We spent the weekend applying a ‘peel and stick’ foundation waterproofing (Henry Blueskin) to the concrete walls, nailing 2″ EPS foam to the foundation walls and adding a dimpled drainboard over the foam. This might be a little overkill, but with all the sharp rock in the back fill and the entire roof draining to the the uphill side of the house, we felt it was best to put a durable material that drained well over the foam and waterproofing….I DO NOT want to have to dig up a foundation, ever!
Attaching the foam to the concrete was not too bad with a Ramset Powder actuated gun, but attaching the drain board is pretty tricky. After much trial and error, we think we have it figured out. Sunday was extremely windy and trying to attach 4×8 sheets of foam in the wind was trying. Finally, the wind got so bad we called it a day, and will finish up Monday so the foundation can be partially back filled Wednesday and we can move on the sub-rough plumbing, and gravel for the basement slab.