Launch Slideshow

Juliet Rice Wichman Botanical Research Center

Dean Sakamoto Architects designed the research center at the National Tropical Botanical Garden to be both hurricane-resistant and the first LEED building on Kauai.

Juliet Rice Wichman Botanical Research Center

Dean Sakamoto Architects designed the research center at the National Tropical Botanical Garden to be both hurricane-resistant and the first LEED building on Kauai.

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    Mariko Reed

    Juliet Rice Wichman Botanical Research Center

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    A
    World Mix reclaimed hardwood siding

    TerraMai
    www.terramai.com
    Wood is sourced from discarded tropical hardwood shipping crates
    • Milled with a shiplap profile with a ¼-inch reveal
    • Mix includes wood species such as balau, pyinkado, mempening, bintagor, agoho, rengas, mertas, simpoh, and thitka
    • All wood is FSC-certified recycled
    • Standard dimensions are 2½ inches wide and ? inch thick
    • Comes unfinished

    B
    Sun-Proof clear exterior wood stain

    Pittsburgh Paints
    www.pittsburghpaints.com
    Provides UV protection for wood
    • One-coat coverage
    • Available in acrylic/oil and alkyd/oil formulations
    • Can be used on new, weathered, and pressure-treated wood
    • Acrylic can be cleaned up with soap and water

    C
    Sightlines recessed lighting fixture

    Rebelle Architectural Lighting
    www.rebellelighting.com
    Three lines available: Maxi, Midi, and Mini
    • Cast-aluminum housings
    • Fixtures are fully gasketed and are available with tamper-resistant hardware
    • Available with metal halide, high-pressure sodium, and compact fluorescent sources
    • Round and rectangular profiles
    • Addresses needs for low-level area lighting and recessed and compact step and path lighting

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    PowerGate Plus photovoltaic system inverter
    Satcon Technology Corp.
    www.satcon.com
    11 models available, ranging from 30 KW to 1 MV
    • All models feature a maximum power-point tracking system that can improve performance by up to 20 percent
    • Can be specified in conjunction with PV View Plus, an integrated monitoring system to track power levels and variables systemwide
    • Maximum array input voltage is 600 volts, DC power

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    SentryGlas Plus exterior glazing interlayer

    DuPont
    www.dupont.com
    Stiffer than PVB
    • Comes in four thicknesses
    • Remains free of clouding over time
    • Can be specified with reflective coated or low-E glass
    • Patterns available in SentryGlas Expressions

    B
    Mini Forecast series linear fluorescent fixture

    Forum
    www.forumlighting.com
    Available in 2-, 3-, 6-, or 8-inch widths
    • The 3x3 series permits T8 lamping options in addition to T5 and T5HO
    • Blade baffles or flat and linear lenses can be incorporated
    • Can be used as a direct, indirect, or indirect/direct fixture

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    Acoustical ceiling panels

    Tectum
    www.tectum.com
    High-impact wood fiber panels
    • Abuse resistant
    • Can be installed in a grid system or direct-attached
    • Available in unpainted natural, white, or custom colors
    • R-value is 1.75 per inch
    • Light reflectance is up to 0.75
    • Available product lines include lay-in, Tonico, Multiplane, V-line, and Designer Series panels

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    SmartOne intelligent smoke detector

    Fenwal Protection Systems
    www.fenwalfire.com
    Three types of detection available: ionization, photoelectric, and thermal
    • Built-in microprocessor allows detectors to communicate with one another across the system, sounding a general alarm if smoke is detected at one point
    • Automatically returns to prior programming after system gives all-clear
    • SmartOne system includes detectors, contact input and relay output devices, signal module, air duct smoke detectors, and heat detectors

    B
    Nova T lighting controls

    Lutron
    www.lutron.com
    Line of matching lighting controls, fan-speed controls, and accessories
    • No visible metal heat sink
    • Power failure memory
    • Heavy-duty components offer security against power surges
    • Incandescent and fluorescent dimmers and general switches available
    • Seven plastic wallplate colors, three metal and five specialty metal wallplate finishes, and three anodized aluminum wallplate options available

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    F-Style interior glass door

