36C25619R0056-002.pdf

SCOPE OF WORK

Project No. 586‐19‐105

Repair Roof CLC

Department of Veterans Affairs

G. V. (Sonny) Montgomery VA Medical Center

Jackson, MS

Date: 2/12/2019

Table of Contents

I. Scope of Work

II. Project Schedule

III. Location map

IV. Specifications

V. Details

I. Scope of Work

Contractor shall furnish all labor, tools, material and supervision for the replacement of the

Community Living Center (CLC) roof system herein described. The project is located at the

G. V. (Sonny) Montgomery VA Medical Center, Building 7 in Jackson, MS. The roof, approximately 24,000 sf, will require complete demolition and replacement as specified under Specification Section 07 52 16. Submissions that do not meet all specifications will not be accepted. All existing conditions shall be field verified prior to submitting bid for accuracy. Questions will be accepted through the Contracting Officer for clarification by VA.

Copies will be made available for any references throughout specifications upon request.

The roof replacement (area illustrated in attachment 1) shall consist of, but not limited to, complete demolition of the existing roofing system to bare structure, removal of all abandoned curbs, pipe‐stands, equipment pads, etc.; sealing of existing abandoned roof penetrations, surface preparation, repair of flashings and all other roof‐related elements, installation of new roof per specifications, reinstallation of lightning protection, installation of new walkway pads, new perimeter warning line per OSHA guidelines and final cleaning.

II. Project Schedule

The allowed duration for this project is 120 days from issued Notice to Proceed. Normal business hours of the medical center are Monday through Friday, 7:00am – 4:30pm.

Weekend work may be allowed at discretion of VA. Contractor to submit, minimum 3 day, advanced written request for review by Contracting Officer Technical Representative

(COTR).

G. V. (Sonny) Montgomery VA Medical Center – Jackson, MS

Project No. 586‐19‐105 Roof Location Map

“ Attachment 1 ”

III. Lo catio n M ap

IV. Specifications

01 00 00 ‐ General Requirements

07 01 50.19 ‐ Preparation for Re‐Roofing

07 52 16 ‐ Styrene‐Butadiene‐Styrene (SBS) Modified Bituminous

Membrane Roofing, Cold‐Applied

10-01-14 i

SECTION 01 00 00

GENERAL REQUIREMENTS

TABLE OF CONTENTS

1.1 GENERAL INTENTION

1.2 STATEMENT OF BID ITEM(S)

1.3 SPECIFICATIONS AND DRAWINGS FOR CONTRACTOR

1.4 CONSTRUCTION SECURITY REQUIREMENTS

1.5 OPERATIONS AND STORAGE AREAS

1.6 ALTERATIONS

1.7 DISPOSAL AND RETENTION

1.8 PROTECTION OF EXISTING VEGETATION, STRUCTURES, EQUIPMENT,

UTILITIES, AND IMPROVEMENTS

1.9 RESTORATION

1.10 LAYOUT OF WORK

1.11 USE OF ROADWAYS

1.12 TEMPORARY USE OF EXISTING ELEVATORS

1.13 AVAILABILITY AND USE OF UTILITY SERVICES

1.14 PHOTOGRAPHIC DOCUMENTATION

01 00 00 -1

SECTION 01 00 00

GENERAL REQUIREMENTS

1.1 GENERAL INTENTION

A. Contractor shall completely prepare site for building operations, including demolition and removal of existing structures, and furnish labor and materials and perform work for the replacement of roof systems as required by drawings and specifications.

B. Visits to the site by Bidders may be made only by appointment with the

Medical Center Engineering Officer (COTR).

C. All employees of general contractor and subcontractors shall comply with VA security management program and obtain permission of the VA police, be identified by project and employer, and restricted from unauthorized access.

1.2 STATEMENT OF BID ITEM(S)

A. ITEM I, GENERAL CONSTRUCTION: Roofing: Work includes general construction, alterations, necessary removal of existing structures and construction and certain other items.

1.3 SPECIFICATIONS AND DRAWINGS FOR CONTRACTOR

A. Drawings and contract documents may be obtained from the website where the solicitation is posted. Additional copies will be at Contractor's expense.

1.4 CONSTRUCTION SECURITY REQUIREMENTS

A. Security Plan:

1. The security plan defines both physical and administrative security procedures that will remain effective for the entire duration of the project.

01 00 00 -2

2. The General Contractor is responsible for assuring that all sub-contractors working on the project and their employees also comply with these regulations.

B. Security Procedures:

1. General Contractor’s employees shall not enter the project site without appropriate badge. They may also be subject to inspection of their personal effects when entering or leaving the project site.

2. Before starting work the General Contractor shall give one week’s notice to the Contracting Officer so that escort arrangements can be provided for the employees. This notice is separate from any notices required for utility shutdown described later in this section.

3. No photography of VA premises is allowed without written permission of the Contracting Officer.

4. VA reserves the right to close down or shut down the project site and order General Contractor’s employees off the premises in the event of a national emergency. The General Contractor may return to the site only with the written approval of the Contracting Officer.

C. Key Control:

1. The General Contractor shall provide duplicate keys and lock combinations to the Contracting officers representative (COTR)//

Resident Engineer // COR // for the purpose of security inspections of every area of project including tool boxes and parked machines and take any emergency action.

D. Document Control:

1. The General Contractor is responsible for safekeeping of all drawings, project manual and other project information. This information shall be shared only with those with a specific need to accomplish the project.

