Sherburne Roof1.docx

PROJECT SCOPE

Facility:

Sherburne

Facility Address:

50 North Main Street Sherburne NY 13460

Point of Contact:

Lucas Hathaway Contact Phone Number: 607-427-1359 607-240-4639

Project Title:

Roof Replacement Summary of Work:

Replace the entire Roof System over Residence

DESCRIPTION:

(Roof Replacement Project.) The vendor shall provide all labor and materials necessary to complete the work in a professional manner according to scope of work and architectural drawings if supplied. Work is to be completed within 60 days of award, unless modified below. This is a NYS Public Works project and prevailing wages are to be paid. Refer to attached specification for the following scope of work. Site must be cleaned, and all materials secured at the end of each work day. Absolutely no scraps, especially fasteners, are to be left unsecured. Upon completion of (Roof Replacement), before removal of equipment and scaffolding, contractor is to schedule a quality control and quality assurance inspection with Plant Superintendent.

SCOPE OF WORK includes, but is not necessarily limited to the following:

Remove the existing asphalt shingle roofing system complete down to the existing wood decking. Any damaged decking will be quoted and result in a change order. All material to be taken off site.

Provide and install a new 30-year asphalt shingle roofing system complete, including all flashings, underlayment’s, ice barriers, venting, accessories, and other roofing materials as required for a complete system.

Remove and replace exhaust vent covers as per existing, typical. Exhaust vents must be installed to go above the roof line per code requirements Remove and replace drip edge at all eaves and gables, typical.

Flash all penetrations, typical.

Remove and replace ridge vents on all ridges, typical. Verify soffits are continuous vented along eave line everywhere. Venting is required for roof systems over conditioned spaces.

No asbestos-containing materials may be used.

Section Includes:

Asphalt shingles.

Underlayment.

Ridge vents.

Metal flashing and trim.

General Requirements.

Procurement and Contracting Requirements.

CLOSEOUT SUBMITTALS

Maintenance data.

QUALITY ASSURANCE

Manufacturer Qualifications: Provide all primary roofing products, including shingles, underlayment, leak barrier, and ventilation, by a single manufacturer.

WEATHER CONDITIONS

Proceed with work only when existing and forecasted weather conditions will permit work to be performed in accordance with manufacturer’s recommendations.

If any roof portions are to be left exposed overnight, they are to be tarped or when not under construction, they will be properly sealed to prevent any moisture from penetrating inside the residence. Vendor will be responsible for damages incurred.

DELIVERY, STORAGE, AND HANDLING

Call supervisor from Finger Lakes DDSO for Dumpster placement FIRST.

Store all products in manufacturer’s unopened, labeled packaging until they are ready for installation.

Store products in a covered, ventilated area, at temperature not more than 110 degrees F (43 degrees C); do not store near steam pipes, radiators, or in direct sunlight.

Store bundles on flat surface. Maximum stacking height shall not exceed manufacturer’s recommendations.

Store and dispose of solvent-based materials in accordance with all federal, state, and local regulations.

WARRANTY

When warranties are required, verify with Owner's counsel that warranties stated in this article are not less than remedies available to Owner under prevailing local laws.

Manufacturer's Warranty: Manufacturer agrees to repair or replace asphalt shingles that fail within specified warranty period. Products shall meet all of manufacturer’s requirements for proper installation to insure full warranty coverage.

Material Warranty Period: 30 years from date of Substantial Completion, prorated, with first ten years nonperforated.

Wind-Speed Warranty Period: Asphalt shingles will resist blow-off or damage caused by wind speeds of up to 100 for 15 years from date of Substantial Completion.

Algae-Resistance Warranty Period: Asphalt shingles will not discolor for 10 years from date of Substantial Completion.

Workmanship Warranty Period: Two years from date of Substantial Completion.

PRODUCTS

See Editing Instruction No. 1 in the Evaluations for cautions about named manufacturers and products. For an explanation of options and Contractor's product selection procedures, see Section 016000 "Product Requirements."