    PRL Glass Systems
    www.prlglass.com
    Heavy-glass door series
    • Corner patch rails available in polished or satin-finished stainless steel or brass, and anodized painted finishes
    • Metal push/pull hardware available in several standard finishes, and custom finishes
    • Glass options include ¼- to ¾-inch laminated or tempered glass and 1-inch insulated glass units
    • Aluminum header and pivot system

    B
    ProRoc moisture- and mold-resistant gypsum board

    CertainTeed Corp.
    www.certainteed.com  
    Water resistant
    • Sheets measure ½ inch thick and 4 feet wide
    • Standard lengths are 8 and 12 feet
    • Tapered edge detail
    • Special widths and lengths are available by special order
    • Face paper is water resistant and can be directly painted or prepared for laminate or wallpaper
    • Framing locators provided for quicker application
    • Meets ASTM C 1396 and C 840 standards
    • Type X board has a fire-resistant core

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    Classic concrete floor stain

    Lithochrome Chemstain
    Scofield Systems
    www.scofield.com
    Penetrating concrete stain provides permanent translucent color
    • No chipping or peeling
    • Multiple applications can intensify color
    • Can be applied with acid-resistant hand-pump sprayers
    • Should be used in conjunction with a concrete sealer to protect surface
    • Available in eight standard colors, with color variation if applied with Lithochrome Color Hardener
    • Average coverage is 200 to 300 square feet per gallon per coat

Despite sitting squarely in hurricane territory, the island of Kauai has very few buildings made almost entirely from concrete. But in 2003, when architect Dean Sakamoto was asked to complete Vladimir Ossipoff's original master plan for the National Tropical Botanical Garden (NTBG) by designing the Juliet Rice Wichman Botanical Research Center, concrete was the best option. “The building had to be lean [financially], but had to be a 100-year building, and also needed to withstand hurricanes,” says Sakamoto, describing just a few of the structure's requirements. The final design is a two-level structure cut into a hill above the garden—the building's second level is all that is visible from the street.

It was during the construction process, however, that Sakamoto's team learned at least one of the reasons concrete is used so sparingly in the environment: The island has only one ready-mix plant, and only 10 cement trucks that carry 10 cubic yards apiece, meaning that the 320-cubic-yard pour that had to be completed for the building's second-story floor plate required a carefully choreographed train of trucks going back and forth from the site to the plant, hoping that the traffic gods were with them.

Despite the unconventional pour, the concrete helped meet another requirement for the design: earning LEED Gold certification. Committed as a LEED building from the start, the research center is the first green building on the island and was a learning process for the client, the craftspeople, and the architect himself. “I introduced them to LEED,” says Sakamoto. “I hadn't done a LEED building before, but I was a member of the U.S. Green Building Council.”

To maximize the building's sustainable potential, a photovoltaic (PV) array on the roof contributes to the building's energy load. “PV panels are fused to the roof,” says Sakamoto. “The perimeter of the panels has a fringe that is the same material [as the roofing membrane], so the panels were heat-welded to the roof. This avoids points of penetration, and the panels don't act as sails in high winds.”

  • Dean Sakamoto
Principal 
Dean Sakamoto Architects

    Credit: Mariko Reed

    Dean Sakamoto
    Principal
    Dean Sakamoto Architects
The PV panels are part of a larger active roof system that allows light penetration into the building through skylights and collects rainwater. The rainwater collects and moves quickly across the TPO roofing membrane and collects in a 25,000 gallon cistern. “The garden has a real issue,” says Sakamoto. “The existing irrigation system doesn't have enough power to push water up the hill. Now, the spigot can be opened, and gravity takes the water to the garden below.”

On the building interior, the architect kept materials to a minimum, including staining the concrete floor with Lithochrome Chemstain from Scofield Systems instead of installing carpet or hardwood. Wherever possible, glass separates the enclosed spaces so that views are maintained and light can enter. The spaces are open, allowing the NTBG to install shelves to hold the 56,000 plant species that constitute the institution's herbarium. A rare-book room on the lower level holds one of the nation's largest collections of antique botany books, the bequest of which sped up the building's timeline. An HVAC system maintains humidity levels throughout, combatting the moist tropical air. “The building is basically hermetically sealed,” Sakamoto jokes.

