Skip to main content

International Passive House Days Tours

International Passive House Days

We will be giving tours during the international passive house days. Check out

http://www.meetup.com/NYPassiveHouse-NYC/events/226524444/

for more information! We hope to see you there!

 The house will be available:

 Friday        11/13/2015 from 4p-7p
 Saturday    11/14/2015 from 10a-6p
 Sunday      11/15/2015 from 10a-5p

We have the 1st deck down and will be starting on the walls this week. Caution - dress warm since we are not weatherized yet!

Comments

Popular posts from this blog

Window Installation

With all of the engineering and design that goes into a house like this, why would window installation be any different? EVERYTHING in a passive house is modeled, examined, and optimized thermodynamically. For now we will be talking about the thermodynamic analysis of the Passive House Windows and how this translates to the positioning of the windows within the wall system. A typical new construction window comes with a nailing flange that is part of the frame of the window. This requires the window to be nailed directly to the wall, resulting in the window being flush with the outer edge of the exterior wall. Passive House windows don't come with the nailing flange, this allows flexibility in location of installation within the wall system. The fact is, in a thick wall (12 inches or more, further details on wall thickness will be addressed in a later post) you typically don't want to install the window on the outside of your wall. You want to install the window in the middle o...

Wall Assembly 1

Double Wall Construction Maybe I am biased to double wall construction because the company I work for Airtight Services  is a cellulose insulation company; but it is still probably the most cost effective way to achieve the R-values necessary for Passive House. Based on our energy model we needed to achieve about an R-54 wall. There were a couple options: 2x6 wall with 6" of polyisocyanurate rigid foam to the outside There are some more difficult window installation details when your window is cantilevered over nothing but foam. Some long screws are need to attached a furring strip over the rigid foam (9" long) and those can add considerable cost to the project - upwards of $0.75 each The labels on rigid foam insulation scared me a little bit too -  15 YEAR LIMITED THERMAL WARRANTY Polyisocyanurate has the WORST embodied energy of the good types of insulation meaning it takes the most amount of energy to make relative to how much it will save This graph was posted on Green Bu...