A04 Withus and Maker House SOW.pdf

STATEMENT OF WORK – PART A

New Hardwood Floors

CAPE COD NATIONAL SEASHORE

Withus House, 850 Nauset Road, Eastham, MA

October 20, 2020

Scope This project is for the installation of new oak hardwood floors over all painted wood floors on the first and second floors of the house, along with the stair treads between floors.

Minimize disturbance to the site to the greatest extent possible unless directed otherwise.

Provide all labor, materials, tools, and equipment required to complete this work.

All work performed under this contract shall be done in accordance with applicable local, State, and Federal codes, bylaws and ordinances in effect at the time of this work.

Measurements Estimated dimensions and quantities are provided as a guide only. The contractor is responsible for verifying all measurements and dimensions. Take all measurements for quantities of materials and note existing conditions for the installation of new work. All ancillary work, cutting and /or removal of existing work necessary for the installation of new work shall be done as required as part of this contract.

Site Examination It is the responsibility of the contractor to examine the work site to confirm existing conditions and required quantities prior to submitting a proposal on this project. See provision 52.236-27 for scheduled site visit time, date and meeting location.

Work Elements Work to be performed includes:

Remove thresholds between rooms to be refloored (approximately 6);

Cut edges of thresholds to remain at front door, basement door and entries to Room #7 vertical to allow new flooring to butt up flush (approximately 4);

Cut edges of thresholds to remain at closets vertical to allow new flooring to butt up flush (approximately 10);

Replace thresholds at room #3, room #4, room #12 doorways with new hardwood thresholds (approximately 4);

Prepare existing floors to receive new hardwood floors;

Install hardwood floors over existing painted floors (approximately 1700 square feet);

Remove and replace floor heating registers (approximately 15);

Install shoe molding on floor at walls (approximately 350 lf);

Remove newel post, balusters and handrail;

Remove molding and skirtboards, cut nosing of stair treads flush with risers;

Install new hardwood stair treads and skirtboards to match;

Reinstall newel post, balusters and handrail;

Install new molding at all stairs.

Utilities and Services Provide and maintain sanitary facilities for workers.

The contractor shall be responsible for locating and preventing damage to known utilities. If damage occurs, repair utility at no additional expense to the Government. Notify Contracting Officer and utility companies of proposed locations and times for excavation. If damage occurs to an unknown utility, repair utility and immediately notify Contracting Officer.

Water Service: Water from existing water system is normally available for use without metering and without payment of use charges. Provide connections and extensions of services as required for construction operations without any additional permit costs. If water is not available, the contractor shall supply temporary potable water adequate to the needs of the contract at no additional cost to the contract for project use.

Electric Power Service: Electric power from existing system is normally available for use during construction without metering and without payment of use charges. Provide connections and extensions of services as required for construction operations without any additional permit costs.

Arrange with utility company and government for time when service can be interrupted, if necessary, to make connections for temporary services. If electric power is not available, the contractor shall provide temporary power at no additional cost to the contract for project use.

Permits and Approvals Obtain all required permits for the performance of the work specified herein at no additional cost to the contract.

Submittals and Deliverables Submit safety plan that complies with OSHA standards within 10 business days after award.

Propose location of stockpile area for NPS approval.

Provide detailed proposed project schedule prior to commencing any work on site.

Product Data: provide manufacturers' literature on characteristics of materials, maintenance, parts list and warranties. Submit only pages which are pertinent. Mark each copy to identify pertinent products referenced to the specifications. Provide manufacturers’ literature, drawings, and technical data sufficient to fully define the material and to demonstrate full compliance with the contract specifications.

Manufacturer's Installation Instructions: Include special precautions from manufacturer.

Drawings: submit drawings as appropriate.

Materials: submit representative samples of all materials to be used in sizes adequate to define the purpose of the material and determine its suitability.

Manufacturer's certificate: certify that products meet or exceed specified requirements.

Perform the work of this contract.

Safety and Environmental Protection Requirement This building was constructed prior to 1978, therefore, work may disturb lead-based paint. It is not the government’s intention to abate lead paint under this contract. The contractor shall protect contractor’s personnel and the public during the performance of any work that may disturb lead-based paint. Waste materials meeting the criteria of hazardous waste shall be disposed of as such in a legal manner.

Maintain project area in a neat, orderly and safe condition at all times. All work areas shall be made secure and safe after hours, on weekends and holidays.

All debris and removed material are the property of the contractor and shall be recycled or legally disposed of in a manner that is consistent with local and state regulations. All waste, trash and debris generated as part of this project must be secured from wind and rodent action.

