2025 Roof RFP 4.9.25 (3).pdf

REQUEST FOR PROPOSAL (RFP)

2025 PELLSTON

PUBLIC SCHOOLS

ROOF

REPLACEMENT

PROJECTS

Pellston Public Schools April 7, 2025

Questions/Communications to:

Pellston Public Schools Stephen Seeyle, Superintendent 127 Park Street Pellston, MI 49769 P: 231.539.8421 email: sseeyle@pellstonschools.org

PELLSTON PUBLIC SCHOOLS

Advertisement for Request for Proposals

Pellston Public Schools Roofing Project

Proposals for the Pellston Public Schools Roofing Project will be received by the Pellston Public School District at the Office of the Superintendent, 172 Park Street, Pellston, MI 49769 until Wednesday, April 30, 2025 at 3:30 PM. Any proposal received after the designated closing time will be returned unopened.

The purpose of this Request for Proposals is to seek the service of qualified roofing contractors certified in the application of PVC/ shingle roofing and metal siding to cover selected school roofs and walls at Pelston Elementary and Middle/High Schools. The proposal is to remove existing asphalt shingles, replace any damaged plywood subsurface and install new shingles at the Elementary. Install new PVC roofing over the existing roof at the Elementary gymnasium and install new PVC roofing over existing as indicated at the Middle/High School. Contractor is also to install metal siding on the brick wall as indicated on the documents.

A pre-bid project review meeting has been planned for April 16, 2025 at 3:30 PM. Meeting will take place in the High School Board Room, 172 Park St., Pellston, MI. Although it is not mandatory, it is highly recommended that the site be visited to verify site limitations, layout and exact condition/location of the project.

An original and one (1) copy of the proposal shall be submitted in a sealed envelope addressed to Mr. Stephen Seelye, Superintendent and marked Pellston Public Schools Roofing Projects.

The School District reserves the right to accept or reject any and all proposals and to waive any technicalities or irregularities therein. The district further reserves the right to award the contract to that proposer whose proposal best complies with the project requirements. Proposers may not withdraw their proposal for a period of ninety (90) days for the date set for the opening thereof.

Stephen Seelye Superintendent

Dated: 7 April 2025

1. INTRODUCTION

1.1 PURPOSE AND GENERAL INFORAMATION

The Pellston Public School District is requesting responses to this Request for Proposal (RFP) to enter into a contract with a Roofing/Metal Siding Contractor/s to install new PVC roofs at the Elementary and Middle/High Schools and to replace the shingle roof at the Elementary School along with metal siding at the Middle/High School in designated areas.

A copy of this RFP can be obtained from the Pelston Public School District www.pelstonschools.org and The State of Michigan SIGMA Website. It is incumbent upon Respondents to check the School District website www.pellstonschools.org for additional information and/or addendums. Questions regarding the substance of the RFP or scope of services must be submitted via e-mail to Stephen Seelye at sseelye@pellstonschools.org the school districts representative on this project. Oral comments are not official responses.

Responses are due prior to the deadline indicated and must be delivered or mailed to Pellston Public Schools, 172 Park Street, Pellston, MI 49769. Late responses will not be accepted – NO EXCEPTIONS.

1.2 DEFINITIONS

In this RFP the following definitions shall apply:

“District” means Pellston Public School District;

“District Representative” has the meaning set out in section 1.5;

“Website” means www.pellstonschools.org

“Closing Time” has the meaning set out in section 1.3;

“Contract” means a formal written contract between the District and a Preferred Proponent to undertake the Services, the preferred contract form will be a Pellston Public School Purchase Order.

“Preferred Proponent” means the Proponent selected by the District to enter into negotiations for a Contract;

“Proponent” means an entity that submits a Proposal;

“RFP” means this Request for Proposals;

“Services” has the meaning of any and all construction and administration work necessary to complete this project;

“Site” means the place where the Services are to be performed.

1.3 PROPOSAL SCHEDULE

Closing Time and Address for Proposal Delivery

Proposal must be received by the office of:

Office of the Superintendent

172 Park Street.

Pellston, MI 49769

Proposal Closing Date and Time: Wednesday, April 30, 2025 at 3:30 PM (Local Time).

Submissions by email will be accepted.

LATE PROPOSALS

Proposals received after the Closing Time will not be accepted or considered. Delays caused by and delivery, courier or mail service(s) will not be grounds for an extension of the closing time.

1.4 INFORMATION MEETING

A pre-bid meeting has been planned for April 16, 2025 at 3:30 PM. The meeting will take place in the High School Board Room, 172 Park St., Pellston, MI. Interested suppliers/contractors are encouraged to attend the site meeting to review the existing conditions. Although it is not mandatory, it is highly recommended that the site be visited to verify site limitations, layout and exact location of the project.

1.5 AMMENDMENTS TO PROPOSALS

Proposals may be revised by written amendment, delivered to the location set out above, at any time before the closing time but not after. An amendment must be signed by an authorized signatory of the Proponent in the same manner as provided in the original proposals.

All inquiries related to this RFP shall be directed in writing, via e-mail to the person named below (the ‘District Representative”). Information obtained from any person or source other than the District Representative may not be relied upon.

District Representative:

Mr. Stephen Seelye Phone: 231.593.8421 E-mail: sseelye@pellstonschools.org

Inquiries should be made no later than 3 days before Proposal Closing Time. The District reserves the right not to respond to inquiries made within 3 days of Closing Time.

Inquiries and responses will be recorded and posted on the District Website. It is the responsibility of the Proponent to check the Website for Addendums prior to submitting their proposal.

