's printed instructions, NRCA 4002, MRCA R&NW manual for "cold adhered" materials.

Do not leave the rooftop unattended during breaks in work during a work shift. Walk and scan all areas of application checking for hot spots, fumes, or smoldering, especially at wall and curb areas, prior to departure at the end of each work shift. Ensure any and all suspect conditions are

SECTION 07 52 00 Page 11 eliminated prior to leaving the site each work shift.

1.7.3 Open Flame Application (Torch) Equipment and Personnel Safety

Only NRCA/MRCA CERTA certified roofing applicators are allowed to operate any torching equipment. Verify that all such applicators maintain and are currently carrying a valid Certified Roofing Torch Applicator (CERTA) card.

All crew members must be trained in preventive measures for indirect and direct dangers and hazards associated with roofing work, which include, but are not limited to the following:

a. Heat Stress: Wear light colored clothing, a hat for ultra-violet protection, and other eye protective devices. Drink sufficient quantities of non-alcoholic, non-caffeine liquids. Stage shifts for crew members to allow for breaks from heat and sun exposure without interfering with work progress.

b. First Aid for Burns: Immediately call for an ambulance. Contact local Occupational Health Services (OHS).

All crew members must wear correct personal protective equipment (PPE), including. but not limited to the following items:

a. Long-sleeved shirts buttoned at the collar and cuffs,and must be made of non-flammable materials. Polyester materials are not allowed.

b. Work boots covering ankles with rubber or composite soles.

c. Long pants without cuffs to extend over the top of the work boots, and must be made of non-flammable materials. No polyester allowed.

d. Heavy leather gloves and/or flame retardant gauntlets which must be worn during all handling of a torch, whether operating or not.

e. OSHA and ANSI/ISEA Z87.1 approved face shields, goggles and/or safety glasses to be worn during torching and any other applicable roofing functions.

f. OSHA and ANSI approved hard hats.

1.7.4 Wind Conditions

Use side shields with all torching operations when winds are occurring to prevent flame distortion of end burners. Use torch machine equipment with bottom shield plate to prevent flame spread on to roof deck and substrate.

When high wind gusts are present, notify the safety officer and cease all use of torching equipment until wind conditions lower and authorization from the safety officer to proceed is received.

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 counter flashing, per NRCA Details , and 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 must immediately follow application of insulation as a continuous operation. Coordinate roofing operations with insulation work

SECTION 07 52 00 Page 12 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. Provide revision or amendment to standard membrane manufacturer warranty as required to comply with the specified requirements. Minimum manufacturer warranty shall have no dollar limit, cover full system water-tightness, and shall have a minimum duration of 20 years.

1.9.1 Roof Membrane Manufacturer Warranty

Furnish the roof membrane manufacturer's 20-year no dollar limit roof system materials and installation workmanship warranty , including flashing, insulation in compliance with ASTM C1289, and accessories necessary for a watertight roof system construction. Provide warranty directly to the Government and commence warranty effective date at time of Government's acceptance of the roof work. The warranty must 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, blisters, splits, tears, delaminates, separates at the seams, 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 are the responsibility of the roof membrane manufacturer. All costs associated with the repair or replacement work are 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 does not void the warranty.

c. Upon completion of installation, and acceptance by the Contracting Officer and Roofing System Engineer of Record, the manufacturer must supply the appropriate warranty to the Owner.

d. Installer must submit a minimum two year warranty to the membrane manufacturer from the date of acceptance, with a copy to the Contracting Officer and Roofing System Engineer of Record.

1.9.2 Roofing System Installer Warranty

The roof system installer must warrant for a period of 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. Write the warranty directly to the Government. The roof system installer is responsible for correction of defective workmanship and replacement of damaged or affected materials.

The roof system installer is responsible for all costs associated with the repair or replacement work.

SECTION 07 52 00 Page 13

1.9.3 Continuance of Warranty

Repair or replacement work, ARMA 410BUR88, NRCA C3701 that becomes necessary within the warranty period 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 must be in accordance with specified and indicated requirements, including fire and wind resistance ( ANSI/SPRI/FM 4435/ES-1 ) requirements. Work not specifically addressed and any deviation from specified requirements must be in general accordance with recommendations of the NRCA Roofing and Waterproofing Manual, membrane manufacturer published recommendations and details, and compatible with surrounding components and construction. Submit any deviation from specified or indicated requirements to the Contracting Officer for approval prior to installation.

