27-0019 389 Main Street Roof Replacement.pdf

TOWN OF WEST SPRINGFIELD

INVITATION FOR BIDS

CONTRACT AGREEMENT

FOR

IFB # 27-0019

389 MAIN STREET ROOF REPLACEMENT

INVITATION FOR BID

IFB # 27-0019

389 MAIN STREET ROOF REPLACEMENT

Number

Title of Pages

LEGAL ADVERTISEMENT 2

IFB REQUIREMENT SUMMARY 1

GENERAL INFORMATION AND BID SUBMISSION REQUIREMENTS 5

SCOPE OF SERVICE 4

TECHNICAL SPECIFICATIONS 29

QUALIFICATIONS OF CONTRACTORS 1

RESPONSIBILITIES OF CONTRACTORS 1

EVALUATION FORM 1

ADDITIONAL CONTRACT TERMS AND CONDITIONS 1

BID FORM 3

BIDDER INFORMATION 1

LABOR HARMONY AND OSHA TRAINING CERTIFICATION 1

CERTIFICATE OF NON-COLLUSION 1

TAX COMPLIANCE CERTIFICATION 1

CERTIFICATE OF COMPLIANCE - PREVAILING WAGE LAW 1

DEBARMENT DISCLOSURE FORM 1

BID SIGNATURE PAGE (Individual) 1

BID SIGNATURE PAGE (Partnership) 1

BID SIGNATURE PAGE (Corporation) 1

APPENDICES

APPENDIX A: CONTRACT & GENERAL CONDITIONS

APPENDIX B: PREVAILING WAGE RATES

APPENDIX C: DRAWINGS

Town of West Springfield

Jaime Flores 26 Central Street, Suite 32 Procurement Administrator West Springfield, MA 01089

(413) 495-1732 | jflores@tows.org

LEGAL ADVERTISEMENT

INVITATION FOR BID

389 MAIN STREET ROOF REPLACEMENT (IFB # 27-0019)

The Town of West Springfield, through its Central Maintenance Department, is seeking sealed bids from qualified contractors to replace the roof at 389 Main Street, West Springfield, MA. Work includes removal of the existing roof system to the deck, installation of R30 tapered polyisocyanurate insulation system, recovery board and 2-ply modified bitumen roofing system to all specified roofing sections. The project has a budget of $125,000.00.

All bids for this project are subject to the provisions of M.G.L. Chapter 149. Minimum Wage Rates as determined by the Commissioner of the Department of Labor and Industries under the provision of the

Massachusetts General Laws, Chapter 149, Sections 26 to 27H, as amended, apply to this project.

Specifications may be obtained from:

https://www.townofwestspringfield.org/government/departments/finance/procurement-bids

There will be a pre-bid walkthrough on October 8, 2026 at 8:00 AM. All interested parties should meet at 389 Main Street, West Springfield, MA 01089

Any questions concerning this IFB must be sent in writing by 4:00 PM on October 14, 2026 to Jaime

Flores, Procurement Administrator at jflores@tows.org.

All Bids shall be sealed, marked “IFB# 27-0019 389 Main Street Roof Replacement” and endorsed with the name and business address of the bidder and addressed to: Jaime Flores, Procurement

Administrator, 26 Central Street, Suite 32, West Springfield, MA 01089. Sealed bids will be received in the Law Department until 9:00 AM, local time, on October 22, 2026.

There is also a special mailbox set up in the lobby of the Town Hall labeled “bids” for bidders who wish to physically drop off their bids. All electronic bids can be submitted at https://www.bidnetdirect.com/massachusetts/townofwestspringfield

All work shall be completed by April 30, 2027. A $500/day penalty charge will be assessed if the contractor does not meet the specified final completion date.

https://www.townofwestspringfield.org/government/departments/finance/procurement-bids mailto:jflores@tows.org

Each bid must be accompanied by a Bid Bond from a licensed surety company, or a Certified check, or a

Treasurer’s or Cashier’s check in the amount of five (5%) percent of the base bid payable to the Town of

West Springfield.

A Payment bond in the amount of 50% of the Contract Price will be required of the Successful Bidder.

The successful bidder will also be required to furnish workmen’s compensation insurance and public liability insurance.

This contract will be awarded only to a responsive and responsible bidder whose bid meets all of the requirements in the specifications. The contract shall be awarded by the Chief Procurement Officer, which reserves the right to waive any informalities, to accept or reject, in part or in whole, any and all proposals or to take whatever action may be deemed to be in the best interest of the Town of West

Springfield. Bids will remain firm for sixty (60) days following the opening of proposals.

IFB REQUIREMENT SUMMARY

Bid Title 389 Main Street Roof Replacement

Bid Number 27-0019

Release Date September 23, 2026

Pre-Bid Conference October 8, 2026 at 8:00 AM

Questions Due October 14, 2026 by 4:00 PM

Bids Due October 22, 2026 at 9:00 AM

REQUIRED SUBMITTALS

Bid Deposit

Reference List

Bid Form

Bidder Information

Labor Harmony & OSHA Training Certification

Certificate of Non-Collusion

Tax Compliance Certificate

Certificate of Compliance - Prevailing Wage Law

Debarment Disclosure Form

Applicable Signature Page

Acknowledgement of Addendum (if applicable)

I. GENERAL INFORMATION AND BID SUBMISSION REQUIREMENTS

A. Pre-Bid Conference

There will be a pre-bid walkthrough October 8, 2026 at 8:00 AM. Interested parties should meet at 389 Main Street, West Springfield, MA 01089.

B. Questions from Prospective Proposers

Questions concerning this Invitation for Bid must be submitted in writing to: Town of

West Springfield Attn: Jaime Flores, 26 Central St, Suite 32, West Springfield, MA 01089 or jflores@tows.org before 4:00 PM, October 14, 2026. Questions may be delivered, mailed or emailed. Written responses will be emailed to all proposers on record as registering for the IFB.