2. All paper waste or electronic media such as CD’s and diskettes shall be shredded and destroyed in a manner acceptable to the VA.

E. Motor Vehicle Restrictions

01 00 00 -3

1. Vehicle authorization request shall be required for any vehicle entering the site and such request shall be submitted 24 hours before the date and time of access. Access shall be restricted to picking up and dropping off materials and supplies.

2. A limited number of (2 to 5) permits shall be issued for General

Contractor and its employees for parking in designated areas only.

1.5 OPERATIONS AND STORAGE AREAS

A. The Contractor shall confine all operations (including storage of materials) on Government premises to areas authorized or approved by the Contracting Officer. The Contractor shall hold and save the

Government, its officers and agents, free and harmless from liability of any nature occasioned by the Contractor's performance.

B. Temporary buildings (e.g., storage sheds, shops, offices) and utilities may be erected by the Contractor only with the approval of the

Contracting Officer and shall be built with labor and materials furnished by the Contractor without expense to the Government. The temporary buildings and utilities shall remain the property of the

Contractor and shall be removed by the Contractor at its expense upon completion of the work. With the written consent of the Contracting

Officer, the buildings and utilities may be abandoned and need not be removed.

C. The Contractor shall, under regulations prescribed by the Contracting

Officer, use only established roadways when and as authorized by the

Contracting Officer. When materials are transported in prosecuting the work, vehicles shall not be loaded beyond the loading capacity recommended by the manufacturer of the vehicle or prescribed by any

Federal, State, or local law or regulation. When it is necessary to cross curbs or sidewalks, the Contractor shall protect them from damage. The Contractor shall repair or pay for the repair of any damaged curbs, sidewalks, or roads.

(FAR 52.236-10)

D. Working space and space available for storing materials shall be as determined by the COTR.

01 00 00 -4

E. Workmen are subject to rules of Medical Center applicable to their conduct.

//E*. Execute work in such a manner as to interfere as little as possible with work being done by others. Keep roads clear of construction materials, debris, standing construction equipment and vehicles at all times.

F. Execute work so as to interfere as little as possible with normal functioning of Medical Center as a whole, including operations of utility services, fire protection systems and any existing equipment, and with work being done by others. Use of equipment and tools that transmit vibrations and noises through the building structure, are not permitted in buildings that are occupied, during construction, jointly by patients or medical personnel, and Contractor's personnel, except as permitted by COTR where required by limited working space.

1. Do not store materials and equipment in other than assigned areas.

2. Schedule delivery of materials and equipment to immediate construction working areas within buildings in use by Department of

Veterans Affairs in quantities sufficient for not more than two work days. Provide unobstructed access to Medical Center areas required to remain in operation.

3. Where access by Medical Center personnel to vacated portions of buildings is not required, storage of Contractor's materials and equipment will be permitted subject to fire and safety requirements.

//F*. Utilities Services: Where necessary to cut existing pipes, electrical wires, conduits, cables, etc., of utility services, or of fire protection systems or communications systems (except telephone), they shall be cut and capped at suitable places where shown; or, in absence of such indication, where directed by COTR. All such actions shall be coordinated with the COR or Utility Company involved.

G. Phasing:

The Medical Center must maintain its operation 24 hours a day 7 days a week. Therefore, any interruption in service must be scheduled and coordinated with the COTR to ensure that no lapses in operation occur.

It is the CONTRACTOR'S responsibility to develop a work plan and schedule detailing, at a minimum, the procedures to be employed, the

01 00 00 -5 equipment and materials to be used, the interim life safety measure to be used during the work, and a schedule defining the duration of the work with milestone subtasks. The work to be outlined shall include, but not be limited to:

To insure such executions, Contractor shall furnish the COTR with a schedule of approximate dates on which the Contractor intends to accomplish work in each specific area of site, building or portion thereof. In addition, Contractor shall notify the COTR two weeks in advance of the proposed date of starting work in each specific area of site, building or portion thereof. Arrange such dates to insure accomplishment of this work in successive phases mutually agreeable to

Medical Center Director, Cemetery Director, COTR and Contractor.

H. Building(s) will be occupied during performance of work .

Contractor shall take all measures and provide all material necessary for protecting existing equipment and property in affected areas of construction against dust and debris, so that equipment and affected areas to be used in the Medical Centers operations will not be hindered.

I. When a building and/or construction site is turned over to Contractor, Contractor shall accept entire responsibility including upkeep and maintenance therefore:

1. Contractor shall maintain a minimum temperature of 4 degrees C (40 degrees F) at all times, except as otherwise specified.

2. Contractor shall maintain in operating condition existing fire protection and alarm equipment. In connection with fire alarm equipment, Contractor shall make arrangements for pre-inspection of site with Fire Department or Company (Department of Veterans Affairs or municipal) whichever will be required to respond to an alarm from

Contractor's employee or watchman.

J. Utilities Services: Maintain existing utility services for Medical

Center at all times. Provide temporary facilities, labor, materials, 01 00 00 -6 equipment, connections, and utilities to assure uninterrupted services.

Where necessary to cut existing water, steam, gases, sewer or air pipes, or conduits, wires, cables, etc. of utility services or of fire protection systems and communications systems (including telephone), they shall be cut and capped at suitable places where shown; or, in absence of such indication, where directed by Resident Engineer //

COTR.

