0 0 Bound Design Analysis for Reference.pdf

SECURE MEDICAL GAS FARM

Bruce W. Carter VA Medical Center

Miami, FL

April 28, 2021

Final Submission Design Analysis

Project Number: 546-19-104

Final Submission Design Analysis

April 28, 2021

Secure Medical Gas Farm Bruce W. Carter VA Medical Center

Miami, Florida

TABLE OF CONTENTS

I Executive Summary II Environmental (N/A)

III Civil (N/A) IV Structural V Architectural

VI Mechanical VII Plumbing

VIII Electrical IX Fire Protection

APPENDICES

Note:

This document is provided for reference only. This document is not a contract document.

A Data Sheets & Calculations A1: Architectural A2: Mechanical

Final Design Submittal

I. Executive Summary

Miami VA Medical Center, Miami, FL

Page I - 1

I. Executive Summary

A. Goals and Needs:

1. The primary objective of the Project is to address measures to secure the existing medical gas farm to meet VA mission critical physical security design guidelines. Local, state and national code requirements are to be met.

B. Project Scope

1. The project scope is subject to amendment following review of the 50% submission with the Miami VAMC. A code issue was identified in the 50% submission that impacted the scope which required a change in scope. Refer to the subsequent items in this section and Code Issues below.

2. Field investigation has been performed with the design team observing and recording existing conditions and reviewing record drawings provide by the VA.

3. The project site includes the stationary oxygen tank farm, the adjacent medical gas storage shed and service yard area adjacent to the existing emergency oxygen inlet. The site is framed by Building 1 to the south and Building 7 to the east and north. The site is immediately adjacent to the loading dock and secured service yard to the west extending north to the existing pesticide storage building.

4. Due to the enclosed courtyard restriction imposed by NFPA 55, the intended blast-resistant wall separating the existing oxygen tank farm from the existing service yard will not be permitted and has been deleted from the project scope. Relocating the existing medical gas manifolds and stored gas cylinders from the oxygen tank farm remains in the project scope. Buildings to house the relocated medical gas manifolds and store the medical gas cylinders will constructed on the west and south sides of the Building 7 wing that borders the north side of the existing oxygen tank farm. These three buildings will be located outside the oxygen tank farm. The resulting oxygen tank farm area will be enclosed within the existing three-walled court running from Building 1 on the south to Building 7 on the north.

5. Removal of existing canopies over the oxygen tank farm and other items to be removed or relocated are addressed in the architectural section of this analysis.

6. The three medical gas buildings and other elements to be designed and constructed are also addressed in the architectural section of this analysis.

C. Code Issues

Page I - 2

1. The design is to comply with all local, state and national codes.

NFPA 55, 8.12.2.7.2.1 does not permit installation of stationary oxygen tanks within enclosed courts. NFPA 55, A.8.12.2.7.2 references CGA P-41 for guidance to determine the suitability of an enclosed court. CGA P-41 states the document is purely voluntary and not binding unless adopted by reference in regulations (local, state or national).

2. The architect has conferred with Fire Protection and Code Consultants. FP&C interpreted the enclosed court to not be permitted by NFPA 55 and if the solution were to be constructed at heights and distances permitted per CGA P-41, the solution would only be compliant with alternate industry standards (CGA – P41).

The project would need AHJ approval by the VISN 8 Safety and Health Manager and possibly VACO (as an alternate industry standard and not NFPA compliant. In addition, solid project documentation would need to be available for future review by other parties inclusive of TJC. FP&C and TMM reviewed this approval process with the Miami VAMC via teleconference.

3. The VA has directed that the design solution will comply with the enclosed court restriction in NFPA 55. The VA will not pursue an alternate approval path as referenced above and following the court requirements in CGA – P41 as referenced in the Annex of NFPA 55.

4. Miami VA FMS and VA CFM reviewed the code issued and scope adjustment with TMM. As a result, TMM was directed to design a code compliant solution relocating the medical gas manifolds and medical gas cylinder storage outside of the existing oxygen tank farm. The following design analysis identifies design work required to accomplish this directive.

D. Construction Cost Analysis

1. A cost estimate is included separately with this Submittal.

2. The estimate includes allowances for blast resistant doors frames and hardware. Blast resistant walls are provided for the gas manifold and gas storage buildings. Costs also include a 12-foot chain link fence and 6-foot gate on the north half of the existing oxygen tank farm.

3. The 100% detailed estimate includes architectural (and site), structural, plumbing, mechanical, fire protection and electrical costs.

4. Deductive alternates:

Deductive Alternate # 1 Roof Membrane

Deductive Alternate # 2 Alarm Panels

II. Environmental (Not Applicable)

III. Civil (Not Applicable)

IV. Structural

Page IV-1

IV. Structural

A. Goals and Needs:

1. This project provides for the structural design of a new reinforced masonry blast walls and structural steel roof to protect the new medical gas storage tanks from design blast pressures associated with the VA Physical Security and Resiliency Manual Design Basis Blast threat at Miami VA Medical Center.

B. Existing Conditions

1. The existing medical gas equipment is currently surrounded by chain link fencing. There is an existing aluminum canopy system directly adjacent to the medical gas storage area. The existing foundations to the building on the north side of the gas farm are unknown as the existing drawings have not been made available to the design team. Additionally, the tank foundations are unknown as no existing drawings have been made available to the design.