C. Addenda

If any changes are made to this IFB, an addendum will be issued. Addenda will be emailed to all proposers on record as registering for the IFB. Addenda will also be posted to the Town’s Website and Bidnetdirect.

D. Time and Date Bids Must be Delivered

Sealed bids will be received in the Legal Department until 9:00 AM, local time, on

October 22, 2026. NO BIDS WILL BE ACCEPTED AFTER THE TIME AND DATE SPECIFIED.

All hard copy bids shall be sealed and addressed to: Jaime Flores, Procurement

Administrator, Town of West Springfield, 26 Central Street, Suite 32, West Springfield, MA 01089.

SPECIAL INSTRUCTIONS FOR BID PACKAGE DELIVERIES: If the proposal is to be dropped off in person, it may be left in the bid box in the lobby of Town Hall or delivered to the

Legal Department on the third floor. Please leave yourself ample time before the deadline time to deliver your proposal

All electronic bid submittals (preferred) can be submitted through Bidnet Direct at

Do not submit an electronic and hard copy proposal.

E. Number of Copies of the Proposal Required

The bidder shall submit one (1) original copy of their bid.

F. Bid Envelope

The sealed bid envelope should be marked: "IFB #27-0019: 389 Main Street Roof

Replacement" and endorsed with the name and business address of the bidder:

1. A bid by an individual shall show his name and official address.

mailto:jflores@tows.org

2. A bid by a partnership must be executed in the partnership name and signed by a partner accompanied by evidence of authority to sign. His title must appear under this signature and the official address of the partnership shall be shown.

3. A bid by a corporation must be executed in the corporate name by an officer of the corporation and must be accompanied by a certified copy of a resolution of the board of directors authorizing the person signing the Quote to do so on behalf of the corporation. The corporate seal shall be affixed and attested to by the secretary. The state of incorporation and the official corporate address shall be shown.

G. Bids Must Be Signed By Authorized Individuals

All bids must contain the bid signature page. Faxed proposals will not be considered. A proposal must be signed as follows:

1. If the bidder is an individual, by him/her personally;

2. If the bidder is a partnership, by the name of the partnership, followed by the signature of each general partner; or

3. If the bidder is a corporation, by the authorized officer, whose signature must be attested to by the Clerk/Secretary of the corporation and the corporate seal affixed.

H. Maximum Time for Proposal Acceptance

The contract will be awarded within thirty (30) days after the proposal opening. The time for award may be extended for up to thirty (30) additional days by mutual agreement between the Town and the responsive and responsible proposer offering the most advantageous proposal as determined by the chief procurement officer.

I. Modifying or Withdrawing Bids

A bidder may correct, modify, or withdraw a bid by written notice received by the Town prior to the time and date set for the bid opening. Bid modifications must be submitted in a sealed envelope clearly labeled "Modification No. __." Each modification must be numbered in sequence, and must reference the original IFB. After the bid opening, a bidder may not change any provision of the bid in a manner prejudicial to the interests of the Town or fair competition. Minor informalities will be waived or the bidder will be allowed to correct them. If a mistake and the intended bid are clearly evident on the face of the bid document, the mistake will be corrected to reflect the intended correct bid, and the bidder will be notified in writing; the bidder may not withdraw the bid. A bidder may withdraw a bid if a mistake is clearly evident on the face of the bid document, but the intended correct bid is not similarly evident.

J. Right to Cancel or Reject Bids

The Town may cancel this IFB, or reject in whole or in part any and all bids, if the Town determines that cancellation or rejection serves the best interest of the Town.

K. Bid Prices

All bid prices submitted in response to this IFB must remain firm for sixty (60) days following the bid opening.

L. Unexpected Closures

If, at the time of the scheduled proposal opening, the Municipal Office Building is closed to the public, due inclement weather or another unforeseeable event, the bid opening will be extended until 9:00 AM on the next business day. Bids will be accepted until that date and time.

M. Required Forms

The bid must include

1. Bid Deposit

2. Bid Form

3. Bidder Information

4. References

5. Labor harmony and OSHA training certificate

6. Certificate of Non-Collusion

7. Tax Compliance Certification

8. Certificate of compliance - prevailing wage law

9. Debarment Disclosure Form

10.Applicable Signature Page

11.Acknowledgement of Addendum (if applicable).

N. Bid Deposit

Each bidder shall enclose with the bid an acceptable bid deposit in the amount of 5% of the submitted bid. A bid deposit must be in the form of a certified check or Treasurer’s check issued by a responsible bank, payable to the Town of West Springfield. A bid bond shall be issued by a company licensed to do business in the Commonwealth of

Massachusetts. In the event that the successful bidder fails to execute a contract within ten (10) business days of receipt of notification of bid award, the Awarding Authority shall retain such security as liquidated damages. Unsuccessful bidders’ deposits will be returned within twenty (20) business days following the award to said successful bidder.

O. Contract Securities

A Payment bond in the amount of 50% of the Contract Price will be required of the

Successful Contractor. Payment Bond submitted shall be posted by a recognized surety company having a place of business in the Commonwealth of Massachusetts. All

Payment Bonds signed by an agent must be accompanied by a certified copy of the authority to act. When the Successful Contractor delivers the executed Agreement to the Town, the Agreement shall be accompanied by the required contract securities. The successful contractor will also be required to furnish workmen’s compensation insurance and public liability insurance.

P. Example Contract

An example contract is included in this bid package; this contract is included as a fair representation of the contract under which the Successful proposer will work. Please notice the Contract Agreement incorporates by reference all terms, specifications, and conditions of the proposal. There will be no modifications allowed to the Town’s

Contract.

Q. Contract Execution

When the Town gives a Notice of Award to the Successful Bidder, the successful bidder, within 10 days thereafter, will provide the required bonds and insurance certificate.