1. No utility service such as water, gas, steam, sewers or electricity, or fire protection systems and communications systems may be interrupted without prior approval of Resident Engineer // COTR //

[Chief Engineer][Chief of Facilities Management]. Electrical work shall be accomplished with all affected circuits or equipment de-energized. When an electrical outage cannot be accomplished, work on any energized circuits or equipment shall not commence without a detailed work plan, the Medical Center Director’s prior knowledge and written approval. Refer to specification Sections 26 05 11, REQUIREMENTS FOR ELECTRICAL INSTALLATIONS, 27 05 11 REQUIREMENTS FOR

COMMUNICATIONS INSTALLATIONS and 28 05 11, REQUIREMENTS FOR

ELECTRONIC SAFETY AND SECURITY INSTALLATIONS for additional requirements.

2. Contractor shall submit a request to interrupt any such services to

Resident Engineer // COTR //, in writing, 7 days in advance of proposed interruption. Request shall state reason, date, exact time of, and approximate duration of such interruption.

3. Contractor will be advised (in writing) of approval of request, or of which other date and/or time such interruption will cause least inconvenience to operations of Medical Center. Interruption time approved by Medical Center may occur at other than Contractor's normal working hours.

4. Major interruptions of any system must be requested, in writing, at least 15 calendar days prior to the desired time and shall be performed as directed by the Resident Engineer // COTR //.

5. In case of a contract construction emergency, service will be interrupted on approval of Resident Engineer // COTR //. Such approval will be confirmed in writing as soon as practical.

01 00 00 -7

K. Abandoned Lines: All service lines such as wires, cables, conduits, ducts, pipes and the like, and their hangers or supports, which are to be abandoned but are not required to be entirely removed, shall be sealed, capped or plugged at the main, branch or panel they originate from. The lines shall not be capped in finished areas, but shall be removed and sealed, capped or plugged in ceilings, within furred spaces, in unfinished areas, or within walls or partitions; so that they are completely behind the finished surfaces.

L. To minimize interference of construction activities with flow of

Medical Center traffic, comply with the following:

1. Keep roads, walks and entrances to grounds, to parking and to occupied areas of buildings clear of construction materials, debris and standing construction equipment and vehicles.

M. Coordinate the work for this contract with other construction operations as directed by Resident Engineer // COTR //. This includes the scheduling of traffic and the use of roadways, as specified in

Article, USE OF ROADWAYS.

1. The Contractor is required to discontinue his work sufficiently in advance of Easter Sunday, Mother's Day, Father's Day, Memorial Day, Veteran's Day and/or Federal holidays, to permit him to clean up all areas of operation adjacent to existing burial plots before these dates.

2. Cleaning up shall include the removal of all equipment, tools, materials and debris and leaving the areas in a clean, neat condition.

1.6 ALTERATIONS

A. Survey: Before any work is started, the Contractor shall make a thorough survey with the Resident Engineer // COR // // and a representative of VA Supply Service, of // buildings // areas of buildings // in which alterations occur and areas which are anticipated routes of access, and furnish a report, signed by // both, // all three, // to the Contracting Officer. This report shall list by rooms and spaces:

01 00 00 -8

1. Shall note any discrepancies between drawings and existing conditions at site.

2. Shall designate areas for working space, materials storage and routes of access to areas within buildings where alterations occur and which have been agreed upon by Contractor and Resident Engineer

// COTR //.

B. Any items required by drawings to be either reused or relocated or both, found during this survey to be nonexistent, or in opinion of

Resident Engineer // COTR // // and/or Supply Representative //, to be in such condition that their use is impossible or impractical, shall be furnished and/or replaced by Contractor with new items in accordance with specifications which will be furnished by Government. Provided the contract work is changed by reason of this subparagraph B, the contract will be modified accordingly, under provisions of clause entitled

"DIFFERING SITE CONDITIONS" (FAR 52.236-2) and "CHANGES" (FAR 52.243-4 and VAAR 852.236-88).

C. Re-Survey: Thirty days before expected partial or final inspection date, the Contractor and Resident Engineer // COR // together shall make a thorough re-survey of the areas of buildings involved. They shall furnish a report on conditions then existing, of resilient flooring, doors, windows, walls and other surfaces as compared with conditions of same as noted in first condition survey report:

1. Re-survey report shall also list any damage caused by Contractor to such flooring and other surfaces, despite protection measures; and, will form basis for determining extent of repair work required of

Contractor to restore damage caused by Contractor's workmen in executing work of this contract.

D. Protection: Provide the following protective measures:

1. Wherever existing roof surfaces are disturbed they shall be protected against water infiltration. In case of leaks, they shall be repaired immediately upon discovery.

2. Temporary protection against damage for portions of existing structures and grounds where work is to be done, materials handled and equipment moved and/or relocated.

01 00 00 -9

3. Protection of interior of existing structures at all times, from damage, dust and weather inclemency. Wherever work is performed, floor surfaces that are to remain in place shall be adequately protected prior to starting work, and this protection shall be maintained intact until all work in the area is completed.

1.7 DISPOSAL AND RETENTION

A. Materials and equipment accruing from work removed and from demolition of buildings or structures, or parts thereof, shall be disposed of as follows:

1. Reserved items which are to remain property of the Government are // identified by attached tags // or // noted on drawings or in specifications // as items to be stored. Items that remain property of the Government shall be removed or dislodged from present locations in such a manner as to prevent damage which would be detrimental to re-installation and reuse. Store such items where directed by Resident Engineer // COTR //.

