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ray lunder
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 Posted: Wed Aug 29, 2007 4:05 pm Post subject: Building an icebox: Blueboard or Pink stuff? |
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Ahoy, I'm building a top loader icebox in an existing space under the
settee. I can get rigid pink building trade insulation fairly cheaply
and it's local. It's rated R5 per inch. I would have to order/source
take a ferry, drive etc to get blueboard or the stuff that costs $100+
per sheet. Is it that big a deal?
I was going to caulk the inside plywood corners, use a squirt of that
spray foam from the hardware store to fill the imperfectly cut
rectangles of rigid foam. I thought 2 layers of one inch would be the
best compromise between R value and interior space.
I haven't thought out how to finish the inside so it holds water from
the melted ice or how to drain it. Anybody experiences for the DIYer
on a budget? Ok, the spell checker is complete, I had four mistakes,..
Thanks as always. |
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RW Salnick
Guest
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| Posted: Wed Aug 29, 2007 7:26 pm Post subject: Re: Building an icebox: Blueboard or Pink stuff? |
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ray lunder brought forth on stone tablets:
| Quote: | Ahoy, I'm building a top loader icebox in an existing space under the
settee. I can get rigid pink building trade insulation fairly cheaply
and it's local. It's rated R5 per inch. I would have to order/source
take a ferry, drive etc to get blueboard or the stuff that costs $100+
per sheet. Is it that big a deal?
I was going to caulk the inside plywood corners, use a squirt of that
spray foam from the hardware store to fill the imperfectly cut
rectangles of rigid foam. I thought 2 layers of one inch would be the
best compromise between R value and interior space.
I haven't thought out how to finish the inside so it holds water from
the melted ice or how to drain it. Anybody experiences for the DIYer
on a budget? Ok, the spell checker is complete, I had four mistakes,..
Thanks as always.
|
That sounds pretty similar to what I did, except I made mine 4" thick.
I used the blue board, because that was what was available. I believe
that both the pink and the blue are extruded polystyrene foam, and are
more or less proof against waterlogging.
For the interior surface, I used some plastic sheeting designed to be
used as a wall covering? in a bathroom... I got it at Home Depot - it
has a slight pebble texture on one surface, and kind of a rough-sanded
appearance on the other. It is maybe 3/32" thick. I cut pieces to fit
the inside, and caulked the corners with 5200. That was 8 years ago,
and it still looks great and is leak free.
BTW, the "experts" advise against a drain, but then what do you do about
the melting frost on the holding plate? I installed a drain (used a
plastic thru hull), and put a trap on it so the cold air can't drain
out. Then I used some of those 12" square snap-together perforated
gridding that West Marine sells to keep the food out of the thin film of
moisture that the raised edge of the thru hull drain traps on the bottom.
bob
s/v Eolian
Seattle |
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Guest
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| Posted: Thu Aug 30, 2007 8:21 pm Post subject: Re: Building an icebox: Blueboard or Pink stuff? |
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Right. The Pink Stuff and The Blue Stuff are 'extruded' polystyrene
which is good, the white stuff is 'expanded' polystyrene whhich should
probably be avoided.
Glacier Bay has soom good info on box insulation, construction, etc
here:
http://www.glacierbay.com/Instresult.asp
MW |
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ray lunder
Guest
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| Posted: Fri Aug 31, 2007 12:49 am Post subject: Re: Building an icebox: Blueboard or Pink stuff? |
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On Wed, 29 Aug 2007 07:26:25 -0700, RW Salnick <salnick@no.spam.org>
wrote:
| Quote: | ray lunder brought forth on stone tablets:
Ahoy, I'm building a top loader icebox in an existing space under the
settee. I can get rigid pink building trade insulation fairly cheaply
and it's local. It's rated R5 per inch. I would have to order/source
take a ferry, drive etc to get blueboard or the stuff that costs $100+
per sheet. Is it that big a deal?
I was going to caulk the inside plywood corners, use a squirt of that
spray foam from the hardware store to fill the imperfectly cut
rectangles of rigid foam. I thought 2 layers of one inch would be the
best compromise between R value and interior space.
I haven't thought out how to finish the inside so it holds water from
the melted ice or how to drain it. Anybody experiences for the DIYer
on a budget? Ok, the spell checker is complete, I had four mistakes,..
Thanks as always.
That sounds pretty similar to what I did, except I made mine 4" thick.
I used the blue board, because that was what was available. I believe
that both the pink and the blue are extruded polystyrene foam, and are
more or less proof against waterlogging.
For the interior surface, I used some plastic sheeting designed to be
used as a wall covering? in a bathroom... I got it at Home Depot - it
has a slight pebble texture on one surface, and kind of a rough-sanded
appearance on the other. It is maybe 3/32" thick. I cut pieces to fit
the inside, and caulked the corners with 5200. That was 8 years ago,
and it still looks great and is leak free.
BTW, the "experts" advise against a drain, but then what do you do about
the melting frost on the holding plate? I installed a drain (used a
plastic thru hull), and put a trap on it so the cold air can't drain
out. Then I used some of those 12" square snap-together perforated
gridding that West Marine sells to keep the food out of the thin film of
moisture that the raised edge of the thru hull drain traps on the bottom.
bob
s/v Eolian
Seattle
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That's sound fairly practical for me. I should have mentioned it's
just an icebox- like with melting gallons of water in it. I don't
think I could support the amp hour usage and expense of those sexy
mini sized, maxi efficient compressors on a tiny boat so I definitely
need a drain.
Thanks for the tips. |
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