Free tool
Pour Weather Window
Enter temperature, wind, humidity and sun and see an evaporation score and a clear go, careful or wait call.
The evaporation score uses a standard formula from temperature, humidity, wind and slab temperature. It is a planning guide, and your crew makes the final call on pour day.
How to use it
Three quick steps
- 1Enter the weatherTemperature, wind and humidity.
- 2Pick the sunShade, part sun or full sun.
- 3Read the callSee the evaporation score and what to do.
Questions
About the pour weather window
What is the evaporation score?
It is a standard estimate of how fast water leaves fresh concrete. High scores raise the risk of plastic shrinkage cracks.
Why do wind and low humidity matter so much here?
Front Range air is often dry and breezy, which can dry the surface faster than the slab can gain strength.
What if the call is wait?
Waiting a day or pouring earlier or later can lower the risk, and we plan windbreaks and curing for tougher days.
Next step
Services that go with this tool
MIX 102FlatworkConcrete PatiosBackyard patios in broom, stamped, colored or exposed finishes that fit your outdoor plans.See the service MIX 101Flatwork
Concrete DrivewaysNew concrete driveways built to handle Colorado freeze-thaw and daily traffic.See the service MIX 136Repair
Concrete SealingSealers that protect color, block moisture and make cleanup easier.See the service
Concrete PatiosBackyard patios in broom, stamped, colored or exposed finishes that fit your outdoor plans.See the service MIX 101FlatworkConcrete DrivewaysNew concrete driveways built to handle Colorado freeze-thaw and daily traffic.See the service MIX 136RepairConcrete SealingSealers that protect color, block moisture and make cleanup easier.See the service Ready to pour something great?
Call or text JL's Concrete, or send the form for your free estimate. We come to you, measure and put it in writing.