C. Scope of Demolition:

1. Selective demolition of existing exterior concrete slab for footing and slab installation.

D. Scope of New Work:

1. Install new reinforced concrete footings for new reinforced masonry walls.

2. Install new reinforced concrete slab on grade.

3. Install new reinforced concrete column footings for steel columns.

4. Install new structural steel roof structure.

E. Attachments:

1. Attachment 1: Structural Design Criteria

2. Attachment 2: Structural Calculations

F. Needed Information from the Owner:

1. None anticipated

Miami VAMC Secure Medical Gas Farm

Page IV-2

Attachment No. 1 Structural Design Criteria

Page IV-3

1. Codes & Standards:

a. International Building Code (IBC) 2018 Edition

b. VA Seismic Design Requirements, H-18-8, 2020 Edition

c. ANSI/ASCE 7-16, Minimum Design Loads for Buildings and Other Structures

d. VA Physical Security and Resiliency Design Manual, 2020 Edition

2. Design Loads

a. Dead Loads

i. Roof: Self weight of materials

b. Collateral Loads:

i. Roof: 10 psf

c. Live Loads

i. Roof: 20 psf

d. Snow Loads:

i. Ground Snow Load: 0 psf

e. Physical Security Loads

i. Standoff Distance: 50 feet

ii. Wall and Roof Blast Loading not to Exceed the pressure and impulse associated with GP2.

f. Wind loads

i. Risk Category: IV

ii. Ultimate Wind Speed: V=189 mph

iii. Wind Importance Factor: IW=1.0

iv. Wind Exposure: B

v. Internal Pressure Coefficient:

a) + 0.18 “Enclosed”

g. Seismic Loads

i. Risk Category: IV

ii. Seismic Importance Factor: IE=1.5

iii. Mapped Spectral Response Accelerations:

a) SS=0.04

b) S1=0.02

iv. Site Class: D assumed

v. Spectral Response Coefficients:

a) SDS=0.042

Page IV-4

b) SD1=0.032

vi. Seismic Design Category: A

V. Architectural

Page V-1

V. Architectural

A. Design Requirements

1. Provide Architectural design and documentation for one medical gas manifold building and two medical gas storage buildings and securing the buildings and the existing medical gas farm.

2. As addressed in the Executive Summary, NFPA 55, 8.12.2.7.2 restricts installation of stationary oxygen tanks within enclosed courts. Following review by the Miami VAMC FMS and VA CFM, the proposed 15-foot high wall shown in the 50% design submission separating the existing oxygen tank farm from the service yard has been deleted from the project scope.

B. Site Investigation

1. GPR Survey

a. The survey located subsurface utilities and suspected utilities.

b. Live electrical lines were identified and located crossing the walkway between the electrical room and pesticide storage building.

c. An unknown line was located crossing the walkway between the telecommunications room and pesticide storage area.

d. Stormwater and domestic water lines were located crossing the service yard.

e. Unknown lines were identified running from the emergency oxygen inlet to the oxygen tank farm.

f. The survey was record on a CAD file for A/E reference and VA files. A PDF copy of the survey will be provided for the Contractor’s reference.

2. Geotechnical Investigation

a. A soil boring was drilled at the planned manifold building location. The boring was located and drilled following completion of the GPR survey.

b. A copy of the soils report was submitted and provided to the structural engineer’s reference and use. A copy of the report will be provided for the Contractor’s reference.

C. Scope of Demolition:

1. Existing Oxygen Tank Farm

a. The CO2, NO and N gas cylinder manifolds will be removed (to be replaced with manifolds in the planned gas manifold building). Gas lines and connections are to remain for

Page V-2 extension to the manifold building. Refer to the plumbing section of this analysis.

b. The shallow aluminum canopy over the manifolds will be removed. Electrical and control wire conduit supported by the canopy will remain with Unistrut or similar bridging supports provided. Refer to the electrical section of this analysis.

c. The chain link fence and gates separating the oxygen tank farm from the service yard will remain. The fence separating the tank farm from the north storage area will be removed.

d. Bollards along both sides of the oxygen tank farm ramp will remain. The 5-inch high ramp runs east-to-west along the north side of the north stationary oxygen tank.

e. The existing concrete slab within the fenced in tank farm is to remain.

2. Service Yard

a. The concrete steps leading up to the loading dock will remain. The handrails at the steps will be removed. The bollards along the west side of the oxygen tank farm will remain.

b. The grease trap is to remain.

c. Sections of the service yard concrete slab under the planned gas manifold building and the two gas storage buildings will be saw-cut and removed. Refer to the structural section of this analysis.

3. Storage Area Canopy

a. The aluminum canopy sheltering the storage area abutting the north side of the oxygen tank farm will be removed.

b. All portable flammable gas cylinders and storage cabinets and other stored items will be relocated by the VA. Final location is to be determined by the VA.

c. The chain link fence separating this area from the oxygen tank farm will be removed.

4. Existing Pedestrian Circulation

a. The concrete steps at the south end of the elevated concrete landing at the Building 7 Telecommunication Room exit doors will be saw cut and removed to allow clearance for the planed gas manifold building.

b. The pipe guardrail system along the west and north sides of the Building 7 elevated landing will be removed.

Page V-3

c. Approximately 17 feet of the existing side walk and ramp between the elevated concrete landing and pesticide storage building and discharging onto the service yard will be removed.

5. Existing Pesticide Storage and Emergency Shower Area

a. The concrete floor at the emergency eyewash and shower station will be removed. The adjacent floor drain will remain.

b. The plumbing riser serving the emergency eyewash and shower head will remain. The eyewash and shower head will be realigned swinging north approximately 45 degrees thereby relocating the designated emergency shower station.

Refer to the plumbing section of this analysis.

c. The damaged gutter and three downspouts on the south side are to be removed.

d. Damaged canopy and support posts will be removed.

e. The damaged concrete curb and gutter along the south side of the canopy will be saw cut and removed.

6. GPR Survey

a. The survey located subsurface utilities and suspected utilities.

b. Live electrical lines were identified and located crossing the walkway between the electrical room and pesticide storage building.

c. Unknown pipe was located crossing the walkway between the telecommunications room and pesticide storage area.

d. Stormwater and domestic water lines were located crossing the service yard.

e. Unknown lines were located running from the emergency oxygen inlet to the oxygen tank farm.

f. The survey was record on a CAD file for A/E reference and VA files. A PDF copy of the survey will be provided for the Contractor’s reference.