2. Items not reserved shall become property of the Contractor and be removed by Contractor from Medical Center.

3. Items of portable equipment and furnishings located in rooms and spaces in which work is to be done under this contract shall remain the property of the Government. When rooms and spaces are vacated by the Department of Veterans Affairs during the alteration period, such items which are NOT required by drawings and specifications to be either relocated or reused will be removed by the Government in advance of work to avoid interfering with Contractor's operation.

//1.8 PROTECTION OF EXISTING VEGETATION, STRUCTURES, EQUIPMENT, UTILITIES,

AND IMPROVEMENTS

A. The Contractor shall preserve and protect all structures, equipment, and vegetation (such as trees, shrubs, and grass) on or adjacent to the work site, which are not to be removed and which do not unreasonably interfere with the work required under this contract. The Contractor shall only remove trees when specifically authorized to do so, and shall avoid damaging vegetation that will remain in place. If any limbs

01 00 00 -10 or branches of trees are broken during contract performance, or by the careless operation of equipment, or by workmen, the Contractor shall trim those limbs or branches with a clean cut and paint the cut with a tree-pruning compound as directed by the Contracting Officer.

B. The Contractor shall protect from damage all existing improvements and utilities at or near the work site and on adjacent property of a third party, the locations of which are made known to or should be known by the Contractor. The Contractor shall repair any damage to those facilities, including those that are the property of a third party, resulting from failure to comply with the requirements of this contract or failure to exercise reasonable care in performing the work. If the

Contractor fails or refuses to repair the damage promptly, the

Contracting Officer may have the necessary work performed and charge the cost to the Contractor.

(FAR 52.236-9)

C. Refer to Section 01 57 19, TEMPORARY ENVIRONMENTAL CONTROLS, for additional requirements on protecting vegetation, soils and the environment. Refer to Articles, "Alterations", "Restoration", and

"Operations and Storage Areas" for additional instructions concerning repair of damage to structures and site improvements.

D. Refer to FAR clause 52.236-7, "Permits and Responsibilities," which is included in General Conditions. A National Pollutant Discharge

Elimination System (NPDES) permit is required for this project. The

Contractor is considered an "operator" under the permit and has extensive responsibility for compliance with permit requirements. VA will make the permit application available at the (appropriate medical center) office. The apparent low bidder, contractor and affected subcontractors shall furnish all information and certifications that are required to comply with the permit process and permit requirements.

Many of the permit requirements will be satisfied by completing construction as shown and specified. Some requirements involve the

Contractor's method of operations and operations planning and the

Contractor is responsible for employing best management practices. The

01 00 00 -11 affected activities often include, but are not limited to the following:

- Designating areas for equipment maintenance and repair;

- Providing waste receptacles at convenient locations and provide regular collection of wastes;

- Locating equipment wash down areas on site, and provide appropriate control of wash-waters;

- Providing protected storage areas for chemicals, paints, solvents, fertilizers, and other potentially toxic materials; and

- Providing adequately maintained sanitary facilities.//

1.9 RESTORATION

A. Remove, cut, alter, replace, patch and repair existing work as necessary to install new work. Except as otherwise shown or specified, do not cut, alter or remove any structural work, and do not disturb any ducts, plumbing, steam, gas, or electric work without approval of the

Resident Engineer // COTR //. Existing work to be altered or extended and that is found to be defective in any way, shall be reported to the

Resident Engineer // COTR // before it is disturbed. Materials and workmanship used in restoring work, shall conform in type and quality to that of original existing construction, except as otherwise shown or specified.

B. Upon completion of contract, deliver work complete and undamaged.

Existing work (walls, ceilings, partitions, floors, mechanical and electrical work, lawns, paving, roads, walks, etc.) disturbed or removed as a result of performing required new work, shall be patched, repaired, reinstalled, or replaced with new work, and refinished and left in as good condition as existed before commencing work.

C. At Contractor's own expense, Contractor shall immediately restore to service and repair any damage caused by Contractor's workmen to existing piping and conduits, wires, cables, etc., of utility services or of fire protection systems and communications systems (including telephone) which are not scheduled for discontinuance or abandonment.

D. Expense of repairs to such utilities and systems not shown on drawings or locations of which are unknown will be covered by adjustment to

01 00 00 -12 contract time and price in accordance with clause entitled "CHANGES"

(FAR 52.243-4 and VAAR 852.236-88) and "DIFFERING SITE CONDITIONS" (FAR

52.236-2).

1.10 LAYOUT OF WORK

A. The Contractor shall lay out the work from Government established base lines and bench marks, indicated on the drawings, and shall be responsible for all measurements in connection with the layout. The

Contractor shall furnish, at Contractor's own expense, all stakes, templates, platforms, equipment, tools, materials, and labor required to lay out any part of the work. The Contractor shall be responsible for executing the work to the lines and grades that may be established or indicated by the Contracting Officer. The Contractor shall also be responsible for maintaining and preserving all stakes and other marks established by the Contracting Officer until authorized to remove them.

If such marks are destroyed by the Contractor or through Contractor's negligence before their removal is authorized, the Contracting Officer may replace them and deduct the expense of the replacement from any amounts due or to become due to the Contractor.

(FAR 52.236-17)

1.11 USE OF ROADWAYS

A. For hauling, use only established public roads and roads on Medical

Center property and, when authorized by the Resident Engineer // COTR

//, such temporary roads which are necessary in the performance of contract work.

