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mopinko (44,162 posts) Tue Jun 16, 2015, 12:27 PMlooking for greener insulation. still holding out hope that i will be able to build a little barn on my farm. want to be a model of green building. i have a basement half full of of windows and doors. i know where i can get most all that stuff recycled and very cheap. anyway, i have been wracking my brain for a green form of insulation. it will have thick walls anyway with reclaimed lumber for the framing. i refuse to use pink. i know if i dig i can find hemp. but a thought occurred to my just now, and i wonder what folks think- what about cardboard? cut used cardboard to the width you need, and put in a bunch of layers. i will be finishing the insides w old galvanized roofing. would also like to come up with something good for insulating the stone walls that will be foundation. hoping to get the stone from said recyclers, who are taking down 2 limestone houses up on the north shore. they are standardized blocks, 4"x10". so, it would need to be double coursed. maybe i can leave a gap in there and also fill it was several layers of cardboard. hoping to hit r40-50. what sez the brain trust?* eta- mostly it is my steel roof that will need insulation.
Kali (41,151 posts) Tue Jun 16, 2015, 12:50 PM1. Barns don't really need insulation. They need good VENTILATION, but NOT drafty. Other than that, I would say straw/straw bales.
mopinko (44,162 posts) Tue Jun 16, 2015, 04:49 PM2. not an animal barn. its an urban farm, so it is a bit different. i prolly shouldnt even call it a barn, but i lack a better word. i need it to be insulated enough for a grow space on the second floor. (a half floor, actually) i will have some baseboard type heat, but hope that it is more occasional back up than full time heat. the first floor will be a couple parking places and equipment storage, maybe winter some crop storage. maybe some aquaponics. so preferably kept from freezing. might occasionally have some chickens in there, but mostly not.
Her "green insulation" idea, coupled with baseboard heating, sounds more like "fire hazard" to me.
what about cardboard? cut used cardboard to the width you need, and put in a bunch of layers.
Shredded newspapers make for good insulation, too. May her demise be as glorious as it would be brief.
4 replies, 69 views
Kali (41,154 posts) Tue Jun 16, 2015, 08:55 PM 3. ah an "out building" not sure about cardboard, what is wrong with fiberglass? I know there are some cellulose products that are supposed to be "green" I would worry about cardboard and moisture.
Hassin Bin Sober (12,844 posts) Tue Jun 16, 2015, 11:07 PM4. What's wrong with the cellulose you can get at Homer's? It's made from recycled paper and treated to be fire resistant. Last I checked they were rening the machine for free if you bought 20 bags.
Sounds more like a "grow" operation to me.
She should use oily rags. Lots and lots of oily rags.
It has to be lightly sprayed with Linseed oil for it to work properly.
Use mud dummie. Earth is a fine insulator. Works for the Eskimo people.
No, it should be soaked overnight.I'd recommend used motor oil, it's cheaper, plentiful, and what DUmmie can resist the thought they would be "recycling" it.
I'm old fashioned, DD. the slow oxidation of the linseed oil allows it to combust around 0300. For a double wammy, she should seal/stain all woodwork, then pile the cleanup rags in the corner.