D. Scope of Work:

1. Oxygen Tank Farm

a. The tank farm is currently located within a 3-wall court. The walls are building walls with the north wall being Wall #1, the east wall being Wall #2 and the south wall being Wall #3. Tanks must be separated from Wall #1 and Wall #2 with distances equal to or exceeding the respective wall heights.

Page V-4

Tanks must be a minimum of 1 foot off Wall #3. Effectively, the former storage area is the northern section of the tank farm. Tank distances between Wall #1 and Wall #3 are compliant meeting or exceeding wall height. The distance from the tanks to Wall #2 is not compliant. The existing yard is considered grandfathered.

b. A galvanized chain link fence with a 6-foot gate will be erected to separate the service yard from the northern half of the existing oxygen tank farm. The fence and gate running north-to-south will align with the existing fence and gates along the west side of the oxygen tank farm.

2. Service Yard

a. Construction vehicles will not be permitted to park or drive over the existing grease trap. The construction documents will note this requirement.

3. Gas Manifold and Gas Storage Buildings

a. The buildings will be provided with access control at double doors. Doors will be sized to accommodate hand trucks and a 42” wide by 82 ½” high existing forklift. Entrance doors will be 6’- 0” wide by 9’- 0” high. Panic hardware will be provided on the operable leaves. The height was increased to accommodate CMU coursing of the walls providing a 6’- 0” x 9’-4” masonry opening.

b. A secondary exit door at 3’-0” x 7’-0” will be provided for each building with panic hardware.

c. All doors and frames will be heavy duty blast resistant assemblies.

d. The buildings will fully be enclosed with 12-foot high concrete block walls. The exterior surfaces of the walls will be coated with smooth cement stucco over lath. Wall services will be painted with DOWSIL ALLGUARD silicone elastomeric coating.

e. As Basis-of-Design, interior concrete floor slabs will be coated with Neogard Peda-Gard waterproof epoxy membrane. Exterior concrete surfaces will be coated with Neogard Auto-Gard FC T waterproof system. Interior concrete floors will be coated with Peda-Gard M.

f. The roof framing system will be comprised of structural steel supported on tube steel posts. The steel frame system will be laterally connected to the concrete block walls.

Page V-5

g. The buildings will be designed to meet VA physical security and resiliency requirements. Refer to the structural section of this analysis.

h. All doors will be blast resistant with a minimum 14 gauge steel. There will be (3) double doors at 6’ x 9’ and (3) emergency exit doors at 3’ x 7’. An allowance has been provided in the estimate for these doors inclusive of hardware. The allowance is pending final numbers from the manufacturer.

i. These buildings will be mechanically ventilated to meet NFPA requirements. Refer to the mechanical section of this analysis.

j. All three buildings will have modified bituminous roofing over tapered insulation over a level structural roof framing system. Roof planes will sheet drain to continuous metal gutters and downspouts.

k. Removable bollards will be set inside the doors of the manifold building. These bollards will be located to protect the gas cylinder carts and set to allow passage of the 42 ½” side fork lift.

l. Removable bollards shall be placed between the storage building walls and service yard to protect the structures from potential vehicle damage.

m. Directional signage shall be wall mounted to clearly identify the existing emergency oxygen inlet location.

4. Pedestrian Circulation

a. Concrete steps at the south end of the Building 7 elevated landing be replaced. The steps will run along the north wall of the planned manifold gas building and connect to the realigned walkway.

b. The pipe railing system and handrails will be replaced on the landing and steps.

c. The concrete walkway will be replaced connecting the landing steps and existing electrical room exit walkway to the service yard. The path will be rerouted at an angle past the planned manifold building to connect to the service yard.

5. Pesticide Storage and Emergency Shower Area

a. The concrete floor at the emergency eyewash and shower will be repour and rotated 35.45° north to center on the adjusted eyewash basin and shower head.

Page V-6

b. The aluminum canopy and support posts will be replaced.

The aluminum canopy system will be Miami-Dade approved. The Contractor will provide the system with shop drawings in the configuration indicated in the construction documents. The Contractor shall also provide Miami-Date NOA documentation.

c. The canopy system will include continuous gutters and downspouts.

d. The canopy will connect to the south wall of the pesticide storage building. Counter flashing between the higher pesticide building and lower canopy will be replaced.

E. Phasing

1. Phasing I will include all demolition and work required to construct the manifold and gas storage buildings outside the existing oxygen tank farm. Existing gas manifold systems mounted onto the east wall of the existing oxygen tank farm will remain in operation. Once construction of the gas manifold and storage buildings is complete and manifold systems have been installed, connected, tested, operational and accepted by the Miami VAMC, Phase II work will commence.

2. Phase II will include all demolition of existing canopies and fencing and removal of the existing manifolds from the existing oxygen tank farm area. Construction hours are to be coordinated and scheduled with the COR. Hours could be scheduled from 6:30 am until 3:30 pm Monday through Friday and extend to evening and weekends as required.

3. Phasing notes will be included on the drawings.

F. VA Operations and Construction Coordination

1. Access to and from the Pesticide storage area and electrical room must be maintained during business hours and second or third shift hours as required. The exit pathway from must be maintained from the electrical room. The Contractor shall coordinate with the COR.

2. The entrance gate into the oxygen farm must be accessible during business hours as scheduled for oxygen and compressed canister deliveries. The Contractor shall coordinate with the COR.

3. The service yard is active with deliveries and dumpster removal weekdays from 6:30 am until 4:30 pm. Construction area will require demarcation to provide for concurrent service yard operation and construction activities. Some construction activities may require after hours work. The Contractor shall schedule and coordinate all work and area access with the COR.

Page V-7

4. Coordination and scheduling requirements will be noted on the drawings.

G. Codes and Standards:

1. VA Design Guidelines - Technical Information Library.

2. 2018 International Building Code with Florida amendments effective December 31, 2020.