Within 10 days thereafter, the Successful Bidder shall sign the Agreement and attached documents to the Town. Within ten days thereafter, the Town shall deliver one fully signed counterpart to the Successful Bidder with a complete set of the Drawings with appropriate identification

R. References

List all contracts held the last 5 years that are similar in size and scope to this project that can be contacted regarding your work . The following information shall be included for each customer listed

1. Customer

2. Contact Name

3. Address

4. Phone Number

5. Email

6. Contract Dates & Amount

7. Brief description of services provided.

S. Change Orders

Change orders are not effective until, if, as and when signed by the Mayor and no work is to commence until the change orders are fully executed.

T. Sales Tax Exemption

Materials and equipment purchased for permanent installation in this project will be exempt from Massachusetts Sale and Use Tax. The exemption certificate number will be furnished to the Contractor. Each bidder shall take exemption into account in calculating their bid for the work.

U. Prevailing Wage Rates

Minimum Wage Rates as determined by the Commissioner of the Department of Labor and Industries under the provision of the Massachusetts General Laws, Chapter 149, Sections 26 to 27H, as amended, apply to this project. Federal Minimum Wage Rates as determined by the United States Department of Labor under the Davis-Bacon Act also apply to this project. The wage rate determination is included in Appendix B.

V. Public Records Notice

All documents and materials submitted in response to this Invitation for Bids (IFB) are subject to the Massachusetts Public Records Law, M.G.L. Chapter 66, Section 10, and

Chapter 4, Section 7, Subsection 26 once the bid has been opened. In accordance with these laws, the Town cannot guarantee the confidentiality of any information submitted by a bidder. By submitting any materials in response to this IFB, the bidder acknowledges and agrees that all such materials are public records and may be disclosed upon request. Any attempt by a bidder to designate submitted materials as confidential, proprietary, or otherwise protected from disclosure will be void and disregarded.

Bidders submit materials at their own risk and should not include any information they consider confidential or exempt from public disclosure.

II. SCOPE OF SERVICE

A. Scope

Removal of the existing roof system to the deck, installation of R30 tapered polyisocyanurate insulation system, recovery board and 2-ply modified bitumen roofing system to all specified roofing sections

B. Work included

1. Roof Replacement

a) Remove all roof systems and insulation down to decking.

b) Remove all flashing material from all vertical surfaces and penetrations.

c) Check all decking for mold penetration and remove where located.

d) Provide all labor, equipment, and materials to install roof insulation over the properly prepared deck substrate.

e) All existing membrane, flashing materials, insulation, shall be removed from the roof surface and properly disposed of. Concrete deck shall be made clean and prepared for application of new roof insulation.

f) Install insulation assembly per these specifications.

g) Install modified base sheet into the specified low-VOC cold-applied modified asphalt. Install modified mineral cap sheet into the specified low-VOC cold-applied modified asphalt.

h) Base flashing system shall be installed at all projections and perimeters using a 2-ply flashing system. The first ply shall be specified base sheet in trowel grade modified cold adhesive. The top flashing ply shall be the specified Modified Bitumen membrane with a polyester-fiberglass scrim set in trowel grade modified cold adhesive.

i) Remove and replace existing gutter system and downspouts. New premanufactured gutter, from membrane manufacturer shall be installed as part of an overall roof system.

j) Miscellaneous flashing, caulking and accessories shall be installed.

k) New metal shall be installed at all projections and perimeter.

l) Provide all labor, equipment, and materials fabricate and install the following: EdgeEdge strip and flashing, Fascia and trim, Counter flashings over bituminous base flashing, Counter flashings for roof accessories, Base flashing coverings, Fascia and edge metal, Lead flashing for bituminous membranes, Other components, Counter flashings at roof mounted equipment and vent stacks

2. Clean up and properly dispose of all debris and repair any damage done to grounds, building or roof top.

3. Assembly:

a) Insulation: Base layer of 2.5” polyisocyanurate insulation mechanically attached to the deck using approved #14 fasteners and 3’ metal plates.

Refer to project specifications for wind zone widths and calculations. All subsequent layers of tapered polyisocyanurate insulation (min. thickness

1.5”) to be fully adhered in 2-part insulation adhesive.

b) Coverboard: ½” high density wood fiberboard (ASTM C208) 4’x’4 fully adhered to the insulation in low VOC cold applied adhesive at 2.5 Gal/sq

c) Modified Base Ply: One ply of fiberglass reinforced, 80mm SBS adhered to coverboard in low-VOC cold applied adhesive at 2.5 Gal/sq

d) Modified Cap Sheet: One ply of 145mm SBS & rubber modified membrane adhered to base sheet in low-VOC cold applied adhesive at

2.5 Gal/sq

e) Cant Strip: Install cant strip at all roof to wall or roof to unit transitions to eliminate 90 degree angles

f) Base Flashing Ply: One ply of fiberglass reinforced, 80mm SBS adhered to coverboard in low-VOC cold applied flashing adhesive at 2.5 Gal/sq

g) Modified Flashing Ply: One ply of 145mm SBS & SIS rubber modified membrane adhered to base sheet in low-VOC cold applied flashing adhesive at 2.5 Gal/sq

h) Vertical Flashing Seams: Strip in all vertical flashing seams with three course application of Silver Flash mastic and 6” Garmesh

i) Field Fabricated Metal Edging & Coping: Kynar coated 22 ga. metal field fabricated

C. Project Budget

The budget for this project is $125,000.00

D. Permits and fees

1. Obtain all necessary permits, licenses, and certificates and pay all fees and charges associated therewith.

2. Arrange for all inspections and obtain all necessary approval for the work.

E. Subcontracts

The Bidder is specifically advised that any person, firm, or other party to whom it is proposed to award a subcontract under this contract must be acceptable to the Owner.

F. Contractor's responsibility

1. Contractor is responsible for securing materials

2. Contractor is responsible for addressing all low or areas lacking slope that may cause ponding water

3. Contractor to supply 3-year workmanship warranty.

4. Contractor responsible for obtaining building permit.

G. Layout of work

See drawings

H. Time

All work shall be completed by April 30, 2027. A $500/day penalty charge will be assessed if the contractor does not meet the specified final completion date.