Take all necessary precautions to prevent fire during construction. Provide and maintain suitable fire protection equipment. Protection Equipment Required: Furnish a minimum of one UL Class 2A, 2-1/2 gallon water type stored pressure extinguisher, and one UL Class 10, Type I, 15 pound A:B:C carbon dioxide extinguisher at each work site.

No radios or smoking (including vaping) will be allowed on the job site. Confined space entry, fall protection and hardhat use will conform to safety rules and regulations.

The contractor’s representative shall have an updated First Aid card. Fall protection plan shall be posted or made available prior to start of elevated work or any other time it is required.

The contractor is responsible for securing the site and the work of the contract. During the execution of this contract, the contractor shall conform to the rules and regulations as set forth by OSHA Safety and Health Standards. Provide barriers, temporary fencing, signage, etc. wherever work could cause injury to workers or visitors, and ensure that ladders, scaffolding and equipment are secured from public access during off-hours.

Provide and maintain environmental protection during the life of the Contract to control pollution or to correct conditions that develop during construction.

It is the contractor’s responsibility to ensure that any disturbance or damage done during the course of this project to the existing utilities, landscape, building or government materials, shall be repaired or restored to its original condition by the contractor at the contractor’s expense prior to completion of the job.

Work and Weather Limitations Regular work hours are between 7AM to 4PM Monday through Friday. Unless otherwise requested and approved in advance, no work shall take place after hours, on holidays or weekends. Requests must be made 48 hours in advance.

The contractor shall be responsible for storage of all materials and equipment; the Park must approve the contractor’s use of any space on the site in advance.

Proceed with project only when existing and forecasted weather conditions will permit work to be performed according to manufacturers' recommendations and warranty requirements. Ensure temperatures are over the minimum installation temperatures recommended by material manufacturers.

Security and Safety The contractor shall have unescorted access to the construction site. The contractor shall coordinate with the COR for access to all locations.

The COR or the COR’s alternate will not be required to be at the site location during all working hours.

Regulations

• Occupational Safety and Health Administration (OSHA)

• National Institute for Occupational Safety and Health (NIOSH)

• Massachusetts General Laws and Department of Environmental Protection regulations and statutes

• Town Board of Health Regulations

Materials Furnish, supply, and install all necessary materials to successfully complete the project requirements.

Unless explicitly indicated, new materials shall match those being replaced. Comply with the standards of the Wood Flooring Manufacturers Association and National Oak Flooring Manufacturer's Association.

Substrate Filler, if needed: smooth troweling, fast setting, non-shrinking, non-cracking, premixed filler with Portland cement and polymeric modifiers (white latex) and a minimum compressive strength of 20 MPa (2900 psi) at 28 days (or 27.6 MPa (4000 psi) where wood is glued directly to substrate) for patching / filling / levelling substrates, with type to suit substrate conditions as recommended by adhesive /wood flooring manufacturer.

Resilient/acoustical underlayment shall be moisture resistant 1/8" to 1/4" thick closed multi-cell polyethylene resilient sheet foam or other type with density and permeability as recommended or approved by wood flooring manufacturer.

New floor heating registers shall match existing in material and appearance, to be selected by COR from samples provided by contractor.

Flooring material shall be factory prefinished 3/4" x 2-1/4" No. 1 Common plain sawn solid oak hardwood flooring. COR to select color and appearance from samples provided by contractor. Factory finish shall include a penetrating non-fading wood stain with top coat for high traffic use and maximum transparency.

New thresholds shall be same material as flooring, factory prefinished oak, compatible with flooring and supplied by same manufacturer as flooring.

Stair treads shall be same material as flooring, factory prefinished one-piece oak flooring complete with solid bullnose nosing by full tread width for both contained (boxed) and uncontained (single return) treads, supplied by same manufacturer as flooring or compatible in all salient characteristics.

Stair tread at top of stairs shall meet elevation of new flooring flush with no lip and no transition gradient.

Stair tread adhesive shall be as recommended or approved by wood flooring manufacturer.

Moldings and Trim: factory wood of species, grade, and finish to match wood flooring and/or pre-finished metal as selected by the COR in full widths, lengths, and profiles to suit conditions as required.

Provide all available coordinating transitions and molding pieces designated for the specified wood collection to meet installation application for finishing and transitioning to other flooring products.

Fasteners shall be as recommended by flooring manufacturer.