Proponents finding discrepancies or omission in the Contract or RFP or having doubts as to the meaning or intent of any provision should immediately notify the District Representative. If the District determines that an amendment is required to this RFP, the District Representative will issue an addendum in accordance with section 1.6. No oral conversation will affect or modify the terms of this RFP or may be relied upon by any Proponent.

1.6 ADDENDA

If the District determines that an amendment is required to this RFP, the District Representative will post a written addendum on the Website at www.pellstoneschools.org and upon posting will be deemed to form a part of this RFP. No Amendment of any kind to the RFP is effective unless it is posted in a formal written addendum on the Website.

Upon submitting a Proposal, Proponents will be deemed to have received notice of all addenda that are posted on the Website.

1.7 EXAMINATION OF CONTRACT DOCUMENTS AND SITE

Proponents will be deemed to have carefully examined the RFP, including any attached schedules, the Contract and the Site (as applicable) prior to preparing and submitting a Proposal with respect to any and all facts which may influence a Proposal.

1.8 STATUS INQUIRIES

All inquiries related to the status of this RFP, including whether or not a Contract has been awarded, should be directed to the District Representative.

2. PROPOSAL SUBMISSION FORM AND CONTENTS

2.1 PACKAGE

Proposals shall be in a sealed package, marked on the outside with the Proponent’s name and title of the Project.

2.2 FORM OF PROPOSAL

Proponents are to complete the form of Proposal attached as Schedule A.

2.3 SIGNATURE

The legal name of the person or firm submitting the Proposal should be inserted in Schedule A. The Proposal should be signed by a person authorized to sign on behalf of the Proponent and include the following:

A. If the Proponent is a corporation then the full name of the corporation should be included, together with the names of authorized signatories. The Proposal should be executed by all of the authorized signatories or by one or more of them provided that a copy of the corporate resolution authorizing those persons to execute the Proposal on behalf of the corporation is submitted;

B. If the Proponent is a partnership or joint venture then the name of the partnership or joint venture and the name of each partner or joint venturer should be included and each partner or joint venturer should sign personally (or, if one or more person(s) have signing authority for the partnership or joint venture, the partnership or joint venture should provide evidence to the satisfaction of the District that the person(s) signing have signing authority for the partnership or joint venture). If a partner or joint venture is a corporation then such corporation should sign as indicated in subsection (A) above; or;

C. If the Proponent is an individual, including a sole proprietorship, the name of the individual should be included.

2.4 ADDITIONAL INFORMATION

The District may, at its discretion, request clarifications or additional information from a Proponent with respect to any Proposal, and may make such requests to only selected Proponents. The District may consider such clarifications or additional information in evaluating a Proposal.

2.5 NEGOTIATION OF CONTRACT AND AWARD

If the District selects a Preferred Proponent or Proponents, then it may:

A. Enter into a Contract with the Preferred Proponent(s); or B. Enter into discussions with the Preferred Proponent(s) to clarify any outstanding issues and attempt to finalize the terms of the Contract(s), including financial terms.

If discussions are successful, the District and the Preferred Proponent(s) will finalize the Contract(s); or

C. If at any time the District reasonably forms the opinion that a mutually acceptable agreement is not likely to be reached within a reasonable time, give the preferred Proponent(s) written notice to terminate discussions, in which event the District may then either open discussions with another Proponent or terminate this RFP and retain or obtain the Services in some other manner.

The District is under no obligation to accept any Proposal submitted. The District reserves the right in its sole discretion to waive informalities in, or reject any or all Proposals, or to accept any Proposal deemed most favorable in the interest of the District, or cancel the competition at any time without award. Thereafter, the District may issue a new Invitation/Request, sole source or do nothing.

All costs incurred in the preparation and presentation of the proposal shall be wholly absorbed by the contractor. All supporting documentation and manuals submitted with this proposal will become the property of the Pellston Public School District unless otherwise requested by the contractor at the time of submission.

3. GENERAL CONDITIONS

3.1 NO DISTRICT OBLIGATION

This RFP is not a tender and does not commit the District in any way to select a Preferred Proponent, or to proceed to negotiations for a Contract, or to award any Contract, and the District reserves the complete right to at any time reject all Proposals, and to terminate this RFP process.

3.2 NO CONTRACT

By submitting a Proposal and participation in the process as outlined in this RFP, Proponents expressly agree that no contract of any kind is formed under, or arises from, this RFP prior to the signing of a formal written Contract.

3.3 CONFLICT OF INTEREST

Proponents shall disclose any potential conflicts of interest and existing business relationships that they may have with the District. If requested by the District, Proponents should provide all pertinent information regarding ownership of their company within forty-eight (48) hours of the District’s request.

3.4 SOLICITATION OF DISTRICT BOARD MEMBERS

Proponents and their agents will not contact any Board Member of the District or staff with respect to this RFP at any time prior to the award of a contract or the termination of this RFP. The District may reject the proposal of any Proponent that makes any such contact.

3.5 CONFIDENTIALITY

All submissions become the property of the District and will not be returned to the Proponent. The District will hold all submissions in confidence unless otherwise required by law.

4. SCOPE OF SERVICES

4.1 Elementary School (Gymnasium) Flat Roof Replacement Services will include but not limited to:

1. Remove existing PVC roof membrane and return to Duro Last Roofing for recycling.

2. Inspect existing roof deck and remove/replace any loose fasteners.

3. Remove existing perimeter edge metal and dispose of in a legal manner

4. Provide and install (1) layer of 3/8” XPS fanfold insulation.

5. Provide and install a 50 mil Duro Last PVC roof system. The roof system is to be mechanically fastened per manufacturers specifications.