3. 2021 NFPA 1 Fire Code

4. 2020 NFPA 55 Compressed Gasses and Cryogenic Fluids Code

5. 2020 NFPA 70 National Electric Code

4. 2021 NFPA 99 Health Care Facilities Code

6. 2021 NFPA 101 Life Safety Code

5. PG-18-13 VA Barrier Free Design Standard (revised 2018)

6. Architectural Barriers Act Accessibility Standards (ABAAS)

7. Resource Conservation and Recovery Act (RCRA) (42 U.S.C. 6901, et seq.)

8. The National Energy Conservation Policy Act (42 U.S.C. 8262g)

9. The Pollution Prevention Act of 1990 (42 U.S.C. 13101, et seq.)

10. Executive Order 13148 of April 21, 2000, Greening the Government through Leadership in Environmental Management

11. Executive Order 13101 of September 14, 1998, Greening the Government through Waste Prevention, Recycling, and Federal Acquisition; and Executive Order 13123 of June 3, 1999, Greening the Government through Efficient Energy Management

12. Refer to the structural, plumbing and electrical sections of this design analysis for additional codes and guidelines.

H. Items needed from the Government:

1. Approval of submittal.

VI. Mechanical

Secure Miami Gas Farm

Page VI - 1

VI. Mechanical

A. Project Description:

1. Provide HVAC design for the new medical gas storage and manifold spaces next to building 1 loading dock and building 7 at the Miami VA. Ventilation will be provided through exhaust systems and heating will not be required given the code requirements and local weather data provided by ASHRAE.

2. Design documents and other deliverables. As required by the contract the following products will be completed and delivered:

a. Construction drawings.

b. Construction specifications.

c. Construction cost estimate.

d. This design analysis, including HVAC load calculations as part of Appendix A.

B. Design and Technical Requirements:

1. Design Criteria:

a. Temperature for all three spaces must be kept below 125 °F and the manifold space must be kept above 20 °F per NFPA 99 section 9.3.6.

b. Ventilation requirements for the three spaces are determined by the volume of fluid stored in each space at standard temperature and pressure (STP). Per NFPA 99 - 2021 section 9.3.6, ventilation rate shall be 1 cubic foot per minute (CFM) per 5 cubic feet of fluid designed to be stored in the space and not less than 50 CFM and not more than 500 CFM.

C. Scope of New Work:

1. The temperature and ventilation requirements will both be met by the use of a centrifugal inline exhaust fan in each space. The fans are each designed for 500 CFM which meets or exceeds the mechanical ventilation requirements set out in NFPA 99 section

9.3.6 for the volume of fluid stored and the air exchange rate to maintain safe temperatures based on load calculations attached in Appendix A.

2. The inlet ductwork to the fans will terminate within 1 foot of the floor of the spaces and adjacent to gas cylinders as required in NFPA 99 and the ductwork in the spaces containing Nitrous Oxide gas will be of stainless steel construction as Nitrous Oxide is an oxidizer.

3. The outlet ductwork will terminate at a sidewall fixed blade louver meeting building code requirements for high velocity hurricane zones. Make up air will enter the spaces by a second, identical sidewall louver in each space.

Secure Miami Gas Farm

Page VI - 2

4. Gravity dampers will be utilized in the ductwork downstream of the exhaust fans.

5. Inline fans with sidewall terminations were chosen over roof mounted equipment in order to save time and money during design and construction by avoiding high velocity hurricane zone requirements for roof mounted equipment found in the Florida Building Code section 16 and ASCE-7 chapters 26-31.

6. The exhaust fans will each have a labeled emergency shut off control of break glass type outside the entrance to each space as required by NFPA 55 - 2020 section 6.17. Each space will have temperature monitored by a wall mounted temperature sensor to send an alarm if space temperature rises above 125 °F. The exhaust fans will run continuously to meet ventilation needs. A control panel will be provided for the three fans and their related control equipment to be connected to the existing campus’s DDC system.

D. Applicable Codes and Standards:

1. ASHRAE Fundamentals Handbook

2. ASHRAE Standard 55 – Thermal Environmental Conditions for Human Occupancy.

3. ASHRAE Standard 62 – Ventilation for Acceptable Indoor Air Quality.

4. ASHRAE Standard 90.1 – 2016 Energy Standard for Buildings Except Low-Rise Residential Buildings.

5. ASHRAE 170 – Ventilation of Health Care Facilities

6. International Mechanical Code

7. International Building Code

8. Florida Building Code

9. NFPA 70 - National Electrical Code.

10. NFPA 90A - Installation of Air Conditioning and Ventilating Systems.

11. NFPA 90B - Installation of Warm Air Heating and Air Conditioning Systems.

12. SMACNA Duct Construction Guidelines

13. VA HVAC Design Manual

14. NFPA 99 2021 – Health Care Facilities Code

15. NFPA 55 2020 – Compressed Gases and Cryogenic Fluids Code

VII. Plumbing

VII-1

VII. Plumbing

A. General Scope:

1. The scope of the project is to provide plumbing design to support the securing of the medical gas farm next to building 1 loading dock and building 7 at the Miami VA.

2. The plumbing design will include master and secondary alarm panel upgrades, waste, drain, domestic cold supply, carbon dioxide, nitrous oxide, and nitrogen for this area of approximately 556 square feet renovation.

B. Design Requirements:

1. Provide Plumbing system design for the master and secondary alarm panel upgrades, domestic cold-water supply, carbon dioxide, nitrous oxide, and nitrogen, sanitary sewer, and storm drainage systems to support the medical gas farm next to building 1 loading dock and building 7 at the Miami VA.

2. Design documents and other deliverables are to be provided as required by the contract. Deliverables, such as construction drawings, construction specifications, and design narrative will be prepared and provided as part of the design effort, whereas other deliverables, such as construction cost estimates, operation and maintenance manuals, and as-built drawings will be provided as part of the construction effort.