1.12 TEMPORARY USE OF EXISTING ELEVATORS

A. Contractor will be allowed the use of existing service elevators.

1. Contractor covers and provides maximum protection of following elevator components:

a. Entrance jambs, heads soffits and threshold plates.

01 00 00 -13

b. Entrance columns, canopy, return panels and inside surfaces of car enclosure walls.

c. Finish flooring.

1.13 AVAILABILITY AND USE OF UTILITY SERVICES

A. The Government shall make all reasonably required amounts of utilities available to the Contractor from existing outlets and supplies, as specified in the contract.

1.14 PHOTOGRAPHIC DOCUMENTATION

A. During the construction period through completion, provide photographic documentation of construction progress and at selected milestones including electronic indexing, navigation, storage and remote access to the documentation, as per these specifications.

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10-10

07 01 50.19 - 1

SECTION 07 01 50.19

PREPARATION FOR RE-ROOFING

PART 1 - GENERAL

1.1 DESCRIPTION

A. Roof tear-off, partial roof tear-off, roof preparation, removal of base flashings on existing construction in preparation to receive new roofing membrane.

B. Existing Membrane Roofing System: EPDM roofing membrane, with related insulation, surfacing, and components and accessories between deck and roofing membrane.

1.2 RELATED WORK

A. Use of the premises and phasing requirements

B. Temporary construction and environmental-protection measures for reroofing preparation

C. HVAC equipment removal and reinstallation: Division 23 sections.

D. Electrical equipment disconnection and reconnection: Division 26 sections.

1.3 APPLICABLE PUBLICATIONS

A. Publications listed below form a part of this specification to the extent referenced. Publications are referenced in the text by the basic designation only. Editions of applicable publications current on date of issue of bidding documents apply unless otherwise indicated.

B. American National Standards Institute/Single-Ply Roofing Institute

(ANSI/SPRI):

ANSI/SPRI FX-1-01(R2006) Standard Field Test Procedure for

Determining the Withdrawal Resistance of

Roofing Fasteners.

C. ASTM International (ASTM):

C208-08.................Cellulosic Fiber Insulating Board

C728-05.................Perlite Thermal Insulation Board

C1177/C1177M-08.........Standard Specification for Glass Mat Gypsum

Substrate for Use as Sheathing

C1278/C1278M-07.........Standard Specification for Fiber-Reinforced

Gypsum Panel

07 01 50.19 - 2

D1079-09................Standard Terminology Relating to Roofing and

Waterproofing

D. FM Approvals: RoofNav Approved Roofing Assemblies and Products.

4450-89.................Approved Standard for Class 1 Insulated Steel

Deck Roofs

4470-10.................Approved Standard for Class 1 Roof Coverings

1-28-09.................Loss Prevention Data Sheet: Design Wind Loads.

1-29-09.................Loss Prevention Data Sheet: Above-Deck Roof

Components

1-49-09.................Loss Prevention Data Sheet: Perimeter Flashing

E. National Roofing Contractors Association: Roofing and Waterproofing

Manual

1.4 MATERIALS OWNERSHIP

A. Assume ownership of demolished materials and remove from Project site and dispose of legally, unless indicated to be reused, reinstalled, or otherwise to remain Owner's property.

1.5 DEFINITIONS

A. Refer to ASTM D1079 and NRCA "The NRCA Roofing and Waterproofing

Manual" for definition of terms.

1.6 QUALITY CONTROL

A. Requirements of Division 07 roofing section for qualifications of roofing system and roofing insulation Installer; work of this section shall be performed by same Installer.

1. Where Project requirements include removal of asbestos-containing material, Installer must be legally qualified to perform the required work.

2. Where Project requirements include work affecting existing roofing system to remain under warranty, Installer must be approved by warrantor of existing roofing system.

B. Regulatory Requirements: Comply with governing EPA notification regulations. Comply with hauling and disposal regulations of authorities having jurisdiction.

C. Reroofing Conference: Conduct conference at Project site.

1. Meet with Owner; Architect-Engineer; testing and inspecting agency representative; roofing system manufacturer's representative;

roofing Installer including project manager, superintendent, and foreman; and installers whose work interfaces with or affects reroofing.

07 01 50.19 - 3

2. Review methods and procedures related to roofing system tear-off and replacement

1.7 SUBMITTALS

A. Submit in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT

DATA, AND SAMPLES.

B. Manufacturer's Literature and Data:

1. Recover boards.

C. List of proposed infill materials.

D. List of proposed temporary roofing materials.

E. Fastener pull-out test report.

F. Photographs or Videotape: Document existing conditions of adjacent construction including site improvements.

G. Landfill Records: Indicate receipt and acceptance of hazardous wastes by a licensed landfill facility.

H. Qualification Data: For Installer.

1. Certificate indicating Installer is licensed to perform asbestos abatement.

2. Certificate indicating Installer is approved by warrantor of existing roofing system.

1.8 PROJECT CONDITIONS

A. Owner will occupy portions of building below reroofing area. Conduct reroofing so Owner's operations will not be disrupted.

1. Coordinate work activities daily with Owner.

2. Provide Owner with not less than 72 hours' notice of activities that may affect Owner's operations.

B. Protect building and landscaping from damage.

C. Maintain access to existing walkways and adjacent occupied facilities.

D. Available Information: The following are available for Contractor reference:

1. Contractor is responsible for field verifying existing conditions.

E. Weather Limitations: Proceed with reroofing preparation only when weather conditions permit Work to proceed without water entering existing roofing system or building.