6. Flash and seal all penetrations per manufacturers specifications.

7. Provide and install new PVC coated, 24 ga, metal drip edge to roof perimeter. Drip edge is to be provided and warrantied by roof membrane manufacturer.

8. Provide and install two way breather vents per manufacturers specifications.

9. Provide complete clean up and removal of all job related debris.

10. Provide a manufacturers 20 year NDL warranty covering material and labor

4.2 Elementary School (Shingled Area) Roof Replacement Services will include but not be limited to:

1. Remove existing roof system down to the roof deck and dispose of in a legal manner

2. Inspect existing roof deck and replace bad decking at a predetermined square foot price.

3. Provide and install a 9’ row of ice and water underlayment to all eave edges.

4. Provide and install a 9’ row of ice and water underlayment to all valleys.

5. Provide and install a 3’ row of ice and water underlayment to all rake edges

6. Provide and install shingle manufacturer’s recommended underlayment to remainder are of the roof.

7. Provide and install 24-gauge (standard color) perimeter drip edge to all roof edges.

New drip edge face is to extend down enough to cover witness line from old drip edge. Drip edge is to be installed utilizing a full under cleat metal. Face fastening will not be allowed.

8. Provide and install a complete Malarkey – Vista Shingle system (or equal) to entire roof area.

9. Flash and seal all roof penetrations per manufacturer’s specifications.

10. Provide and install new ridge vent per manufacturer’s specifications.

11. Provide complete clean up and removal of all job-related debris.

12. Repair any damage to landscaping, lawns, sidewalks and parking lots due to construction operations.

13. Provide manufacturers lifetime shingle warranty.

4.3 Middle/High School (Excluding Area 1) Flat Roof Replacement Services will include but not limited to:

1. Remove and dispose of existing perimeter edge metal.

2. Slice existing roof membrane around perimeter and around all penetrations

3. Remove and replace any wet insulation at a predetermined square foot price.

4. Install (1) layer of 1.75” ISO

5. Install (1) layer of ½” HD ISO board

6. Install 60 mil Duro Tuff membrane. Membrane is to be mechanically fastened

7. Flash and seal all roof penetrations.

8. Install two way breather vents per manufacturers specifications.

9. Install walk pads at the top and bottom of all ladders.

10. Provide complete clean up and removal of all job related debris.

11. Provide a 25 year manufacturers warranty.

4.4 Middle/High School Metal Wall installation (Wall between roof area 3 & 4):

1. Install fire treated 2 x 4 vertical nailers (horizontal) or 1 ½” metal Z strips over existing brick.

2. Install 1 ½” polyisocyanurate insulation panel between nailers,

3. Install metal wall panels over entire wall area

4. Install metal corner trims at areas noted on roof plan

5. Provide all trims and closures for a complete job.

6. Provide complete clean up and removal of all job related debris.

4.5 Contractors will be responsible for the payments and contacts for all permits/inspections required for the completion of these projects. All permits/inspections shall be received from the authority’s having jurisdiction over these projects.

4.6 Contractors will be responsible for any and all damage due to construction. Any damage caused by the contractor must be repaired within ten (10) working days at the expense of the contractor. If damage occurs, the contractor will be liable for such damage.

4.7 It is expressly agreed and understood that the Contractor is, in all respects, an independent contractor as to work; however, in certain aspects, the Contractor is bound to follow the directions of the District Superintendent or appointed designee at the time of repair and/or construction, and that the Contractor is in no respect an agent, servant or employee of the District.

4.8 The Contractor’s timeliness and delivery of quality products shall be monitored by the District Superintendent or appointed designee. If at any time the Contractor is performing less than satisfactory work, the Contractor, upon notification by the District Superintendent or appointed designee, shall do whatever is necessary to perform the work properly at no additional cost to the District. Failure to give such notification shall not relieve the Contractor of his obligation to perform the work at the time and in the manner specified.

5. INSURANCE REQUIREMENTS

5.1 The selected service provider shall agree to indemnify and hold harmless the District and its officers, agents, and employees for any and all claims, causes, or actions, and damages of every kind, for injury to or death of any person and damages to property arising out of or in connection with the work done by the Contractor under this contract, and including acts of omissions of the District or its officers, agents, or employees in connection with said contract.

5.2 The District will require proof of professional liability insurance with errors and omissions coverage, workers compensation insurance, general liability and automobile insurance with companies authorized to do business in Michigan, and in amounts meeting or exceeding the amounts listed in Attachment B.

5.3 Each proposal that exceeds $50,000 must be submitted with an attached certified check, money order, or a bid bond from a surety company approved to do business in the State of Michigan, payable to the Owner in an amount not less than 5% of the base proposal sum of the work.

5.4 Prior to the execution of the contract, furnish Performance and Payment Bonds covering the faithful performance of the contract and the payment of all obligations arising there under. Include cost of bonds in the base proposal. The bidder shall require the attorney-in-fact who executes the required bonds on behalf of the surety to affix thereto a certified and current copy of their power of attorney.

5.5 The successful Contractor, within ten (10) days after the contract award, shall furnish the

District with proof of insurance as stated in Attachment B.

5.6 The District shall be named as additional insured on all policies as directed in Attachment

B. Should any insurance required by this contract lapse, the Contractor shall immediately cease any operations until authorized in writing by the District. If the lapse period extends fifteen (15) days, the contract shall automatically terminate and the Contractor shall be in breach of this contract.