C. Demolition

1. Remove existing medical gas manifolds, piping back to limits of demolition, and equipment as indicated on the drawings. All deleted items shall be removed and discarded, unless noted otherwise on drawings.

2. All existing abandoned piping, fittings, valves, and hangers shall be removed and discarded.

D. New Work

1. New carbon dioxide, nitrous oxide, and nitrogen manifolds and local alarms will be provided. The carbon dioxide, nitrous oxide, and nitrogen piping shall be routed and connected to the existing carbon dioxide, nitrous oxide, and nitrogen piping. The new manifolds shall be connected to the new master and secondary master alarm panel system upgrades.

2. New domestic cold-water supply will be connected to the existing domestic cold-water supply piping to serve the new hose bib.

3. New sanitary sewer piping will be connected to the existing sanitary sewer stack and routed in loading dock courtyard.

4. New carbon dioxide, nitrous oxide, and nitrogen piping will be connected to the existing carbon dioxide, nitrous oxide, and nitrogen piping to serve the existing building supplies.

VII-2

5. Replace the existing master alarm panel face and existing alarm panel face. The existing alarm panel back boxes and wiring shall remain.

Coordinate the interface of the existing to the new alarm face panels.

E. Applicable Codes and Standards:

As a minimum, the plumbing system will be designed to meet the requirements of the following codes and standards:

1. Department of Veterans Affairs Plumbing Design Manual (PG-18-10).

2. Department of Veterans Affairs Medical/Surgical Inpatient Units and Intensive Care Nursing Unit Design Guide (PG-18-13).

3. NFPA 99, Health Care Facilities Handbook.

4. NFPA 101, Life Safety Code Handbook.

5. Guideline for Design and Construction of Health Care Facilities.

6. American Institute of Architects Academy of Architecture Health (AIA).

7. American Society of Plumbing Engineers (ASPE).

8. American Water Works Association (AWWA).

9. Department of Veterans Affairs Barrier Free Design Guide (PG-18-13).

10. Architectural Barriers Act Accessibility Standards (ABAAS).

11. American with Disabilities Act (ADA).

12. National Fire Protection Association (NFPA).

13. ICC, International Plumbing Code.

14. ICC, International Building Code.

15. Local and State Codes.

F. Plumbing system description:

1. The domestic hot water supply and return system piping, fittings, and valves will be insulated with mineral fiber pipe insulation including valves. Valves will be provided with a long stem for operation use without removing insulation.

2. The domestic cold-water supply system piping, fittings, and valves will be insulated with flexible elastomeric type insulation including valves.

Valves will be provided with a long stem for operation use without removing insulation. When it is wetted, flexible elastomeric insulation will not degrade like fiberglass insulation. Flexible elastomeric insulation’s construction also acts as a vapor retarder.

3. All ball valves shall be full port bronze bodies.

4. Sanitary sewer drainage and vent system

VII-3

a. Plumbing fixtures above grade will be drained by gravity through Sanitary Sewer drains to five feet outside the building.

b. Adequate gradients will be maintained to insure a self-cleansing velocity. Cleanouts will be provided per code.

c. The sanitary drainage system will be pitched to maintain flow at a minimum velocity of 2 fps.

1. Piping 2 inches and smaller shall be pitched at 1/4 inch per foot.

2. Piping 3 inches and larger shall be pitched at 1/8 inch per foot.

5. Medical gas and vacuum

a. The type and quantity of medical gas manifolds will be in accordance with the Department of Veterans Affairs Plumbing design manual or the Department of Veterans Affairs design guide, and NFPA 99 Health Care Facilities Handbook. The more stringent of the two guides will be used. Medical gas manifolds are shown on the design drawings.

b. Medical gas and vacuum piping will be per NFPA 99.

c. Local alarms will be located at manifolds.

d. New master alarm panel face and secondary master panel face shall utilize the existing alarm panel back boxes.

G. Material:

1. Sanitary sewer and vent piping systems shall be service weight cast iron, no-hub with heavy-duty CISPI couplings for above ground and service weight cast iron hub and spigot for below grade.

2. The domestic cold-water supply will be hard copper tube, type L or type K with wrought copper fitting and soldered joints. Solder will be lead-free, 95-5 type solder.

3. The carbon dioxide, nitrous oxide, and nitrogen piping will be copper tube, type K, cleaned for oxygen.

H. VHA Directive 1061 compliance (Not applicable for this project)

VIII. Electrical

Page VIII - 1

VIII. Electrical

A. Project Description:

1. The scope of this project is to support the new medical gas farm and storage areas next to building 1 loading dock and building 7 at the Miami VA. All electrical components, equipment and enclosures in the enclosed medical gas farm and gas storage areas will be rated for Class I Division 2 per NFPA 70 2020 Section 500.5.

B. Existing Conditions:

1. (2) Existing Cree lighting fixtures are mounted under existing canopy that is to be removed.

2. The (3) existing gas manifolds are supplied at 120V from a non-emergency circuit.

3. Existing security camera signal wiring is routed from 1B166.

C. Scope of Demolition Work:

1. The (3) existing 120V power connections to the gas manifolds and all associated conduit and wire back to source shall be removed and demolished.

2. The (2) existing Cree light fixtures under the canopy area are to be demolished. All associated wiring, conduit and appurtenances are to be demolished back to source.

3. Existing CCTV security camera will be removed at demolition stage to be reinstalled at a new location at new work stage. The existing security camera is in the location where one of the gas storage areas will be.

D. Scope of New Work:

1. New power connections will be provided to the (3) new single phase 120V gas manifolds; (1) manifold for nitrous oxide, (1) manifold for carbon dioxide and (1) manifold for nitrogen. Existing gas manifolds are supplied from a non-emergency circuit; however, it was indicated by the VA that the (3) new replacement gas manifolds shall be fed from an emergency circuit (Electrical Panel APEM).