F. Hazardous Materials: It is not expected that Contractor will encounter hazardous materials such as asbestos-containing materials.

1. Do not disturb materials suspected of containing hazardous materials. Notify Owner for testing. Hazardous materials will be removed by Owner under a separate contract.

07 01 50.19 - 4

PART 2 - PRODUCTS

2.1 INFILL MATERIALS

A. Use infill materials matching existing membrane roofing system materials.

2.2 TEMPORARY ROOFING MATERIALS

A. Design of temporary roofing and selection of materials are responsibilities of Contractor.

PART 3 - EXECUTION

3.1 PREPARATION

A. Protect existing membrane roofing system that is indicated not to be reroofed.

1. Limit traffic and material storage to areas of existing roofing membrane that have been protected.

2. Maintain temporary protection and leave in place until replacement roofing has been completed. Remove temporary protection on completion of reroofing.

B. Coordinate with Owner to shut down air-intake equipment in the vicinity of the Work. Cover air-intake louvers before proceeding with reroofing work that could affect indoor air quality or activate smoke detectors in the ductwork.

1. Comply with Owner's requirements for maintaining fire watch when temporarily disabling smoke detectors.

C. During removal operations, have sufficient and suitable materials on-site to facilitate rapid installation of temporary protection in the event of unexpected rain.

D. Maintain roof drains in functioning condition to ensure roof drainage at end of each workday. Prevent debris from entering or blocking roof drains and conductors. Use roof-drain plugs specifically designed for this purpose. Remove roof-drain plugs at end of each workday, when no work is taking place, or when rain is forecast.

1. If roof drains are temporarily blocked or unserviceable due to roofing system removal or partial installation of new membrane roofing system, provide alternative drainage method to remove water and eliminate ponding.

2. Do not permit water to enter into or under existing membrane roofing system components that are to remain.

07 01 50.19 - 5

E. Verify that rooftop utilities and service piping have been shut off before beginning the Work.

3.2 ROOF TEAR-OFF

A. General: Notify Owner each day of extent of roof tear-off proposed for that day and obtain authorization to proceed.

B. Remove loose aggregate from aggregate-surfaced built-up bituminous roofing using a power broom.

C. Remove pavers and accessories from roofing membrane.

D. Roof Tear-Off: Remove existing roofing membrane and other membrane roofing system components down to the deck.

E. Partial Roof Tear-Off: Where indicated, remove existing roofing membrane and other membrane roofing system components down to the deck.

F. Partial Roof Tear-Off: Remove existing roofing membrane and immediately check for presence of moisture by visually observing

1. Coordinate with Owner's inspector to schedule times for tests and inspections immediately after membrane removal.

2. Remove wet or damp boards and roof insulation. Removal will be paid for by adjusting the Contract Sum according to unit prices included in the Contract Documents.

3.3 DECK PREPARATION

A. Inspect deck after tear-off or partial tear-off of membrane roofing system.

B. Verify that concrete substrate is visibly dry and free of moisture.

Test for capillary moisture by plastic sheet method according to ASTM D

4263. Do not proceed with roofing work if moisture condenses under the plastic sheet.

C. If broken or loose fasteners that secure deck panels to one another or to structure are observed or if deck appears or feels inadequately attached, immediately notify Owner. Do not proceed with installation until directed by Owner.

D. If deck surface is not suitable for receiving new roofing or if structural integrity of deck is suspect, immediately notify Owner. Do not proceed with installation until directed by Owner.

3.4 INFILL MATERIALS INSTALLATION

A. Immediately after removal of selected portions of existing membrane roofing system, and inspection and repair, if needed, of deck, fill in the tear-off areas to match existing membrane roofing system construction.

07 01 50.19 - 6

1. Install new roofing membrane patch over roof infill area. If new roofing membrane is installed the same day tear-off is made, roofing membrane patch is not required.

3.7 EXISTING BASE FLASHINGS

A. Remove existing base flashings around parapets, curbs, walls, and penetrations.

1. Clean substrates of contaminants such as asphalt, sheet materials, dirt, and debris.

B. Do not damage metal counterflashings that are to remain. Replace metal counterflashings damaged during removal with counterflashings specified in Section 07 60 00 SHEET METAL FLASHING AND TRIM.

3.9 RECOVER BOARD INSTALLATION

A. Install recover boards over //roof insulation// //roofing membrane// with long joints in continuous straight lines and end joints staggered between rows. Loosely butt recover boards together and fasten to deck.

1. Fasten recover boards to resist wind-uplift pressure at corners, perimeter, and field of roof specified in Section 00 00 00 //Insert

Section number and title//.

2. Install additional fasteners near board corners and edges as necessary to conform boards to substrate and to adjacent boards.

3.10 DISPOSAL

A. Collect demolished materials and place in containers. Promptly dispose of demolished materials. Do not allow demolished materials to accumulate on-site.