PERFORMANCE REQUIREMENTS

Exterior Fire-Test Exposure: Provide asphalt shingles and related roofing materials identical to those of assemblies tested for Class A fire resistance according to ASTM E 108 or UL 790 by Underwriters Laboratories, Inc. or another testing and inspecting agency acceptable to authorities having jurisdiction. Identify products with appropriate markings of applicable testing agency.

REGULATORY REQUIREMENTS

Retain this article for Class A roof assemblies. Glass-fiber-reinforced asphalt shingles complying with ASTM D 3462/D 3462M have a Class A rating according to ASTM E 108 or UL 790. Verify that underlayment products comply with requirements.

Install all roofing products in accordance with all federal, state and local building codes.

All work shall be performed in a manner consistent with current OSHA guidelines.

GLASS-FIBER-REINFORCED ASPHALT SHINGLES

See "Asphalt-Shingle Manufacturers" Table at end of the Evaluations for a list of manufacturers' products. Use the table in combination with manufacturers' catalogs or product data.

Laminated-Strip Asphalt Shingles: ASTM D 3462/D 3462M, laminated, multi-ply overlay construction, glass-fiber reinforced, mineral-granule surfaced, and self-sealing.

Retain "Basis-of-Design Product" Subparagraph and list of manufacturers below to identify a specific product or a comparable product from manufacturers listed. Retain option and delete insert note if manufacturer's name and model number are indicated on Drawings.

Basis-of-Design Product: Subject to compliance with requirements, provide “Timberline HD Lifetime High-Definition Shingles” by GAF-ELK Materials Corporation: www.gaf.com or comparable product by one of the following:

CertainTeed Corporation.

Approved equal.

Butt Edge: Straight cut.

Strip Size: Manufacturer's standard Retain "Algae Resistance" Subparagraph below if required. Manufacturers usually have a range of asphalt shingles with algae-resistant granules.

Algae Resistance: Granules resist algae discoloration.

Color and Blends: As selected by House Director from manufacturer's full range.

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

UNDERLAYMENT MATERIALS

Shingle Underlayment: UV-resistant polypropylene, polyolefin, or polyethylene polymer fabric with surface coatings or treatments to improve traction underfoot and abrasion resistance; evaluated and documented to be suitable for use as a roof underlayment under applicable codes by a testing and inspecting agency acceptable to authorities having jurisdiction.

Retain "Basis-of-Design Product" Subparagraph and list of manufacturers below to identify a specific product or a comparable product from manufacturers listed. Retain option and delete insert note if manufacturer's name and model number are indicated on Drawings.

Basis-of-Design Product: Subject to compliance with requirements, provide “Tiger Paw Roof Deck Protection” by GAF-ELK Materials Corporation: www.gaf.com or comparable product by one of the following:

CertainTeed Corporation.

Approved equal.

Self-adhering, polymer-modified underlayment is used to resist leaks from roof areas forming ice dams and other roof areas vulnerable to leakage. Retain "Self-Adhering Sheet Underlayment, Granular Surfaced," "Self-Adhering Sheet Underlayment, Polyethylene Faced," or "Self-Adhering Sheet Underlayment, High Temperature" Paragraph below to suit Project.

Retain thickness option in "Self-Adhering Sheet Underlayment, Granular Surfaced" Paragraph below to suit Project. ASTM D 1970/D 1970M requires a minimum thickness of 40 mils (1.0 mm); however, products vary in thickness.

Ice Barrier: ASTM D 1970/D 1970M, minimum of 40-mil- (1.0-mm-) thick sheet; glass-fiber-mat-reinforced, SBS-modified asphalt; mineral-granule surfaced; with release backing; cold applied.

Retain "Basis-of-Design Product" Subparagraph and list of manufacturers below to identify a specific product or a comparable product from manufacturers listed. Retain option and delete insert note if manufacturer's name and model number are indicated on Drawings.

Basis-of-Design Product: Subject to compliance with requirements, provide “Weather Watch Leak Barrier” by GAF-ELK Materials Corporation: www.gaf.com or comparable product by one of the following:

CertainTeed Corporation.