Control/ signal cables and conduit for (3) new manifolds to be provided and installed by manifold installer/ . Control/ alarm cables are to be routed in conduit back to alarm panel.

2. New lighting rated for Class I Division 2 will be provided for the secure medical gas farm and storage areas. The new lighting in the area shall be fed from the ‘ALEM’ 277V/480V emergency electrical panel. New single pole 277V light switches rated for Class I Division 2 hazardous areas will be used to control lights.

Page VIII - 2

3. (3) new wall pack LED fixtures, will be installed above where the existing canopies to be removed are. The wall packs will match existing wall packs on the building and will be mounted at the same height.

4. All wall mounted electrical equipment in the Class I Division 2 area (the secure medical gas farm) shall be provided in NEMA 4 enclosure.

5. Any conduit crossing through a hazardous classified space (or under the slab), must have a conduit seal prior to entering or after exiting the space.

6. For connections to explosion proof equipment, conduit seals will be required in accordance with NEC 2020 501.15(A)(1)(1) and (A)(3).

7. Access control systems will be provided and installed for the new doors leading to the medical gas farm and storage areas. All devices, conduit, and cabling to be provided and installed by contractor. Door access control will be powered from 120/208V emergency panel ‘APEM’. Contractor to route access control wiring back to access control panel in room E11 in conduit. Programming of door access control to be carried out by factory authorized personnel.

8. (3) New Class I Division 2 rated security cameras in the medical gas farm and storage areas will be installed. Contractor will provide and install all components, wiring, conduit and associated appurtenances. Security camera will be powered from 120/208V emergency panel ‘APEM’. Programming of security camera to be carried out by factory authorized personnel. Contractor to route CCTV signal/ control wiring in conduit back to room E11.

Programming of camera to be carried out by factory authorized personnel.

9. New power connection to exhaust fans and DDC will be provided.

E. Codes and Standards

1. All applicable state and local codes and amendments

2. American National Standards Institute – ANSI.

3. International Building Code

4. Institute of Electrical and Electronic Engineers - IEEE C2 National Electrical Safety Code 2017

5. National Electrical Manufacturers Association – NEMA

6. National Fire Protection Association – NFPA 70, National Electrical Code 2020

7. National Fire Protection Association – NFPA 101 Life Safety Code

8. Underwriters Laboratories, Inc. Publications

Page VIII - 3

9. National Fire Alarm Association – NFPA72, National Fire Alarm Code 2019

10. All applicable Unified Facilities Criteria (UFC) as of October 2020.

11. National Fire Protection Association – NFPA 55, Compressed Gases and Cryogenic Fluids Code 2020

12. National Fire Protection Association – NFPA 99, Healthcare Facilities Code 2018

IX. Fire Protection

Page IX - 1

IX. Fire Protection

A. Codes and Standards

1. ICC, International Code Council, 2018 Edition

2. IFC, International Fire Code, 2018 Edition

3. NFPA 13, Installation of Sprinkler Systems, 2019 Edition

4. NFPA 25, Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems, 2020 Edition

5. NFPA 101, Life Safety Code, 2018 Edition

6. NFPA 241, Standard for Safeguarding Construction, Alteration, and Demolition Operations, 2018 Edition

7. Department of Veterans Affairs, Fire Protection Design Manual

8. NFPA 55, Compressed Gases and Cryogenic Fluids Code 2020

9. NFPA 99, Healthcare Facilities Code 2018

B. Project Description:

1. The scope of this project is to support the new medical gas farm and storage areas next to the building 1 loading dock and building 7 at the Miami VA. The medical gas farm enclosures will require an automatic wet pipe sprinkler system extended from the existing sprinkler system in Building 1.

C. Existing Conditions:

1. The Miami VA has a wet pipe sprinkler system within the facilities.

D. Scope of Demolition Work:

1. The nearest wet pipe branch lines will need to be extended to the new gas farm buildings. The Miami VA walls adjacent to the new enclosures will need to be penetrated to extend wet pipe branch lines.

E. Scope of New Work:

1. The contractor will provide a layout of new sprinklers with branch lines and associated piping drops. The new layout shall provide operable sprinkler coverage that, within the scope of work, is in full compliance with NFPA 13.

D. Technical Analysis:

1. The following is the basis of design:

a. Modify the automatic wet pipe sprinkler system to provide coverage for the renovated area. The requirements listed below will be incorporated into the design for all areas.

Hydraulic calculations are not required due to the limited number of sprinkler heads in the design.

Page IX - 2

1) Sprinkler protection for the entire area shall be installed to the standards of NFPA 13 for ordinary hazard group 2.

2) Coverage per sprinkler head;

Light Hazard is 225 ft2.

Ordinary Hazard is 130 ft2

3) Design density;

Light Hazard is 0.10 gpm per ft2

Ordinary Hazard Group 2 is 0.20 gpm per ft2

4) Maximum spacing per sprinkler head shall not exceed limits specified in NFPA 13.

Appendix A Data Sheets & Calculations

Appendix A1:

Architectural

Technical Data Sheet

DOWSIL™ AllGuard Silicone Elastomeric Coating

UNRESTRICTED – May be shared with anyone ®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow DOWSIL™ AllGuard Silicone Elastomeric Coating Page 1 of 7 © 2017–2019 The Dow Chemical Company. All rights reserved. Form No. 62-048-01 U

Water-based silicone elastomer for waterproofing above-grade exterior masonry substrates

Features & Benefits

• Provides long-term waterproofing protection

• Maintains water protection properties even when exposed to sunlight, rain, snow, or temperature extremes

Composition • One-component, pigmented, water-based silicone elastomer

Applications • DOWSIL™ AllGuard Silicone Elastomeric Coating is designed to waterproof above-grade exterior masonry substrates, such as concrete block, fluted block, brick, stucco, synthetic stucco, poured concrete, precast concrete, exterior insulation finish systems (EIFS), and previously coated masonry substrates.

