751_25407.AGY_Addendum1_9_8_25.pdf

DTMB-0414 (Rev 10/22)

DEPARTMENT OF TECHNOLOGY, MANAGEMENT AND

BUDGET

State Facilities Administration Design and Construction Division

CONSTRUCTION BID ADDENDUM NO. 01

This form identifies an Addendum to Bidding Documents, and incorporates interpretations or clarifications, modifications, acceptance of proposed “or equal” materials, and other information into the Bidding Documents. Addenda will be numbered by the Professional and distributed through www.michigan.gov/SIGMAVSS as an attachment.

TO:

ALL BIDDERS

DATE ISSUED

PROJECT NAME FILE NUMBER

PROFESSIONAL PROJECT DIRECTOR BID OPENING DATE:

ADDENDUM ITEMS: (attach additional sheets and drawings if required)

ACKNOWLEDGEMENT: This Addendum must be acknowledged by the Bidder in the space provided in the Bid Summary and Bid Form. Failing to acknowledge Addenda may be cause for the Bid to be rejected. Addenda will become part of the Contract Documents.

PROFESSIONAL: DATE: 9/8/2025

APPROVED BY:

PROJECT DIRECTOR: DATE:

Seul Choix Keeper's Dwelling & Boathouse Roof Reshingle

8/25/2025

751/25407.AGY

Agency (DNR)DNR 9/17/2025

1. Attached is the pre-bid meeting attendance sign-in sheet.

2. Attached is the updated bid form with an updated bid item and an 'ADD' alternate.

3. Attached is a specification section for the 'ADD' Alternate featuring metal shingles on the southwest addition portion of the Keeper's Dwelling Roof shown as existing metal shingles on the project drawings.

4. Clarification: Updated bid schedule includes the removal and replacement of 50sf of deteriorated sheathing with treated plywood to match thickness of existing deck.

5. Clarification: Synthetic roofing underlayment in accordance with the roofing manufacturer's specification will be accepted in lieu of the 15lb roofing felt.

6. Clarification: The existing round finials and semicircular ridge and hip caps on the metal shingle portion of the southwest addition's roof must be removed and returned to the owner as included in the base bid price. The existing round finials and semicircular ridge and hip caps must be removed and reinstalled or replaced with like pieces to reproduce the appearance of the existing roof in the 'ADD' Alternate item.

7. Clarification: The gutters on the Keeper's Dwelling will need to be repaired/reconstructed to match the existing conditions with the exception of the gutters on the southwest addition which will be left as is.

Field Planner, DNR

Pre-Bid Meeting– DNR Seul Choix Keeper’s Dwelling & Boathouse Reshingling

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Mandatory Pre-Bid Meeting Agenda

Project: DNR-PRD Seul Choix Keeper’s Dwelling & Boathouse Reshingling File No.: 751/25407.AGY Date: 9/03/2025 @ 1:00PM est

1. Introductions

a. Owner’s Representatives

i. DNR –

1. Julia Cogger – EUP Field Planner

2. Robb McKay – Historic Architect

3. Dennis Green – Park Supervisor

2. Disclaimer: Any answers provided at this meeting are considered clarifications of the bidding documents and are not intended to change them. If a point or concern raised during this meeting is deemed by the DNR to require a change to the bidding documents, such change will be reflected by issuance of an addendum.

3. Sign in

a. Sign in – Attendance taken at start of meeting confirm attendance with DNR.

Attendee can represent only one firm.

4. Meeting Overview

a. DNR will highlight the general conditions, common questions for bids and provide technical review of the project.

b. Project Overview:

i. Remove and dispose of shingles, felt, flashing, drip edge, and metal trim

ii. Apply new layer of 15lb felt and ice and water shield

iii. New shingles, flashing, drip edge, and metal trim painted or factory finished to match

iv. Unit price for removal, disposal and replacement with treated plywood of matching thickness

5. Project Documents

a. All contract documents are on Sigma Vendor Self Service (VSS)

b. Addendum will be posted on Sigma VSS with questions and sign-in sheet of eligible bidders.

c. Submit questions to Julia via Email

d. If there are difficulties with SIGMA on bid day: VERIFY ALL UPLOADED

DOCUMENTS ARE ACCURATE AND COMPLETE – IF ERRORS, RELOAD

– contact SIGMA HELP if problems persist, missing documents may disqualify bid. If after 1:30pm and cannot resolve – follow steps on the advertisement.

e. Use Microsoft Edge or Google Chrome to upload files.

