Posts Tagged ‘peabody architects’

Q&A with the David Peabody: Passive House Architect

Thursday, April 7th, 2011

Take a moment to get a glimpse inside the mind of a Passive House Architect.

Have you ever wanted to get the insiders perspective on what makes their project unique and what they find to be the most impressive features? We were lucky enough to snag some time with David Peabody, the lead architect on the Passive House in Bethesda, MD. Here is what he had to say about his beautiful, functional new passive design work.

GreenGobbler: We would love to know from your perspective what the most impressive parts of this home are?

David Peabody: What makes the house on North Chelsea Lane impressive is not just that it will use 10% of the heating and cooling energy of a standard house. Its real impressiveness is in the fact that an architect with a few weeks of training and a good contractor could build it using standard construction materials at a cost increase of less than 10% over standard construction.  The Passive House program makes state of the art methodologies and modeling software accessible for architects and builders. As the costs of energy rise, and as these houses become more common, I believe that this approach will be commonplace within 5 years.

GG: What has been the most challenging in the build process, and what has been the most satisfying for you as the team lead?

DP: The most challenging architectural piece was in development of a completely new set of standard construction details for our houses. Luckily, I only have to do that once for this construction system. The most challenging piece in the construction process was reaching the airtightness requirement. That required careful work on the part of all the subs: concrete, SIP, mechanical, electrical and plumbing. We learned that infrared imaging is indispensable in completing the process. For when we got the house under pressure, it was the IR camera that identified the remaining leaks which needed patching before we got to the .6ACH at 50 Pascale.

GG: Is there anything you would suggest to someone else looking to begin their own passive house project?

DP: Plan everything ahead. Work with people who have done it before and you will be well up on the learning curve.

GG: Why do you think Passive design is just now becoming a player in residential design in the US?

DP: It has only reached mainstream construction in Europe, where it originated, in the last five years or so. And we are a bit behind them. Obstacles have been: it’s foreign; it requires changing the way we do things; the bad reputation of the super-insulated houses of the 70′s. Once people see that these houses can look normal and be built very close to market costs, they will become more common. Rising energy costs will determine the speed of acceptance.

Many thanks to David Peabody for taking the time to discuss his wonderful project. For more information, keep your eyes on our site, and we’ll continue to update you on the progress of this passive home in Bethesda, Maryland.

Passive Home in Bethesda, MD by Peabody Architects

Thursday, March 31st, 2011

Nearly 13 years after building their dream team, Peabody Architects has their aptly named The New American Foursquare Passive House well under way in Bethesda, MD.

With the strong drive and determination to put together a project that is Passive in design and the guidance of a great team including award winning HVAC contractors and Earthcraft Technical advisers,  Alexandria, Virginia based Peabody Architects is on their way to creating the DC Metro area’s first completely passively designed home. From the get-go this project has been done the right way, they put together a team with the dedication to the plan, to create a home which would embody tight construction, comfort, health and utilize building principles which encourage the home to be built as a system.

In a quote from their blog over a year ago, Peabody’s design team mention ” While the house won’t look different from a traditional home, you will clearly feel a difference from the moment you walk inside this house. Passive Houses are exceptionally quiet and comfortable. There is no stratification of air; there are no drafts, there is no feeling being hot or cold when standing next to a window. Consistently in European surveys (where over 20,000 Passive Houses have now been certified), it is the comfort of these houses most remarked upon by their owners.”  This truly defines how this home has been produced; it is a gorgeous space, that is set apart by its efficiency and conscientiousness, not by its outward appearance, which is what some people tend to think when they start to let their minds wander about green, energy efficient or passive homes if they aren’t familiar with the concept.

Passive homes are a German concept which is quickly catching on in the US- and rightly so with the change in our climate and the climbing energy costs; it even suits are needs here in the mid-Atlantic. The Passive House Institute US states that ” Passive Houses are affordable, comfortable homes that meet the most rigorous building energy standard in the world. Far more than a checklist of green building options, Passive House design is a state-of-the-art, systematic approach to super-efficient construction that reduces space heating and cooling loads by an amazing 90%…Passive House standard puts true carbon-neutrality within reach. Today. Ten thousand Passive Houses have already been built in Europe, but this approach to home building has only very recently gained traction here in the U.S. ”

From site location to the actual products used in the homes, Passively designed homes such as the Peabody Architects New American Foursquare out in Bethesda, MD which is comprised of SIPs panels, super high efficiency HVAC system, tight windows, short duct runs and compact plumbing systems need to keep their projects on target from the outset. Peabody’s team was able to do this by organizing their plan from the beginning and understanding this key component: inspection and a system of checks and balances. What is highly important is that throughout the build process- that the whole home is inspected and kept on track by someone like the Conway Construction team  who would be able to help identify any potential issues which could breach the thermal envelope of the home. Since this is a home which is to be built tight and ventilated right, as we like to say, it is imperative that an auditor such as this be able to work with the builder team throughout the process to guide them through the energy efficiency process. As a member of the team The Green Gobbler is the HERS rater -providing energy efficiency guidance, energy modeling and diagnostic testing during the pre-drywall and final portions of the project. We’re all excited to see this first Passively designed home in the DC Metro area and proud to have been a part of this great team put together by the Peabody Architects group.

As the Peabody team brings this project to a close, we will keep you posted on the progress. Keep tabs on this project through our blog and join the discussion on our Facebook page.