I. Substitute and “Or Equal” Items

The Contract, if awarded, will be on the basis of materials and equipment specified or described in the Bidding Documents without consideration of possible substitute or “or equal” items. Whenever it is specified or described in the Bidding Documents that a substitute or “or equal” item of material or equipment may be furnished or used by the

Contractor if acceptable to the Town, application for such acceptance will not be considered until after the effective date of the Agreement. The procedure for submission of any such application by the Contractor and consideration by the Town is set forth in the General Conditions and may be supplemented in the General Requirements.

J. Material Storage and Clean-Up

1. The Contractor shall keep the premises free from rubbish at all times and shall arrange his/her material storage so as not to interfere with the Owner’s operations. At the completion of the job, all the unused material and rubbish shall be removed from the site. The ground shall be raked clean and the building shall be broom cleaned. If the Contractor refuses at any time to remove his/her debris from the premises, or to keep the working area clean, such cleaning will be completed by the Owner and deducted from the balance due the Contractor.

2. The Contractor shall also remove drippage of bitumen or adhesive from all walls, windows, floors, ladders and finished surfaces. Failure to do so will result in the work being done by others and the cost shall be deducted from the balance due the Contractor.

3. Materials must be delivered with the manufacturer's label intact and legible.

Labels must be affixed to the outside of the package stating the type of product, name and address of the manufacturer. All materials shall be stored and protected against weather, vandalism, and theft. Any materials found to be damaged or missing shall be replaced by the Contractor at no cost to the Owner.

4. Accumulated debris shall be removed periodically to assure maximum safety and sanitation at all times. At completion of work, the Contractor shall remove all excess material and debris from the site and leave all roof surfaces free from accumulations of dirt, debris and other extraneous materials. The Contractor shall also remove any and all drippage of bituminous materials from the face of the buildings, floor, window, ladders and other finished surfaces.

K. Cleaning and Removals

It shall be the responsibility of the contractor to remove all surplus material, cartons, and materials made obsolete by this renovation, and other debris caused by work under this contract, each day from the site.

L. Guarantee warranty

The contractor shall and hereby does warrant that all work executed and all equipment furnished under this contract shall be free from defects of workmanship and materials for a period of three (3) years. All manufacturers’ warranties shall be honored to their extent.

III. TECHNICAL SPECIFICATIONS

389 Main Street Roof Replacement

Town of West Springfield

West Springfield, MA

Table of Contents

Number

Section Title of Pages

06 10 00 Rough Carpentry 2

07 01 55 Preparation for Re-Roofing 2

07 22 00 Roof Deck Insulation 6

07 52 00 Modified Bitumen Built-Up Roofing 12

07 62 00 Flashing and Sheet Metal 6

Table of Contents TOC-1

SECTION 06 10 00

ROUGH CARPENTRY

PART 1 GENERAL

1.1 RELATED DOCUMENTS

A. The provisions of the Contract, The General Conditions, the Supplementary Conditions.

1.2 RELATED SECTIONS

A. Section 07 22 00 - Roof and Deck Insulation

B. Section 07 52 00 - Modified Bitumen Roof Membrane

C. Section 07 01 55 - Preparation for Re-Roofing

D. Section 07 62 00 - Flashing and Sheet Metal

1.3 DELIVERY STORAGE AND HANDLING

A. Time delivery and installation of carpentry work to avoid delaying other trades whose work is dependent on or affected by the carpentry work. Keep materials dry during delivery

B. Store lumber and plywood in stacks with provisions for air circulation within stacks. Protect bottom of stacks against contact with damp or wet surfaces.

C. Protect exposed materials against water and wind. Remove damaged or unsuitable material from the job site.

1.4 QUALITY ASSURANCE

A. Comply with governing codes and regulations. Use experienced installers.

B. Lumber Standards: American Softwood Lumber Standard PS 20-70 by the U.S. Department of Commerce.

C. Plywood Standards: U.S. product Standard PSI-74/ANSI A 199.1 or latest APA Performance

Standards for American Plywood Association.

D. Factory Marking: Mark each piece of lumber or plywood to indicate type, grade, agency providing inspection service.

E. Size and Shape: Dress lumber 4 sides (S4S) and work to shapes and patterns shown.

Nominal sizes shown and specified refer to undressed lumber dimensions. Detailed dimensions show actual lumber size required.

1.5 SCOPE OF WORK

A. Add wood blocking to accommodate new insulation height

PART 2 PRODUCTS

2.1 DIMENSIONAL LUMBER AND PLYWOOD

A. Construction Lumber: Standard Grade Douglas Fir, Western Larch, Western Hemlock

(WWPA or WCLB) or No. 2 dimension Southern Pine (SPIB).

B. Exterior Type Plywood: APA Rated sheathing, EXT.

Rough Carpentry 06 10 00 - 1

C. Bucks, Nailers, Blocking, Etc.: No. 2 common grade of any WWPA or WCLA species or No. 2

Southern Pine (SPIB).

D. Anchorage and Fastenings: Proper type, size material and finish for each application.

E. Quality: Sound, seasoned, well manufactured materials of longest practical lengths and sizes to minimize joints. Free from warp which cannot be easily corrected by anchoring and attachment. Discard material with defects which would impair quality of work.

PART 3 EXECUTION

3.1 EXAMINATION

A. Verify measurements and dimensions shown before proceeding with carpentry work.

B. Examine supporting structure and conditions under which carpentry work is to be installed.

Do not proceed with installation until unsatisfactory conditions have been corrected.

C. Correlate location of nailers, blocking and similar supports for attached work.

D. Scribe and cope as required for accurate fit of carpentry work to other work.

3.2 PROTECTION

A. Protect installed work from damage by other trades until acceptance of work.

3.3 INSTALLATION

A. Provide all nailers, blocking and sleepers where shown on the drawings or required for attachment of other work. Minimum flashing height of eight (8) inches is required.

Coordinate with location with other work involved; refer to shop drawings of such work.

