Cob: Rubble Trench Foundation

[Amanda Peck]

Have you looked at the new cob book--Ianto Evans et al?  He's got a LOT to 
say about drains and foundations (in a word, YES!!!, and put a swale and 
drains behind the building as well, all taken to daylight!).  It's across 
the room, and I'm not sure I could summarize well anyway.  Seems like the rt 
foundation should be, all the way up, about the width of your wall, i.e., no 
footing.  But don't go building it that way on my say-so.


Spencer Perlman wrote:

Should the rubble be tamped or is compaction a non issue with this sort of 
foundation?  Also, we are considering putting a drain at the bottom of the 
footing, any suggestions for this task (materials, methods?)


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