608-24-108 Kitchen Roof Restoration - HVAC SOW.pdf

Building 1 Kitchen Roof Restoration / HVAC for Kitchen 718 Smyth Road, Manchester NH 03103

608-24-108

1.0 INTRODUCTION

The work includes but is not limited to provide all equipment, tools, labor, and support services for removal, repair, & restoration installation of new polyurethane roof coating system from Trimco. This project will include, but is not limited to, all work including construction administration, demolition, and installation of roof on building #1 kitchen (roof 8 – 8A) for the project. All work is to meet the requirements of Architectural Barriers Act (ABA). This project will also include HVAC to the Kitchen area in bldg. 1, N110.

The scope of works includes but is not limited to the demolition and removal of existing roofs, metal roof deck repairs, installation of new roofs and safety roof railings, installation of new lightning rod system where needed. Trimco product is used to maintain integrity of the original roof warranty. These areas are all clearly shown on the VA provided plans. Also look at the possibility of raising the roof area around HVAC unit so water doesn’t pool around unit.

Basically, these roofs are the lower roofs of building 1. Accessibility is gained through a door in the chapel office N268, access to roof 8A is difficult due to the location. The access for roof 8A will be from the roof above building 20, minimal access can be through a window on the 2nd floor. The old ambulance location can be used as the staging area and disposal location. Diagram drawing attached shows the locations for work.

The VA shall be considered the Architect of record and all RFI’s and submittals shall be sent to them for resolution through the Contracting Officer (CO).

After Contract Award the Contractor is required to provide a Payment Bond, a Performance Bond and an Insurance certificate within 10 days. Once received and confirmed, the period of performance for the above-mentioned project will begin with a Notice to Proceed (NTP) issued at a Pre- Construction Meeting (Pre-Con) and shall not exceed 180 days after NTP. As part of this solicitation the General Contractor (GC) shall submit a preliminary schedule using Procore showing the methodology for accomplishing the project.

VA New England Healthcare System Manchester VA New England Healthcare System

Manchester VA Medical Center 718 Smyth Road

2.0 Tasks

1. Remove All items that are marked with red spray paint then repair the areas.

Items that are staying will be marked with green spray paint. The two disconnects mounted on the duct work will need to be remounted near the exhaust fans they supply.

4- large supports/angle iron 16 - small supports 2 - 2x6 duct returns capped Large 70'x5' duct 1 - power supply and refrigerant lines box 1 'x1' 1 power box / pitch pocket removed, power supply should be disconnected at the panel.

2 – Mini split HVAC condensers and line sets.

2 – 3” old steam pipe to be removed

Existing/ staying:

Kee safety railing

(2) - 30"x30" capped curb (3 - 30"x30" mushrooms fans

(2) - exhaust pipes (4") HVAC 7'x21' 5 - sleeper pads/stantions 6 soil stacks A/c on top roof 3 - drains 1 - 2'x2' box exhaust 1 - 3'x3' capped curb 1 - 12" pipe penetration

Replace the 2,445 SF of 3.5” insulation of wet areas found from the IR scan with like new material so it will not void out original Trimco warranty.

Tie new patches into the existing roof with Trimco approved material so original warranty will not be voided.

Pressure wash roofs 8 – 8A (entire roofs) using minimum 2000 psi washer.

Once roof is clean and dry, install Alphaguard WB primer at a rate of ½ gallon per-square (8 wet mils) mix lightly.

Once dry, install Alphagaurd BIO base coat at a rate of 3 gallons per square (48 wet mils) mix for 2 min & 30 sec.

Incorporate permafab polyester fabric into the base coat.

Once basecoat and permafab is cured the roof is ready for topcoat.

Install Alphagaurd BIO topcoat at a rate of 2 gallons per square (32 wet mils) mix for 2 min 30 sec.

2. Air conditioning will be added to the Kitchen N110, the two units will be wall mounted 6-ton units. Two windows will be removed to utilize these penetrations for the HVAC units. These windows are 2 & 4 from left to right. Type of unit would be a Bard Exterior Wall-Mounted Air Conditioner with Dehumidification capability. Unit must also have an economizer to always bring in fresh air set at 15% min. The unit should be 208/230v 3 phase if available. Two new 208/230 3- 60amp disconnect at the units outside if 3 phase is used, if not use appropriate disconnect. (Example model of Bard unit #W090-AE-W180BE) Power for units will come from N103A, panel EQ1A or panel E1. One HVAC unit will be ducted to supply conditioned air approx. 25’ to the center of the room. Duct work should be stainless steel so that it does not rust or corrode & can be cleaned. Insulation should be inside of the duct work & not exposed to kitchen environment. The other unit will discharge conditioned air in place. Lighting will have to be moved for the duct work, then replaced in a new location with a new light. New light shall meet all code requirements for kitchen area with dishwasher / cart washing.

