Win a copy of Grocery Story this week in the City Repair 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 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:
  • r ranson
  • Nicole Alderman
  • Anne Miller
stewards:
  • Mike Jay
  • paul wheaton
  • Joseph Lofthouse
garden masters:
  • Joylynn Hardesty
  • Steve Thorn
  • James Freyr
  • Greg Martin
  • Dave Burton
gardeners:
  • Carla Burke
  • Pearl Sutton
  • Dan Boone

What is PSP?

 
              
Posts: 49
Location: Seattle
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
You drive me crazy Paul!
You could have easily added one sentence to say what the heck PSP means. The only PSP I know of is Paint Shop Pro!

Steve
 
steward
Posts: 28062
Location: missoula, montana (zone 4)
hugelkultur trees chicken wofati bee woodworking
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Post/Shore/Polyethylene

This is a structure that is a pole structure (or post structure).  Considered by many to be the strongest and most stable.  Also, for wooded areas, the quickest and cheapest.  The major expense is really the roof.  But that gets addressed in PSP.

"Shore" has to do with the style of walls (and, it turns out, the roof).  Basically, good ole wood.  So you end up with a structure that looks a bit like a log/wood cabin on the inside.  And then you are going to put the weight of lots and lots of soil/dirt on it.  But soil touching wood causes problems so you use ....

Polyethylene:  aka black plastic.  There is clear plastic too.  But it is amazing how if you are familiar with the bits and bobs of this stuff, how it can be a powerful tool. 

The first book goes into a lot of detail about why a conventional house needs a foundation - and all of the issues that crop up and all the things one does to mitigate all of those issues.  It gets pretty complicated and you need to know what you are doing or you are going to screw everything up.  Then it compares PSP and shows how a lot of those problems just don't exist.

I think calling these structures "underground" is a misnomer.  Sure, you can use these techniques to do an underground structure ... and it is wise to not create too tall of a structure.  But you can create a structure with light coming in from all four directions.  The key is to use a bit of brains.  With that bit of brains, you can build a house with one third the effort and one quarter of the materials.  Plus the house can be made with 80% to 99% of materials right off your land (assuming a forested property). 

The key is the roof.  A green roof with 18 inches of soil and some polyethylene.  The downhill path of the soil must always go to soil - not to any man made barrier.  As long as you adhere to this, you can have a freaky cheap and easy green roof. 




 
Curse your sudden but inevitable betrayal! And this tiny ad too!
Solar Dehydrator Plans - Combo Package download
https://permies.com/t/solar-dehydrator
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!