To supply sufficient diffused natural light to key sections of a 50,000 square foot supermarket while significantly reducing energy costs.
Wasco Skylights’ Lumira™ Aerogel* Thermal Units – the highest performing daylighting product available on the market today.
From the start, architect Rick Ames of Boston-based Next Phase Studios envisioned the newly opened Augusta Hannaford store, the first LEED® Platinum supermarket in the U.S., as a day lit/low energy building. In order to realize his design, Ames and daylighting consultant Dane Sanders of Clanton & Associates, Inc. in Boulder, employed a number of techniques. A key strategy was the use of (54) 4’x4’ Wasco Lumira™ Aerogel Thermal Units for both general and task lighting and to achieve optimal daylighting conditions in critical areas of the store.
Lumira™ Aerogel Thermal Units are double-paned polycarbonate glazed skylights insulated with a layer of translucent Lumira™ Aerogel, a nanomaterial that is the best insulating solid on the planet and the lightest. Lumira™ Aerogel-enhanced skylights provide a high insulating value and an excellent Solar Heat Gain Coefficient. Up to six times as energy efficient as conventional sklylights, they provide an abundance of glare-free, full spectrum, diffused light which studies show have a positive effect on worker productivity and can boost sales by as much as 40%.
Lumira™ Aerogel Thermal Units are UV stable, reduce sound transmissions by 25–70%; increase acoustic performance and are completely water resistant. They also meet the OSHA standard for skylight fall protection. The prestigious design firm, MBDC, has determined that Lumira™ Aerogel is consistent with the MBDC Cradle to Cradle Design philosophy.
Ames and Sanders chose Lumira™ Aerogel skylights to illuminate service and delivery corridors where they report that on most days there is limited need for artificial light. They also placed an array of the skylights down the center of the store to supply sufficient general lighting and installed others to highlight specific displays. Most of the units were used to light the perimeter areas, which Sanders claims are the most profitable, and where Hannaford displays its own brand products, meat and produce. “The light in these perimeter areas must provide good color rendering,” said Sanders. “That’s essential for fruits, vegetables, meat and seafood. The company prides itself on the freshness of these products and so you want to show them – literally – in their best light.” He also noted that the diffuse quality of the light transmitted by the Lumira™ Aerogel skylights protects these products from harsh sunlight that could speed their deterioration.
Ames is expecting this store to utilize significantly less energy than a typical supermarket of comparable size. “We chose the Lumira™ Aerogel Thermal units because we liked the balance of thermal characteristics and light transmittance,” he said. “You get plenty of diffused light with these skylights and they give you an R-value approaching that of an exterior wall. That’s really an unbeatable combination. We’re extremely pleased with the results and we know our client is as well.”