Approved equal.

ROOF AREA VENTILATION: Ventilation of the attic space must be provided to meet the requirements of NYSRC806.2 , If home is power vented then ridge vent is to be omitted Retain this article if ridge venting is required and is not specified in Section 077200 "Roof Accessories."

Ridge Vent: Manufacturer's standard, rigid section high-density polypropylene or other UV-stabilized plastic ridge vent for use under ridge shingles.

Retain "Basis-of-Design Product" Subparagraph and list of manufacturers below to identify a specific product or a comparable product from manufacturers listed. Retain option and delete insert note if manufacturer's name and model number are indicated on Drawings.

Basis-of-Design Product: Subject to compliance with requirements, provide “Cobra Exhaust Vent” by GAF-ELK Materials Corporation: www.gaf.com or comparable product by one of the following:

CertainTeed Corporation.

Approved equal.

Minimum Net Free Area: 12.5 square inches.

Width: 11.5 inches Features:

Nonwoven geotextile filter strips prevent insect infestation and block rain and snow entry.

Nonwoven geotextile filter strips.

Some ridge vents add an external deflector baffle to further limit wind-blown rain and snow entry.

External deflector baffles.

ACCESSORIES

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

Roofing Nails: ASTM F 1667; aluminum or hot-dip galvanized-steel wire shingle nails, minimum 0.120-inch- (3-mm-) diameter, sharp-pointed, with a minimum 3/8-inch- (9.5-mm-) 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.

Revise "Shank" Subparagraph below to suit Project. NRCA recommends barbed- or deformed-shank nails for added pullout resistance. ARMA recommends smooth-shank nails, but allows barbed-shank nails. Some asphalt-shingle manufacturers recommend barbed-shank nails.

Shank: Barbed.

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

Synthetic-Underlayment Fasteners: As recommended in writing by synthetic-underlayment manufacturer for application indicated.

METAL FLASHING AND TRIM

Sheet Metal: Aluminum, color to match shingles.

Thickness: 0.024 inches 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.

EXECUTION

EXAMINATION

PREPARATION

Remove all existing roofing system complete down to the existing roof decking.

Verify that the deck is dry, sound, clean and smooth. It shall be free of any depressions, waves, and projections. Cover with sheet metal, all holes over 1 inch (25 mm) in diameter, cracks over ½ inch (12 mm) in width, loose knots and excessively resinous areas.

Replace damaged decking with new materials. This will require a Change Order. Notify Supervisor immediately upon finding damage.

Clean deck surfaces thoroughly prior to installation of ice barrier and shingle underlayment.

Eaves: The eaves are in good condition and can remain as is, however, the Vendor will ensure that they are installed properly and adequately vented with all parts present and in place.

Ridge Vents: cut continuous vent slots through the roof decking, stopping 6 inches from each end of the ridge.

On roofs without a ridge board, make a slot 2 inches wide, centered on the ridge.

On roofs with a ridge board, make two slot 1-3/4 inches wide, one on each side.

Eliminate old venting in accordance with industry/trade standards.

UNDERLAYMENT INSTALLATION

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

Shingle Underlayment: Install on roof deck parallel with and starting at the eaves. Lap sides and ends and treat laps as recommended in writing by manufacturer. Stagger end laps between succeeding courses at interval recommended in writing by manufacturer, but not less than 36 inches. Fasten according to manufacturer's written instructions. Cover underlayment within period recommended in writing by manufacturer.

Install in single layer on roofs sloped at 4:12 and greater.

Install in double layer on roofs sloped at less than 4:12.

Ice Barrier: Install, wrinkle free, on roof deck over plywood. Comply with low-temperature installation restrictions of underlayment manufacturer if applicable. Install lapped in direction that sheds water. Lap sides not less than 3-1/2 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 Retain first subparagraph below if primer is required to enhance adhesion to concrete or masonry surfaces, such as chimneys or walls.

Prime concrete and masonry surfaces to receive self-adhering sheet underlayment.

Eaves: Extend from edges of eaves 36 inches (914 mm) minimum beyond interior face of exterior wall, but not less than 72 inches overall from edge of eaves.