1.11 ELIMINATION, PREVENTION OF FALL HAZARDS

1.12 SUSTAINABILITY REPORTING

Coordinate with Section 01 33 29 LEED(tm) DOCUMENTATION.

1.12.1 Recycled Materials

Contractor shall select materials so that the sum of post-consumer recycled content value plus one-half of post-industrial recycled content value constitutes at least 10 percent of the total materials cost for the project. EPA Comprehensive Procurement Guidelines has a supplier database:

http://www.epa.gov/cpg/products/

1.12.2 Local/Regional Materials

Contractor shall select materials so that a minimum of 10 percent (by dollar value) of materials and products for the project are extracted, harvested, or recovered, as well as manufactured, regionally within a 800 kilometer radius of the project site. PART 2 PRODUCTS

2.1 MODIFIED BITUMEN SHEETS AND FIBERGLASS FELT MATERIALS

Furnish a combination of specified materials that comprise the modified bitumen manufacturer's standard system of the number and type of plies specified. Materials provided must be suitable for the service and climatic conditions of the installation. Modified bitumen sheets must be watertight and visually free of pinholes, particles of foreign matter, non-dispersed raw material, factory splices, or other conditions that might affect serviceability. Polymer modifier must comply with ARMA PMBRG98 and be uniformly dispersed throughout the sheet. Edges of sheet must be straight and flat.

a. Venting Base Sheet: ASTM D4897/D4897M , Type II, with perforations and as approved by the modified bitumen roof membrane manufacturer.

b. APP Cap Sheet: ASTM D6222/D6222M , Type II; or ASTM D6223/D6223M ; Grade G, minimum 4.0 mm thick.

SECTION 07 52 00 Page 14

2.2 BASE FLASHING MEMBRANE

Membrane manufacturer's standard, minimum two-ply modified bitumen membrane flashing system compatible with the roof membrane specified and as recommended in membrane manufacturer's published literature. Flashing membranes must meet or exceed the properties of the material standards specified for the modified bitumen base and cap sheet, except that flashing membrane thickness must be as recommended by the membrane manufacturer..

2.3 MEMBRANE SURFACING

Provide modified bitumen roof membrane cap sheet with factory-applied granule surfacing of light color as selected from membrane manufacturer's standard colors.

2.4 PRIMER

ASTM D41/D41M, or other primer compatible with the application and as approved in writing by the modified bitumen membrane manufacturer.

2.5 MODIFIED BITUMEN ROOF CEMENT

ASTM D4586/D4586M , Type II for vertical surfaces, Type I for horizontal surfaces, compatible with the modified bitumen roof membrane and as recommended by the modified bitumen membrane manufacturer.

2.6 CANT AND TAPERED EDGE STRIPS

Provide standard cants and tapered edge strips of the same material as the roof insulation or when roof insulation material is not available, provide pressure preservative treated wood, wood fiberboard, or rigid perlite board cants and edge strips as recommended by the manufacturer. Cant strips must be minimum 101.6 mm vertical height with 45 degree cant angle, except where clearance restricts height to lesser dimension. Taper edge strips at a rate of 25.4 mm to 38.1 mm per 304.8 mm to a minimum of 3.175 mmof thickness. Provide kiln-dried preservative-treated wood cants at base of wood nailers set on edge and wood curbing and where otherwise indicated.

2.7 FASTENERS AND PLATES

Provide coated, corrosion-resistant fasteners as recommended by the modified bitumen sheet manufacturer's printed instructions and meeting the requirements of FM 4470 and FM APP GUIDE for Class I roof deck construction and the wind uplift resistance specified. For fastening of membrane or felts to wood materials, provide fasteners driven through 25.4 mm diameter metal discs, or one piece composite fasteners with heads not less than 25.4 mm in diameter or 25.4 mm square with rounded or 45 degree tapered corners.

