Yes, an asphalt shingle roof will eventually wear out, but expensive roof repairs generally stem from not replacing the occasional shingle blow-off or failing to put $5 of roof sealant at flashing areas.

They also filled me in on how to clean the concrete (floor maintainer with black pad), spray the dye, roll on a coat of sealant and roll on a coat of finish. 

The weird looking foam substance was Great Stuff foam sealant that I squirted all over the compressor to quiet it down.Nothing magic here, just dumping heat into water instead of air. 

Does anyone have a brand of deck stain and sealant that they love?

Dont over saturate ground or sealant with abnormal levels of compacted frozen water ie snow held in place.

This involves digging up the entire foundation, repairing cracks and damage, and then coating the entire thing with a sealant.

The deal seems good:Good B+ area in Columbia, SC suburb, great schools, 3 bed 2 bath, needs some cosmetic work (repaint interior, a few holes in the wall to fix, 1 broken window to replace, likely replace laminate flooring in 1 room, replace bathroom sealant)ARV is around 220k, it's offered for 165k and already has a cash offer of 172k (I'll be financing).

I agree with the others on the bleach and floor sealant.

He's also not done things we agreed to (place a sealant over suspected asbestos tile flooring before LVP), or chagned plans without notifying me (Locations of mini-split heads to different ROOMS, rather than more central areas).So today he asks me for a progress payment "so he can pay the other subcontractors and recover cost of additional materials he's incurred."

The inspector said it had a higher gloss which would make acid etching difficult so I'm trying to decide if I should just try and seal it with some sort of paint/sealant, and then carpet.