Weinberg Commons—a three-building, 37-unit apartment complex at the corner of Southern and Benning roads, Southeast—looks pretty much like the low-slung housing projects in DC’s outer precincts. But in the annals of urban environmentalism, the 37 apartments represent an important landmark. Developed by the DC nonprofit Transitional Housing Corporation, the former commercial property, built in the 1960s, has been retrofitted to approach “net-zero energy,” a green-architecture term that to the buildings’ residents means 70 to 90 percent energy savings relative to a typical bill for a two-bedroom apartment in the Washington area.
Weinberg Commons’ unassuming looks can be explained by its relative lack of silicon-chip gadgetry. “We do all this with stuff we can buy at the hardware store,” says Michael Hindle, owner of Passive to Positive, a design consulting firm that’s working on the project. Because the city can’t be rebuilt from scratch, Hindle explains, low-energy retrofits like this one are necessary to put DC on a track to sustainability.
Here’s how Weinberg Commons has gotten so close to net zero.
Illustration by Todd Detwiler.
1. Solar Paneling:Panels on the roof heat water for the building.
2. Smart Venting:As fans send warm air from cooking and showering outside in winter, felt stuffing in the spinning, pie-shaped sections of an “enthalpy wheel” retain the heat. As outdoor air passes through the felt on its way in, less energy is needed to heat it to indoor temperature. In warm weather, the process works in reverse.
3. Better Insulation:The brick exteriors were covered first with recycled fiberglass insulation, then with a membrane that Hindle describes as “Tyvek on steroids.” The original masonry helps soften outdoor temperature swings, conserving heat. With fewer leaks from the outside, says Blaise Rastello, director of affordable housing at Transitional Housing Corporation, indoor air will be cleaner, reducing health risks associated with dirty air.
4. Sun Shades:Irregularly tapered boxes outside the triple-pane windows are oriented to admit or block sunlight, depending on the season—providing heat in winter and tempering it in summer.
This article appears in our August 2015 issue of Washingtonian.
A Southeast DC Housing Project Is Leading the Way on Energy Efficiency
A low-income housing development utilizes special insulation, solar panels, smart venting, and sun shades.
Weinberg Commons—a three-building, 37-unit apartment complex at the corner of Southern and Benning roads, Southeast—looks pretty much like the low-slung housing projects in DC’s outer precincts. But in the annals of urban environmentalism, the 37 apartments represent an important landmark. Developed by the DC nonprofit Transitional Housing Corporation, the former commercial property, built in the 1960s, has been retrofitted to approach “net-zero energy,” a green-architecture term that to the buildings’ residents means 70 to 90 percent energy savings relative to a typical bill for a two-bedroom apartment in the Washington area.
Weinberg Commons’ unassuming looks can be explained by its relative lack of silicon-chip gadgetry. “We do all this with stuff we can buy at the hardware store,” says Michael Hindle, owner of Passive to Positive, a design consulting firm that’s working on the project. Because the city can’t be rebuilt from scratch, Hindle explains, low-energy retrofits like this one are necessary to put DC on a track to sustainability.
Here’s how Weinberg Commons has gotten so close to net zero.
1. Solar Paneling: Panels on the roof heat water for the building.
2. Smart Venting: As fans send warm air from cooking and showering outside in winter, felt stuffing in the spinning, pie-shaped sections of an “enthalpy wheel” retain the heat. As outdoor air passes through the felt on its way in, less energy is needed to heat it to indoor temperature. In warm weather, the process works in reverse.
3. Better Insulation: The brick exteriors were covered first with recycled fiberglass insulation, then with a membrane that Hindle describes as “Tyvek on steroids.” The original masonry helps soften outdoor temperature swings, conserving heat. With fewer leaks from the outside, says Blaise Rastello, director of affordable housing at Transitional Housing Corporation, indoor air will be cleaner, reducing health risks associated with dirty air.
4. Sun Shades: Irregularly tapered boxes outside the triple-pane windows are oriented to admit or block sunlight, depending on the season—providing heat in winter and tempering it in summer.
This article appears in our August 2015 issue of Washingtonian.
Related
Kings Dominion’s Wild New Coaster Takes Flight in Virginia
What’s the Deal With “Republican Makeup”?
DC Might Be Getting a Watergate Museum
DC-Area Universities Are Offering Trump Classes This Fall
More from News & Politics
This Virginian Holds the Record as the World’s Oldest Woman to Play Ice Hockey
Museum Shooting Suspect Confesses, Trump Thinks Autism Is “Artificially Induced,” and Area Golf Course Is in the News
The Army Says It Will Pay for Any Road Damage From DC’s Military Parade
DC Woman Arrested for Allegedly Spitting on Ed Martin
Major DC Performing Arts Org Will Skip Kennedy Center for New Season
Jeanine Pirro Wants Taxpayers to Fund Her Bottled Water
The Latest on the DC Museum Shooting, and Other News for Thursday Morning
MSNBC Host Jonathan Capehart on His Candid New Memoir
Most Popular
Jeanine Pirro Wants Taxpayers to Fund Her Bottled Water
Major DC Performing Arts Org Will Skip Kennedy Center for New Season
31 Things to Do in the DC Area This Week and Weekend
Gordon Ramsay Grossed Out by DC Restaurant on His New Show
What’s the Deal With “Republican Makeup”?