Marc, today's charrette was terrific. Thank you for your truly generous collaboration. You've caused me to turn a mental corner. Until recently, I thought that that to do really intelligent buildings, we'd need the right clients, the right engineers, and a premium budget. Thanks to you, I now believe that to do intelligent buildings all we need is INTELLIGENCE!—and the guts to ask the simple questions until we get the answers, and the courage of our convictions to persuade others...

We can do this and it will change things. You've empowered us. Thanks. –Ellen

Dartmouth College McLane-Fahey Residence Hall

Architectural design: Atkin Olshin Lawson-Bell  Engineering: Flack & Kurtz

The McLaughlin Cluster and McLane-Fahey residence halls have added 500 new beds to the Dartmouth Campus. Our integrated design services led to a building envelope with a highly effective continuous air barrier and a very well insulated building with minimal thermal bridging. The thermal enclosure consists of a combination of three inches of spray polyurethane foam in the cavity walls combined with rubberized asphaltic membranes at transitions to form a monolithic air barrier. The roof includes a full membrane air barrier over gypsum sheathing above the steel decking, with three layers of rigid polyurethane foam totalling 7-1/2 inches over the membrane.

The heating, ventilation, and cooling system uses PEX tubing cast into a topping slab over the precast concrete plank to deliver radiant heating and cooling through both the ceiling and floor. Ground source heat pumps coupled to two 1400 foot deep wells supply heating and cooling for the radiant system. Dehumidification is handled by the ventilation air, which employs enthalpy recovery and demand control to keep loads down. Drainwater heat recovery is installed on the shower risers to reduce the energy demand on the hot water system.

Dartmouth has been a major client for over a decade. We have helped them set performance metrics and begin to implement LEED; interview and choose engineering consultants; and re-think how they design, construct, and operate buildings. LEED Silver. Occupied 2006.

Reed Bergwall, Dartmouth College Facilities Planning - 603 646-1507