6. AGREEMENT/EXCEPTIONS

6.1 Submission of a proposal indicates the Contractor agrees to the terms, conditions and other provisions contained in the RFP, unless the Contractor clearly and specifically presents in its proposal any exceptions to the terms, conditions, and other provisions contained in the

RFP.

6.2 Exceptions presented in a proposal are not to be considered incorporated into the contract between the District and the selected Contractor unless and until the District agrees to accept such exceptions.

6.3 The selected Contractor must acknowledge and agree that the contract resulting from this

RFP include the terms, conditions, and other provisions contained in the RFP, the proposal selected (including any exceptions accepted by the District) which is acceptable to the District and is not in conflict or contravention of the RFP, and any other documents mutually agreed upon by the District and selected Contractor.

6.4 No oral statements or any person shall modify or otherwise change or affect the terms, conditions, or specifications stated in the RFP or the resulting contract.

6.5 A formal contract will be negotiated after the selection of a contractor for the services identified in the scope of services by the District.

6.6 The contractor shall not assign the contract or any part thereof to any other person unless such assignment is first approved in writing by the District, it being understood that the contract shall not be assignable unless the proposed assignee is acceptable to the District.

The request for assignment must include evidence that the proposed assignee qualifies under all requirements of the contract and must be addressed as defined in the contract for services.

7. PROPOSAL SUBMITTAL

One original plus one (copy) of the entire bid package must be submitted to the District as follows:

Pellston Public Schools Roofing Project Pellston Public School District Office of the Superintendent 172 Park Street Pellston, MI 49769

All proposals must be received prior to, Wednesday, April 30, 2025 at 3:30 PM. Proposals may be mailed or dropped off at the Office of the Superintendent. Proposals must be received in the Superintendents Office for it to be considered in the RFP process.

SCHEDULE A

2025 PELLSTON SCHOOLS ROOFING PROJECTS

BID FORM

TO: Mr. Stephen Seelye, Superintendent Pelston Public School District Pellston, MI 49769

Having carefully reviewed the bidding documents described in the RFP and understanding the scope of work involved in the proposed Bid and those that interface with it, we hereby propose to furnish labor, materials, tools, equipment, supervision, insurance and services required for the completion of all work required for the Bid indicated in accordance with the RFP.

BASE BID, ELEMENTARY SHINGLE ROOFING PROJECT:

BASE BID, ELEMENTARY, MIDDLE/HIGH SCHOOL ROOFING/SIDING PROJECT:

BIDDERS NAME:

ADDENDA:

And having Received and Examined the Following Addenda: (include date for acknowledgement)

Addendum Number______________, dated__________________________, 2025

Addendum Number______________, dated__________________________, 2025

SUBSTITUTIONS:

The school district will consider substitutions from the original specified materials. The following substitutions for the “Standards” specified are listed herein for consideration, and if accepted, the contract sum may be adjusted in accordance with the following:

______________________________________________Add / Deduct $___________________

______________________________________________Add / Deduct $___________________

CONTRACT:

The undersigned agrees that the above Base Bid Prices shall hold for 60 days and Alternate Prices for 90 days after receipt of proposals, to accept provisions of “Instructions to Bidders”

IRAN BUSINESS RELATIONSHIP AFFIDAVIT:

Pursuant to the Michigan Iran Economic Sanctions Act, 2012 P.A. 517, by submitting a bid, proposal or response, Respondent certifies, under civil penalty for false certification, that it is fully eligible to do so under law and that it is not an “Iran Linked Business,” as that term is defined in the Act.

SUBMITTED BY:

Firm Name:

Address:

Email Address:

Signed:

Typed Name:

Date: Title:

Phone: Fax:

If bidder is a Corporation, indicate State of Incorporation:

If a Partnership, give full names of all Partners:

Please submit (1) one original copy and (1) one copy of this proposal. Contractor should retain (1) one copy for your records.

FAMILIAL DISCLOSURE STATEMENT

All bidders must complete the following familial disclosure from in compliance with MCL 380.1267 (Public Act 232 of 2004) and attach this information to the bid.

By the attached sworn and notarized statement we are disclosing the following familial relationship(s) that exist between the owner or any employee of the bidder and any member of the board, intermediate school board, or board of directors or the superintendent of the school district, intermediate superintendent of the intermediate school district, or chief executive officer of the public school academy.

The Owner shall not accept a bid that does not include this sworn and notarized disclosure statement.

Disclose any familial relationship and complete the form below in its entirety:

The following are familial relationships as described above (provide employee name, family contact name, family contact position, and familial relationship or NONE.)

Signature(s): Title: Name of Firm:

STATE OF MICHIGAN

SS COUNTY OF

On this day of ____________, 20____, before me a Notary Public in and for , Said county, personally appeared agent of the said firm

And acknowledged the same to be his free act and deed as such agent.

Notary Public

SCHEDULE B

2025 PELLSTON SCHOOLS ROOFING PROJECT

INSURANCE REQUIREMENTS

WORKER’S COMPENSATION AND EMPLOYER’S LIABILITY INSURANCE:

Worker’s Compensation: State of Michigan Statutory Limits

Employer’s Liability: $500,000 – each accident $500,000 – disease (each employee) $500,000 – disease (policy limit)

The limits for Commercial General Liability insurance including -coverage for Premises-Operations, Independent Contractors’ Protective, Products-Completed Operations, Contractual Liability, Personal Injury and Broad Form Property Damage (including coverage for Explosion, Collapse, and Underground Hazards) shall be as follows:

COMMERCIAL GENERAL LIABILITY INSURANCE:

Each occurrence $2,000,000 – aggregate

Each occurrence $2,000,000 – aggregate

Fire Damage (any one fire) $100,000

Medical Expense (any one person) $5,000

The Contractor shall furnish and maintain during the entire period of construction, a Protective/Contractual Liability policy written in the name of the Owner and Architect with the following limits:

Bodily Injury $1,000,000 – each occurrence Property Damage $1,000,000 – each occurrence Property Damage $1,000,000 – aggregate

Notes;

Products-Completed Operations Insurance shall be maintained for a minimum period of one (1) year after final payment.