Typical Properties Specification Writers: These values are not intended for use in preparing specifications.

Test1 Property Unit Result

ASTM D 2369 Solids Content % by weight % by volume

58.6 50.1

ASTM D 1475 Specific Gravity lb/gal (kg/L) 9.64 (1.155)

ASTM D 2196 Viscosity2 cps (Pa s) 37,500 (37.5)

ASTM D 1849 High Temperature Stability (no change in viscosity) days > 28

EPA Method 24 Volatile Organic Content3 (VOC) g/L (lb/gal) < 50 (< 0.42)

As Cured

ASTM D 2240 Durometer Hardness, Shore A points 38

ASTM D 412 Tensile Strength psi (MPa) > 145 (1.00)

ASTM D 412 Elongation % 600

ASTM D 1653 Permeance English perms (ng/(m2.Pa.s)) 43.2 (2480)

1. ASTM: American Society of Testing and Materials.

2. Brookfield HAV, spindle #3, 2 rpm.

3. VOC includes all approved colors (EPA method 24 or 40 CFR 59.406 data).

DOWSIL™ AllGuard Silicone Elastomeric Coating Page 2 of 7 © 2017–2019 The Dow Chemical Company. All rights reserved. Form No. 62-048-01 U

Typical Properties (Cont.)

Test Property Unit Result

ASTM D 522 Room Temperature, Flex, 1/8” mandrel Pass

ASTM C 711 Low Temperature Flex, 1/4" mandrel Pass

ASTM D 3274 Fungus Resistance No growth

ASTM D 6904 Wind Driven Rain4 Pass

ASTM D 2243 Freeze/Thaw Resistance No Change

4. Measured on coating system with two coats (10 mil dry film thickness) of DOWSIL™ AllGuard Silicone Elastomeric Coating.

Description DOWSIL™ AllGuard Silicone Elastomeric Coating is a one-part, 100 percent water-based silicone elastomer supplied in three tint bases for pigmenting at distributor locations. The coating is typically applied in two coats. The use of DOWSIL™ AllGuard Primer may be necessary based on the substrate. The coating can be roller, brush, or spray applied. It cures to form a flexible membrane that is impervious to water but has the ability to “breathe,” allowing water vapor to escape from inside the substrate. Its matte finish minimizes brush and roller marks. The coating provides long-term waterproofing protection, withstanding hurricane-force, wind-driven rain; normal movement imposed by seasonal thermal contraction and expansion; ultraviolet radiation; and the elements. The coating maintains its water protection properties even when exposed to sunlight, rain, snow, or temperature extremes.

Once pigmented, it is a ready-to-use material that can be applied between -6°C (20°F) and 38°C (100°F) to a clean, dry surface. The average drying time is 4 to 8 hours, depending upon temperature, humidity, and wind conditions. If the temperature drops below -6°C (20°F) after the coating is applied, the average drying time will increase. DOWSIL™ AllGuard Elastomeric Coating requires temperatures higher than -6°C (20°F) for a cumulative total of 24 hours to dry.

DOWSIL™ AllGuard Silicone Elastomeric Coating will attain full adhesion and physical properties in 7 to 14 days.

DOWSIL™ AllGuard Silicone Elastomeric Coating is available in more than 55 standard colors or can be custom colored to order.

How to Use When properly applied and cured, DOWSIL™ AllGuard Silicone Elastomeric Coating provides a fast, easy, and effective method of keeping exterior above-grade surfaces waterproof.

Design Considerations In many building designs, areas such as ledges and windowsills allow air-borne dirt and soot to accumulate. Surfaces exposed to concentrated water run-down may appear dirty or streaky over time and the coating may become difficult to clean. In those areas, drip edges should be installed before the coating is applied to rechannel water away from the surface to protect the long-term appearance of the facade.

DOWSIL™ AllGuard Silicone Elastomeric Coating Page 3 of 7 © 2017–2019 The Dow Chemical Company. All rights reserved. Form No. 62-048-01 U

How to Use (Cont.)

Design Considerations (Cont.)

The success of a drip edge is achieved by moving the runoff water away from the wall onto the drip edge, creating a non-uniform runoff.

A drip edge can be fabricated from the same material as the windowsills or from other formable composites. The drip edge can be mechanically adhered to the substrate or attached with DOWSIL™ 795 Silicone Building Sealant (see Figure 1).

Figure 1:

Drip Edge Design Consideration

Surface Preparation All surfaces to be coated with DOWSIL™ AllGuard Silicone Elastomeric Coating must be prepared as described in the most recent DOWSIL™ AllGuard Silicone Elastomeric Coating Application and Maintenance Guide (Form No. 62-617). The following is a short reference guide for surface preparations.

All surfaces must be clean and free of dirt, frost, dust, oil, grease, mold, fungus, efflorescence, laitance, peeling coating, chalking coating, and any other foreign material.

Green concrete must be allowed to cure 28 days before application of DOWSIL™ AllGuard Silicone Elastomeric Coating (see “Limitations”). Pressure clean, wire brush, or grind the wall surface to remove all of the above materials. Repair any damaged concrete, stucco, block, brick, masonry, or EIFS. Repair cracks larger than 1/16" (1.6 mm) with a material that is compatible with the substrate and DOWSIL™ AllGuard Silicone Elastomeric Coating.

DOWSIL™ 790 Silicone Building Sealant or DOWSIL™ 795 Silicone Building Sealant or DOWSIL™ 791 Silicone Weatherpoofing Sealant can be used for crack repairs.

DOWSIL™ AllGuard Silicone Elastomeric Coating Page 4 of 7 © 2017–2019 The Dow Chemical Company. All rights reserved. Form No. 62-048-01 U

How to Use (Cont.)

Coating A minimum of two coats of DOWSIL™ AllGuard Silicone Elastomeric Coating are necessary to achieve the required 10 mil (0.25 mm) minimum dry film thickness to attain protection against through-water penetration and to qualify for a project-specific warranty.

