Floors
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I estimate we've worked on about 1/15th of the total surface, which should take 12 person hours, and $100 in consumable materials.
I estimate to do the entire floor would take 180 person/hours and cost no more than $2000. ($1,800 in materials and $200 in rentals)
Lessons learned:
- we applied putty at least 2x as much as needed. Should have mopped clean later
- rotary sander is a difficult beast, should have stuck with the drum sander
- these shop vacs suck balls. The rental one was the best.
labor accomplished:
- 2 person hours vacuuming/digging up cracks
- 2 person hours sanding/vacuuming (40 grit)
- 3 person hours filling with putty
- (24 hour delay)
- 2 person hours sanding/vacuuming (60 and 80 grit)
labor estimated:
- 1 person/hour applying sealant
- (2-3 hour delay)
- 0.5 person/hour applying bottom finish coat
- (2-3 hour delay)
- 0.5 person/hour abraiding with rough sponge
- 1 person/hour applying top finish coat
tools needed:
- drum sander (rental, $95 for the weekend)
- shopvac (rental, $30 for the weekend)
- sponge mop
- trowels
materials needed:
- putty $70 for a 3.5 gal, used $20 of it
- belts .5 $10 40 grit, same for 60 and 80