36E77619B0012-006.pdf

Design Narrative

E design@spur-design.com W spur-design.com

PROJECT NAME: 649-413 Radiology Expansion at NAVAHCS

SPUR PROJ. NO.: 1395.24

SUBJECT: 100% Construction Documents - Architectural DATE: November 1, 2018

Project Overview and Background

The proposal received from the NAVAHCS called for an enlargement of the Diagnostic Imaging Department to approximately 14,700 square feet (+/- 10%) by adding new space and remodeling the “A” wing of the first floor of Building 107. The work is to include a complete demolition of the existing Lab Expansion which consists of approximately 3000 square feet. A summary overview of the project objectives through new construction and renovation includes:

a. An optimized footprint for the department with a centralized waiting room, wide hallways, and sufficiently large rooms for efficient operation of each piece of equipment;

b. A location as close as possible to Building 117 (Outpatient Care) while still providing accessibility to inpatient units.

c. Ground level access for the entire Radiology Department.

d. Future capability of adding a second story that can be accessed from the second floor of

Building 107 (provide the structure and utilities necessary for a second floor and if necessary the space for the elevator and access stairs).

e. A full utilities crawl space.

f. Construction that meets the requirements of the VA’s Physical Security Design Manual for

Mission Critical facilities.

g. High efficiency building shell and HVAC systems that meet the VA’s energy requirements for new construction.

h. A design and layout that supports patient privacy and meets the Safe Patient Handling requirements.

i. A design that meets the requirements and objectives of the Women Veterans Health Care program.

j. A domestic water system that minimizes the risk of Legionella to the greatest extent possible.

k. Design elements that minimize the spread of communicable diseases, such as UV sterilizers in the air handlers and use of copper touch surfaces.

l. A design that supports the VA’s PACT model.

m. Provide natural light in the new building in order to increase staff productivity and enhance mood of mental health patients.

n. Provide personal control of lighting levels to reduce glare on computer screens.

o. Design the facility to include discrete security and safety features for the patients and staff, paying particular attention to the possible behaviors of patients in severe emotional distress.

p. Implement walls and doors with high sound transmission coefficient ratings, provide check-in locations that are as private as possible, and other architectural and engineering controls that allow private communication throughout the facility.

q. The architectural style of the building must complement the historic character of the site.

New construction must be approved by the State Historic Preservation Officer prior to construction.

All areas will be designed under the latest VA design guidelines listed:

a. Radiology Service Design Guide (April 2008)

b. MRI Design Guide (April 2008)

c. Nuclear Medicine Guide (April 2008)

d. VA Barrier Free Design Guide (Revised June 6, 2017)

e. Cultural Resources Management Procedures (December 5, 2011

After reviewing the existing space to be remodeled and inserting data collected via survey from the

Building Occupancy and Construction Classifications

Building Occupancy, Construction Classifications and Fire Ratings are all based upon, and in accordance with, NFPA 101 Life Safety Code 2015 Edition.

The building occupancy is a New Healthcare Occupancy, which is covered by Chapter 18 of the NFPA 101.

The total area for the project is approximately 15,334 square feet. 7144 square feet of existing remodeled space and 8,190 square feet of new addition space. The non-occupiable basement below the new addition totals 7,600 square feet (5,822sf of Basement and 1,778sf of Crawl Space).

The Construction Type is to be Type II (111). A minimum 1-hour fire rating is required columns, beams, girders, trusses, floor-ceiling assemblies, exterior bearing walls, interior bearing walls, and roof-ceiling assemblies. There are no fire rating requirements for interior non-bearing walls. There are no rating requirements for exterior non-bearing walls based on a minimum separation of 30’-0” from adjacent structures.

Non-combustible materials or limited combustible materials are used for the structural frame, floors, roof deck, exterior non-bearing walls and interior non-bearing walls.

The building is currently equipped with a fully automatic fire suppression sprinkler system.

Certain rooms will have partitions and openings designed to serve as barriers for the passage of smoke, including, but not limited to:

- Utility rooms

- Housekeeping Aide Closets (HAC)

- Storage rooms (2)

1-hour Fire Barriers will be installed at:

- Southeast stair enclosure

- Mechanical Shafts

- Electrical Room

- Communications Room

Building Materials

Exterior wall construction consists of 6” cold-formed metal framing with 5/8” interior gypsum board finish and exterior plaster finish. There are two exterior wall assemblies to be considered.

1. Interior to Exterior:

5/8” gypsum board 6” cold-formed metal framing w/R-13 batt insulation Sheathing Weather barrier 1-1/2” EIFS (min. R-7.5)

Roof construction consists of steel framing and metal decking with a tapered insulation T.P.O. roofing system.

First Level floor construction consists of steel framing and metal decking with concrete topping.

Basement Level floor construction is concrete slab on grade.

Construction Phasing

Project to be phased to not interrupt health care services. Plans to be developed and approved to eliminate interruptions or kept to an absolute minimum. Emergency access (to or from nearby buildings) must not be compromised during construction. The work effort as suggested in the original Scope of Work falls into a general phased sequence of construction:

1. Site Preparation

2. Construction of new buildings

3. Landscaping and paving

4. Building accessories installation and final approvals