Sprinkler line might also need to be moved for ductwork installation.

On the outside where the units will be mounted to the wall a copper line will have to be moved, this line is for expansion tank for chilled water for the server room.

The inside area where the new units are going should be covered with a material so it can be wiped down and cleaned. A grate should also be installed for the return air. The units shall be connected to the JCI DDC system for controlling.

Temp sensors shall be installed in two locations, these will be provided by VA

COR.

Safety Requirements – Unit shall be installed following all applicable codes (State / Federal) for fire safety.

Air handlers should be set up so that they turn off in case of fire, this way they are not pulling in air to fuel a fire.

3.0 PROJECT DELIVERABLES

All work (including warranty) will be performed with no or limited pre-approved interruption in the production of the HVAC or steam systems. All work shall be coordinated with COR or the maintenance supervisor at least two weeks in advance of delivery.

Contractor shall conduct site visit prior to submitting pricing. Contractor shall keep in mind the location of the proposed work, some areas maybe an occupied working space.

Any hoisting work with crane will be done during normal working hours or off hours.

Work in the kitchen area shall have a poly wall built with negative pressure in the workspace. Work in the kitchen for hanging of ductwork shall be done on off hours so not to disrupt kitchen operations. All work will be coordinated with kitchen staff & COR.

Contractor shall submit a safety plan outlining the company’s lifting policies & procedures/guidelines per OSHA requirements.

All material and equipment shall be submitted for approval prior to the start of work.

Electrical panel tie ins will be done off hours and with the coordination of the M&R staff electricians.

4.0 PERFORMANCE REQUIREMENTS

All work will be performed between the hours of 6:00am to 5:00 pm Monday thru Friday, excluding holidays and weekends. Off hours and weekend work may be required to allow for utility outages or hoisting.

All work shall be in accordance with the system manufacturer specifications and requirements. Contractor must follow manufacturer recommendations on installation.

Vendor shall comply with all OSHA Safety Guidelines.

All O&M manuals shall be turned over at the completion of work, and contractor shall brief maintenance staff on the operation and maintenance of the equipment.

Contractor shall begin work within 7 days of the notice to proceed being issued. Unless lead time on material and equipment prevents start of the work.

The period of period of performance (PoP) of this contract once mobilized is 180 calendar days.

If contractor feels additional time is needed, they shall make a correction in the RFP and propose a different PoP to the Contracting Officer.

All installed work and equipment to be in accordance with VA standards -https://www.cfm.va.gov/til/index.asp.

If conflict exists between manufacturers recommendations and VA TIL specifications, VA staff will determine which takes precedence.

All equipment proposed for construction will be approved by the VA before installation

5.0 CONTRACT REQUIREMENTS

Contract shall be a firm and fixed price.

Provide one-year warranty on work.

Any changes in the contract shall be brought to the attention of the Contracting Officer.

The Contracting Officers Representative (COR) does not have authorization to modify the contract.

6.0 CONTRACT DELIVERABLES

Installation of a complete 100% sealed roof and functioning HVAC system with all components included - whether stated in this scope of work.

The expected outcome of the project is to have a water tight roof & HVAC/DDC for the Kitchen N110.

https://www.cfm.va.gov/til/index.asp

Vendor will notify Manchester VAMC COR or Maintenance Operations Supervisor at least two weeks in advance of the proposed delivery, utility outages if needed, and start-up tasks.

7.0 REFERENCES

ASME – Boiler and Pressure Vessel Code (BPVC)

ANSI – American National Standard Institute

NEC – National Electrical Code

IPC – International Plumbing Code

NFPA- Nation Fire Protection Association

Uniform Plumbing Code (UPC), National Electrical Code (NEC)

TIL – Technical information library

Electrical 1st floor B1.pdf

23_VARoof8a-IRStud y_09.04.pdf

Roof 8 IR scan results.pdf

Building 1 first floor north.pdf

608-24-108 kitchen roof.pdf

1st Floor Plan.pdf Example Bard Unit 1.pdf

-END OF SCOPE OF WORK-