Shoe molding shall be solid wood to match color of existing baseboard: wood to cover gap at walls and other fixed vertical surfaces. Size to be selected by COR from samples provided by contractor.

Skirtboards shall be solid wood to match existing in material and appearance, painted to match existing trim color.

Paint primers, sealers, and undercoats shall be suitable for the substrate and compatible with the finish coat and each other. Finish coat paint shall be semi-gloss enamel, color to be selected by COR from samples provided by contractor. Acceptable paint manufacturers include: Benjamin Moore & Co:

www.benjaminmoore.com., PPG Architectural Finishes, Inc: www.ppgaf.com., Sherwin-Williams Company: www.sherwin-williams.com.

Demolition Before beginning any demolition or deconstruction work, inspect and examine the site to determine the extent of the work. Take necessary precautions to avoid damage to existing items, including trees, to remain in place, to be reused, or to remain property of Government.

Provide waste-collection containers in sizes adequate to handle waste from construction operations.

Comply with requirements of agency(ies) with jurisdiction.

Unless otherwise indicated, disposal of removed materials shall be the contractor's responsibility. All debris and removed material are the property of the contractor and shall be recycled or legally disposed of in a manner that is consistent with local and state regulations.

Installation Comply with the standards of the Wood Flooring Manufacturers Association and National Oak Flooring Manufacturer's Association. Follow the manufacturers recommendations for installation over existing flooring.

Flooring Acclimate new flooring materials inside the house for a minimum of 72 hours prior to commencement of work.

Countersink any raised nails, screw down loose boards and replace any warped boards that can’t be made level with equivalent material to satisfaction of COR.

Remove floor heating registers. Remove thresholds where indicated on drawings. Fill any voids in existing flooring greater than ½” with equivalent material to satisfaction of COR. Apply substrate filler, if needed, as determined by manufacturer’s recommendations.

Cut edges of all thresholds to remain vertical to accommodate new flooring in a tight uniform fit.

Sweep, drymop and vacuum the floor well to remove all dust and dirt.

Install underlayment as recommended or approved by wood flooring manufacturer.

Install wood flooring in accordance with flooring manufacturer's directions and to areas and patterns scheduled and detailed on drawings.

Blind-nail flooring to sub floor with power driver through the tongue using 1½"-2” fasteners. Face-nail boards where needed using 6d-8d casing or finish nails. Fasteners shall be spaced every 6”-8” on blindnailing, or every 10”-12” on face-nailing.

Use space fasteners at locations as recommended by manufacturer.

Use long flooring strips at entrances and doorways. Incorporate as many short pieces as possible at random in the floor. Do not group them in one area.

Unless otherwise indicated, install flooring symmetrically about room center line and as directed on plans, continuous through doorways, and cut to fit all projections, with all joints straight, true to plane, and with minimum half plank width at perimeters. Avoid “H” pattern. Stagger end joint locations a minimum of 10 to 12" and seal all cut ends as recommended by manufacturer.

For a blended appearance, select pieces randomly from several boxes.

Frame hearth using mitered joints at the corners.

At change of direction, provide tongue and groove engagement either with a slip tongue, or factory edge or end.

Provide expansion void at perimeter vertical interfaces (walls, millwork, adjacent floor finishes, and at openings as required) of width and in accordance with flooring manufacturer's recommendations and requirements using temporary blocking if and as required and expansion material as recommended by flooring manufacturer.

Prep, sand and paint shoe molding with one coat primer and two coats paint prior to installation. Color to match color of existing baseboard.

Install shoe molding over expansion void at perimeter of flooring secured to vertical interfaces using nails in accordance with industry standards. Miter joints at 45 degrees. Use longest pieces possible with fewest joints. Round over exposed ends of shoe molding and paint prior to installation. Ensure base does not contact floor surface and is not secured to it.

Install new thresholds in locations indicated on drawings in accordance with flooring manufacturer's directions.

Install new floor heating registers.

Stairs Take note of and measure components of existing stairs in order to replicate with new materials.

Remove newel post, balusters and handrail in a manner to be able to reinstall without repairs. Remove skirtboards and molding from under nosing, cut nosing of stair treads flush with risers.

Sweep, drymop and vacuum the stairs well to remove all dust and dirt.

Install new skirtboards and hardwood stair treads in proper sequence.

Reinstall newel post, balusters and handrail.

Install new molding under all stair nosings.

Stair tread at top of stairs shall meet elevation of new second floor flooring flush with no lip and no transition gradient to new flooring.

