Agenda - 11-19-2009 - 2 - Laserfiche WebLink

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28 ,. III Location: Chapel Hill, N.C. Size: 24,000 square feet Completed: June 2009 Owner: Orange County, N.C. .. r ....... ..................... _................................... ,..._...... -. Architect: Dixon Weinstein Friedlein Architects (www.dwf-arccom) .............................................. ................................... Consulting Architect: Animal Arts Landscape Architect Swanson and Associates Structural Engineer: Stewart Engineering ..................................................................... ............ Mechanical, Elechical & Plumbing Engineer. Spring Stoops McCullen Engineering Civil Engineer: Civil Consultants ................................. ................................................ Contractor. Clanty &Theys !~ Featured Products -. Paainwater collection: 12,000 gallon precast cona'ete astems -Stay-Right Precast COrlCretP, Inc. (wtivw stayrightmm) Roof water filters`. Medium capadry vortex rainwater fine filter - lay R Smith Mfg. Co. (www.jr;mith.com) High-reflectance single-ply roofing: Carlisle Syn-Fec Sure-Weld white 7P0 roof membrane - Carlisle SynTec (www.car]isle-synteccom) High-reflectance metal roofing: McElroy Metal R-Panel -McElroy Me[a] Inc (www,mcelroymetaLcom) Glazing: PPG Sungate 500 Low-E Glass -PPG Industries (ww•w.ppgideascapes.com) - .Air handling units AAON rooftop units with energy recovery-AAON (www.aaon_com) -Porous paving; Grasspave2 -Invisible Structures„ Inc. (www.invi siblestructures,com) fabric ducts: Air Sox slot diffuser ducts - Euro Air A/S (www.airsoxcom) Concrete block insulation: Core-Fill 500 -Tailored Chemical pioduets, Inc (www.COre-fillS00.com) render it safe for use and then onto hose reels scattered throughout the facility. Incase of emergency, the entire system is served by a city-water backup. Under normal operation, the building requires no city water to meet the demand for its twice-daily run cleanings.This will result in tremendous monthly savings for the facility while greatly diminishing its environmental impact. Conditioning Disease prevention is always at the forefront of concerns for animal shelters. Illness can quickly spread from a single animal to the entire shelter population. As a result, shelter ventila- tion requirements are extraordinarily high - as many as 20 air changes per hour is not unusual. Conditioning this volume of air consumes a great deal of energy. The Animal Services Center addresses this issue in multiple ways. First, the facility is divided into TO condition- ingzones that are fed by separate mechanical units. This strategy allowed the mechanical engineers to optimize energy usage based on the ventilation requirements of each zone. It will also allow sections of the facility to be iso- latedand less-extensively conditioned during periods of low animal census. During normal operations, energy recovery units installed on the mechanical units ef- ficiently recover much of the energy that might otherwise be exhausted to the exterior. This technology manages to achieve these savings while minimizing the risk of recircula- tion of airborne diseases. High air-circulation rates have the additional benefit of reducing odor in the building, which is often an issue in animal shelters. Taking the Lead The shelter extends its usefulness by al- lowing for community groups to use it as an evening and weekend gathering space. A large multipurpose room at the front of the building, clad in red siding reminiscent of the agricultural buildings in the sur- roundingareas, can be isolated from the remainder of the building and used for lectures, classes or meetings. A large roof overhang allows these events to overflow to the outside during warmer months. By doubling as a gathering space, the shelter increases its value to the community by making a useful destination from a building type that is often shamefully hidden from pub- lic view.Thehope is that increased recognition and visibility of the facility will increase traffic for the shelter's adoption programs. Natural Behaviors The Animal Services Center building ben- efits from a number of other green build- ing strategies: high-reflectance metal and single-ply membrane roofs keep roof heat gains Iow.The walls and roof surfaces of the facility are highly insulated to control temperatures within the building. Oper- ablewindows in the office areas increase occupant comfort and permit control of the working environment. Extremely durable materials will keep the facility in use for de- cades before renovations are required.On- site stormwater detention and bio-filtration ponds minimize the impact of the building on the site. And drought-tolerant landscap- ing assures that the site will remain green year-round with minimal irrigation. The Orange County Animal Services Center successfully incorporates multiple green build- ing strategies with excellent design and strict end-user requirements for animal welfare and disease prevention. Rather than treating the construction of their new animal shelter as an unsavory necessity, Orange County used is it as an opportunity to showcase innovative green building strategies and expand the facil- ity'susefulness inthe community. 11M COMPiON,AIA, LEED AP, AND REID HIGHLEY, AIA, LEED AP, ARE AR- CHITECTSWITH DIXON WEINSTEIN FRIEDLEINARCHITECTS, A CARRBORO, N.C: FIRM THAT HAS INCORPORATED SUSTAINABLE DESIGN PRACTICES IN A VARIETY OF BUILDING TYPES FOR MORE THAN 2S YEARS. YISIT WWW. DWF-ARCCOM. f www.EDCmag.com 57D NINETY PERCENT OFTHE SHELTER'S ANIMAL POPULATION RECEIVES NATURAL DAYLIGHT. PHOTO ®1AME5 WEST/1WEST PRODUCTIONS LLC.