6. Site Visits

a. Site is open for Bidders to review.

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7. Project Schedule

a. Questions Due: Friday, September 5th, no later than 2PM

i. Submit questions to Julia Cogger (DNR). Do not submit on Sigma VSS.

b. Addendum issued: Monday, September 8th by cob

c. Bids due: Wednesday, September 17th by 2:00pm Eastern

d. Contract/NTP:

i. preconstruction meeting in October

ii. progress meetings TBD at preconstruction meeting

e. Contract Time: Substantial Completion – 60 Days from NTP Project site is to be considered complete when all fencing in place and all material removed from the site for Substantial completion – only Closeout documents/final pay request remaining for Final Completion.

i. Must follow Work Schedule provided in Appendix II – 5 Days a Week 6am – pm (Comply with local noise ordinances)

f. Liquidated damages:

i. $200/day after substantial completion

ii. $200/day after final completion

8. Complete all required bid forms – Reference the Instructions to Bidders Section 00100 for a checklist

a. Bid Summary/Schedule

i. Bid Item - Lump Sum

ii. Provisional (Contingency) Allowance: $5,000 to be part of base bid for owner approved items (already listed on bid schedule)

iii. Contract will be awarded to best value bidder based on total base bid and post bid interviews

iv. Unit Prices: Treated plywood to match thickness of any rotten material requiring replacement

a. Acknowledge addendum on bid form. There will be at least one addendum to include list of pre-bid meeting attendees and remove references to Federal Wages.

b. Check boxes for Qualified Disabled Veteran (QDV) and/or Michigan Based

Business as applicable

b. Bid Bond is required for all projects over $50,000 in value, sign it – if mailing check/money order, it must be received in Lansing prior to bid due date/time

c. Payment/performance bonds required

d. Insurance requirements – see General Conditions 00700 section 3

e. Builder’s Risk Insurance is to be provided by Contractor – see General Conditions

00700 – Needs to be 100% of awarded Contract Value.

f. Asbestos Attestation

g. Proof of SPR Registration

9. Permits

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a. Contractor shall be responsible for DTMB SESC Permit, Hazardous Material Removal/proof of proper disposal, and all other permits, approvals, licenses and fees applicable to Work.

10. Testing & Inspections – N/A

11. Submittals – Contractor to provide and update Submittal Log.

a. Shop Drawings – Log provided in Project Manual

b. In addition, preconstruction submittals – schedule of values, progress schedule, list of subcontractors & suppliers, safety checklist, SESC implementation Plan

12. Samples – Submittal for shingles to be included with the bid if something other than what is listed in the specifications is to be proposed

13. Contractor Supervision - The Contractor must assign a superintendent. This representative will be the point of contact and is authorized to make financial decisions related to the project. The Contractor’s superintendent is responsible for managing and supervising the work.

a. You are responsible for your subcontractors. Superintendent must be onsite at all times when any workers, including subcontractors, are present.

b. Required to submit daily reports describing work completed. Pictures to be included in report.

c. A Superintendent Designation form will be provided prior to Pre-construction Meeting.

14. Temp Facilities

a. Portable toilet required.

b. Job trailer is allowed. Location to be approved DNR.

15. Project Meetings Required

a. Pre-construction Meeting – will be scheduled after contract executed. NTP to be issued at preconstruction meeting.

b. Progress Meetings – will be determined at pre-con meeting – Every two weeks.

c. Substantial Completion Meeting once work done and complete. Must submit letter to request substantial completion to DNR, then a punchlist walkthrough will be scheduled.

16. Warranties and O&M Manuals

a. One year guarantee, materials and labor (DTMB-0437)

17. Special Working Conditions and Project Procedures

a. Review Appendix II for DNR requirements. – Work Schedule must be followed as listed

b. Working Hours – 5 Days a week 6am – 6pm (Comply with local noise ordinances)

c. Immobilize heavy equipment every night. No tool left overnight unless locked up in job box or job site trailer.

d. Contractor must comply with special condition requirements of the DNR.

