Roofing over concrete
Hi, I have a very old concrete car-port hugging side of house, and its concrete roof has been doubling as a patio for decades.
Its approximate dimensions: 26' x 12.5'
Note: Chimney juts into the carport/patio at one point.
Due to its crumbling condition and leaking into the inside of carport, a mason is doing preliminary repair work as follows:
Digging down along side of carport
Cleaning cracks on patio/roof
Bonding agent on east-wall & rear wall
Applying stucco with sponge finish on walls
Filling cracks & corner of roof w/cement
Brushing off loose chippings on carport ceiling
The lowest-cost next step (per the mason) would be to apply rubber roll + torching, to waterproof the carport. (not sure whether its necessary to apply urethane prior to the rubber, or if the rubber suffices.
I only use the patio very seldom, to access the back yard, and could care less whether it looks "pretty" or not, since the house may possibly be torn down in a few years, due to new housing construction throughout the area.
What I'd appreciate, is if someone here knows what would be a fair estimate for rubber-roll +torch roofing per above dimensions (with preliminary power washing and/or whatever other preliminaries are advisable.