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Pops1532 01-09-2013 08:01:35 98.227.131.18 Report to Moderator

Ungrouted block foundations are normally fine but there are a few things you need to keep in mind...... NEVER backfill a block foundation until you have the weight of the deck, walls and roof on it. Let the fill settle. Don't compact it. I think the approach you asked about is asking for problems. Water or cave ins damaging the foundation walls. Frost heaving the foundation or basement floor. And the liability of leaving an open hole. In every jurisdiction I know of (and I've been in the construction business 36 years)building permits expire in 6 months or one year. The longer you drag out a project the more chance you have of someone stealing material. If you're dead set on building over a couple year period I suggest you use poured walls and don't pour the floor. You could water/damp proof and backfill. [Reply]   [No Email]