18. Lead Report included in Project Manual – Lead Based Hazard (Paint Removal and steel disposal.)

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a. Must check no asbestos in the asbestos attestation when submitting bid. Review FAQ Located in Appendix III.

19. Prevailing Wages

a. New SPR Registration Required. Review FAQ coming in Addendum 1, version in appendix V is outdated. LEO has their wage program operational now.

b. State Prevailing wages listed in Appendix V, disregard federal wage information only state wages on the project.

20. Questions on bidding requirements or general conditions before turning it over to PSC?

On-Site Pre-Bid Meeting Discussion

• M. Fischer (Gulliver Hist. Soc.): The addition to the Keeper’s Residence will require metal shingles as opposed to the proposed Asphalt Shingles for replacement.

• R. McKay (DNR): We will issue an Addendum that includes the addition with metal shingles.

• J. Cogger (DNR): A specific shingle, or approved alternate, is included in the specifications. If Contractor chooses to propose a different make and model they must include a submittal for this with their bid.

• R. Rodgers (Story Roofing): Why is 15lb roofing felt the only listed option for underlayment. May a synthetic roofing material be used instead?

• R. McKay (DNR): Yes, a synthetic roofing material may be included as a submittal with the bid. This will be noted in the Addendum.

• R. McKay (DNR): The Addendum will also include a need to have the flashing wrap into the gutter as is existing on the entry porch to the Keeper’s Residence.

• R. McKay (DNR): The Addendum will also include the need to save and reuse the decorative metal finials on the roof addition and source a new finial of like kind for the one missing.

Bidding and Contract Document (R 03/25) Project Name: Seul Choix Keeper’s Dwelling and Boathouse Reshingle File No. 751/25407.AGY

BID SUMMARY

DEPARTMENT OF TECHNOLOGY, MANAGEMENT AND BUDGET

STATE FACILITIES ADMINISTRATION

DESIGN AND CONSTRUCTION DIVISION

3111 W. St. Joseph Street Lansing, Michigan 48917

Bids must be submitted electronically at: https://sigma.michigan.gov/webapp/PRDVSS2X1/AltSelfService

FILE NUMBER

751/25407.AGY

DEPARTMENT/AGENCY

DNR- Parks and Recreation Division

CONTRACT TIME(S)

60 Days

PROJECT NAME

Seul Choix Keeper’s Dwelling and Boathouse Reshingle

LOCATION

Gulliver, MI

BID OPENING DATE

September 17th, 2025 at 2:00 pm ET

FOR AN EXAMINATION OF THE SITE CONTACT:

Julia Cogger 517-420-9749

SEE SECTION 00100 INSTRUCTIONS TO BIDDERS AND SECTION 00700 GENERAL CONDITIONS PROVIDED WITH THE BIDDING DOCUMENTS.

BID: WE PROPOSE TO FURNISH, PERFORM AND COMPLETE THE ENTIRE WORK IN ACCORDANCE WITH THE CONTRACT DOCUMENTS IN

CONSIDERATION OF THE BID PRICE (S) STATED BELOW.

FIRM NAME AND COMPLETE ADDRESS TELEPHONE NUMBER and E-MAIL ADDRESS

□ Qualified Disabled Veteran

SIGMA VENDOR NUMBER

(protected information required for processing payments)

BIDDER'S SIGNATURE AND TITLE DATE

WITNESS' SIGNATURE DATE

By signing this bid above, bidder certifies their enclosed Qualified Disabled Veteran and Michigan-Based Business Certifications.

BASE BID FROM BID SCHEDULE (Include specified Allowances):

____________________________________________________________________________Dollars $____________________ (use words) (in figures) (use words) (in figures)

A PERFORMANCE BOND AND A PAYMENT BOND ARE REQUIRED FOR ALL BIDS OVER $50,000.00. EACH BID MUST BE ACCOMPANIED BY A FIVE (5) PERCENT BID GUARANTEE. BUILDERS RISK INSURANCE IS REQUIRED TO BE PROVIDED BY THE

CONTRACTOR UNLESS OTHERWISE INDICATED IN THE BID DOCUMENTS.

