Replies

1. GBA Editor
   Martin Holladay | Feb 08, 2011 01:39pm | #1

   Thanks, Jesse.

2. 
   homedesign | Feb 17, 2011 01:47pm | #2

   Has anyone had success viewing Thorsten Chlupp's presentation?
   I have tried several times and it always freezes before fully downloading

   I have had no trouble opening the other presentations
   It seems to be a ginourmous file ... hmmm

3. GBA Editor
   Martin Holladay | Feb 17, 2011 02:54pm | #3

   John,
   I just managed to download it. It's a big file. I suggest you click the link -- open it in a separate window -- and just let the thing load for half an hour while you ignore it and do something else.

4. 
   Jesse Thompson | Feb 17, 2011 03:28pm | #4

   John, I pulled it down, but it's 290 MB.

5. 
   homedesign | Feb 17, 2011 04:21pm | #5

   Thanks Martin & Jesse,
   I updated my adobe reader and the big ole file finally loaded.

   The "Sunrise Home" is very interesting

   
6. 
   Dayton | Feb 18, 2011 12:07am | #6

   Excuse my ignorance, but I am looking at Thorsten Chlupps presentation concerning windows, and I am wondering what Psi-install means (page 61 of his presentation, position of windows in wall)?
   Anyone know?
   Thanks.

7. 
   Mike Eliason | Feb 18, 2011 02:32am | #7

   david,

   psi install is the window's installed linear thermal bridging coefficient, which is entered into PHPP. basically the thermal transmittance along the perimeter of the window frame where it meets the wall. several factors affect psi install, including location of the window within the wall, overinsulating the frame, etc. PH windows with high psi install values can negatively affect the overall U-value of the window assembly quite significantly.

   aecb has a presentation worth looking over (pdf) http://www.aecb.net/PDFs/conference08/AECB%2020window%2020seminar%20209-6-08%5B1%5D_PDF2.pdf

   bronwyn barry also has a few presentations floating around the web worth checking out:
   http://www.slideshare.net/Bronwynb/sills-thresholds-passive-house-installation-details-that-boost-performance

   her presentation from the 2010 PH conference in pdx, 'window porn for PH':
   http://www.passivehouse.us/passiveHouse/2010_Passive_House_Conference_Presentations,_November_5_files/2010%20Conference-Windows%20Roundtable-Bronwyn%20Barry.pdf

   bronwyn seems to conclude (i wasn't able to stick around for the conference, so i'm basing this off her last few slides) that PH designers in the US should use glass with an SHGC of 0.6 - which is what i've been preaching for the last six months. combined with a compact and efficient plan, it's how PH designers can get away from the absurd amounts of insulation certain projects have required to meet the standard.

8. 
   Dayton | Feb 19, 2011 04:28pm | #8

   OK, thanks, your response and Bronwyns slides clear it up. Interesting to me as we are planning an retrofitting exterior insulation to our house in a year or two, and I have been considering the best way to do the windows.