B. Attach to substrate securely as required to support applied loading. Countersink bolts and nuts flush with surfaces.

C. Securely attach wood nailers to substrates in accordance with Factory Mutual Loss

Prevention Data Sheet 1-49 and as required by recognized standards.

D. Provide washers under bolt heads and nuts in contact with wood.

E. Do not wax or lubricate fasteners that depend on friction for holding power.

F. Select fasteners of size that will not penetrate members where opposite side will be exposed to view or will receive finish material.

G. Make tight connections between members. Install fasteners without splitting of wood;

pre-drill as required. Do not drive threaded friction type fasteners; turn into place. Tighten bolts and lag screws at installation and retighten as required for tight connections prior to closing in or at completion of work.

END OF SECTION

Rough Carpentry 06 10 00 - 2

SECTION 07 01 55

PREPARATION FOR RE-ROOFING

1.1 SCOPE OF WORK

A. Remove all roof systems and insulation down to decking.

B. Remove all flashing material from all vertical surfaces and penetrations.

C. Check all decking for mold penetration and remove where located.

1.2 PRE-INSTALLATION CONFERENCE

A. Refer to Section 07 52 00 Modified Bitumen Built-up Roofing

B. Review installation procedures and coordination required with related work.

1.3 ENVIRONMENTAL REQUIREMENTS

A. Do not remove existing roofing system or damaged decking when weather conditions threaten the integrity of the building contents or intended continued occupancy. Maintain continued temporary protection prior to installation of the new roofing system.

B. Contractor must test for presence of asbestos and dispose of it according to current State and Federal regulations that apply.

1.4 PROTECTION

A. It shall be the Contractor’s responsibility to respond immediately to correction of roof leakage during construction. A four (4) hour time limit shall be given from the time of notification of emergency conditions. In the event of water penetration during rain or a storm, the Contractor shall provide for repair or protection of the building contents and interior. The Contractor shall be back charged for all expenses and damages, if any.

1.5 SCHEDULING

A. Schedule work to coincide with commencement of installation of new roofing system.

2.1 MATERIALS

A. Temporary protection; Sheet Polyethylene. Provide weights or fasteners to retain sheeting in position.

B. Base Sheet: ASTM D-4601 Type II. Provide weights or fasteners to retain sheeting in position.

A. Roofing Contractor to verify existing site conditions, including roof dimensions.

B. Verify that existing roof surface is clear and ready for work of the section.

Preparation for Re-Roofing 07 01 55 - 1

3.2 MATERIALS REMOVAL

A. Remove all ballast, membrane, cant strips, base flashings, and any other items shown on the drawings. In addition, completely removal of all nails and other debris to leave a smooth, even surface for re-roofing.

B. Under certain conditions, it will be necessary and desirable to incorporate one or more of the following methods for removal of dirt, silt, gravel, debris, roof membrane, and insulation from the roof surface in order to preserve the ecology, eliminate unsightly conditions, and protect the building surfaces:

1. Chutes or scale pans with protective shrouds on the building and ground surfaces.

C. All debris dumped from the roof shall be transported from the roof via chutes or scale pans into dumpsters or trucks, and this debris shall be removed from the premises and disposed of off site when vehicles are full. Contractor shall be responsible for securing a disposal site for the roofing debris. No debris shall be transported from the area being worked on over a previously finished roof without an underlayment of 3/4" plywood.

D. All roof equipment not in use or left filled will be parked on the column lines on 3/4" plywood.

E. Contractor shall provide cut off (night tie in) at the end of each day's work. Area cut off shall be clean of all existing gravel.

3.3 TEMPORARY PROTECTION

A. Provide temporary protective sheeting over uncovered deck surfaces.

B. Turn sheeting up and over parapets and curbing. Retain sheeting in position with weights or temporary fasteners.

C. Provide for surface drainage from sheeting to existing drainage facilities.

D. Do not permit traffic over unprotected deck surface.

PART 4 MEASUREMENT AND PAYMENT

4.1 GENERAL

A. Separate measurement and payment will not be made for Preparation as described in this

Section, complete in place. All costs therefore shall be included in the Contractor’s Lump

Sum Price.