Workmanship The contractor is responsible for appropriate quality control and workmanship shall be the best of their respective kinds and in full accordance with applicable codes.

Make sure all work is flush, square, level and has proper reveals per manufacturer’s specs. If not sure ask COR before starting.

When a manufacturer or a standard uses subjective words, e.g., “should, could, may”, etc., these words shall mean “shall, will, required”, etc. When the word “recommended” is used, it shall mean “required”. If there is a conflict between general and specific provisions, the specific shall govern.

Upon Notice to Proceed, the contractor shall make steady and uninterrupted progress toward the completion of the work of this contract.

Storage of Equipment and Materials The contractor shall be responsible for storage of all materials and equipment; the COR and/or Project Inspector must approve the contractor’s use of any space on the site in advance.

Upon completion of the work of this contract, the storage area shall be left broom clean by the contractor.

Clean-Up

After completion of the work, construction debris, excess material and equipment shall be removed from the site and legally disposed. Use a magnet of sufficient strength to ensure no metal is left behind. Upon completion of the work of this contract, work areas shall be left broom clean by the contractor.

Period of Performance Preconstruction meeting – Will be held within one week of contract award.

Notice to Proceed – Will be provided to the contractor after preconstruction meeting and upon receipt of all required documents.

Material Submittals – Due within 48 hours (or 2 business days) of Notice to Proceed Proposed completed work with all documentation submittals – 30 days after date on the Notice to Proceed.

Drawings

Overall Plans of House – not to scale

Second Floor – not to scale

First Floor – not to scale

12 13

3 2 1 7

Room not in contract

Room not in contract

Room not in contract

Room not in contract

Room not in contract

Room not in contract

Second Floor Work Area – not to scale cut edge of threshold

Room not in contract cut edge of threshold remove threshold replace threshold

Run all flooring on second floor north-south

New stair treads to first floor

First Floor Work Area – not to scale

Map of Project Location

Project Site

Room not in contract

Room not in contract Room not in contract

Run all flooring in rooms 9 and 10 north-south

Run all flooring in rooms 5, 6 and 8 east-west cut edge of threshold cut edge of threshold replace threshold remove threshold

New stair treads to second floor

STATEMENT OF WORK – PART B

Renovations to Maker House

CAPE COD NATIONAL SEASHORE

189 Bound Brook Way, Wellfleet, MA

September 23, 2020

Scope This project is for the conversion of a bedroom to a full bathroom on the second floor of the Maker house , and for the removal of the existing heating system and installation of a new properly sized high-efficiency hot water baseboard heating system, including, piping, thermostats, oil storage tank, and all ancillary items required for the proper operation of the system.

The scope for the bathroom shall include:

Detailed proposed project design and layout for a complete full bathroom, Demolition as necessary, Structural blocking and strengthening, Adjustments to existing windows, doors and walls as necessary, Alcove wall, tub and surround, complete, Toilet, sink, sink alcove, Vanity, Medicine cabinet with lighting, Storage cabinet with mirror and overhead light, Bathroom door, Closet with louvered doors and light, Towel racks, shower curtain and hardware, dispensers and holders, Overhead fan and room lighting, Flooring, Plumbing, electrical, ductwork, connections to utilities in basement, All ancillary plumbing, septic, electrical, fittings and fixtures necessary for a fully functioning bathroom.

The scope for the heating system shall include:

Correctly sized heating system for a 2002 square foot two story house with full basement Insulated piping Two zones with programmable thermostats Ball valve shutoffs to isolate all components Low water cutoff, manual reset, pressure gauge Expansion tank and air separator Oil boiler and burner, less tankless coil Backflow preventer and pressure reducing valve 20 gallon settling tank PEX-AL-PEX composite tubing Finned-tube baseboards with adjustable dampers Panel radiator in downstairs bathroom Incorporate existing electric water heater into system Remove empty single wall oil tank and install existing double wall oil tank All fittings, connections, plumbing and electrical necessary to complete the system HVAC contractor needs to perform a Heat Load Calculation

The contractor shall minimize disturbance to the site to the greatest extent possible unless directed otherwise.

The Contractor shall provide all labor, materials, tools, and equipment required to complete this work.

All work performed under this contract shall be done in accordance with applicable local, State, and Federal codes, bylaws and ordinances in effect at the time of this work.

Measurements Sketches, estimated dimensions and quantities are provided as a guide only. The contractor is responsible for verifying all measurements and dimensions. The contractor shall take all measurements for quantities of materials and note existing conditions for the installation of new work. All ancillary work, cutting and /or removal of existing work necessary for the installation of new work shall be done as required as part of this contract.

