Heat Stress Toolbox Talk

Project: ____________ · Date: ____________ · Led by: ____________

Here's the statistic that should change how we run hot days: most workers who die from heat die in their first week on the job — many on their very first day. Their bodies never got the chance to adapt. Heat doesn't just make you miserable; it kills workers every summer, and it builds quietly.

Why it matters

Heat illness is progressive — cramps become exhaustion becomes heat stroke — and the person going down is usually the last to notice, because confusion is a symptom. That's why heat safety is a crew job: we watch each other.

Key points — cover all of these

1. Drink water before you're thirsty — about a cup every 15–20 minutes in the heat. Thirst means you're already behind. Skip the energy drinks; they work against you.
2. New workers and anyone back from a week away ramp up gradually — acclimatization takes days, and it's why first-week workers die.
3. Use shade breaks on the schedule, not just when someone feels bad. Rest is part of the production plan on hot days.
4. Know the ladder: heavy sweating, cramps, headache, nausea = heat exhaustion — stop, shade, water, cool. Confusion, staggering, hot dry skin, collapse = heat stroke — call 911 and cool them aggressively NOW. Minutes matter.
5. Watch your crew: check on the quiet guy, the new hire, the one who stopped sweating. Ask twice.
6. Heavy PPE, direct sun, and humidity all stack the load — adjust work/rest cycles to the real conditions, not the forecast from this morning.

Ask the crew

The answers are the point — this is where today's real hazards surface.

• Who on this crew is new or just back from time off — who's watching them this week?
• Where is water and shade staged today, and is it close enough that people will actually use it?
• Does everyone know the difference between heat exhaustion and heat stroke — and that stroke means 911, not the break room?

The one thing today

Today, drink on the schedule, not on thirst — and check on one crewmate every hour.

Reference: OSHA General Duty Clause; OSHA-NIOSH heat guidance (Water. Rest. Shade.)

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