Originally Posted by nealtw
I hate to dissagree with Paul but you need air behind insulation, cross venting under the insulation in most parts of Canada is code. And yes dry out the insulation or repace it.
Let me see if i can understand this,( cross venting under the insulation in most parts of Canada is code) So to cross vent through the crawl space under the insulation, this air would come from outside? So he will be bringing in 20degrees
below zero air at times to vent his crawl space? Sure hope his pump and water lines aren't down there.
In Mi. we put 2" foam on block walls in the crawl space, plug off vents in the winter so the pump and water lines don't freeze. put plastic on the ground to stop moisture. No insulation in floor. Paul