Exterior Coatings · Needs dry surfaces and temperatures suited to the coating; plan work around sun and shade.
01Work9:00 AM–11:00 AM
02Wrap & secure30-minute sample allowance
03Protect the finish4-hour sample allowance
Sample company rules for this trade: rain chance at most 40%, gusts at most 18 mph, air at most 95°F. Everything else uses the trade's shop rules. The call lists every limit it uses under Sources, marked Company rule, Product sheet or Shop rule. Task: Spray exterior coating · Apply coating. Company rules here are examples, not manufacturer limits or universal work thresholds. Customize your own settings in the real app.
Sample scenario, not live weather
HOLD
Hold: rain
75% rain chance at 1:00 PM, over your 40% limit. There isn't time to work and still leave 4 hours 30 minutes for wrap and protection before it (your company rule).
Binding limit
Rain chance no more than 40%
Next change
12:00 PM CDT
Now
Radar at the job: no rain (sample frame 8:58 AM CDT)Nearest station report: sun and clouds, 78°F (sample report 8:51 AM CDT)Sample scenario, not live weather
Checked
9:00 AM CDT · forecast issued 0 min earlier
Job mode: Unspecified. The stricter New / full construction rules apply until a mode is saved.
Weather need for Exterior painting & staining: Needs dry surfaces and temperatures suited to the coating; plan work around sun and shade.
Assumptions (4) and sources
Company ruleWrap buffer of 30 minutes is your company rule.
Shop ruleShop rule: minimum air temperature of 35°F with no product selected.
Shop ruleShop rule: wall surface at least 5°F above the dew point. Forecast air stays clear of it; the forecast does not measure the surface.
Forecast timingAssumes the forecast issued 0 minutes ago is still current. Official forecasts are reissued at least twice a day and sooner when weather changes; a forecast older than 13 hours is treated as stale.
Company ruleRain chance no more than 40%
Company ruleWind gusts no more than 18 mph
Company ruleAir temperature no more than 95°F
Shop ruleAir temperature at least 35°F
Shop ruleWall surface at least 5°F above the dew point (forecast check, watch only)
ContractorWeather planning margin: 3°F on temperature, 2°F on dew-point spread, 30% rain chance in any hour, 5 mph on wind. Rain counts as expected at 60% or more.
A planning call based on the forecast and the rules shown. It is not a warranty or proof of compliance.
Conditions need attention in the selected work or protection window.
Rain probability is outside your selected tolerance in this forecast interval.
EXACT-PRODUCT SAMPLE
Choose the product for this work.
PRO
MADE FOR YOUR TRADE
Follow the wall, then the drying window.
SAMPLE
138 trades across 20 families.
Selected: Exterior painting & staining
Prioritize drift, masking stability, application-height wind and nearby property; preserve the full final-coat protection window.
Needs dry surfaces and temperatures suited to the coating; plan work around sun and shade.
Save a separate start and finish for each elevation and product coat.
9:00 AM–11:00 AM · Illustrative forecastCheck the jobsite before applying a product
Rain & exposed work
Context
Hourly precipitation probability 10%. Probability does not supply rain amount or minute-level arrival. An overlapping 1-hour forecast accumulation contains 0.00 in; it is not the amount for each hour or an exact onset time.
Sequence smaller elevations so the last brush stroke still has the selected coating's rain-resistance window. Include gutters and splashback above fresh paint.
Wind & handling
Context
Forecast sustained wind 8 mph; gusts 14 mph. Work-height conditions and equipment limits still need a check.
For spraying, check application-height wind and downwind cars, plants and adjoining property. Consider brush or roller work where the product permits; gusts also move masking.
Humidity & dew
Context
Forecast humidity 67%; dew point 64°F. Neither measures substrate moisture or the surface margin above dew point.
Record wall temperature and its margin above dew point. Humidity can extend drying; touch-dry paint does not establish recoat or rain resistance.
Air, surface & material
Context
Forecast air 78–79°F. Surface and material temperatures need their own readings.
Compare air, wall and paint temperatures with the exact base and formulation. Keep checking shaded walls and the required overnight period.
More weather & field considerations 3 more checks
Sun & shade
Context
Forecast sky: Sun and clouds. Actual wall, pavement and work-area exposure still needs an on-site check.
Move around the building by actual wall exposure. Measure sun-heated siding before coating; a sunny forecast does not tell you the wall temperature.
Previous rain & site recovery
Check needed
Complete observed rainfall for the preceding 24 hours is unavailable. Future forecasts and nearby station snapshots cannot establish site recovery.
After rain or pressure washing, inspect joints and porous areas and measure wood moisture where required. Elapsed dry hours alone do not establish readiness.
Crew heat context
Check needed
A complete heat-index series is unavailable for this window. Review air temperature, humidity, actual exposure and the crew's heat procedure.
Plan shaded prep and ground work around the crew's heat procedure; ladders, protective clothing and exposed walls change the workload.
Confirm at the jobsite
Surface temperature · Surface margin above dew point · Surface confirmed dry · Surface prepared and clean · Material temperature
Sources & what this check means
Trade planning guidance. Weather describes the selected forecast area and interval; field checks describe only their recorded time. Exact product limits are checked separately. These prompts do not establish work clearance, cure or warranty coverage.