Sakamoto credits careful planning for keeping the project on track. And on track it was—the idiosyncrasies of using concrete on an island aside, the building was completed two months ahead of schedule and $500,000 under the $11 million total budget.

 

Project: Juliet Rice Wichman Botanical Research Center
Location: Kalaheo, Hawaii
Client: National Tropical Botanical Garden—Charles R. Wichman Jr. (chief executive officer and director)
Architect: Dean Sakamoto Architects, New Haven, Conn.—Dean Sakamoto (principal); Kenneth Kajiwara (associate); Jim Reilly (job captain); Amado Aquinaldo, Ann Cassidy, Christopher Dial, David Ainsworth, Elizabeth Bishop, Jeff LeMay, Jing Huang, Jing Lin, Jordan Barr, Karl Mascarenhas, Lindsay Suter, Margo Angelopoulos, Mo Lee, Nathan Herrero, Nicholas Stoutt, Reuben Herzl, Steve Ybarra, Wael El Dasher, William Douglas Matthew (project team)
Leed Commissioner: Air Balance Hawaii
Geotechnical Consultant: Masa Fujioka & Associates
M/E/P Consultant: Steve Winter Associates
Mechanical Consultant: Southport Engineering Associates
Electrical Consultant: PC Aero-Electric
LEED Consultant: Viridian Energy & Environmental
Civil Engineering Consultant: Wagner Engineering
Structural Engineering Consultant: Schlach Bergermann und Partner
Structural Engineering Consultant: William Blakeney Inc.
Acoustical Consultant: Cavanaugh Tocci Associates
Lighting Consultant: Atelier Ten
Lighting Consultant: Eron Ashley
Cost Estimator Consultant: Rider Hunt Levett & Bailey
General Contractor: Unlimited Construction Services
Size: 20,000 square feet
Cost: $10.5 million

PRODUCT SPECS
Structure

Titan HV formwork
Titan Formwork Systems
titanformwork.com

Concrete
Glover-Honsador
gloverltd.com

Eucon 37 water-reducing admixture
The Euclid Chemical Co.
euclidchemical.com

Building insulation
CertainTeed Corp.
certainteed.com

Vapor barrier
DuPont
tyvek.com

Astro-Foil radiant barrier
Innovative Specialties
innovative-specialties.com

Cold-formed metal framing
Dietrich Metal Framing
dietrichindustries.com

Power actuated fasteners
Simpson Strong-Tie Co.
strongtie.com

Drywall stud
Dietrich Metal Framing
dietrichindustries.com

ProFin Joint Compound All Purpose Compound
CertainTeed Corp.
certainteed.com

Drywall Joint Tape
BPB Marco/CertainTeed Corp.
bpb-na.com

World Mix siding
TerraMai
terramai.com


Roofing

Thoroseal waterproofing membrane
BASF
basf.com

Roofing insulation and adhesive ACFoam-II
Atlas Roofing Corp.
atlasroofing.com

TPO thermoplastic roofing membrane
Burke Industries
burkeind.com

Solar cell power conditioning system
Satcon Technology Corp.
satcon.com

PowerGate Plus photovoltaic system inverter
Satcon Technology Corp.
satcon.com


Coatings

Edoco Aqua Resin Cure
Dayton Superior
edoco.com

Vulkem 45 SSL sealant
Tremco
tremco.com

Lithochrome Chemstain Classic concrete floor stain
Scofield Systems
scofiield.com

Pitt-Tech paints
Pittsburgh Paints
pittsburghpaints.com

SealGrip primers/sealers
Pittsburgh Paints
pittsburghpaints.com

Sun-Proof exterior wood stain
Pittsburgh Paints
pittsburghpaints.com


Finishes

Cabinet liner sheets
Wilsonart International
wilsonart.com

Horizontal Forming Grade HGP (HF-4) plastic laminate
Nevamar Decorative Surfaces
nevamar.com

