[Greenbuilding] Insulation Embodied ENergy

[John Straube]

The only info I see at your link shows EPS has 100 MJ/kg of embodied vs 16 for mineral wool and 1 for cellulose.
So I dont see how it depends who you ask…

On Dec 8, 2014, at 9:55 PM, ErgoDesk <ergodesk at gmail.com> wrote:

> Depends on who and how you ask, here are some of my refs. http://www.evernote.com/l/AAL5N-jyW1lP0J92qy-R7MAlck9u9cCR_OQ/
> 
> http://about.me/StyroHome
> 
> 
> On Mon, Dec 8, 2014 at 6:26 PM, Gennaro Brooks-Church - Eco Brooklyn <info at ecobrooklyn.com> wrote:
> Topher you beat me to it. I was going to mention the 700 year old house in Schwyz central Switzerland. Who is talking about OSB? Ergo before you go touting the magic of plastic all I am saying is that you need to take into consideration the massive amounts of embodied energy that EPS has. Have you done those calculations? I would be curious. I did read an authoritative article claiming that retrofitting an old house is definitely better than raising it and building new in terms of energy used (both in construction and life of the building).
> 
> 
> Gennaro Brooks-Church
> Director, Eco Brooklyn Inc.
> Cell: 1 347 244 3016 USA
> www.EcoBrooklyn.com
> 22 2nd St; Brooklyn, NY 11231
> 
> On Mon, Dec 8, 2014 at 7:37 PM, ErgoDesk <ergodesk at gmail.com> wrote:
> Funny dude, you can't build that same 250-year-old house from today's OSB crap, nor can you find a 250 year old house that energy efficient.
> 
> http://about.me/StyroHome
> 
> 
> On Mon, Dec 8, 2014 at 4:33 PM, Topher <topher at greenfret.com> wrote:
> On 12/8/2014 7:20 PM, ErgoDesk wrote:
> > Wood house needs rebuilding every 34 years
> 
> Funny, I audited a 250 year old house just the other day.  Can you point
> me at a 250 year old EPS building.
> 
> The big trouble with EPS is the global warming potential, it requires
> multiplying that embodied energy by roughly 1000.
> 
> Thank You Kindly,
> 
> Topher
> 
> --
> Topher Belknap
> Green Fret Consulting
> Kermit didn't know the half of it...
> http://www.GreenFret.com/
> topher at greenfret.com
> 
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John F Straube
jfstraube at uwaterloo.ca
www.JohnStraube.com