This heat stress toolbox talk is for the first hot week as much as the hottest one. It's written to be read aloud at the start of a shift; with the discussion, it runs about five minutes.
How to run it: read the talk out loud, work through the three questions with the crew, and have everyone sign the sheet. The print button includes a crew sign-in page as the second sheet.
The talk, ready to read
Heat kills workers every summer, and the days that do it are often the first hot days, before bodies have adjusted. New crew and anyone back from a week off are most at risk: it takes one to two weeks of gradual exposure to get used to working in heat.
Drink water before you're thirsty: a cup every 15 to 20 minutes in real heat. Rest breaks in shade aren't slacking; they're how the body dumps heat. Heavy sun, heavy work, and PPE that traps heat all stack.
Know the ladder of trouble: heavy sweating and cramps, then headache, dizziness, and nausea, then confusion, stumbling, or a worker who stops making sense. That last stage is heat stroke. Call 911, get them to shade, soak them with water, and don't leave them alone. Minutes matter.
Look out for each other. The person going down from heat is usually the last one to know it's happening.
Talk about it on your job
- Where's the water and the shade on this job today?
- Who's new or just back, and are we easing them in?
- What's our plan if someone shows the confused stage: who calls, who cools?
The rule behind this talk
Heat doesn't have its own numbered construction standard the way falls and trenches do. OSHA addresses heat hazards under the General Duty Clause, OSH Act section 5(a)(1), which requires a workplace free from recognized hazards likely to cause death or serious harm, and collects its current heat guidance at osha.gov/heat-exposure. Check there for the latest, including any new federal heat rule and state-plan requirements. This talk is practice guidance, not a substitute for either.
Crew sign-in: Heat stress
| Name (print) | Signature |
|---|---|
Talk: sitesafetyhq.com/toolbox-talks/heat-stress/ · Keep this sheet with your safety program records.
The sign-in sheet, minus the paper chase
SiteSafetyHQ handles OSHA recordkeeping for small crews today: injuries reported from a phone, the recordable call answered with the rule cited, Forms 300/301/300A filled, deadlines watched. Weekly talks with crew sign-offs captured on the same phone are shipping next, and every plan will get them.
No card, no demo call. Flat $39 to $199/mo by company size.
Sources (checked August 4, 2026): OSH Act §5(a)(1) (General Duty Clause) · osha.gov/heat-exposure. Original text informed by public-domain OSHA and NIOSH material.
SiteSafetyHQ is an independent product, not affiliated with OSHA. Practice guidance, not legal advice. A five-minute talk is not complete training; your company remains responsible for the training and protections your specific work requires.