Rakes: Extend from edges of rake 36 inches (914 mm) beyond interior face of exterior wall.

Valleys: Extend from lowest to highest point 18 inches (450 mm) on each side.

Hips: Extend 18 inches (450 mm) on each side.

Ridges: Extend 36 inches (914 mm) on each side without obstructing continuous ridge vent slot.

Sidewalls: Extend beyond sidewall 18 inches (450 mm) and return vertically against sidewall not less than 6 inches (100 mm). Lap the membrane over the roof deck underlayment.

Dormers, Chimneys, Skylights, and Other Roof-Penetrating Elements: Extend beyond penetrating element 18 inches (450 mm) and return vertically against penetrating element not less than 6 inches (100 mm).

Roof Slope Transitions: Extend 18 inches (450 mm) on each roof slope.

METAL FLASHING INSTALLATION

General: Install metal flashings according to recommendations in ARMA's "Residential Asphalt Roofing Manual" and NRCA's "NRCA Guidelines for Asphalt Shingle Roof Systems."

At Rake Edges: Install metal flashing over ice barrier and underlayment; set tight to rake boards; lap joints at least 2 inches and seal with plastic cement; secure with nails.

Step Flashings: Install with a head lap of 2 inches (50 mm) and extend over the underlying asphalt shingle and up the vertical surface. Fasten to roof deck only.

Cricket or Backer Flashings: Install against the roof-penetrating element extending concealed flange beneath upslope asphalt shingles and beyond each side.

Install a cricket or saddle on the ridge side of any chimney or penetration more than 30 inches wide as measured perpendicular to the slope.

The southeast corner valley will require construction of a cricket.

Rake Drip Edges: Install gable drip-edge flashings over underlayment and fasten to roof deck.

Eave Drip Edges: Install eave drip-edge flashings below underlayment and fasten to roof sheathing.

Pipe Flashings: Form flashing around pipe penetrations and asphalt shingles. Fasten and seal to asphalt shingles as recommended by manufacturer.

ASPHALT-SHINGLE INSTALLATION

General: Install asphalt shingles according to manufacturer's written instructions, recommendations in ARMA's "Residential Asphalt Roofing Manual," and recommendations in NRCA's "NRCA Guidelines for Asphalt Shingle Roof Systems."

Install starter strip along lowest roof edge, consisting of an asphalt-shingle strip with self-sealing strip face up at roof edge.

Extend asphalt shingles 3/4 inch (19 mm) over fasciae at eaves and rakes.

Install starter strip along eave edge.

Retain first paragraph below for laminated-strip asphalt shingles. Diagonal installation is recommended by NRCA. Insert a particular offset pattern if required.

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.

The IBC and the IRC both state that asphalt shingles have the minimum number of fasteners required by manufacturer and comply with wind-resistance requirements based on Project location. Basic fastening for most asphalt shingles requires four roofing nails; some asphalt shingles require five. The IBC and the IRC both require special methods of fastening where roof slope exceeds 21:12. Verify requirements of authorities having jurisdiction.

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

Retain subparagraph below if asphalt shingles are installed in cold weather and could be subject to high winds. Factory-applied, self-sealing strips do not activate at lower temperatures.

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

Do not nail asphalt shingles within 6 inches (150 mm) of valley center.

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 cut-back shingle strips.

Do not nail asphalt shingles within 6 inches (150 mm) of valley center.

Set trimmed, concealed-corner asphalt shingles in a 3-inch- (75-mm-) wide bed of asphalt roofing cement.

Retain "Open Valleys" Paragraph below if required. Some manufacturers do not recommend open valleys, but will accept them. Verify acceptance of valley treatment with manufacturers.

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. Install along full length of ridge, including uncut areas.

Hip and Ridge 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.

Retain subparagraph below if retaining ridge vents.

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

EXHAUST VENT COVER INSTALLATION

General: Install exhaust vent covers according to manufacturer's written instructions, recommendations in ARMA's "Residential Asphalt Roofing Manual," and recommendations in NRCA's "NRCA Guidelines for Asphalt Shingle Roof Systems."

