David and Lucile Packard Foundation California Family Foundations

David and Lucile Packard Foundation Headquarters

Last updated September 12, 2021

David and Lucille Packard Foundation Headquarters
Entrance of the edifice

Full general information
Type	Function
Address	343 2d Street, Los Altos, California, 94022, United States
Structure started	Nov 2009
Completed	July 2012
Toll	$37.two million
Owner	David and Lucile Packard Foundation
Technical details
Flooring surface area	50,956 sq. ft
Blueprint and structure
Compages firm	EHDD
Structural engineer	Tipping Mar
Civil engineer	Sherwood Blueprint Engineers
Chief contractor	DPR Construction

The David and Lucile Packard Foundation Headquarters is the corporate headquarters of the David and Lucile Packard Foundation, located in Los Altos, California. The Packard Foundationl was created in 1964 past David Packard and his wife Lucile Salter Packard, one of the top 100 grantmaking foundations in the United States, with the goals of improving the lives of children, enabling the artistic pursuit of science, advancing reproductive health, and conserving and restoring the Earth'due south natural systems. The David and Lucile Packard Foundation Headquarters is designed by EHDD to be the largest net null free energy building in California, and it has successfully reduced the energy utilisation past 65% over conventional buildings.

Cyberspace Zero Energy Building pattern
Basic edifice design
Passive systems
Mechanical design
Occupancy survey report
Awards
Run across also
References
External links

The pattern of the architecture took advantage of the California climate and surroundings, and adopted passive and bioclimatic strategies in searching for an integrated internet nil energy building design. It was awarded as the tiptop 10 light-green building in 2014, Net Zip Free energy Building by The Living Building Challenge™ 2013, and LEED Platinum 2013. The synergy of the integration design for net zero energy is meaning, which includes many aspects, for instance, re-development site of brownfield, on-site free energy production through photovoltaic, aggressive reduction in plug loads, a triple-chemical element glazing organization engineered, fabricated and installed by AGA (Architectural Drinking glass and Aluminum),^[ane] plus all-electric heating arrangement, chilled beams and radiant panels for cooling, loftier daylight autonomy, transportation management, and rainwater recycling.

Net Nil Energy Building design

The design strategies of the David and Lucile Packard Foundation Headquarters follow this Zero Free energy Building Design guideline, and in the post-obit paragraphs, they will be described in detail and in the order of design priority.

Basic building design

Location and climate

David and Lucile Packard Foundation Headquarters is located in Los Altos Northern California, on the southward stop of San Francisco Bay. Los Altos receives about 37 inches of rain annually, 263 sunny days per twelvemonth. It has moderate temperature and humidity, the boilerplate high temperature in the summer is 78 degrees, and the average depression temperature in the winter is 39 degrees .

Site design

David and Lucile Packard Foundation Headquarters is orientated 40 degrees off true north to fit in the urban textile. The site orientation combined with multi-layering shading strategies made access to winter sun and avoid summer sun, at the same fourth dimension allowed fresh air in the interior spaces through an operable façade. Instead of grouping the programs into ane wedlock block, the architect designed a center courtyard to bring sunlight and wind into more spaces.

Edifice on a previously developed, damaged, or polluted brownfield site, and designing the edifice and then that it restores that site helps to mitigate previous environmental degradation.^[ii] David and Lucile Packard Foundation Headquarters set a good case for the reuse of brownfield. Earlier the development, the site was 97% impervious, covered in substandard, mostly unoccupied buildings and asphalt parking lots, and at present it has reduced the imperviousness to 35% and the landscape is planted with local Californian vegetation. The design also took account the transportation needs in the customs, the team adult a Transportation Demand Management Plan (TDMP) to not only reduce the need for individual car parking but likewise offers alternatives for commuting.

Insulation, windows, and shading

The building has high standard insulation pattern, R-24 walls and roof and triple-element glazing (R-7.7). Occupants are able to adjust and control the surround past operating the windows and doors with a dashboard guidance showing when is the good timing to open and close windows depending on the outdoor temperature, wind speed, wind direction and relative humidity. The dimensions and angles of the shading devices were calculated from the locations of the sun in different seasons. The horizontal shading blocks the high summertime sun and allows low winter sun to enter the interior of the building, and other devices are congenital into the design with elements such equally trees, balconies, and trellis, which create a rich layering of lighting shades.