BIDDERS ARE ALSO CAUTIONED TO FAMILIARIZE THEMSELVES WITH ALL OF THE OTHER CONDITIONS OF THE CONTRACT.

Project Scope of Work:

The project consists of the removal and disposal of the existing asphalt and metal shingles, flashing, drip edge, eave metal and felt underlayment on the Keeper’s Residence and the Boathouse at Seul Choix. Any rotten material is to be replaced with treated plywood of matching thickness. Apply new layer of 15lb felt of entire roof and new layer of ice and water shield membrane at all eaves and valleys. Install new shingles, drip edge and flashing. Flashing, drip edges and eave metal are to be factory finished or painted to match the color of the shingle as closely as possible. Color samples of the proposed shingle, and flashing, drip edge, eave metal finish must be submitted for owner approval before ordering or installing these materials.

The Bidder must figure its Base Bid on the specified, or Addendum-approved, materials and equipment only. No “or equal” or substitution proposals will be permitted after Bid opening, except as provided in the General Conditions.

Addenda: Bidder acknowledges receipt of Addenda: No. ___ dated: ________, No. ___ dated: ________ No. ___ dated:

https://sigma.michigan.gov/webapp/PRDVSS2X1/AltSelfService

Bidding and Contract Document (R 03/25) Project Name: Seul Choix Keeper’s Dwelling and Boathouse Reshingle

BID SCHEDULE

Base Bid Schedule - The Bidder will complete the Work and accept as full payment, for the Work items listed, the following Unit Prices and/or Item Bid Prices, as applicable:

Base Bid Item No.

Bid Quantity

Description Unit Price

Item Bid Price

2 LS

Keeper’s Residence and Boathouse Reshingle

2 ALLOWANCE AMOUNT $5,000 $5,000

TOTAL (This amount should equal the Base Bid amount on the Bid Summary Form) $

Base Bid (Sum of Item Bid Prices for all Base Bid Items):

__________________________________________________________________ Dollars $__________________________ (use words) (in figures)

1 LS

Remove/Replace 50sf deteriorated sheathing w/ treated ply to match thickness of existing deck

Bidding and Contract Document (R 03/25) Project Name: Seul Choix Keeper’s Dwelling and Boathouse Reshingle

Schedule of Alternates - The Bidder will complete (or deduct from the Contract) the parts of the Work designated by the Alternates that follow and accept in full payment (or allow in full credit) for those parts of the Work the following Item Bid Prices:

Alternate Item No.

Bid Quantity

Description Unit Price

Item Bid Price

The Bidder further acknowledges and agrees that the separate prices bid on this “Schedule of Alternates,” where they are applicable and deemed acceptable by the Owner, will be used if incorporated into the Contract when the Owner issues the Notice of Award.

Schedule of Unit Prices or Contingent Change Order Prices - The Bidder shall use this “Schedule” to quote unit prices identified in the bid documents or propose other contingent Change Order prices. The proposed Unit Prices or contingent Change Order prices set forth in this schedule, at the sole discretion of the Owner, may, or may not be incorporated into the Contract Documents. The Owner reserves the right to negotiate Unit Prices or contingent Change Order prices set forth herein prior to their possible incorporation into the Contract Documents.

Item No. Bid Quantity

Description Unit Price

Item Bid Price

1 Per Sheet Rotten material removed and disposed of and 15/32” x4’x8’ Treated Plywood

Sheet Installed to match thickness of roof underlayment

1 LS Add: Replace existing metal shingles on southwest addition of the Keeper's Dwelling Roof with metal shingles;

saving or replacing with similar in appearance existing round finials and semicircular ridge and hip caps.

28'

28'

12' 12'

18'

15'

10'

11'

10'

8'-6"

29'-6"

26'

11'

9'

6'

10'-2"

North

SEUL CHOIX : KEEPER’S RESIDENCE ROOF

Existing Chimneys

NOTES:

• REMOVE EXISTING ASPHALT AND METAL SHINGLES AND FELT

UNDERLAYMENT DOWN TO THE EXISTING SHEATHING.