Apply the coating in a 10 mil (0.25 mm) wet thickness (a job-specific mockup is recommended to determine actual usage). Due to DOWSIL™ AllGuard Silicone being 50% solids, two thick wet coats (10- to 12-mil [0.25- to 0.30-mm]) will result in the required 10-mil (0.25-mm) dry coating thickness. On occasion, a third coat may be necessary on porous or rough surfaces to achieve the minimum dry film thickness.

Apply using a ¾ to 1½" (19 to 38 mm) nap, polyester, or 50/50 polyester/wool blend roller cover, nylon bristle brush, or airless sprayer. When applying the coating with a roller, apply it in a fan pattern to achieve uniform thickness. Always finish roller applications in the same direction to reduce visual surface texture differences. When applying with an airless sprayer, follow the spray application with a back roll of material to ensure a uniform coating and appearance.

Allow the coating to dry (typically 2 to 4 hours) before applying additional coats. Note: Do not thin or cut back DOWSIL™ AllGuard Silicone Elastomeric Coating.

After the additional coat has been applied, the average drying time is 4 to 8 hours, depending upon temperature, humidity, and wind conditions. DOWSIL™ AllGuard Silicone Elastomeric Coating will attain full adhesion and physical properties in 7 to 14 days.

DOWSIL™ AllGuard Silicone Elastomeric Coating Page 5 of 7 © 2017–2019 The Dow Chemical Company. All rights reserved. Form No. 62-048-01 U

How to Use (Cont.)

Low Temperature Application If temperatures drop below -6°C (20°F), the coating will freeze on the surface until the temperature increases. This will not affect the cured properties of the coating, but will extend the drying time.

The coating should be dry to touch, not simply freeze between coats. Application equipment such as rollers and the tips of spraying equipment should be kept above 0°C (32°F) when not in use.

DOWSIL™ AllGuard Silicone Elastomeric Coating was developed to obtain good adhesion to the substrate without the need of a primer. To verify that this adhesion is sufficient, field adhesion tests must be performed as described in the DOWSIL™ AllGuard Silicone Elastomeric Coating Application and Maintenance Guide. If adhesion does not meet requirements, a field adhesion test with primer should be performed. To obtain a project-specific warranty, field adhesion testing, meeting the requirements, must be performed and documented. Surface adhesion tests on each type of substrate and each face of the structure must be field adhesion tested and acceptable per the DOWSIL™ AllGuard Silicone Elastomeric Coating Application and Maintenance Guide.

Maintenance Walls should be inspected at least once a year. If coating becomes damaged, repair damaged portion to maintain weatherproofing performance. Any touch-ups or repairs to the coating can be completed by applying DOWSIL™ AllGuard Silicone Elastomeric Coating to the clean, dry area in accordance to the recommendations in this data sheet and the DOWSIL™ AllGuard Silicone Elastomeric Coating Application and Maintenance Guide.

Dow recommends routine cleaning to minimize dirt accumulation, following these guidelines:

1. Abrasive cleaners and cleaning equipment should never be used.

2. Clean using pressurized water and a basic cleaning agent such as TSP (Trisodium

Phosphate)1 or Simple Green. Water pressure should not exceed 1,500 psi (10.3 MPa) to clean the surface without removing the coating material from the wall surface. A small test patch should be done first to determine how long the cleaning agent should be left on the surface before rinsing.

3. Removal of stubborn marks may require the use of a soft bristle brush with the cleaning solution. Avoid stiff brushes that may abrade the coating.

1Follow solvent manufacturer’s recommended safe handling instructions and applicable federal, state, and local laws.

Handling Precautions

PRODUCT SAFETY INFORMATION REQUIRED FOR SAFE USE IS NOT INCLUDED IN

THIS DOCUMENT. BEFORE HANDLING, READ PRODUCT AND SAFETY DATA SHEETS

AND CONTAINER LABELS FOR SAFE USE, PHYSICAL AND HEALTH HAZARD

INFORMATION. THE SAFETY DATA SHEET IS AVAILABLE ON THE DOW WEBSITE AT

CONSUMER.DOW.COM, OR FROM YOUR DOW SALES APPLICATION ENGINEER, OR

DISTRIBUTOR, OR BY CALLING DOW CUSTOMER SERVICE.

DOWSIL™ AllGuard Silicone Elastomeric Coating Page 6 of 7 © 2017–2019 The Dow Chemical Company. All rights reserved. Form No. 62-048-01 U

Usable Life and Storage

Protect DOWSIL™ AllGuard Silicone Elastomeric Coating and DOWSIL™ AllGuard Primer from freezing. Store in a cool, dry place out of the weather. When properly stored in its original, unopened container above 1°C (34°F) and below 32°C (90°F), DOWSIL™ AllGuard Silicone Elastomeric Coating and DOWSIL™ AllGuard Primer have shelf lives of 9 months and 18 months, respectively, from date of manufacture. Refer to product packaging for “Use by Date.”

If DOWSIL™ AllGuard Silicone Elastomeric Coating is stored at temperatures below -6°C (20°F) for longer than 8 hours, the coating will start to freeze. Allow the DOWSIL™ AllGuard Silicone Elastomeric Coating to sit at temperatures greater than 20°F for at least 8 hours or until the material thaws before application.

Packaging Information

DOWSIL™ AllGuard Silicone Elastomeric Coating and DOWSIL™ AllGuard Primer are available in 5 gal (19 L) pails (42–46 lb [19–21 kg] per pail depending on color).

Limitations DOWSIL™ AllGuard Silicone Elastomeric Coating should not be applied:

• When there is a threat of rain within the next 24 hours or the relative humidity is in excess of 90 percent (because conditions would not permit complete surface drying)

• On below-grade applications

• On non-masonry substrates such as metal, wood,…