The Owner and Architect shall be listed as additional insured. The Owner shall be the certificate holder.

Automobile Liability insurance (owned, non-owned and hired vehicles) for bodily injury and property damage:

AUTOMOBILE LIABILITY INSURANCE:

Bodily Injury $1,000,000 Property Damage $1,000,000

Umbrella or Excess Liability Coverage: UMBRELLA/EXCESS LIABILITY INSURANCE:

Umbrella/Excess Insurance $2,000,000 – each occurrence $2,000,000 – aggregate

SCHEDULE C

2025 PELLSTON ELEMENTARY SCHOOL

GYM ROOF REPLACEMENT SPECS

PART 1 GENERAL

1.1 SUMMARY

A. Membrane Type: Duro-Last 50-mil Membrane (Custom Fab: Regular Rolls)

1. Roll Width: 60" (Installed widths may vary)

2. Membrane Color: White

3. Attachment Type: Mechanically Fastened

B. Insulation Assembly Type: Duro-Guard XPS 3/8" Fanfold

1. Board Application: Flat Stock

2. Board Style: Assembly Thickness

3. Attachment Type: Mechanically Fastened

C. Existing Roof Type: PVC

D. Deck Type: OSB Deck (5/8 in.)

E. Prefabricated flashings, corners, parapets, stacks, vents, and related details.

F. Fasteners, adhesives, and other accessories required for a complete roofing installation.

G. Traffic Protection.

1.2 REFERENCES

A. ASTM INTERNATIONAL (ASTM)

1. (2019) Standard Test Methods for Coated Fabrics (D751)

2. (2021) Standard Specification for Poly(Vinyl Chloride) Sheet Roofing (D4434/D4434M)

3. (2022) Standard Specification for Faced Rigid Cellular Polyisocyanurate Thermal Insulation Board (C1289)

4. (2020) Standard Test Methods for Fire Tests of Roof Coverings (E108)

5. (2020) Standard Test Methods for Fire Tests of Building Construction and Materials (E119)

B. UL SOLUTIONS (UL)

1. (2021) UL Roofing Systems (TGFU.R10128)

C. AMERICAN SOCIETY OF CIVIL ENGINEERS (ASCE)

1. (2014) Minimum Design Loads for Buildings and Other Structures (ASCE Standard - ASCE/SEI 7-10)

2. (2017) Minimum Design Loads and Associated Criteria for Buildings and Other Structures (ASCE Standard - ASCE/SEI 7-16)

3. (2022) Minimum Design Loads and Associated Criteria for Buildings and Other Structures (ASCE Standard - ASCE/SEI 7-22)

D. NATIONAL ROOFING CONTRACTORS ASSOCIATION (NRCA)

1. (2019) NRCA Roofing Manual - Membrane Systems

1.3 SYSTEM DESCRIPTION

A. General: Provide installed roofing membrane and base flashings that remain watertight;

do not permit the passage of water; and resist specified uplift pressures, thermally induced movement, and exposure to weather without failure.

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

C. Physical Properties (must meet or exceed):

1. Roof product must meet the requirements of Type III PVC sheet roofing as defined by ASTM D4434.

2. Thickness: 50 mil, nominal, in accordance with ASTM D751.

3. Thickness over Scrim: ≥ 28 mil in accordance with ASTM D7635.

4. Breaking Strength: ≥ 438 lbf. (machine direction) and ≥ 390 lbf. (cross machine direction) in accordance with ASTM D751 Grab Method.

5. Elongation at Break: ≥ 31% (machine direction) and ≥ 31% (cross machine direction) in accordance with ASTM D751 Grab Method.

6. Seam Strength: ≥ 417 lbf. in accordance with ASTM D751 Grab Method.

7. Tear Strength: ≥ 132 lbf. (machine direction) and ≥ 163 lbf. (cross machine direction) in accordance with ASTM D751 Procedure B.

8. Low Temperature Bend: Pass at -40 °F in accordance with ASTM D2136.

9. Heat Aging: Pass after being conditioned for 56 days in oven maintained at 176 °F in accordance with ASTM D3045.

10. Accelerated Aging: Pass after 10,000 hours of total test time in accordance with

ASTM G155.

11. Dimensional Stability: Change of -0.30% (machine direction) and -0.45% (cross machine direction) in accordance with ASTM 1204.

12. Water Absorption: < 1.7% at 158 °F for 168 hours in accordance with ASTM D570.

13. Static Puncture Resistance: ≥ 56 lbf. in accordance with ASTM D5602.

14. Dynamic Puncture Resistance: ≥ 14.7 ft-lbf. in accordance with ASTM D5635.

D. Cool Roof Rating Council (CRRC) (Membrane must be listed on the CRRC website):

1. Solar Reflectance (Initial): ≥ 86%

2. Solar Reflectance (3-Year Aged): ≥ 74%

3. Thermal Emittance (Initial): ≥ 89%

4. Thermal Emittance (3-Year Aged): ≥ 89%

5. Solar Reflectance Index (SRI) (Initial): ≥ 108%

6. Solar Reflectance Index (SRI) (3-Year Aged): ≥ 91%

E. Insulation:

1. General Requirements

a. Install using a minimum of two layers.

b. Configuration as indicated on the drawings.