• REMOVE EXISTING FLASHING AND DRIP EDGE.

• APPLY NEW LAYER OF 15 LB FELT OVER ENTIRE ROOF. INSTALL NEW LAYER

OF ICE AND WATER SHIELD MEMBRANE AT ALL EAVES AND VALLEYS

EXTENDING FROM EAVE TO A POINT 36” INSIDE OF EXISTING EXTERIOR

WALL LINE.

• INSTALL NEW SHINGLES.

• INSTALL NEW DRIP EDGE ON ENTIRE PERIMETER OF ROOF.

• INSTALL COLOR MATCHED FLASHING IN ALL VALLEYS AND AROUND ALL

ROOF PERFORATIONS INCLUDING TWO CHIMNEYS AND VENT PIPE OUTLET.

• THE ENTIRE WORK AREA SHOULD BE CAUTION TAPED/FENCED OFF SO THE

PUBLIC DOES NOT ENTER.

• ALL TOOLS, LADDERS, SCAFFOLDING, DEBRIS, ETC. SHALL BE SECURELY

STORED AT THE END OF EACH WORKDAY.

• THE GROUNDS SHALL BE CLEANED OF ALL FASTENERS AND DEBRIS AT THE

END OF THE PROJECT.

• CONTRACTOR IS RESPONSIBLE FOR ALL MEASUREMENTS AND MATERIALS.

ROOF PLAN INDICATES GENERAL ROOF

CONFIGURATION ONLY. IT WILL BE THE

RESPONSIBILITY OF THE CONTRACTOR TO

VERIFY EXACT MEASUREMENTS AND

LOCATION OF ROOF PENETRATIONS.

08.11.2025

ESTIMATED ROOF AREA: 3,360SF

SHEET 2 OF 3

This section of roof currently has metal shingles and will be removed and replaced with shingles matching the remainder of the roof.

Per Addendum #1: Add Alternate is included to replace metal shingles with like metal shingles on this southwest addition.

CoggerJ Polygonal Line

CoggerJ Line

Bidding and Contract Document (R 03/25) Project Name: Seul Choix Keeper’s Dwelling and Boathouse Roof Reshingle

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SECTION 02003 - SHINGLES AND ROOFING TILES

PART 1 - GENERAL

1.1 SUMMARY

A. SUMMARY

The work included in this section consists of, but is not limited to the removal of all existing roofing materials down to the decking, including the proper disposal of all refuse, furnishing and installing a new 30+ year shingle roof and related items on the Seul Choix Keeper’s Dwelling & Boathouse Roof.

B. Section Includes:

1. Asphalt shingles.

2. Metal Shingles.

3. Underlayment.

4. Ridge Vent.

1.2 SUBMITTALS

A. Product Data: For each type of product indicated.

B. Samples: For each exposed product and for each color and blend specified. Color choices to be selected by Owner.

C. Maintenance data.

D. Warranties: Sample of special warranties.

1.3 QUALITY ASSURANCE

A. Fire Resistance Characteristics: Where indicated, provide asphalt shingles and related roofing materials identical to those of assemblies tested for fire resistance per test method below by UL or another testing and inspecting agency acceptable to authorities having jurisdiction. Identify products with appropriate markings of applicable testing agency.

1. Exterior Fire Test Exposure: Class A; ASTM E 108 or UL 790, for application and roof slopes indicated.

1.4 WARRANTY

A. Special Warranty: Standard form in which manufacturer agrees to repair or replace asphalt shingles that fail in materials or workmanship within specified warranty period.

1 Material Warranty Period: 20 years from date of Substantial Completion, prorated, with first two years non-pro-rated.

2 Algae Discoloration Warranty Period: Asphalt shingles will not discolor 10 years from date of Substantial Completion.

Bidding and Contract Document (R 03/25) Project Name: Seul Choix Keeper’s Dwelling and Boathouse Roof Reshingle

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B. Workmanship

1. Guarantee against defects for 5 years.

1.5 EXTRA MATERIALS

A. Furnish extra materials that match products installed and that are packaged with protective covering for storage and identified with labels describing contents.