1. Storage or sale of demolished items or materials on-site is not permitted.

B. Transport and legally dispose of demolished materials off Owner's property.

END OF SECTION

STYRENE-BUTADIENE-STYRENE (SBS) MODIFIED BITUMINOUS MEMBRANE

ROOFING, COLD-APPLIED

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SECTION 075216

STYRENE-BUTADIENE-STYRENE (SBS) MODIFIED BITUMINOUS MEMBRANE ROOFING, COLD-

APPLIED

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Hybrid Styrene-butadiene-styrene (SBS) modified bituminous membrane roofing system on concrete including but not limited to:

a. Removal and legal disposal of indicated asbestos containing materials, roof membranes, insulations and flashings down to deck.

b. Tapered ISO Insulation system ¼” slope adhered in foam to concrete deck.

c. ½” Secure Rock gypsum cover board adhered in foam over ISO taper.

d. Two coated trilaminate reinforced base plies adhered in cold process adhesive.

e. Granulated, SBS glass-reinforced modified bitumen cap sheet adhered in cold process adhesive.

f. Manufacturer’s approved base flashings, cold applied.

g. Walkway pads at areas indicated.

h. Metal flashing components and miscellaneous accessories as required.

B. Related Sections:

1. Division 6 Section "Miscellaneous Carpentry" for wood nailers, curbs, and blocking.

2. Division 7 Section "Sheet Metal Flashing and Trim" for custom metal roof penetration flashings, flashings, and counterflashings.

3. Division 07 Section "Roof Specialties" for manufactured copings, roof edge flashings, roof edge drainage systems, counterflashings, and reglets.

4. Division 07 Section "Joint Sealants" for joint sealants, joint fillers, and joint preparation.

1.3 DEFINITIONS

A. Roofing Terminology: See ASTM D 1079 and glossary of NRCA's "The NRCA Roofing and Waterproofing Manual" for definition of terms related to roofing work in this Section.

1.4 PERFORMANCE REQUIREMENTS

A. General Performance: Installed membrane roofing and base flashings shall withstand specified uplift pressures, thermally induced movement, and exposure to weather without failure due to defective manufacture, fabrication, installation, or other defects in construction. Membrane roofing and base flashings shall remain watertight.

B. Material Compatibility: Provide roofing materials that are compatible with one another under conditions of service and application required, as demonstrated by membrane roofing manufacturer based on testing and field experience.

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C. Roofing Membrane Load-Strain Properties

1. Provide a roofing membrane identical to component systems that have been successfully tested by a qualified independent testing and inspecting agency to meet the following minimum load-strain properties at membrane failure when tested according to

ASTM D 2523:

a. Tensile strain at failure, at 0 deg F: 650 lbf/machine direction, minimum; 4.00 percent elongation at break.

b. Tensile strain at failure, at 0 deg F: 525 lbf/cross-machine direction, minimum;

4.20 percent elongation at break.

D. FM Approvals Listing: Provide membrane roofing, base flashings, and component materials that comply with requirements in FM Approvals 4470 as part of a membrane roofing system.

Identify materials with FM Approvals markings.

1. Fire/Windstorm Classification: Class 1A-90.

E. Flashings and Fastening: Comply with requirements of Division 07 Sections “Sheet Metal Flashing and Trim” and “Roof Specialties.” Provide base flashings, perimeter flashings, detail flashings and component materials and installation techniques that comply with requirements and recommendations of the following:

1. FMG 1-49: Loss Prevention Data Sheet for Perimeter Flashings.

2. NRCA Roofing and Waterproofing Manual (Fifth Edition) for construction details and recommendations.

3. SMACNA Architectural Sheet Metal Manual (Fifth Edition) for construction details.

4. The metal edge securement, except gutter, shall be installed as tested in accordance with the most current version of the ANSI\SPRI ES-1, American National Standard for Edge Systems Used with Low-Slope Roofing Systems.

1.5 SUBMITTALS

A. Shop Drawings:

B. Samples for Verification: For the following products:

1. 8-by-10-inch sample of trilaminate base plies.

2. 8-by-10-inch of sample granulated cap sheet.

3. 8-by-10-inch sample of flashing sheet and backer sheet.

4. 4-by-4-inch of cover board.

C. Installer Certificates: Signed by roofing system manufacturer certifying that Installer is approved, authorized, or licensed by manufacturer to install roofing system.

D. Manufacturer Certificates: Signed by roofing manufacturer certifying that built-up roofing complies with requirements specified in "Performance Requirements" Article.

1. Submit evidence of compliance with roofing load strain performance requirements, including a third party engineering certification that submitted cold applied built-up roofing membrane complies with ASTM D 2523 (Standard Practice for Testing Load Strain Properties of Roofing Membranes).

E. Qualification Data: For manufacturer’s technical representative.

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F. Warranties: Sample of warranties as specified in this Section.

1.6 QUALITY ASSURANCE

A. Installer Qualifications: Engage an experienced installer to perform Work of this Section who has specialized in installing cold process roofing systems; who is approved, authorized, or licensed by the roofing system manufacturer to install manufacturer’s product; and who is eligible to receive and issue the standard roofing manufacturer’s warranty. Installing contractor shall not own, shall not be owned by, or shall not be a subsidiary of or with, the roofing materials manufacturer.

B. Manufacturer Qualifications: An FM Approved manufacturer shall demonstrate a minimum

(10) ten-year track record of successful production and application of cold process roofing systems. Include names and addresses of architects and owners, and other information as needed.

C. Installing contractor shall not own the roofing materials manufacturer, shall not be owned by the roofing materials manufacturer, and shall not be a subsidiary of or with the roofing materials manufacturer.

D. Inspection Reports: Provide copies of the roofing system manufacturer’s inspection reports noted during and at the completion of the new roof installation. Manufacturer’s Technical (non-sales) Representative must inspect roof installation every other day and report progress to Owner’s representative. Provide progress photos for application of each operation of roofing system. In addition to regular inspections, Manufacturer’s Technical (non-sales) Representative shall be present for roof work starts at each section. Manufacturer’s Technical Representative shall provide proof of no less than 10 years experience in the Roofing Industry.