2.7.1 Masonry or Concrete Walls and Vertical Surfaces

Use hardened steel nails or screws with flat heads, diamond shaped points, and mechanically deformed shanks not less than 25.4 mm long for securing felts, modified bitumen sheets, metal items, and accessories to masonry or concrete walls and vertical surfaces. Use power-driven fastenersonly when approved in writing by the Contracting Officer.

SECTION 07 52 00 Page 15

2.7.2 Metal Plates

Provide flat corrosion-resistant round stress plates as recommended by the modified bitumen sheet manufacturer's printed instructions and meeting the requirements of FM 4470 ; not less than 50.8 mm in diameter. Form discs to prevent dishing or cupping.

PART 3 EXECUTION

3.1 EXAMINATION

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

a. Drains, curbs, cants, control 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. Joints in the substrate are sealed to prevent dripping of bitumen into building or down exterior walls.

c. The plane of the substrate does not vary more than 6.35 mmwithin an area

3.048 by 3.048 meters when checked with a 3.048 meter straight edge placed anywhere on the substrate.

d. Substrate is sloped as indicated to provide positive drainage.

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

f. Treated wood nailers are in place on non-nailable surfaces, to permit nailing of base flashing at minimum height of 203.2 mm above finished roofing surface.

g. Protect all combustible materials and surfaces which may contain concealed combustible or flammable materials. All fire extinguishing equipment has been placed as specified.

h. Verify all Fire Watch personnel assignments.

i. 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.

j. 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 88.9 mm.

k. Venting is provided in accordance with the following:

(1) Edge Venting: Perimeter nailers are kerfed across the width of the nailers to permit escape of gaseous pressure at roof edges.

(2) Underside Venting: Vent openings are provided in steel form decking for cast-in-place concrete substrate.

SECTION 07 52 00 Page 16

3.2 PREPARATION

3.2.1 Protection of Property

3.2.1.1 Protective Coverings

Install protective coverings at paving and building walls adjacent to hoists prior to starting the work. Lap protective coverings not less than

15.24 cm , secure against wind, and vent to prevent collection of moisture on covered surfaces. Keep protective coverings in place for the duration of the roofing work.

3.2.2 Equipment

3.2.2.1 Mechanical Application Devices

Mount mechanical application devices on pneumatic-tired wheels. Use devices designed and maintained to operate without damaging the insulation, roofing membrane, or structural components.

3.2.2.2 Electric-Heated Equipment

Provide adequate electrical service as required by manufacturer of electrical equipment to ensure against damage to equipment and property and to ensure proper application of roofing materials.

3.2.3 Heating of Asphalt

3.2.3.1 Temperature Limitations for Asphalt

Heat and apply asphalt at the temperatures specified below unless specified otherwise by manufacturer's printed application instructions. Use thermometer to check temperature during heating and application. Have kettle attended constantly during heating process to ensure specified temperatures are maintained. Do not heat asphalt above its finished blowing temperature (FBT). Do not heat asphalt between 260 and 274 degrees C for longer than four consecutive hours. Do not heat asphalt to the flash point (FP). Apply asphalt and embed membrane sheets when temperature of asphalt is within plus or minus 14 degrees C of the equiviscous temperature (EVT) but not less than 204 degrees C. Before heating and application of asphalt refer to the asphalt manufacturer's label or bill of lading for FP, FBT, and EVT of the asphalt used.

3.2.4 Priming of Surfaces

Prime all surfaces to be in contact with adhered membrane materials. Apply primer at the rate of 3 liters per 10 sq. metersor as recommended by modified bitumen sheet manufacturer's printed instructions to promote adhesion of membrane materials. Allow primer to dry prior to application of membrane materials to primed surface. Avoid flammable primer material conditions in torch applied membrane applications.

3.2.4.1 Priming of Concrete and Masonry Surfaces

After surface dryness requirements have been met, coat concrete and masonry

SECTION 07 52 00 Page 17 surfaces which are to receive membrane materials uniformly with primer.

3.2.4.2 Priming of Metal Surfaces

Prime flanges of metal components to be embedded into the roof system prior to setting in bituminous materials or stripping into roofing system.