1. Asphalt Shingles: 1 complete unbroken bundle, and any remaining partial bundles upon completion of the work

2. Metal Shingles: 1 complete unbroken bundle and any remaining partial bundles upon completion of work.

PART 2 PRODUCTS

2.0 GLASS-FIBER REINFORCED ASPHALT SHINGLES

A. Laminated Strip Asphalt Shingles: ASTM D 3462, laminated, multiply overlay construction, glass fiber reinforced, mineral granule surfaced, and self-sealing.

1. Basis of Design Product: Subject to compliance with requirements, provide GAF Materials Corporation; Timberline HDZ, CertainTeed, Landmark shingles in Terra Cotta, or approved alternate;

i. Submittal for alternate shingle product must be included within the bid documents.

2. Butt Edge: Straight cut.

3. Strip Size: Manufacturer's standard.

4. Algae Resistance: Granules treated to resist algae discoloration.

5. Color and Blends: Patriot Red Algae, or approved alternate submitted with bid.

B. Hip and Ridge Shingles: Manufacturer's standard units to match asphalt shingles.

2.1 METAL SHINGLES (ADD Alternate 1)

A. Acceptable Product: Oxford Shingle aluminum roofing panels as manufactured by Classic Metal Roofing Systems, a division of Isaiah Industries, Inc. Piqua, OH, Tel. 1-800-543-8938. or Absolute Steel, Centura Steel Shingles in Mission Red Or Approved Alternate to be submitted with bid.

2.2 UNDERLAYMENT MATERIALS

A. Felt: ASTM D 226 or ASTM D 4869, Type I, asphalt saturated organic roofing felt, unperforated.

B. Ice and Eave Protection Membrane: ASTM D 1970, minimum of 40mil, rubberized asphalt sheet bonded to sheet polyethylene with strippable treated release paper mineral granule.

Bidding and Contract Document (R 03/25) Project Name: Seul Choix Keeper’s Dwelling and Boathouse Roof Reshingle

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2.3 RIDGE VENTS

A. Rigid Ridge Vent: Manufacturer's standard, rigid section high-density polypropylene or other UV-stabilized plastic ridge vent with nonwoven geotextile filter strips and external deflector baffles; for use under ridge shingles.

1. Basis of Design Product: Subject to compliance with requirements, provide product indicated on Drawings or comparable product by one of the following:

a. Air Vent, Inc.; a Gibraltar Industries company.

b. Cor-A-Vent, Inc.

c. GAF Materials Corporation.

d. Lomanco, Inc.

e. Mid-America Building Products.

f. Obdyke, Benjamin Incorporated.

g. Owens Corning.

2 Minimum Net Free Area: 18 inches per sq. ft.

3 Width: 12 inches.

2.4 ACCESSORIES

A. Asphalt Roofing Cement: ASTM D 4586, Type II, asbestos free.

B. Roofing Nails: ASTM F 1667; aluminum, stainless steel, copper, or hot-dip galvanized steel wire shingle nails, minimum 0.120inch(3mm) diameter, smooth shank, sharp pointed, with a minimum 3/8inch(9.5mm) diameter flat head and of sufficient length to penetrate 3/4 inch (19 mm) into solid wood decking or extend at least 1/8 inch (3 mm) through OSB or plywood sheathing.

1. Where nails are in contact with metal flashing, use nails made from same metal as flashing.

C. Felt Underlayment Nails: Aluminum, stainless steel, or hot-dip galvanized steel wire with low profile capped heads or disc caps, 1inch (25mm) minimum diameter.

2.5 METAL FLASHING AND TRIM

A. General:

1. Sheet Metal: To be color matched and approved by owner.

B. Fabricate sheet metal flashing and trim to comply with recommendations in SMACNA's "Architectural Sheet Metal Manual" that apply to design, dimensions, metal, and other characteristics of the item.

2.6 OTHER MISCELLANEOUS MATERIALS:

A.. All other materials not specifically described but required for a complete and proper installation of the work of this Section, shall be new, first quality of their respective kinds, and as selected by the Contractor subject to approval of the Owner.