Roofing Inspector Qualifications: A full time technical representative of manufacturer (non-sales) expe-rienced in the installation and maintenance of the specified roofing system, qualified to perform roofing observation and inspection specified in Field Quality Control Article, to determine Installer’s compliance with the requirements of this Project, and approved by the manufacturer to issue warranty certification.

The Roofing Inspector shall be one of the following:

a. An authorized full-time technical employee of the manufacturer with 10 years experience in commercial roofing.

b. Shall be experienced in the installation and maintenance of the specified roofing system and qualified to determine Installer’s compliance with the requirements of this Project.

E. Provide installer's field supervision. Installer must maintain full-time supervisor/foreman on job-site during times that roofing work is in progress. Supervisor must have a minimum of 5 years experience in roofing work similar to nature and scope of specified roofing.

F. Source Limitations: Obtain roofing system components from or approved in writing by roofing system manufacturer.

G. Fire-Test-Response Characteristics: Provide roofing materials with the fire-test-response characteristics indicated as determined by testing identical products per test method below by UL, FMG, or another testing and inspecting agency acceptable to authorities having jurisdiction.

Materials shall be identified with appropriate markings of applicable testing and inspecting agency.

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1. Exterior Fire Test Exposure: Class A; ASTM E 108, for application and roof slopes indicated.

2. Fire-Resistance Ratings: ASTM E 119, for fire-resistance-rated roof assemblies of which roofing system is a part.

H. Pre-Bid Roofing Conference: Conduct conference at Project site.

I. Pre-installation Roofing Conference: Conduct conference at Project site.

1. Meet with Owner, Architect, Owner's insurer if applicable, testing and inspecting agency representative, roofing Installer, roofing system manufacturer's representative, deck Installer, and installers whose work interfaces with or affects roofing, including installers of roof accessories and roof-mounted equipment.

2. Review methods and procedures related to roofing installation, including manufacturer's written instructions.

3. Review and finalize construction schedule and verify availability of materials, Installer's personnel, equipment, and facilities needed to make progress and avoid delays.

4. Examine deck substrate conditions and finishes for compliance with requirements, including flatness and fastening.

5. Review structural loading limitations of roof deck during and after roofing.

6. Review base flashings, special roofing details, roof drainage, roof penetrations, equipment curbs, and condition of other construction that will affect roofing system.

7. Review governing regulations and requirements for insurance and certificates if applicable.

8. Review temporary protection requirements for roofing system during and after installation.

9. Review roof observation and repair procedures after roofing installation.

1.7 DELIVERY, STORAGE, AND HANDLING

A. Deliver roofing materials to Project site in original containers with seals unbroken and labeled with manufacturer's name, product brand name and type, date of manufacture, approval or listing agency markings, and directions for storing and mixing with other components.

B. Store liquid materials in their original undamaged containers in a clean, dry, protected location and within the temperature range required by roofing system manufacturer. Protect stored liquid material from direct sunlight.

1. Discard and legally dispose of liquid material that cannot be applied within its stated shelf life.

C. Protect roof insulation materials from physical damage and from deterioration by sunlight, moisture, soiling, and other sources. Store in a dry location. Comply with insulation manufacturer's written instructions for handling, storing, and protecting during installation.

D. Do not leave unused felts and other sheet materials on the roof overnight or when roofing work is not in progress unless protected from weather and moisture and unless maintained at a temperature exceeding 50 deg F.

E. Contractor is responsible for the safekeeping of materials stored onsite.

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1.8 PROJECT CONDITIONS

A. Weather Limitations: Proceed with installation only when existing and forecasted weather conditions permit roofing system to be installed according to manufacturer's written instructions and warranty requirements.

B. Prevent dust, vapors, gases, and odors from entering into the building during roof installation.

When shutting down or blocking air intakes, provide makeup air or additional intake air from sources away from the work area. Coordinate these procedures with owner’s Representative.

1.9 WARRANTY

A. Manufacturer’s Roofing Warranty: Submit a written warranty, signed by the roofing system manufacturer agreeing to promptly repair any leaks in the roof membrane system resulting from defects in materials or workmanship including, but not limited to, roof plies and adhesive, base flashings, roof insulations and adhesives, wood components, fasteners, and all roof system metal components for the indicated warranty period.

1. Manufacturer’s 20-Year Systems Warranty.

2. Indicate a wind speed warranty of 74 M.P.H., as reported by the certified weather reporting station nearest to the site. Provide a sample copy of standard roofing manufacturer’s warranty, stating obligations, remedies, limitations, and exclusions of warranty.

3. BIDDERS TO PROVIDE COPY OF MANUFACTURER’S WARRANTY WITH

BID PACKAGE.

4. Warranty shall run for a continuous 20 years.

5. Warranty will not be accepted that contains any requirement(s) for Owner to renew the warranty at any time during the 20 year period.

6. Upon successful completion of the work and prior to receipt of final payment, the manufacturer’s warranty as stated above shall be issued to the Owner.

1.10 WARRANTY

A. Warranty -which includes a TWO (2)-YEAR CONTRACTOR COVERAGE.

1. New Roof Component Coverage: A single manufacturer shall provide specified warranty and maintenance agreement. The manufacturer's warranty must include labor and material coverage against leakage on all components including those manufactured by others.