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Old 01-04-2010, 08:21 PM   #1
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Re: Questions about "green" insulation for bus

I have heard of shredded used blue jeans turned into recycled insulation. But I don't think anything currently available will insulate as well as spray foam. My justification to use spray foam would be that if I use 1/4 the energy to heat or cool a space, I am continually saving money and the planet. This would continue over the entire life of the space. I think that would be "greener" compared to using a lesser insulation and constantly pouring more energy into the space later to maintain creature comforts. The kicker to environmentalism is that man must (currently) use petro-chemicals to make the lightweight plastics and super insulations that will let him use less of them as combustion fuels.
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Old 01-04-2010, 10:55 PM   #2
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Re: Questions about "green" insulation for bus

Here's some info on soy-based spray foam insulation (SFI)....

http://www.biobased.net/news/index.php
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Old 01-05-2010, 08:50 AM   #3
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Re: Questions about "green" insulation for bus

Quote:
Originally Posted by Redbear
I have heard of shredded used blue jeans turned into recycled insulation. But I don't think anything currently available will insulate as well as spray foam. My justification to use spray foam would be that if I use 1/4 the energy to heat or cool a space, I am continually saving money and the planet. This would continue over the entire life of the space. I think that would be "greener" compared to using a lesser insulation and constantly pouring more energy into the space later to maintain creature comforts. The kicker to environmentalism is that man must (currently) use petro-chemicals to make the lightweight plastics and super insulations that will let him use less of them as combustion fuels.

Excellent point! Being green isnt necessarily a single factor, but rather a total of many factors. If some of those factors are "brown", yet the overall effect is "green", so be it. I like the sounds of the soy based foam if its performance is on par with other foams.
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Old 01-06-2010, 11:41 AM   #4
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Re: Questions about "green" insulation for bus

Such a tough topic. Last year of reading up on green alternatives hasn't led me to any decisions so far.
One thing to consider is how oftne you would have to replace the insulation. As I understand it, blue jeans and most spray foam will settle in a house, leaving some gaps here and there. Imagine what that would do in a moving bus.
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Old 01-08-2010, 09:28 PM   #5
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Re: Questions about "green" insulation for bus

Thats why alot of the spray insulations uses a glue to try and hold it into place, but it still tends to collapse over time. I vaguely remember hearing that they arn't good for any situation where there are vibrations as it will cause them to settle faster, glued or not...But I could be wrong.
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Old 01-09-2010, 07:13 PM   #6
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Re: Questions about "green" insulation for bus

Quote:
Originally Posted by Smitty
Quote:
Originally Posted by KarlW
I am trying to do a bus that is all "green" or eco-friendly or whatever you want to call it.
I mean it's not like it's ground-up puppies & kitties.

Smitty
does that work? I would gladly grind up a few kitties if they made for good insulation! lol
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Old 01-09-2010, 10:49 PM   #7
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Re: Questions about "green" insulation for bus

Oh, my God sakes--hamsters!
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Old 01-09-2010, 10:52 PM   #8
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Re: Questions about "green" insulation for bus

...and gerbils. Oh my.
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Old 01-11-2010, 01:54 AM   #9
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Re: Questions about "green" insulation for bus

If you want quality and to go green, then I think you should do what Smitty said. Get stuff that is there and being trashed. Nothing is greener than keeping crap out of a landfill. I know my habitat restore here has a giant pile of hard foam 1 inch insulation. Just no full sheets. All smaller cuts. Take a ton of that stuff, get some foil tape and go to town. Or maybe newspaper...ive seen shredded newspaper being used after its been treated to keep it from lighting up at first spark.
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Old 01-12-2010, 10:25 PM   #10
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Re: Questions about "green" insulation for bus

There was a great article in the Oregonian about a school in Guatamala using plastic bags stuffed inside plastic water bottles and then stacked into walls and covered with concrete. Good use for something useless after one or two uses. Say that three times..... Also, a mixture of boric acid and diatomaceous earth will kill bugs trying invading any paper, cloth or wool insulation. I mix the diatomaceous earth in a spray bottle with a little water and spray anywhere bugs hide, including the dogs bedding, kills fleas, ants etc. Leslie
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