Exotic hardwood lumber in teak
TerraMai
terramai .com

Ceramic tile Debris Series
Fireclay Tile
fireclaytile.com

Keracolor S grout
MAPEI Corp.
mapei.us

Louvers and vents, Model 653XP
JL Industries
jlindustries.com


Flooring

World Mix flooring
TerraMai
terramai.com

Floor mats
Mats Inc.
matsinc.com

In a Snap carpet
Shaw Contract Group
shawcontractgroup.com 


Doors and Windows

Hollow metal steel doors and frames, 707 Series
Curries Co.
curries.com

FireGuard Plus flush wood doors
Eggers Industries
eggersindustries.com

F-Style Door, Euro Top & Bottom Patches
PRL Glass Systems
prlglass.com

SentryGlas Plus exterior glazing
DuPont
dupont.com


Ceilings

Acoustical ceiling panels
Tectum
tectum.com

Acoustical ceiling drywall grid system
Armstrong
armstrong.com


Walls and Surfaces

ProRoc Type X gypsum board
CertainTeed Corp.
certainteed.com

ProRoc interior ceiling gypsum board
CertainTeed Corp.
certainteed.com

ProRoc moisture-resistant gypsum board
CertainTeed Corp.
certainteed.com

Sheetrock Acoustical Sealant
USG Corp.
usg.com

Two-hour-rated gypsum board shaft-wall assemblies
Dietrich Metal Framing
dietrichindustries.com

Cork bulletin board
Claridge Products and Equipment
claridgeproducts.com


Fire Protection

Fire Protection Academy fire extinguisher cabinet
JL Industries
jlindustries.com

Life Safety fire alarm system control panel
GE Security
est.net

Fire alarm system intelligent initiating device
GE Security
est.net

Clean agent extinguishing system
Fenwal Protection Systems
fenwalfire.com

SmartOne intelligent detectors
Fenwal Protection Systems
fenwalfire.com


Vertical Transport

Electric Traction Elevators
Kone Corp.
kone.com


Plumbing and Fixtures

Recessed paper towel dispenser and waste receptacle
Bobrick
bobrick.com

Surface-mounted multiroll toilet tissue dispenser
Bobrick
bobrick.com

Surface-mounted soap dispenser
Bobrick
bobrick .com

Surface-mounted napkin disposal
Bobrick
bobrick .com

Heavy-duty clothes hook with concealed mounting
Bobrick
bobrick.com

Mirror with stainless steel channel frame
Bobrick
bobrick.com

Stainless steel grab bars with snap flange
Bobrick
bobrick.com

Swing-up grab bar
Bobrick
bobrick.com

Walk-in freezer
National Cooler/Hill Phoenix
nationalcooler.com

DropIn Sink
Durcon Laboratory Tops
durcon.com


Systems

Diesel generator set
Cummins Power Generation
cumminspower.com

Close coupled pump
Aurora Pump
aurorapump.com

PVC rigid electrical conduit
PW Eagle
pweagleinc.com


HVAC

Air-cooled scroll chiller
York by Johnson Controls
york.com

Chilled water system
Liebert Corp.
liebert.com

Indoor central station air-handling units with variable speed drive
Trane
trane.com

Blower coil air handler
Trane
trane.com

Uni-flange valve
Griswold Controls
griswoldcontrols.com

Isolator R
Griswold Controls
griswoldcontrols.com

Expansion tank
Elba-Ustek Group
elba-ustek.com

Air-elimination equipment
Amtrol
amtrol.com

Foamglas insulation
Pittsburgh Corning Corp.
pittsburghcorning.com


Lighting and Shading

Dual-technology ceiling mount sensor
Lutron
lutron .com

Calculite compact fluorescent surface cylinder
Lightolier
lightolier.com

Sightlines lighting
Rebelle Architectural Lighting
rebellelighting.com

Site Lightforms
Kim Lighting
kimlighting.com

Mini Forecast series
Forum
forumlighting.com

Energos lighting systems
Lightolier
lightolier.com

Recessed wall washer
H.E. Williams Inc.
hew.com

Nova T lighting controls
Lutron
lutron.com

Horizontal louver blinds
Levolor
levolor.com

Insolroll Sheerweave roller shades
Window Trends
windowtrends.hdwfg.com