Preparation for Re-Roofing 07 01 55 - 2

SECTION 07 22 00

ROOF DECK AND INSULATION

1.1 DESCRIPTION

A. Provide all labor, equipment, and materials to install roof insulation over the properly prepared deck substrate.

A. Related work specified elsewhere:

1. Section 06 10 00 - Rough Carpentry

2. Section 07 01 55 - Preparation for Re-roofing.

3. Section 07 52 00 - Modified Built-up Roofing

4. Section 07 62 00 - Flashing and Sheet Metal.

1.3 REFERENCES

A. ASTM A-167-94a - Specification for Stainless and Heat-Resisting Chromium Nickel Steel

Plate, Sheet and Strip

B. ASTM A-653 - Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron

Alloy-Coated (Galvanized) by the Hot-Dip Process

C. ASTM B-29- Pig Lead

D. ASTM B-32- Solder Metal

E. ASTM C-165-95 - Test Method for Measuring Compressive Properties of Thermal Insulation

F. ASTM C-208-95 - Specifications for Cellulosic Fiber Insulating Board

G. ASTM C-209-92 - Test Method for Cellulosic Fiber Insulating Board

H. ASTM C-272-91 - Test Method for Water Absorption of Core Materials for Structural

Sandwich Constructions

I. ASTM C-518-91 - Test Method for Steady-State Heat Flux Measurements and Thermal

Transmission Properties by Means of the Heat Flow Meter Apparatus

J. ASTM D-5 - Test Method for Penetration of Bituminous Materials

K. ASTM D-36 - Test Method for Softening Point of Bitumen (Ring and Ball Apparatus)

L. ASTM D-312 - Specification for Asphalt Used in Roofing

M. ASTM D-412-92 - Test Methods for Vulcanized Rubber and Thermoplastic Rubbers and

Thermoplastic Elastomers-Tension

N. ASTM D-1621-94 - Test Method for Compressive Properties of Rigid Cellular Plastics

O. ASTM D-1622 - Test Method for Apparent Density of Rigid Cellular Plastics

Roof Deck and Insulation 07 22 00 - 1

P. ASTM D-1863 - Specification for Mineral Aggregate Used on Built-Up Roofs

Q. ASTM D-2126-94 - Test Method for Response off Rigid Cellular Plastics to Thermal Humid

Aging

R. ASTM D-2178 - Standard Specification for Asphalt Glass Felts used in Roofing and

Waterproofing

S. ASTM D-4601-94 - Specification for Asphalt-Coated Glass Fiber Base Sheet Used in Roofing

T. ASTM D-5147 - Sampling and Testing Modified Bituminous Sheet Material

U. CISPI - Cast Iron Soil Pipe Institute, Washington, D.C.

V. NRCA - National Roofing Contractors Association, Chicago, IL

W. SMACNA - Sheet Metal and Air Conditioning Contractors National Association

X. SDI - Steel Deck Institute, St. Louis, Missouri

Y. SPIB - Southern Pine Inspection Bureau, Pensacola, Florida

Z. FS HH-I-1972 - Insulation Board, Polyisocyanurate

AA. FS LLL-1-535B - Insulation Board, Thermal (Fiberboard)

1.4 SUBMITTALS

A. Product Data: Provide manufacturer’s specification data sheets for each product.

B. Provide approval letters from insulation manufacturer for use of their insulation within this particular roofing system type.

C. Provide a sample of each insulation type.

D. Certification

1. Submit roof manufacturer’s certification that insulation adhesive furnished is acceptable to roof manufacturer.

2. Submit roof manufacturer’s certification that insulation furnished is acceptable to roofing manufacturer as a component of roofing system and is eligible for roof manufacturer’s system warranty.

1.5 DELIVERY, STORAGE AND HANDLING

A. Deliver products to site with seals and labels intact, in manufacturer's original containers, dry and undamaged.

B. Store all insulation materials in a manner to protect them from the wind, sun and moisture damage prior to and during installation. Any insulation that has been exposed to any moisture shall be removed from the project site.

C. Keep materials enclosed in a water tight, ventilated enclosure (i.e. tarpaulins).

D. Store materials off the ground. Any warped, broken or wet insulation boards shall be removed from the site.

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1.6 QUALITY ASSURANCE

A. Fire Classification, ASTM E-108

B. Submit certification that the roof system furnished meets local or nationally recognized building codes for fire Class A and/or wind resistance.

2.1 APPROVED EQUIVALENT

A. Contractor must submit any product not specified a minimum five days before the bid date to Engineer in order for product to be considered for approval. The Engineer will notify

Contractor in writing of decision to accept or reject request.

2.2 INSULATION MATERIALS

A. Provide thicknesses of insulation as indicated, provide combination of types and thicknesses to provide a complete system.

1. Tapered Polyisocyanurate Roof Insulation

a. Qualities: Rigid, closed cell polyisocyanurate foam core bonded to heavy duty glass fiber mat facers.

1) Thickness minimum: 0.5 in.

2) ¼:12’ slope

3) Board Size: 4’ x 8’

4) R-30 average

b. Insulation board shall meet the following requirements

1) FM listed under Roofing Systems

2) Federal Specification HH-I-1972, Class 1

2. Polyisocyanurate Crickets Roof Insulation

a. Qualities: Rigid, closed cell polyisocyanurate foam core bonded to heavy duty glass fiber mat facers.

1) Thickness minimum: 0.5 in.

2) 1/8”:12’ slope

3) Board Size: 8’ cricket in corners

b. Insulation board shall meet the following requirements

1) FM listed under Roofing Systems

2) Federal Specification HH-I-1972, Class 1

3. Gypsum Board

a. Qualities: Nonstructural glass mat faced, noncombustible, water-resistant treated gypsum core panel.

b. Source

1) Primed Densdeck

2) Securock

3) Approved Equivalent

c. Board Size: Four feet by four feet (4'x4').

d. Thickness: one half (1/2”) inch.

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e. R-Value: .56

f. Compliances: FM listed under Roofing Systems.

2.3 RELATED MATERIALS

A. Fiber Cant and Tapered Edge Strips: Performed rigid insulation units of sizes/shapes indicated, matching insulation board or of perlite or organic fiberboard, as per the approved manufacturer.

1. Acceptable Manufacturers

a. The Garland Company, Inc.

b. Celotex

c. Johns-Manville Roofing Systems

d. International Permalite, Inc.

e. Approved Equivalent

B. Protection Board: Pre-molded semi-rigid asphalt composition board ½ in.

C. Roof Board Joint Tape: 6” wide glass fiber mat with adhesive compatible with insulation board facers.

D. Single component insulation adhesive.

Performance Requirements:

1. Tensile Strength (ASTM D-412-92 ).... 250 psi

2. Density (ASTM D-1875-90) ......…….. 8.5 lbs/gal

3. Viscosity (ASTM D-2556-93a)............. 22,000-60,000 cP

4. Peel Strength (ASTM D-903) ....………17 lb/in

5. Flexibility (ASTM D-816-12) ....……... Pass @ -70°F

3.1 INSPECTION OF SURFACES

A. Roofing contractor shall be responsible for preparing an adequate substrate to receive insulation.

1. Verify that work which penetrates roof deck has been completed.

2. Verify that wood nailers are properly and securely installed.

3. Examine surfaces for defects, rough spots, ridges, depressions, foreign material, moisture, and unevenness.

4. Do not proceed until defects are corrected.

5. Do not apply insulation until substrate is sufficiently dry.

6. Broom clean substrate immediately prior to application.

7. Use additional insulation to fill depressions and low spots that would otherwise cause ponding water.

8. Verify that temporary roof has been completed.

3.2 INSTALLATION

A. Primed Gypsum Board Mechanical Attachment

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1. Staggering the seams, approved recovery board shall be installed over base insulation.

