Seeking help on what I think might be a bad contractor job
HI, we just had our sub-basement (half above/half below grade) tricked out for a tv room. I have questions about two things: above grade insulation and below grade.
I see that the contractor put some insulation against the exterior concrete foundation wall. I've never seen this product before. It looks to have between 1/4" thickness at most and seems to be a greyish foam-like material I see in some packing embedded onto a rather rigid plastic mesh. It was shoved up against the exterior concrete wall with no gravel backfill. I don't know if there was waterproofing on the concrete wall - not sure how to recognize it. There is no black tar-y material that I can see. The mesh material is flimsy and isn't attached to the concrete in any way. It doesn't even touch it in some places because is more like a rigid netting. After it was pressed close to the foundation wall it was backfilled with regular garden soil. No gravel.
Does anyone know what kind of material that was applied?
How do I recognize waterproofing on the vertical walls below grade?
Do I need to dig this back up and put in other insulation and gravel?
The contractor is long gone, so contacting him is no use. He won't answer emails or phone calls. I'd like to fix the problem myself if I can.
The other question I have is that we had him put some rigid insulation against the concrete foundation wall on the interior of the basement. He then used regular fiberglass insulation in the stud walls (dn't know the rating), with a layer of sheetrock. The room is cold.
Should there have been some other type of insulation in this instance? Would foil backed insulation have been more appropriate for this situation?
I am worried about having to redo the entire thing.