Site Examination It is the responsibility of the Contractor to examine the work site to confirm existing conditions and required quantities prior to submitting a proposal on this project. See provision 52.236-27 for scheduled site visit time, date and meeting location.

Utilities and Services The Contractor shall provide and maintain sanitary facilities for workers.

Contractor shall be responsible for locating and preventing damage to known utilities. If damage occurs, repair utility at no additional expense to the Government. Notify Contracting Officer and utility companies of proposed locations and times for excavation. If damage occurs to an unknown utility, repair utility. An equitable adjustment will be made in accordance with the Changes clause of the contract.

Water Service: Water from existing water system is normally available for use without metering and without payment of use charges. Provide connections and extensions of services as required for construction operations without any additional permit costs. If water is not available, the contractor shall provide temporary water at no additional cost to the contract for project use.

Electric Power Service: Electric power from existing system is normally available for use during construction without metering and without payment of use charges. Provide connections and extensions of services as required for construction operations without any additional permit costs.

Arrange with utility company and government for time when service can be interrupted, if necessary, to make connections for temporary services. If electric power is not available, the contractor shall provide temporary power at no additional cost to the contract for project use.

Permits and Approvals If appropriate, the Contractor is responsible for contacting Dig Safe (#811) or other approved utility marking entity for pre-marking of all underground utility locations within project area prior to any ground disturbance. Prior to commencement of any on-site work, provide Contracting Office with copies of proof of pre-marking from utility marking entity.

Contractor shall obtain all required permits for the performance of the work specified in Contract Documents at no additional cost to the contract.

Submittals and Deliverables Contractor shall submit safety plan that complies with OSHA standards within 3 business days after award.

Contractor shall provide detailed proposed project design, layout, and schedule for approval prior to commencing any work on site.

Design a properly sized heating system complete with a first floor heating zone and a second floor heating zone. System must be sized to avoid microloading and frequent short-cycling. All components shall be isolated with shutoffs, and sited and routed to minimize impact on existing house.

Product Data: provide manufacturers' literature on characteristics of materials, maintenance, parts list and warranties. Submit only pages which are pertinent. Mark each copy to identify pertinent products referenced to the specifications. Provide manufacturers’ literature, drawings, and technical data sufficient to fully define the material and to demonstrate full compliance with the contract specifications.

Manufacturer's Installation Instructions: Include special precautions from manufacturer.

Drawings: submit drawings as appropriate.

Materials: submit representative samples of all materials to be used in sizes adequate to define the purpose of the material and determine its suitability.

Manufacturer's certificate: certify that products meet or exceed specified requirements.

Perform the work of this contract.

Safety and Environmental Protection Requirement Maintain project area in a neat, orderly and safe condition at all times. All work areas shall be made secure and safe after hours, on weekends and holidays.

All debris and removed material is the property of the contractor and is to be recycled or legally disposed of in a manner that is consistent with local and state regulations. All waste, trash and debris generated as part of this project must be secured from wind and rodent action.

The contractor shall take all necessary precautions to prevent fire during construction. Contractor shall provide and maintain suitable fire protection equipment. Protection Equipment Required: Furnish a minimum of one UL Class 2A, 2-1/2 gallon water type stored pressure extinguisher, and one UL Class 10, Type I, 15 pound A:B:C carbon dioxide extinguisher at each work site.

No radios or smoking (including vaping) will be allowed on the job site. Confined space entry, fall protection and hardhat use shall conform to safety rules and regulations.

The contractor is responsible for securing the site and the work of this contract. During the execution of this contract, the Contractor shall conform to the rules and regulations as set forth by OSHA Safety and Health Standards. The Contractor shall provide barriers, temporary fencing, signage, etc. wherever work could cause injury to workers or visitors, and ensure that ladders, scaffolding and equipment are secured from public access during off-hours.

The contractor shall provide and maintain environmental protection during the life of the Contract to control pollution or to correct conditions that develop during construction.

It is the contractor’s responsibility to ensure that any disturbance or damage done during the course of this project to the existing utilities, landscape, building or government materials, shall be repaired or restored to its original condition by the contractor at contractor’s expense prior to completion of the job.

Work and Weather Limitations Regular work hours are between 7AM to 4PM Monday through Friday. Unless otherwise requested and approved in advance, no work shall take place after hours, on holidays or weekends. Requests must be made 48 hours in advance.

The contractor shall be responsible for storage of all materials and equipment; the Park must approve contractor’s use of any space on the site in advance.

