Homeowner Guide
Should I recoat or replace my basement floor coating?
Replace a Metro Detroit basement coating when the film is unknown, peeling, or sitting on a slab at or above 4.0 lbs of moisture, because below-grade vapor and freeze-thaw will finish a skim coat on a 1940–1980 house, and the published rule is 100% removal, a retest, and a moisture-first rebuild—not another layer of paint downstairs.
Recoat means a new topcoat on a known, bonded film after a passing moisture test. Most failed basements are a replace.
Delamination percent cutoffs and recoat-to-replace cost ratios that are not on the facts ledger are marked [VERIFY].
How do I decide recoat versus replace on a Michigan basement?
If vapor is high, the film is unknown, or the slab is still leaking, replace or stop. Recoat is the exception.
Why is failed basement epoxy a full strip?
Unknown films hide paint, plasticizers, and vapor paths. A new color does not close them.
The published rule is 100% removal. Calculator removal adders are $1–$2 / sq ft extra.
After strip, a decorative rebuild often sits in the $6–$12 / sq ft basement range once moisture work is in the number.
How does a 1940–1980 slab change the recoat call?
Those houses often have no polyethylene vapor barrier. Below-grade vapor is the default, not a surprise.
A pretty film that “mostly stuck” can still fail the 4.0 lbs test. Recoating without a reading is how pinholes come back after the next thaw.
Freeze-thaw at the foundation will keep moving joints. Recoat does not stitch a stepped crack.
If I replace, how soon can we use the room?
Foot traffic is typically 24 hours. Heavy furniture is typically 48–72 hours on the basement systems we publish.
Standard epoxy can still be 3–7 days. Polyaspartic install windows run about 35°F–100°F+; epoxy wants 50°F–90°F.
Warranty language for a proper polyaspartic install is 15+ year residential (per quote). A recoat on a failed film does not inherit that.
What do people ask about basement recoat versus replace?
No. Failed or unknown epoxy is 100% removal. A skim coat downstairs peels at the walls when vapor and freeze-thaw hit the old intercoat.
At or above 4.0 lbs / 1,000 sq ft / 24 hr, this site requires a moisture barrier before a decorative build. Recoating over that number traps vapor on a below-grade 1940–1980 slab.
A coating-delamination percent cutoff is [VERIFY]. What is published: unknown epoxy is a full strip, and elevated MVER across more than 50% of the slab is a moisture-shield path.
A recoat-to-replace cost ratio is [VERIFY]. What is published: removal adders $1–$2 / sq ft extra, moisture adders $0.50–$1.25 / sq ft extra, and a decorative rebuild often $6–$12 / sq ft.
Usually yes. Bubbles are vapor or outgassing. Recoating over them reprints the holes. Strip, wait if the pour is under 28 days, test MVER, then rebuild.
Typically 48–72 hours for heavy pieces, with foot traffic often at 24 hours. Standard epoxy can be 3–7 days. Get the window in writing.