2. Duro-Guard XPS 3/8" Fanfold

a. Assembly Thickness:

1.4 SUBMITTALS

A. Product data sheets to be used, with the following information included:

1. Preparation instructions and recommendations

2. Storage and handling requirements and recommendations

3. Installation methods

4. Maintenance requirements

B. Sustainability Documentation:

1. NSF/ANSI Standard 347 Certificate

2. Type III product-specific Environmental Product Declaration

C. Shop Drawings: Indicate insulation pattern, overall membrane layout, field seam locations, joint or termination detail conditions, and location of fasteners.

D. Provide verification samples for each product specified (two samples representing each product, color and finish):

1. 4-inch by 6-inch sample of roofing membrane, of color specified.

2. 4-inch by 6-inch sample of walkway pad.

3. Termination bar, fascia bar with cover, drip edge, and gravel stop if to be used.

4. Each fastener type to be used for installing membrane, insulation/recover board, termination bar and edge details.

E. Installer Certification: Certification from the roofing system manufacturer that Installer is approved, authorized, or licensed by manufacturer to install roofing system.

F. Manufacturer's warranties.

1.5 QUALITY ASSURANCE

A. Perform work in accordance with manufacturer's installation instructions.

B. Manufacturer Qualifications: A manufacturer specializing in the production of PVC membranes systems and utilizing a Quality Control Manual during the production of the membrane roofing system that has been approved by and is inspected by Underwriters Laboratories.

C. Installer Qualifications: Company specializing in installation of roofing systems similar to those specified in this project and approved by the roofing system manufacturer.

D. Source Limitations: Obtain components for membrane roofing system from roofing membrane manufacturer.

E. There shall be no deviations from the roof membrane manufacturer's specifications or the approved shop drawings without the prior written approval of the manufacturer.

1.6 REGULATORY REQUIREMENTS

A. Conform to applicable code for roof assembly fire hazard, wind uplift, and cool roof requirements.

B. Fire Hazard Requirements: Provide membrane roofing materials with the following fire-test-response characteristics. Materials shall be identified with appropriate markings of applicable testing and inspecting agency.

1. Class A

2. Fire-test-response standard: Comply with ASTM E108 for application and roof slopes indicated.

3. Fire-Resistance Ratings: Comply with ASTM E119 for fire-resistance-rated roof assemblies of which roofing system is a part.

4. Conform to applicable code for roof assembly fire hazard requirements.

C. Wind Uplift Requirements: Roofing System Design: Provide a roofing system designed to resist uplift pressures calculated according to the current edition of ASCE/SEI 7, Minimum Design Loads and Associated Criteria for Buildings and Other Structures.

1.7 PRE-INSTALLATION MEETING

A. Convene meeting not less than one week before starting work of this section.

B. Review methods and procedures related to roof deck construction and roofing system including, but not limited to, the following:

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

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

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

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

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

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

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

9. Review existing roof manufacturer's recycling program and return roofing system to the manufacturer for recycling.

1.8 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, 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.

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. Store roof materials and place equipment in a manner to avoid permanent deflection of deck.

E. Store and dispose of solvent-based materials, and materials used with solvent-based materials, in accordance with requirements of local authorities having jurisdiction.

1.9 WARRANTY

A. Contractor's Warranty: The contractor shall warrant the roof application with respect to workmanship and proper application for two (2) years from the effective date of the warranty issued by the manufacturer.

B. Manufacturer's Warranty: Must be no-dollar limit type and provide for completion of repairs, replacement of membrane or total replacement of the roofing system at the then-current material and labor prices throughout the life of the warranty. In addition the warranty must meet the following criteria:

1. Warranty Period: 20 years from date issued by the manufacturer.

2. Must provide adequate or sufficient drainage.

3. Issued direct from and serviced by the roof membrane manufacturer.

4. Transferable for the full term of the warranty.

PART 2 PRODUCTS

2.1 MANUFACTURER

A. Manufacturer: Duro-Last Roofing, which is located at: 525 Morley Drive, Saginaw, MI 48601. Telephone: 800-248-0280.

B. All roofing system components to be provided or approved by Duro-Last Roofing, Inc.

C. Substitutions: Not permitted.

2.2 ROOFING SYSTEM COMPONENTS

A. Roofing Membrane:

1. Properties:

a. Type: Duro-Last 50-mil Membrane (Custom Fab: Regular Rolls)

b. Roll Width: 60" (Installed widths may vary)

c. Membrane Color: White

d. Attachment Type: Mechanically Fastened

2. Features:

a. ASTM D4434, Type III

b. Fabric-reinforced, PVC, NSF/ANSI 347 Gold or Platinum Certification, and a product-specific third-party verified Environmental Product Declaration.

c. Minimum recycle content 7% post-industrial and 0% post-consumer.

d. Recycled at end of life into resilient flooring or concrete expansion joints.

B. Insulation:

1. General Requirements

a. Provide preformed roof insulation boards that comply with requirements and referenced standards, as selected from manufacturer's standard sizes.

b. Provide preformed saddles, crickets, and other insulation shapes where indicated for sloping to drain. Fabricate to slopes indicated.

c. Provide roof insulation accessories approved by the roof membrane manufacturer and as recommended by insulation manufacturer for the intended use.