2. The fastener will be an OMG Heavy Duty Roofing Fastener with a shank diameter of

.190 and a thread diameter of .245. The fastener must have 10 threads per inch and have a 30° spade point. Also, the fastener must be heat treated per specification

OMG-1. The OMG Heavy Duty Roofing Fastener will be used with a Factory Mutual, OMG round 3" Galvalume pressure plate to attach insulation to the substrate. The fastener must be Factory Mutual approved and made in America.

3. Filler pieces of insulation require at least two fasteners per piece if size of insulation is less than four square feet.

4. Zones will be ten {10} feet in with spacing pattern of fasteners per attached sheet:

a. Zone 1 – minimum 17 fasteners per board

b. Zone 2 – minimum 24 fasteners per board

c. Zone 3 – minimum 32 fasteners per board

d. Edge Zone Width = 10’

5. Minimum penetration into deck shall be as recommended by the fastener manufacturer. There is a one (1) inch minimum for metal, wood and structural concrete decks where not specified by the manufacturer.

6. Install approved vapor barrier by manufacturer.

B. Polyisocyanurate Assembly Attachment with Insulation Adhesive.

1. Approved Polyisocyanurate insulation board shall be installed over clean substrate in insulation adhesive. Do not allow the adhesive to skin over. Briefly step each board into place to ensure contact with the adhesive.

2. Applying adhesive directly to the substrate in a ribbon pattern in 1/2" to 3/4" beads, using either the pail or an automatic applicator achieve proper coverage rates:

a. Zone 1 - 12" OC in ribbon pattern per 4' x 4' board of insulation

b. Zone 2 - 9" OC in ribbon pattern per 4' x 4' board of insulation

c. Zone 3 - 6" OC in ribbon pattern per 4' x 4' board of insulation

d. Edge Zone = 8’

3. All boards shall be cut and fitted where the roof deck intersects a vertical surface.

The boards shall be cut to fit a minimum of ¼” away from the vertical surface.

C. Taper Polyisocyanurate Assembly Attachment with Insulation Adhesive.

1. Approved Polyisocyanurate insulation board shall be installed over clean substrate in insulation adhesive. Do not allow the adhesive to skin over. Briefly step each board into place to ensure contact with the adhesive.

2. Applying adhesive directly to the substrate in a ribbon pattern in 1/2" to 3/4" beads, using either the pail or an automatic applicator achieve proper coverage rates:

a. Zone 1 - 12" OC in ribbon pattern per 4' x 4' board of insulation

b. Zone 2 - 9" OC in ribbon pattern per 4' x 4' board of insulation

c. Zone 3 - 6" OC in ribbon pattern per 4' x 4' board of insulation

d. Edge Zone = 8’

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3. All boards shall be cut and fitted where the roof deck intersects a vertical surface.

The boards shall be cut to fit a minimum of ¼” away from the vertical surface.

D. Primed Gypsum Board with Insulation Adhesive.

1. Staggering the seams, approved recovery board ½” thickness shall be installed over base insulation in insulation adhesive. Do not allow the adhesive to skin over. Briefly step each board into place to ensure contact with the adhesive.

2. Applying adhesive directly to the substrate in a ribbon pattern in 1/2" to 3/4" beads, using either the pail or an automatic applicator achieve proper coverage rates:

a. Zone 1 - 12" OC in ribbon pattern per 4' x 4' board of insulation

b. Zone 2 - 9" OC in ribbon pattern per 4' x 4' board of insulation

c. Zone 3 - 6" OC in ribbon pattern per 4' x 4' board of insulation

d. Edge Zone = 8’

3. All boards shall be cut and fitted where the roof deck intersects a vertical surface.

The boards shall be cut to fit a minimum of ¼” away from the vertical surface.

3.3 CLEANING

A. Remove debris and cartons from roof deck. Leave insulation clean and dry, ready to receive roofing membrane.

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SECTION 07 52 00

MODIFIED BITUMEN BUILT-UP ROOFING

PART 1 GENERAL

1.1 SCOPE OF WORK

A. Furnish all labor, materials, equipment and related services needed and install new roof insulation, Modified Bitumen High-Performance Built-up roof system in cold process, fascia and flashing, miscellaneous caulking and damproofing necessary to satisfactorily complete the entire work.

1.2 DESCRIPTION

A. All existing membrane, flashing materials, insulation, shall be removed from the roof surface and properly disposed of. Concrete deck shall be made clean and prepared for application of new roof insulation.

B. Install insulation assembly per these specifications.

C. Install modified base sheet into the specified zero VOC cold applied modified asphalt. Install modified mineral cap sheet into the specified zero VOC cold applied modified asphalt.

D. Base flashing system shall be installed at all projections and perimeters using a 2-ply flashing system. The first ply shall be specified base sheet in trowel grade modified cold adhesive. The top flashing ply shall be the specified Modified Bitumen membrane with a polyester-fiberglass scrim set in trowel grade modified cold adhesive.

E. Remove and replace existing gutter system and downspouts. New premanufactured gutter, from membrane manufacturer shall be installed as part of an overall roof system.

F. Miscellaneous flashing, caulking and accessories shall be installed.

G. New metal shall be installed at all projections and perimeter.

1.3 RELATED SECTION

A. Section 06 10 00 – Rough Carpentry

B. Section 07 01 55 - Preparation for Re-roofing.

C. Section 07 22 00 - Roof and Deck Insulation.

D. Section 07 62 00 - Flashing and Sheet Metal.

1.4 REFERENCES

A. American Society of Civil Engineers (ASCE):

1. ASCE 7-98, Minimum Design Loads for Buildings and Other Structures.

B. American Society for Testing and materials (ASTM):

1. ASTM D41-94, Specification for Asphalt Primer Used in Roofing, Dampproofing and

Waterproofing.

2. ASTM D312-00, Specification for Asphalt Used in Roofing.

3. ASTM D451-91, Test Method for Sieve Analysis of Granular Mineral Surfacing for

Asphalt Roofing Products.

4. ASTM D1079-01, Terminology Relating to Roofing, Waterproofing and Bituminous

Materials.