Bidding and Contract Document (R 03/25) Project Name: Seul Choix Keeper’s Dwelling and Boathouse Roof Reshingle

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PART 3 EXECUTION

3.1 UNDERLAYMENT INSTALLATION

A. General: Comply with underlayment manufacturer's written installation instructions applicable to products and applications indicated unless more stringent requirements apply.

B. Single-Layer Felt Underlayment: Install on roof deck parallel with and starting at the eaves. Lap sides a minimum of 2 inches (50 mm) over underlying course. Lap ends a minimum of 4 inches (100 mm). Stagger end laps between succeeding courses at least 72 inches (1830 mm). Fasten with felt underlayment nails.

1. Install felt underlayment on roof deck not covered by self-adhering sheet underlayment. Lap sides of felt over self-adhering sheet underlayment not less than 3 inches (75 mm) in direction to shed water.

Lap ends of felt not less than 6 inches (150 mm) over self-adhering sheet underlayment.

2. Install fasteners at no more than 36 inch (900 mm) o.c.

C. Self-Adhering Sheet Underlayment: Install, wrinkle free, on roof deck. Comply with low-temperature installation restrictions of underlayment manufacturer if applicable. Install at locations indicated on Drawings, lapped in direction to shed water. Lap sides not less than 31/2 inches (89 mm). Lap ends not less than 6 inches (150 mm) staggered 24 inches (600 mm) between courses. Roll laps with roller. Cover underlayment within seven days.

3.2 METAL FLASHING INSTALLATION

A. General: Install metal flashings and other sheet metal according to recommendations in ARMA's "Residential Asphalt Roofing Manual" and asphalt shingle recommendations in NRCA's "The NRCA Roofing and Waterproofing Manual."

3.3 ASPHALT SHINGLE INSTALLATION

A. General: Install asphalt shingles according to manufacturer's written instructions, recommendations in ARMA's "Residential Asphalt Roofing Manual," and asphalt shingle recommendations in NRCA's "The NRCA Roofing and Waterproofing Manual."

B. Install starter strip along lowest roof edge, consisting of an asphalt shingle strip at least 7 inches (175

mm) wide with self-sealing strip face up at roof edge.

1. Extend asphalt shingles 1/2 inch (13 mm) over fascia at eaves and rakes.

2. Install starter strip along rake edge.

C. Install first and remaining courses of asphalt shingles stair-stepping diagonally across roof deck with

6inch (150mm) manufacturer's recommended offset pattern at succeeding courses, maintaining uniform exposure.

D. Install first and remaining courses of asphalt shingles stair-stepping diagonally across roof deck with manufacturer's recommended offset pattern at succeeding courses, maintaining uniform exposure.

Bidding and Contract Document (R 03/25) Project Name: Seul Choix Keeper’s Dwelling and Boathouse Roof Reshingle

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E. Install asphalt shingles by single-strip column or racking method, maintaining uniform exposure.

Install full-length first course followed by cut second course, repeating alternating pattern in succeeding courses.

F. Fasten asphalt shingle strips with a minimum of five roofing nails located according to manufacturer's written instructions.

1. Where roof slope is less than 4:12, seal asphalt shingles with asphalt roofing cement spots.

2. When ambient temperature during installation is below 50 deg F (10 deg C), seal asphalt shingles with asphalt roofing cement spots.

G. Closed-Cut Valleys: Extend asphalt shingle strips from one side of valley 12 inches (300 mm) beyond center of valley. Use one-piece shingle strips without joints in valley. Fasten with extra nail in upper end of shingle. Install asphalt shingle courses from other side of valley and cut back to a straight line 2 inches (50 mm) short of valley centerline. Trim upper concealed corners of cutback shingle strips.

H. Ridge Vents: Install continuous ridge vents over asphalt shingles according to manufacturer's written instructions. Fasten with roofing nails of sufficient length to penetrate sheathing.

I. Ridge Cap Shingles: Maintain same exposure of cap shingles as roofing shingle exposure. Lap cap shingles at ridges to shed water away from direction of prevailing winds. Fasten with roofing nails of sufficient length to penetrate sheathing.

1. Fasten ridge cap asphalt shingles to cover ridge vent without obstructing airflow.

END OF SECTION

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