3.2.5 Membrane Preparation

Unroll modified bitumen membrane materials and allow to relax a minimum of 30 minutes prior to installation. In cold weather, adhere to membrane manufacturer's additional recommendations for pre-installation membrane handling and preparation. Inspect for damage, pinholes, particles of foreign matter, non-dispersed raw material, factory splices, or other conditions that might affect serviceability. Edges of seams must be straight and flat so that they may be seamed to one another without forming fish mouths or wrinkles. Discard damaged or defective materials.

3.2.6 Substrate Preparation

Apply membrane to clean, dry surfaces only. Do not apply membrane to surfaces that have been wet by rain or frozen precipitation within the previous 12 hours. Provide cleaning and artificial drying with heated blowers or torches as necessary to ensure clean, dry surface prior to membrane application.

3.3 APPLICATION

Apply roofing materials as specified herein unless approved otherwise by the Contracting Officer. Keep roofing materials dry before and during application. Complete application of roofing in a continuous operation.

Begin and apply only as much roofing in one day as can be completed that same day. Maintain specified temperatures for asphalt.

3.3.1 Phased Membrane Construction

Phased application of membrane plies is prohibited unless otherwise approved by the Contracting Officer and supported by the membrane manufacturer's written application instructions. If cap sheet installation is delayed, thoroughly clean the applied membrane material surface and dry immediately prior to cap sheet installation. Priming of the applied membrane surface may be required at the discretion of the Contracting Officer prior to cap sheet installation.

3.3.2 Temporary Roofing and Flashing

Provide watertight temporary roofing and flashing where considerable work by other trades, such as installing cooling towers, antennas, pipes, ducts, is to be performed on the roof or where construction scheduling or weather conditions require protection of the building's interior before permanent roofing system can be installed. Do not install temporary roofing over permanently installed insulation. Provide rigid pads for traffic over temporary roofing.

3.3.2.1 Removal

Completely remove temporary roofing and flashing before continuing with application of the permanent roofing system.

SECTION 07 52 00 Page 18

3.3.3 Application Method

3.3.3.1 Torch Applied Modified Bitumen Membrane

Base flashing membrane may be torch applied. Ensure substrate membrane surfaces are warmed either naturally or by torch during the installation.

Apply heat evenly to underside of roll membrane being installed and exposed side lap area of previously installed sheet. Provide for slight, uniform flow of bitumen in front of roll and full width of roll as the material is being rolled or set into place. Apply uniform positive pressure to ensure membrane is fully adhered and all laps are sealed. Prior to forming lap over granulated surfaces, embed granules of the receiving sheet by heating and troweling-in the granules to form a uniform black compound surface.

Roll all lap areas with a weighted roller immediately after forming lap.

Provide for visual bleed out of compound in lap areas. Avoid overheating the membrane or burning through to membrane reinforcement. Inspect and ensure all lap areas are fully sealed.

3.3.4 Ventilating Base Sheets

Apply ventilating base sheets with 76.2 mm side laps and 152.4 mm end laps in accordance with manufacturer's printed application instructions for substrate and wind uplift conditions specified. Mechanical attachments must be as required for wind resistance specified and to include increased frequency of attachment at corner and perimeter areas. Drive fasteners flush with no dishing or cupping of fastener plate. Top mop perforated sheet with a full, continuous mopping of hot asphalt.

3.3.5 Fiberglass Felt Base Sheet

Fully adhere base sheets in accordance with membrane manufacturer's printed instructions. Roll and broom in the base sheet to ensure full contact with the primer. Apply sheets in a continuous operation. Apply sheets with side laps at a minimum of 50.8 mm unless greater side lap is recommended by the manufacturer's standard written application instructions. Provide end laps of not less than 152.4 mm and staggered a minimum of 914.4 mm. Apply sheets at right angles to the roof slope so that the direction of water flow is over and not against the laps. Extend base sheets approximately 50.8 mm above the top of cant strips at vertical surfaces and to the top of cant strips elsewhere. Trim base sheet to a neat fit around vent pipes, roof drains, and other projections through the roof. Application must be free of ridges, wrinkles, and buckles.

3.3.6 Modified Bitumen Membrane…