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5. ASTM D1227-95, Specification for Emulsified Asphalt Used as a Protective Coating for

Roofing.

6. ASTM D1863-93, Specification for Mineral Aggregate Used as a Protective Coating for

Roofing.

7. ASTM D2178-97a, Specification for Asphalt Glass Felt Used as a Protective Coating for

Roofing.

8. ASTM D2822-91, Specification for Asphalt Roof Cement.

9. ASTM D2824-02, Specification for Aluminum-Pigmented Asphalt Roof Coating.

10. ASTM D4601-98, Specification for Asphalt Coated Glass Fiber Base Sheet Used in

Roofing.

11. ASTM D5147-01a, Test Method for Sampling and Testing Modified Bituminous Sheet

Materials.

12. ASTM D6162-0a, Specification for Styrene Butadiene Styrene (SBS) Modified

Bituminous Sheet Materials Using a Combination of Polyester and Glass Fiber

Reinforcements.

13. ASTM D6163-00, Specification for Styrene Butadiene Styrene (SBS) Modified

Bituminous Sheet Materials Using Glass Fiber Reinforcements.

14. ASTM E108-00, Test Methods for Fire Test of Roof Coverings.

C. National Roofing Contractors Association (NRCA):

1. Roofing and Waterproofing Manual

1.5 SYSTEM DESCRIPTION

A. It is the intent of this specification to install a long-term, quality roof system that meets or exceeds all current NRCA guidelines as stated in the most recent edition of the NRCA

Roofing and Waterproofing Manual.

1.6 SUBMITTALS

A. Product Data: Provide manufacturer’s technical product data for each type of roofing product specified. Include data substantiating that materials comply with specified requirements.

B. Samples: Submit two (2) samples of each product specified.

C. Manufacturers approval of tapered insulation assembly.

D. Shop Drawings showing layout of tapered insulation design, roof dimensions and provide details, for flashings, drains, edge treatments, counter flashings and any other detail required on the roof. Shop Drawings shall be submitted by the membrane manufacture.

E. Manufacturer’s Certificate: Certify that roof system furnished is approved by Factory Mutual in accordance with ASTM E108, Class [A] for external fire and meets local or nationally recognized building codes.

F. Manufacturer’s Certificate: Certify that materials are manufactured in the United States and conform to requirements specified herein, are chemically and physically compatible with each other, and are suitable for inclusion within the total roof system specified herein.

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G. Manufacturer’s Certificate: Submit a certified copy of the roofing manufacturer’s ISO 9001 compliance certificate.

H. Test Reports: Submit test reports, prepared by an independent testing agency, for all modified bituminous sheet roofing, indicating compliance with ASTM D5147.

I. Submit a copy of an unexecuted manufacturer’s 20–year single source warranty for review.

This warranty shall cover wind speeds up to 90 mph.

J. Manufacturer providing warranty will include a list of ten (10) completed projects of similar scope and complexity with contact information for reference within a 50 mile distance.

Jobsite observation included.

1.7 QUALIFICATIONS

A. Manufacturer of the modified bitumen roof membrane shall have a minimum [10] years experience in the manufacturing of modified bitumen roof membranes and have ISO 9001 certification.

B. Installer: Company specializing in modified bituminous roofing installation with a minimum

[5] years experience and certified by roofing system manufacturer as qualified to install manufacturer’s roofing materials.

C. Installer’s Field Supervision: Maintain a full-time Supervisor/Foreman on job site during all phases of roofing work and at any time roofing work is in progress. Maintain proper supervision of workmen. Maintain a copy of the specifications in the possession of the

Supervisor/Foremen and on the roof at all times.

D. Immediately corrects roof leakage during construction. If the Contractor does not respond within twenty four (24) hours, the Owner has the right to hire a qualified contractor and back-charge the original contractor.

E. Insurance Certification: Assist Owner in preparation and submittal of roof installation acceptance certification as may be necessary in connection with fire and extended coverage insurance on roofing and associated work.

1.8 PRE-INSTALLATION CONFERENCE

A. Pre-Roofing Conference: Convene a pre-roofing conference approximately two (2) weeks before scheduled commencement of modified bituminous roofing system installation and associated work.

B. Require attendance of installer of each component of associated work, installers of deck or substrate construction to receive roofing work, installers of rooftop units and other work in and around roofing which must precede or follow roofing work (including mechanical work if any), Architect, Owner, roofing system manufacturer’s representative, and other representatives directly concerned with performance of the Work, including (where applicable) Owner’s insurers, testing agencies and governing authorities.

C. Objectives of conference to include:

1. Review foreseeable methods and procedures related to roofing work.

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2. Tour representative areas of roofing substrates (decks), inspect and discuss condition of substrate, roof drains, curbs, penetrations and other preparatory work performed by others.

3. Review structural loading limitations of deck and inspect deck for loss of flatness and for required attachment.

4. Review roofing system requirements (drawings, specifications and other contract documents).

5. Review required submittals both completed and yet to be completed.

6. Review and finalize construction schedule related to roofing work and verify availability of materials, installer’s personnel, equipment and facilities needed to make progress and avoid delays.

7. Review required inspection, testing, certifying and material usage accounting procedures.

8. Review weather and forecasted weather conditions and procedures for inclement conditions.

9. Record discussion of conference including decisions and agreements (or disagreements) reached and furnish copy of record to each party attending. If substantial disagreements exist at conclusion of conference, determine how disagreements will be resolved and set date for reconvening conference.

10. Review notification procedures for weather or non-working days.

1.9 DELIVERY, STORAGE AND HANDLING

A. Deliver products to site with seals and labels intact, in manufacturer’s original containers, dry and undamaged.

B. Store and handle roofing sheets in a dry, well-ventilated, weather-tight place to ensure no possibility of significant moisture exposure. Store rolls of felt and other sheet materials on pallets or other raised surface. Stand all roll materials on end. Cover roll goods with a canvas tarpaulin or other breathable material (not polyethylene).

C. Do not leave unused materials on the roof overnight or when…