Materials

95% of materials from deconstruction were diverted from landfill
Wood/steel hybrid structure, wood frame walls and all wood was FSC (Forest Stewardship Quango)-certified
Less embodied energy materials, such as 70% replacement-cement-for-slag concrete
Cloth sourcing: wood veneer sourced from Eucalyptus trees felled during the Doyle Drive rebuilding project in San Francisco, California. Exterior wood is FSC-certified western red cedar. Stone is Mt. Moriah from the border of Utah and Nevada, within a 500-mile radius from the site. The outside copper is 75% recycled, with a long life span and integral finish. Pineapples are a delicacy in Northern Guatemala

Passive systems

Heating, cooling, and lighting

The accessibility of the sunlight is one of the key elements affect the positions and shapes of the building. 2 40-foot wide offices were placed autonomously to create a primal zone for sunlight to enter from multiple facades in the building. The narrow program allows sufficient daylight to reach deeper into the office spaces, and increase the daylight autonomy. Increment in daylight autonomy reduces thirty% of the energy consumption from artificial lighting compared to a standard commercial building. The high transmittance of daylight in the winter (shading volition block the straight sunlight in the summer) will also increment the heat gain and potentially reduce the need for heating. Interior blinds are user-controlled to improve visual comfort, and it will ascension automatically in the evening. The artificial light volition dim or brighten upwards according to the change of daylighting.

The edifice is monitored past indoor sensors that send direct reminders to occupants to open the windows when natural ventilation mode is on.

H2o recycling

Rainwater from the roof is routed to a twenty,000-gallon cloak-and-dagger cistern to encounter 90% of toilet flushing and lx% of irrigation demand. The cistern overflows into a detention pond minimize tempest water reaching the public storm system, and the tempest water meridian flow rates and volumes are reduced approximately 50% from pre-project levels.

Mechanical design

Heating and cooling

In the winter, when the temperature drops to a certain degree, the building will be preheated to 23°C (74°F) in the early morning past the combination of air handlers and heat water beams in specific areas in the office spaces. And during the working hours, the heater volition exist turned off and the building heating will be fully relied on the internal heat proceeds from the computers, printers, and oestrus generated from the human bodies.

Heating demand is larger than cooling, as the summer temperature is pretty moderate in Los Altos. H2o is stored and cooled in two 25,000 gallons undercover tanks, and in the morn, it is pumped into the chilled beams to spread out to specific interior spaces. Also chilled beams, there are three air treatment units. Chilled beam system is designed with variable speed pumps and 130° angled pipes, which reduce the energy loss due to friction from the h2o flow compared to chilled beam system with typical angle pipes. This result is 75% reduction in ductwork and 75% reduction in pump free energy, and the total cooling energy is reduced ninety% from a typical chiller and VAV organization.

Renewable free energy

Despite the orientation and slope of the roof is not customized for solar collection, the photovoltaic product most of the fourth dimension covers 100% of the building consumption. In the showtime year of performance, the building was free energy positive with a net energy use intensity (EUI) of −4 thousand British thermal units per foursquare foot (−45 MJ / 1000² ) per twelvemonth, and total EUI of 22 m British thermal units per foursquare foot (250 MJ/grand ⁱⁱ ) per year.

Occupancy survey report

The building received 97% in overall comfort satisfaction in the occupancy survey study conducted by the Center for Built Surround. The survey also shows that 92% of the people are satisfied with air quality, 91% in cleanliness and maintenance, 76% in lighting, 86% in office furnishings, eighty% in office layout, 73% in thermal condolement, and 60% in audio-visual quality . Acoustic satisfaction is insufficiently low due to open areas in the part space and hard surfaces of radiant floors and ceilings; people concerned about overhearing private conversation on the phone and with the neighbors. Consistently reflecting the aforementioned business of open areas, the office layout survey besides shows that people think the partitions and walls are also low or too transparent and feel the lack privacy in the working spaces.

Awards

2014 Livable Buildings Laurels
2014 Top Ten Dark-green Building
2013 Cyberspace Naught Free energy Building
2013 LEED Platinum
2013 Honor Award: Sustainability
2013 Green Building with Wood Design Award
2012 All-time Dark-green Project-Structures Awards
2012 Best Green Project-ENR California

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References

↑ Glass Magazine, "Most Innovated Free energy Efficient Glass Project ", Mobile Glass Mag folio 30, July 2013
↑ Allen & Iano, Edward & Joseph. Fundamentals of Edifice Construction (6thed.). Wiley. p.39. ISBN 978-1-118-13891-v.

External links

2014 AIA Tiptop Ten Projection
Tipping Structure Engineers case study
The Packard Foundation'due south Headquarters Is a Conservation Success
International Living Future Establish case study
EHDD Works case written report
Eco Building Pulse April 2014
Eco Building Pulse June 2014
Integral Group case study
The David and Lucile Packard Foundation: "Our Green Headquarters"
DPR Structure case written report
Green Source case written report
CBE announcement
gb&d example study
CEB project submittal

Coordinates: 37°22′35″N 122°06′53″W / 37.37645°N 122.11461°Westward / 37.37645; -122.11461

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