Win a copy of 5 Acres & a Dream this week in the Homestead forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
permaculture forums growies critters building homesteading energy monies kitchen purity ungarbage community wilderness fiber arts art permaculture artisans regional education skip experiences global resources the cider press projects digital market permies.com private forums all forums
this forum made possible by our volunteer staff, including ...
master stewards:
  • Nicole Alderman
  • Anne Miller
  • Pearl Sutton
  • r ranson
  • Mike Haasl
  • James Freyr
stewards:
  • paul wheaton
  • Joylynn Hardesty
  • Burra Maluca
garden masters:
  • Steve Thorn
  • Greg Martin
gardeners:
  • Kate Downham
  • Jay Angler
  • thomas rubino

Rice Hulls--insulating

 
pollinator
Posts: 325
Location: Victor, Montana; Zone 5b
91
hugelkultur forest garden food preservation
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I couldn't find adequate information online elsewhere so I figured someone here could shed light on my questions.

Rice hulls seem an excellent insulation source, I'm looking at using them in the ceiling under both a living roof and a small connected cedar shake roof. The only bags of rice hulls I could find come in 50lbs at the cheapest $12 a bag plus shipping. They rate at around R-3 per inch so my questions are:

1) how many pounds of rice hulls do I need for a 500 square foot roof? They come in compressed 7 cubic foot bags, but I have no clue how far each bag would go at say a 10 inch layer (R-30).
2) anyone know where I can source them cheaper? It is an ag. waste product, you would think I could find it for a bit less.
3) has anyone actually used rice hulls? experiences? results? method?

Thanks!
 
pollinator
Posts: 3446
Location: Kansas Zone 6a
54
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
They are used as bedding in chicken or turkey cafos, so they are available in bulk semi loads.

But you are going to have a lot of freight to get them to Montana.  

 
And tomorrow is the circus! We can go to the circus! I love the circus! We can take this tiny ad:
2020 Permaculture Design Course for Scientists and Engineers, June 14-27
https://permies.com/wiki/permaculture-design-course-2020
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!