While not expected, if excavation is required as part of the work of this contract, it is possible that buried archeological features or deposits may be located in the vicinity of the project. Work must be stopped immediately if there is discovery of any such articles, and the Contracting Officer’s Representative must be notified at once. A government Archeologist/Historian may monitor ground disturbing work and has the authority to stop the work if any potential archeological resources are unearthed.

The contractor shall coordinate work and schedule of all sub-contractors.

Security and Safety The contractor shall have unescorted access to the construction site. The contractor shall coordinate with the COR for access to all locations.

The COR or the COR’s alternate will not be required to be at the site location during all working hours.

Regulations

• Occupational Safety and Health Administration (OSHA)

• National Institute for Occupational Safety and Health (NIOSH)

• Massachusetts General Laws and Department of Environmental Protection regulations and statutes

• Town Board of Health Regulations

Materials The contractor shall furnish, supply, and install all necessary new materials to successfully complete the project requirements. Unless explicitly indicated, new materials shall match those being replaced and all materials shall be fully compatible with each other.

For Bathroom Flooring shall be one-piece Grade 1 sheet vinyl with a waterproof core in a white or light color tile pattern. COR to select from samples provided by contractor.

Wallboard and lumber shall be as manufactured specifically for bathroom conditions.

Vanity shall be white-painted enclosed solid wood cabinetry with solid surface vanity top, backsplash and integrated sink, with drawers and doors below, sized to fit into sink alcove.

Medicine cabinet at sink shall be 24” by 32” white-painted solid wood cabinetry with a fog-free mirror, adjustable shelves and either overhead or side-mounted lighting.

Storage cabinet shall be full width white-painted solid wood cabinetry with 3-4 drawers and two door storage underneath and solid surface top and backsplash, sized to fit available space. Top of cabinet shall fit under window trim.

Vanity and storage cabinet shall match in materials and appearance.

Closet doors shall be pre-finished white solid pine louvered pre-hung bypass with hardware, sized to fit opening.

Bathroom door shall be pre-finished white solid wood 6-panel door with standard bathroom door hardware.

Domestic water piping for bathroom shall be cross linked polyethylene tubing manufactured using extrusion method (PEX) with all the appropriate connections and fittings. Provide water shutoffs at fixtures. Connections shall be braided stainless steel lines from shutoffs to fixtures.

Toilet shall be standard low-flow white residential floor-mounted toilet, complete with seat and lid, meeting all codes and requirements.

Bathtub shall be standard rectangular 60” x 32” white mold- and mildew-resistant fiberglass acrylic residential tub with slip-resistant floor with compatible tub surround and all necessary structural supports, as manufactured by American Standard or approved equal.

Bathtub fixtures shall be chrome-finished brass single-handle 1-spray tub and shower faucet, complete with monitor pressure-balanced valve cartridge.

Sink faucet shall be chrome-finished brass single handle bathroom faucet.

Towel bars and dispensers shall be brass with a polished chrome finish.

Bathroom ceiling light shall be low profile one-piece combined LED light/110 CFM ventilation fan ducted to outside wall with properly sized galvanized hooded wall vent with spring loaded damper, gasket and screen with switch at the bathroom door.

Closet light shall be 24” white LED with wall switch, mounted on wall over door.

Mirror over storage cabinet shall be fog-free, approximately 4’ wide by 3’ high.

Light over mirror at storage cabinet shall be chrome finished 48” wide LED five or six-bulb bathroom lighting fixture with wall switch.

Caulking for wall penetrations or where water incursion may occur shall be Benjamin Moore Elastomeric 465 01 Caulk, or an approved equivalent.

Paint primers, sealers, and undercoats shall be suitable for bathrooms and compatible with the finish coat and each other. Include mold and mildew inhibiters. Finish coat paint shall be semi-gloss enamel, color to be selected by COR from samples provided by contractor. Acceptable paint manufacturers include: Benjamin Moore & Co: www.benjaminmoore.com., PPG Architectural Finishes, Inc:

www.ppgaf.com., Sherwin-Williams Company: www.sherwin-williams.com.

For Heating System The condensing sealed combustion hot water oil-fired cast iron boiler shall be correctly sized per Air Conditioning Contractors of America (ACCA) Manual J calculation for a 2002 square foot two story house with full basement and have the Energy Star Most Efficient designation with an annual fuel-utilization-efficiency (AFUE) rating of 90 to 98.5 percent. As an advisory to the contract, Weil-McClain, Buderus, Burnham, Peerless all manufacture systems that meet these specifications. Include an expansion tank and spirovent air separator, manual reset, pressure and temperature gauge and a low water cutoff as manufactured by Taco.

