[Greenbuilding] ***SPAM*** Re: ***SPAM*** Re: ***SPAM*** Re: Remodeling concerns

[Norbert Senf]

Check out Owens Corning Foamglas:

https://www.foamglas.com/en-gb/products/fgbt3boards

[image: image.png]

On Tue, Feb 20, 2024 at 12:35 PM Beatrice Dohrn via Greenbuilding <
greenbuilding at lists.bioenergylists.org> wrote:

>
>
>
> ---------- Forwarded message ----------
> From: Beatrice Dohrn <beatricedohrn at yahoo.com>
> To: Green Building <greenbuilding at lists.bioenergylists.org>
> Cc:
> Bcc:
> Date: Tue, 20 Feb 2024 17:29:24 +0000 (UTC)
> Subject: ***SPAM***  Re: [Greenbuilding] ***SPAM***  Re:  Remodeling
> concerns
> I also am facing a very labor intensive repair this spring of a low slope
> roof insulated with Polyiso, an EPDM membrane over top and sleepers and a
> deck over that.  Seems that insects have chewed enough tunnels to
> compromise the integrity of it all.
>
> Suggestions for replacement?  Is there rockwool that can be structural at
> about 7"?  I haven't started research.  The un-install and re-install will
> be a nightmare and I won't completely know what it going on until I open it
> all up. I am in Western Oregon (Eugene) and I ain't opening it until the
> rains leave....
>
>
> Beatrice Dohrn
>
>
>
> On Sunday, February 18, 2024 at 10:39:57 AM PST, Mike O'Brien <
> obrien at hevanet.com> wrote:
>
>
> Hi, Ben—
>
> Our house plans specified closed-cell foam in our roof, but without
> asking, our general contractor installed open cell foam. Now, 16 years
> later, there is rot in the roof sheathing and a very expensive repair job
> ahead. So I would caution against ever specifying either foam, as a mistake
> can be catastrophic years later.
>
> Best, Mike O’Brien
> Sent from my iPhone
>
> On Feb 18, 2024, at 8:13 AM, Benjamin Pratt <benjamin.g.pratt at gmail.com>
> wrote:
>
> 
> Hi. I've been on this forum for many years, but I am not an architect or
> qualified expert.  I came across this article today and had some concerns
> about this project.
> 1. By air source heat pump, I assume they mean mini-split(s). I did some
> calculations rencenty and found that electricity is about 9 times more
> expensive per therm than gas. Combining with the very cold temperatures we
> typically get, I imagine The bill will be higher than if they had a gas
> boiler. Also, they now have to deal with uneven temperatures throughout the
> house and leaving doors open to all the rooms they want heated.  What do
> you think?
> 2. I have read about dangers of using spray foam in an old
> house--especially the potential for rot.  What do you think?
>
> This article reads as an advertisement for doing this sort of remodel
> without mentioning any of the potential downsides.  I'd love to hear your
> thoughts.
>
> https://www.mprnews.org/story/2024/02/18/renovating-old-1909-st-paul-house-into-all-electric-green-home
>
> Ben Pratt
>
> --
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>
> ---------- Forwarded message ----------
> From: Beatrice Dohrn via Greenbuilding <
> greenbuilding at lists.bioenergylists.org>
> To: Green Building <greenbuilding at lists.bioenergylists.org>
> Cc: Beatrice Dohrn <beatricedohrn at yahoo.com>
> Bcc:
> Date: Tue, 20 Feb 2024 17:29:24 +0000 (UTC)
> Subject: [Greenbuilding] ***SPAM*** Re: ***SPAM*** Re: Remodeling concerns
> _______________________________________________
> Greenbuilding mailing list
> to Send a Message to the list, use the email address
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>
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-- 
Norbert Senf
Masonry Stove Builders
25 Brouse Road, RR 5
Shawville Québec J0X 2Y0
819.647.5092
www.heatkit.com
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