174 Grand St: The windows are installed…

by sam on August 13, 2010

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The Windows arrived!

by sam on July 23, 2010

window-section-horizontal

We opened the container yesterday and unwrapped them…They look great…frameless, triple insulated glass and elegant rectangular wood frames… photos coming next week!

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Exterior Insulation at 174 Grand St

What you see in this photo is the Concrete Masonry Structure with the 8″ thick EPS insulation. Thick walls!

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Hello XXX Pacific Street!

We started working on the design of a new building which is again somewhere on Pacific Street. Again we are using our exterior circulation concept, but this time we are making the attempt to build a Passive House! Above is the first exterior sketch. More to follow…

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Teaser: modern windows for our Passive House

While we won’t disclose yet where we found them, as the deal is not completely worked out, we can’t resist to show off the stylish windows we found. And to make it even more interesting please look at the performance data for a casement window (test size ~48″ x 58″):

Uglass = 0.6 W/(m2K) or an [...]

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Passive House detail at 174 Grand St

What looks a bit like a racing stripe running horizontally around the top of the building is actually not decorative; instead it addresses a problem that we, and i guess many others, completely overlooked: a C.M.U. parapet wall is a massive thermal bridge!
What normally happens: The structure of the building is constructed of concrete, and [...]

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Wolfgang Feist dispels myths about Passive Housing:

(Wolfgang Feist is the founder of the german “Passiv Haus” Institute)

1. You can’t open the windows in a passive house (PH).
On the recommendation of the PHI (Passive House Institute) every passive house has windows which can be opened. The technical house ventilation system brings fresh air in, so you won’t ever find any stale air [...]

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Update on 174 Grand St…

After weeks of figuring out thermal bridge problems, thinking about how to address the existing buildings next door, doing solar gain studies, and recalculating the PHPP modeling in metric, we also updated the exterior of the building… all this while the contractors completed the CMU structure…. please see the our website for more

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Solar Gain at 174 Grand St

While a passive solar gain is not required in a Passive House, it has substantial impact on the envelope of the house. Better sun exposure let’s us use a bit less insulation and more affordable windows. As this project is located in an urban area we trying right now to calculate how much help we can expect [...]

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Good US Passive House window news!

We think this deserves it’s own post rather than an update. After our tedious attempts getting the right U-value data from US based SeriousWindows to be able to use their windows in our PHPP calculations about a month ago i just stumbled across the updated data on their website. And it’s all there: Different window frame and [...]

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