Is it good to coat in Provo, UT this week?
A live 7-day go/no-go calendar for epoxy & resin floors in Provo, built from the local forecast against the 5°F-above-dew-point rule. We lead with the signal a weather app misses: overnight condensation risk.
- Dew margin
- 0°F
- Overnight dew
- High
- Rain
- 61%
- Window
- —
High condensation risk overnight — surface dips to within 0°F of the 54°F dew point (low 53°F, 100% cloud, 3 mph wind). A fresh coat can blush/blister. Stop 4h before dew falls.
- Dew margin
- 6°F
- Overnight dew
- Low
- Rain
- 19%
- Window
- 10am–5pm
High humidity (92%, over the 85% mark) slows drying — keep an eye on the cure window.
- Dew margin
- 19°F
- Overnight dew
- Low
- Rain
- 0%
- Window
- 8am–5pm
Clear to coat: temps 52–75°F, RH under 70%, surface stays 19°F+ above the dew point, no rain in the cure window.
- Dew margin
- 21.2°F
- Overnight dew
- Low
- Rain
- 0%
- Window
- 8am–5pm
Clear to coat: temps 59–77°F, RH under 44%, surface stays 21.2°F+ above the dew point, no rain in the cure window.
- Dew margin
- 28.3°F
- Overnight dew
- Low
- Rain
- 0%
- Window
- 8am–5pm
Clear to coat: temps 61–83°F, RH under 36%, surface stays 28.3°F+ above the dew point, no rain in the cure window.
- Dew margin
- 27.9°F
- Overnight dew
- Low
- Rain
- 3%
- Window
- 8am–5pm
Clear to coat: temps 66–82°F, RH under 27%, surface stays 27.9°F+ above the dew point, no rain in the cure window.
- Dew margin
- 30.9°F
- Overnight dew
- Low
- Rain
- 2%
- Window
- 8am–5pm
Clear to coat: temps 66–86°F, RH under 25%, surface stays 30.9°F+ above the dew point, no rain in the cure window.
- High condensation risk overnight — surface dips to within 0°F of the 54°F dew point (low 53°F, 100% cloud, 3 mph wind). A fresh coat can blush/blister. Stop 4h before dew falls.
- Rain likely in the 24h cure window (61% chance, ~13.7mm) — it can wash out or mar an uncured coat.
- High humidity (87%, over the 85% mark) slows drying — keep an eye on the cure window.
Hold off. These are forecast numbers — confirm the surface temperature on-site before you start.
Why these thresholds
Installing within 5°F of the dew point causes amine blush / carbamation — a cloudy, greasy, hazed floor. The slab surface temp, not the air, is what counts.
- • Surface temp must stay 5°F above the dew point through application and cure (ASTM D3276 / ISO 8502-42).
- • Air + surface in the 50–86°F band (low-temp lines to 50°F).
- • Humidity under 85%; ideally under 80%.
- • No rain for 24h after application.
- • We use the forecast ground-surface temperature as a surface-temp proxy — confirm on-site with an IR thermometer.
Free in the beta
Watch this job site 24/7
Get an email the moment overnight dew, rain, or an out-of-range stretch threatens a fresh coat — and a morning digest with the best window ahead. No app to check; we watch the forecast for you.