Baseboards shall be finned-tube type with thermostatic radiator valves and adjustable dampers sized properly for each space based on true tested performance.

Radiator for downstairs bathroom shall be a vertical flat panel hydronic panel radiator as supplied by Delta, Hudson Reed, or Runtal, and sized properly for the space.

Settling tank shall be 20 gallon capacity corrosion-free with low-level cleanout for sediment purging.

PEX-AL-PEX composite tubing manufactured to ASTM F1281 rated for service conditions up to 210°F at 115 psi. with brass fittings for making either soldered or threaded connections.

As needed, domestic water piping and fittings shall be copper pipe: ASTM B88, copper tubing, hard drawn, Type L. Fittings: ASTM B16.18, cast copper alloy, or ASTM B16.22, wrought copper. Joining material: ASTM B32, Alloy SN95, or SN94 lead free solder.

Ball Valves: 4-inch and Smaller, Class 150, 600 psi, ASTM B584 bronze body and bonnet, two- piece construction, chrome-plated brass ball, conventional port, bronze or brass stem; Teflon seats and seals;

threaded or soldered end connections, vinyl-covered steel lever handle and handle memory stop.

http://www.sherwin-williams.com/

Pipe insulation shall be fiberglass, type - pipe insulation hinged with self-sealing flap, wall thickness -insulation 1 in., to fit pipe size, insulation temperature range 0 degrees to 850 degrees F, insulation approximate R value 4.35, insulation approx. K value 0.23, color white, standards ASTM C547 Type 1, ASTM C585, ASTM C1136, NRC 1.36, ASTM C795, Mil-I-24244C, MEA Compliant. As an advisory to the contract, Owens Corning, Techlite and Johns Manville make insulation that meets the requirements of this contract.

The heating system shall have two zones, one upstairs and one downstairs, with Energy Star certified “Smart” programmable thermostats. As an advisory to the contract, Honeywell is a manufacturer of thermostats that meet these specifications. Include or confirm the existence of a C-wire (common wire) in house electrical system for heating system thermostat.

Provide ball valve shutoffs to isolate all components. Include two ball valves on each heating zone, one at the beginning of the zone and a purge station at the return line. Provide circulator on the supply side of the boiler and downstream of the system’s expansion tank to make air purging simple, eliminating the need to bleed air from the baseboards. Provide two zone valves.

Wiring for the system’s circulators and thermostats shall be consolidated into a single multi-zone relay center control panel.

Backflow preventer and pressure reducing valve shall be as manufactured by Watts and sized to fit the purpose.

Workmanship The Contractor is responsible for appropriate quality control and workmanship shall be the best of their respective kinds and in full accordance with applicable codes.

Ensure all work is flush, square, level and has proper reveals per manufacturer’s specs. If not sure ask COR before starting.

When a manufacturer or a standard uses subjective words, e.g., “should, could, may”, etc., these words shall mean “shall, will, required”, etc. When the word “recommended” is used, it shall mean “required”. If there is a conflict between general and specific provisions, the specific shall govern.

Upon Notice to Proceed, Contractor shall make steady and uninterrupted progress toward the completion of the work of this contract.

Demolition Before beginning any demolition or deconstruction work, inspect and examine the site to determine the extent of the work. Take necessary precautions to avoid damage to existing items, including trees, to remain in place, to be reused, or to remain property of Government.

Provide waste-collection containers in sizes adequate to handle waste from construction operations.

Comply with requirements of agency(ies) with jurisdiction.

Unless otherwise indicated, disposal of removed materials shall be the Contractor's responsibility. All debris and removed material is the property of the contractor and shall be recycled or legally disposed of in a manner that is consistent with local and state regulations.

Remove and dispose of all components of existing heating system not planned to be incorporated into new heating system.

Installation Properly sequence the work of this contract. Several sub-contractors may be performing work during the same time frame. Coordinate work of sub-contractors as appropriate.

For Bathroom Layout of bathroom shown schematically and incomplete. Propose location and layout of bathroom, including closet, vanity, storage closet, plumbing, electrical and fixtures for review and approval by COR.

Install complete.

Carpentry Open up floor and wall as required to receive new plumbing.