PROTECTION

Protect installed products from foot traffic until completion of the project.

Any roof areas that are not complete by the end of the workday are to be protected from moisture and contaminants.

GENERAL REQUIREMENTS:

0. Bid price is to include all materials, labor, disposal of materials fees, third party inspections, and site clean-up. Vendor must demonstrate a track record of completing job or otherwise show that the are competent to do the job in order to be awarded the work.

0. Final acceptance of completed job will be provided by the appropriate Maintenance Supervisor. Failure to complete the job satisfactorily will impact a vendor’s ability to bid on future OPWDD jobs.

0. OPWDD is a self-permitting agency per 19 NYCRR, Section 1201.2(d)(1). As such most required inspections are preformed by state employees. But where the work being done requires third party inspection (such as electrical work) hiring and paying for the third-party inspector shall be the responsibility of the vendor. In the case of inspections to be performed by the State, Contractor shall notify the inspector at least two working days in advance of when the inspections are needed. If there are any questions about what inspections are required for this job, discussed with the point of contact listed above. Job shall not be considered complete until proof of all required inspections is provided by vendor.

0. This is a NYS Public Works project and prevailing wages are to be paid.

0. Quote shall include a start time expressed in days post issuance of a PO.

Work is to be done between the hours of _ __ and _ __, Monday through Friday unless otherwise arraigned with Maintenance Supervisor in advance.

Work must be completed within 60 days of receiving the purchase order. Jobs outstanding past the 60 day period will causes bids on other Broome DDSOO jobs to be rejected until the backlog is resolved. Exceptions will be made for those jobs whether vendor can demonstrate to OPWDD that the delay is due to supply chain issues or issues that are the responsibility of OPWDD.

All tools must be controlled at all times and debris, tools and materials secured and stored at the end of each workday in a manner acceptable to Maintenance Supervisor/Safety Department.

Any unforeseen conditions that may alter the established price are to be reported to the Facility Contact listed above immediately upon discovery.

Smoking is prohibited by contractors at all residential and program sites owned by OPWDD.

At least one week prior to the commencement of the work, there shall be a meeting with local OPWDD Office of Property Supports and Emergency Services staff to discuss specific safety requirements needed to be adhered to during the work period and to review and sign the work safety plan.

Safety Data Sheets as applicable will be provided to the Plant Superintendent prior to the start of work and a copy maintained at the property.

All applicable environmental testing associated with this work will be provided to the contractor prior to start of work. No suspected/possible ACM materials shall be disturbed unless there is a written testing report showing that it is clean.

Lawn Damage/Property Damage: If the delivery of materials or any other work necessitates the contractor, his suppliers, or sub-contractors to drive on the lawn for ANY reason, the contractor shall be held responsible for the repair of the lawn. Any property damage caused by work performed is to be corrected to the condition existing prior to start of the job.

Continuity of Work/Communication/Scheduling: Once the job has begun, it is to be worked on continuously until completed. If there are any delays, even if due to inclement weather, a Work Control Representative MUST be contacted.

Facility Safety: The Facility will be occupied during the job. For this reason, the contractor must take all reasonable care to safeguard building occupants. At no time can any exhaust or appliance vent outlet or air inlet be blocked without shutting off that equipment. If you create a Carbon Monoxide event in an occupied house because you fail to properly plan for your work, you will be financially responsible for all responding agencies and staff invoices and costs. The contractor shall ensure all tools, materials and other items are picked up, removed or stored and are safely secured at the end of each workday. Any ladders, scaffolding or lifts used in conjunction with this job are to be stored to the satisfaction of the Maintenance Supervisor at the end of the day. The work as indicated above shall be scheduled as not to interfered with other functions of the facility unless arranged and approved at least one week in advance.

All work performed as part of this job is to be coordinated with the Facility Contact listed above.

SITE VISIT

A site visit is mandatory. The site visit date is scheduled for DATE AND TIME at the project site. All prospective bidders are encouraged to attend.

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