2. Missing layer properties!

C. Existing Roof:

1. Properties:

a. Type: PVC

D. Deck Type:

1. Properties:

a. Type: OSB Deck (5/8 in.)

E. Accessory Materials: Provide accessory materials supplied by or approved for use by Duro-Last Roofing, Inc.:

1. Sheet Flashing: Manufacturer's standard reinforced PVC sheet flashing.

2. Prefab Flashings: Manufactured using standard reinforced PVC membrane.

a. Duro-Last® Inside and Outside Corners

b. Duro-Last® Stack Flashing

c. Duro-Last® Curb Flashing

3. Metal Termination: Supplied by Duro-Last Roofing, Inc.

a. Vinyl Coated Metal Drip Edge

PART 3 EXECUTION

3.1 EXAMINATION

A. Verify that the surfaces and site conditions are ready to receive work.

B. Verify that the deck is supported and secured.

C. Verify that the deck is clean and smooth, free of depressions, waves, or projections, and properly sloped to drains, valleys, eaves, scuppers or gutters.

D. Verify that the deck surfaces are dry and free of standing water, ice or snow.

E. Verify that all roof openings or penetrations through the roof are solidly set.

F. If substrate preparation is the responsibility of another contractor, notify Architect of unsatisfactory preparation before proceeding.

G. Prior to re-covering an existing roofing system, conduct an inspection of the roof system accompanied by a representative of the membrane manufacturer or an authorized contractor.

1. Determine required fastener type, length, and spacing.

2. Verify that moisture content of existing roofing is within acceptable limits.

3. Identify damaged areas requiring repair before installation of new roofing.

4. Conduct core cuts as required to verify information required.

3.2 PREPARATION

A. Clean surfaces thoroughly prior to installation.

B. Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.

C. Surfaces shall be clean, smooth, free of fins, sharp edges, loose and foreign material, oil, grease, and bitumen.

D. Re-Roofing Over Existing Single-Ply System:

1. Remove all loose or high fasteners.

2. Membrane contaminated with bitumen must be immediately cleaned. If cleaning does not remove the bitumen, the contaminated membrane must be replaced, or covered with both a slip sheet and new membrane.

3. Blisters, buckles and other surface irregularities must be repaired or removed. If the damage is extensive, an approved rigid board insulation or a cover board must be installed.

4. When the system is smooth or granular-surfaced, any approved slip sheet, insulation or cover board may be used to provide separation of the roof system and new membrane. Duro-Guard fan folds may be used if the surface is pea gravel or crushed stone which is ¼ to 3/8 inch in size and has been leveled and maintained at 4 psf. For larger rock/gravel, utilize an approved rigid insulation or cover board.

5. If rock/gravel surfacing is removed, an approved fan fold, rigid insulation or cover board must be used. If embedded rock/gravel remains that protrudes out of the deck more than ¼ inch, do not use fan fold board. Instead, use an approved cover board or rigid insulation.

6. When installing polystyrene insulation over coal tar pitch or asphalt-based roof systems, a slip sheet must be used between the insulation and existing roof.

3.3 INSTALLATION

A. Insulation:

1. General Requirements

a. Install insulation in accordance with the roof manufacturer’s requirements.

b. Insulation shall be adequately supported to sustain normal foot traffic without damage.

c. Where field trimmed, insulation shall be fitted tightly around roof protrusions with no gaps greater than ¼ inch.

d. Tapered insulation boards shall be installed in accordance with the insulation manufacturer’s shop drawings.

e. No more insulation shall be applied than can be covered with the roof membrane by the end of the day or the onset of inclement weather.

f. If more than one layer of insulation is used, all joints between subsequent layers shall be offset by at least 6 inches.

2. Duro-Guard XPS 3/8" Fanfold

a. Use only fasteners, stress plates and fastening patterns accepted for use by the roof manufacturer. Fastening patterns must meet applicable design requirements.

b. Install fasteners in accordance with the roof manufacturer’s requirements.

Fasteners that are improperly installed must be replaced or corrected.

c. Install all layers in parallel courses with end joints staggered 50% and adjacent boards butted together with no gaps greater than ¼ inch.

B. Roofing Membrane:

1. General Requirements

a. Install membrane in accordance with the roof manufacturer’s requirements.

b. Cut membrane to fit neatly around all penetrations and roof projections.

2. Duro-Last 50-mil Membrane (Custom Fab: Regular Rolls)

a. Use only fasteners, stress plates and fastening patterns accepted for use by the roof manufacturer. Fastening patterns must meet applicable design requirements.

b. Install fasteners in accordance with the roof manufacturer’s requirements.

Fasteners that are improperly installed must be replaced or corrected.

c. Mechanically fasten membrane to the structural deck utilizing fasteners and fastening patterns in accordance with the roof manufacturer’s requirements.

C. Weld overlapping sheets together using hot air. Minimum weld width is 1-1/2 inches.

D. Check field welded seams for continuity and integrity and repair all imperfections by the end of each work day.

E. Flashings: Complete all flashings and terminations as indicated on the drawings and in accordance with the membrane manufacturer’s requirements.

1. Provide securement at all membrane terminations at the perimeter of each roof level, roof section, curb flashing, skylight, expansion joint, interior wall, penthouse, and other similar condition.

a. Do not apply flashing over existing thru-wall flashings or weep holes.

b. Secure flashing on a vertical surface before the seam between the flashing and the main roof sheet is completed.

c. Extend flashing membrane a minimum of 6 inches (152 mm) onto the main roof sheet beyond the mechanical securement.

d. Use care to ensure that the flashing does not bridge locations where there is a change in direction (e.g. where the parapet meets the roof deck).

