Note
Pulled up carpets only to find underlayment was comprised of 3/4" particle board which, over an unheated basement, had aborbed enough moisture over 35 years so as to be rather "unflat" and even crumbly in spots. This rendered our new composite flooring a no-go.
Rather than go with a glue down product, which would have worked but have noticeable undulations, or staying with carpet ( which didnt want to do) - either which would have simply gone over top of the crap underlayment and who knows what additional problems might ensue later - we sucked it up and had them demo everything down to the subfloor, which is in good shape. A significant amount of extra time, effort & money. Dang...
Crew worked until after 8 and will be back at 7am. But the new 1/2" ply underlayment is nice and flat, and screwed, not nailed so a solid floor, means we should be fine with our selected flooring choice.
So yeah, no runs at all this week... and the weekend isnt looking too promising either..