Remove existing wallboard and baseboard at tub area. Construct alcove wall for tub. Frame and sheathe walls with dimensional lumber. Include all blocking and structural support necessary for all fixtures. Install wallboard suitable for wet conditions and baseboard to match existing, finish to industry standards to match adjacent walls.

Remove existing door framing and trim at location of new sink. Construct alcove for sink/vanity. Include all blocking and structural support necessary. Install sink/vanity and medicine cabinet.

Construct closet with doors and lighting. Trim shall match existing trim in room. Install closet doors.

Install bathroom door.

Install storage cabinet, mirror and lighting.

Repair damage to surfaces resulting from work of this contract to match existing.

Sand and prepare walls and ceiling for painting. Paint walls and ceiling.

Bathroom Plumbing, Electrical and Fixtures Install code-compliant fixtures, including fittings and shutoffs, complete.

Install ceiling fan/light, ducting and wall vent. Seal exterior wall penetration.

Install lighting and electrical at sink/vanity area.

Install tub, surround, toilet, sink/vanity and all associated appurtenances.

Install code-compliant duplex electrical outlets at locations that can be used in conjunction with the sink and mirrors.

Convert existing electrical outlets to GFCI outlets. Relocate as required.

Install towel racks, shower curtain and hardware, dispensers and holders with all the necessary blocking and structural support.

Flooring Prepare existing floor to receive sheet vinyl. Remove existing ductwork and fill hole with sub floor to match existing. Install ¼” BC plywood underlayment and leveler, if needed. Install vinyl flooring in one continuous sheet with the proper adhesive. Install transition strip at doorway.

For Heating System Lay out heating system for review and approval by NPS.

Install components to result in a complete operable heating system, including all wiring. Reuse existing water heater and any suitable plumbing. Disconnect and dispose of single wall oil tank. Connect double wall oil tank that is located in basement.

Install settling tank in advance of boiler and water heater with isolation valves and low-level cleanout for sediment purging.

Mount firomatic fusible link plug per code.

Where copper tubing is suspended beneath floor joists, use plastic-coated wire hangers to prevent expanding pipe noise.

Support 1/2-inch and 3/4-inch tubing at intervals not exceeding 4 feet. Supports for 1-inch and 11/4-inch tubing shall be not more than 6 feet apart. PEX tubing shall be supported about every 30 inches.

Drill holes at least 3/8 inch larger than the outside diameter of the piping.

Install thermostats on walls in upstairs and downstairs halls Connect thermostats to system using C-wire (common wire). Consolidate wiring for the system’s circulators and thermostats into a single multi-zone relay center control panel.

Include or confirm emergency shutoff meets code and is properly installed and is fully functional.

Storage of Equipment and Materials Contractor shall be responsible for storage of all materials and equipment; the Park COR and / or Project Inspector must approve contractor’s use of any space on the site in advance.

Upon completion of the work of this contract, the storage area shall be left broom clean by contractor.

Testing and Charging System Before pressure testing, seal all air vents and open all inline valves. Pressurize system with air to 20 to 25 psi. for a minimum of 12 hours. Fix all leaks before covering the piping or adding water.

Fill system with water and purge air bubbles, one zone circuit at a time.

Test heating system one zone at a time for heat delivery. Provide written certification of proper function of all components of systems.

Clean-Up After completion of the work, construction debris, excess material and equipment shall be removed from the site and legally disposed. Contractor to use a magnet of sufficient strength to ensure no metal is left behind. Upon completion of the work of this contract, work areas shall be left broom clean by contractor.

Period of Performance Preconstruction meeting – Will be held within one week of contract award.

Notice to Proceed – Will be provided to Contractor after preconstruction meeting and upon receipt of all required documents.

Material Submittals – Due within 48 hours (or 2 business days) of Notice to Proceed Proposed completed work with all documentation submittals – 75 days after date on the Notice to Proceed.

New bathroom location in existing bedroom – dimensions approximate, not to scale

New bathroom alcoves, walls, tub, surround, toilet, sink, vanity, storage cabinet, closet, towel racks, dispensers and fixtures shown schematically. Lighting, medicine cabinet, mirrors, electrical , plumbing, ductwork and improvements by other contractors not shown. See sketch for storage cabinet and closet.

Area of sink plumbing in first floor bathroom

Vent stack for first floor tub

Eave

Closet

Storage cabinet with mirror and overhead light

Sketch – bathroom closet and storage cabinet with mirror and overhead light shown representationally, colors and materials not accurately depicted

Basement floor plan – not to scale

First floor plan – not to scale

Second floor plan – not to scale

Map of Project Location

New Bathroom Location