2. Penetrations:

a. Flash all pipes, supports, soil stacks, cold vents, and other penetrations passing through the roofing membrane as indicated on the Drawings and in accordance with the membrane manufacturer’s requirements.

b. Utilize custom prefabricated flashings supplied by the membrane manufacturer.

c. Existing Flashings: Remove when necessary to allow new flashing to terminate directly to the penetration.

3. Pipe Clusters and Unusual Shapes:

a. Clusters of pipes or other penetrations which cannot be sealed with prefabricated membrane flashings shall be sealed by surrounding them with a prefabricated vinyl-coated metal pitch pan and sealant supplied by the membrane manufacturer.

b. Vinyl-coated metal pitch pans shall be installed, flashed and filled with sealant in accordance with the membrane manufacturer’s requirements.

c. Pitch pans shall not be used where prefabricated or field fabricated flashings are possible.

F. Roof Drains: Coordinate installation of roof drains and vents.

1. Drain Assemblies with Clamping Rings:

a. Remove existing roofing system materials from drain bowl and clamping ring.

b. The membrane must extend beyond the inside of the clamping ring.

c. Use a manufacturer supplied or approved sealant (1/2 tube minimum) between the membrane and drain bowl assembly.

d. After the membrane is properly installed onto the bowl and the clamping ring set in place, all bolts securing the ring must be installed to provide constant, even compression on the sealant. If bolts are broken or missing, replacements must be installed.

2. Drain Boots:

a. Remove existing flashing and asphalt at existing drains in preparation for sealant and membrane.

b. Use a manufacturer supplied or approved sealant (1/2 tube minimum) to the outside of the drain boot and insert it into the drain.

c. Fasten membrane around the perimeter of the drain with the same fastening pattern as the field membrane, no less than 1 fastener per drain.

d. Install a pair of composite drain rings (CDRs) to compress the boot to the pipe. Ensure the CDR openings face in opposite directions.

e. Secure the manufacturer's drain guard over the opening by heat welding the attachment tabs to the roof membrane.

G. Edge Details:

1. Provide edge details as indicated on the Drawings. Install in accordance with the membrane manufacturer’s requirements.

2. Join individual sections in accordance with the membrane manufacturer’s requirements.

3. Coordinate installation of metal flashing and counter flashing.

4. Manufactured Roof Specialties: Coordinate installation of copings, counter flashing systems, gutters, downspouts, and roof expansion assemblies.

H. Walkways:

1. Install walkways in accordance with the membrane manufacturer’s requirements.

2. Provide walkways where indicated on the Drawings.

3. Install walkway pads at roof hatches, access doors, rooftop ladders and all other traffic concentration points regardless of traffic frequency. Provided in areas receiving regular traffic to service rooftop units or where a passageway over the surface is required.

4. Do not install walkways over flashings or field seams until manufacturer’s warranty inspection has been completed.

I. Water Cut-Offs:

1. Provide water cut-offs on a daily basis at the completion of work and at the onset of inclement weather.

2. Provide water cut-offs to ensure that water does not flow beneath the completed sections of the new roofing system.

3. Remove water cut-offs prior to the resumption of work.

4. The integrity of the water cut-off is the sole responsibility of the roofing contractor.

5. Any membrane contaminated by the cut-off material shall be cleaned or removed.

3.4 FIELD QUALITY CONTROL

A. The membrane manufacturer’s representative shall provide a comprehensive final inspection after completion of the roof system. All application errors shall be addressed and final punch list completed.

3.5 PROTECTION

A. Protect installed roofing products from construction operations until completion of project.

B. Where traffic is anticipated over completed roofing membrane, protect from damage using durable materials that are compatible with membrane.

C. Repair or replace damaged products after work is completed.

END OF SECTION

SCHEDULE D

2025 PELLSTON ELEMENTARY SCHOOL

ASPHALT SHINGLE ROOF SPECS

1.1 SECTION INCLUDES

A. High profile laminate asphalt shingles.

1. Legacy Scotchgard (273).

B. Underlayment and accessories.

1.2 RELATED SECTIONS

A. Section 02 41 16.13 - Building Demolition.

B. Section 06 10 00 - Rough Carpentry.

C. Section 07 61 00 - Sheet Metal Roofing.

1.3 REFERENCES

A. ASTM International (ASTM):

1. ASTM C209 - Standard Test Methods for Cellulosic Fiber Insulating Board.

2. ASTM C1289 - Standard Specification for Faced Rigid Cellular Polyisocyanurate Thermal Insulation Board.

3. ASTM D226 - Standard Specification for Asphalt-Saturated Organic Felt Used in Roofing and Waterproofing.

4. ASTM D1621 - Standard Test Method for Compressive Properties of Rigid Cellular Plastics.

5. ASTM D1970 - Standard Specification for Self-Adhering Polymer Modified Bituminous Sheet Materials Used as Steep Roofing Underlayment for Ice Dam Protection.

6. ASTM D2126 - Standard Test Method for Response of Rigid Cellular Plastics to Thermal and Humid Aging.

7. ASTM D3018 - Standard Specification for Class A Asphalt Shingles Surfaced with Mineral Granules.

8. ASTM D3161 - Standard Test Method for Wind-Resistance of Asphalt Shingles (Fan-Induced Method).

9. ASTM D3462 - Standard Specification for Asphalt Shingles Made from Glass Felt and Surfaced with Mineral…