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 Blair Towns
| 开发商: |
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容积率: |
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| 地址: |
Silver Spring, MD |
建筑面积: |
9,970 sq. meters |
| 竣工日期: |
August 2003 |
高度: |
3 4-story buildings |
| 能源利用: |
The Blair Towns employ a number of strategies to save 21% of base building energy use compared with an ASHRAE 90.1-1999 reference building (or up to 35% when fully factoring in energy savings from infiltration reduction). Non-regulated loads (appliances and unit lighting) are not included in this calculation. An owner-initiated study found that a 34% energy savings avoids the annual emission of 313,705.47 pounds of carbon dioxide, which is equivalent to taking 26 cars off the road annually. It would take 43 acres or .07 square miles of forest to absorb this much carbon dioxide.
Green Strategies
Wall Insulation
Minimize wall area through proper building massing
Achieve a whole-wall R-value of 15 or greater
Solar Cooling Loads
Orient the building properly
Hot Water Loads
Use water-efficient dishwashers
Use water-efficient showerheads
Use water-efficient faucets
Water Heaters
Use a combined furnace/water heater to heat water
Cooling Systems
Use AC systems with a high efficiency rating
Commission the HVAC system
Light Sources
Specify Energy Star-rated lighting equipment
High-performance Windows and Doors
Select insulated doors for optimal thermal performance
Optimize energy performance of glazing systems
Heating Systems
Keep heating equipment in conditioned space
Air Infiltration
Seal all penetrations through the building envelope
HVAC Distribution Systems
Seal ducts
HVAC Controls and Zoning
Use occupancy-based conditioning controls
Use small packaged equipment for multiple zones
Other Energy-Efficient Appliances
Use high-efficiency clothes washers
Use Energy Star dishwashers
Roof Insulation
Achieve a whole-roof R-value greater than R-35 |
| 选址和节水方案: |
The Blair Towns use 40% recycled-content materials, over 60% locally manufactured materials, and over 10% locally harvested, extracted, or recovered materials, calculated by materials cost, excluding equipment and labor. This combination of measures conserves both material and related resources normally used in manufacturing and transportation. The Blair Towns took advantage of its location in the Washington D.C. area, which is well-positioned to source products manufactured and originating within a 500-mile radius.
Green Strategies
Protection of Global Ecosystem
Minimize ozone-depletion potential of refrigerants in cooling systems
Design for Materials Use Reduction
Use advanced framing (optimum value engineering) to optimize material use
Plan for Materials Longevity
Minimize dependence on sealants by good detailing of building skin
Recycling by Occupants
Specify recycling receptacles that are accessible to the occupants
Resource-Efficient and Biobased Materials
Use trusses for roofs and floors
Use engineered wood products for rough carpentry
Post-Consumer Recycled Materials
Use recycled-plastic wheel stops and speed bumps
Specify carpet made with recycled-content face fiber
Pre-Consumer Recycled Materials
Use gypsum board made with higher percentages of synthetic gypsum
Transportation of Materials
Prefer materials that are sourced and manufactured within the local area |
| 室内环境品质: |
Green Strategies
Development Impacts
Limit parking area
Water Conservation Education
Educate residents about water conservation
Water-Efficient Appliances
Specify horizontal-axis washing machine
Specify low-water-use residential dishwasher
Low-Water-Use Fixtures
Retrofit faucet aerators or flow-regulators onto lavatory sinks
Install showerheads using less than 2.2 gallons per minute
Managing Stormwater
Incorporate a pollutant separation/filtering system in parking lot drains
Construction Impacts
Minimize soil erosion from construction activities
Demand for Irrigation
Select plants for drought tolerance
Low-Impact Siting
Select an already-developed portion of a site for new development
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| 材料选择: |
The owner hired an indoor air quality expert to perform tracer gas testing of a sampling of unit-to-common-space conditions. Daylighting and views are amply provided by the unit layouts, window sizes, and visible light transmittance. Permanent floor grates are included at building entries to minimize the amount of particulate matter that tracks into the indoor space on people’s shoes. Ceiling fans in bedrooms improve ventilation while reducing energy costs.
Green Strategies
Entry of Pollutants
Design entry to facilitate removal of dirt before entering building
Visual Comfort and The Building Envelope
Choose interior and exterior glazing to maximize daylight transmission
Visual Comfort and Interior Design
Select only white to midrange finishes to maximize reflectance of light
Visual Comfort and Light Sources
Use electronic ballasts with fluorescent lighting
Ventilation and Filtration Systems
Provide occupants with access to operable windows
Above Grade Humidity and Condensation
Design building envelope to avoid thermal bridging
Elimination of Indoor Pollutants
Use only non-solvent-based adhesives
Reduction of Indoor Pollutants
Use only very low or no-VOC paints
Ventilation During Construction
Provide temporary filters on any permanent air-handling devices used during construction
Building Commissioning for IEQ
Use a comprehensive commissioning process to ensure that design intent is realized
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| 设计创新: |
The new Blair Towns at the Blairs represent a "Smart Growth" approach to multi-family development. This 78-unit apartment community, comprising one 4-story building and two 3-story buildings, was built on a surface parking lot located on a portion of the Blair property, a mixed-use urban site in downtown Silver Spring, Maryland with existing apartment buildings, shops, and a variety of parking facilities. The Blair Towns apartments offer the added value of variety in unit types and high-end interiors. |
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