Heat illness kills construction workers every summer. It's also one of the most preventable hazards on any jobsite — and preventing it doesn't always require expensive solutions.
Know the Warning Signs
Heat illness progresses fast. By the time a worker is confused or unresponsive, you're dealing with heat stroke — a medical emergency. Catch it earlier:
- Headache or dizziness
- Nausea or vomiting
- Weakness or heavy fatigue
- Irritability or unusual behavior
- Stopped sweating in extreme heat
Train every worker and supervisor to recognize these signs and act immediately.
9 Low-Cost Solutions That Work
1. Cooling towels — Lightweight, reusable, effective. Keep a cooler of them near the work area.
2. Hard hat neck shades — Direct sun on the neck is a major heat load driver. These cost a few dollars and make a real difference.
3. Cooling skull caps — Worn under the hard hat, soaked in cold water. Workers who use them swear by them.
4. Electrolyte powder — Water alone isn't enough during heavy exertion in heat. Mix electrolyte packets into water coolers.
5. Pop-up shade structures — A canopy near the work area gives workers somewhere to cool down without walking off the site.
6. Extra water coolers — One cooler for 20 workers isn't enough. Workers skip water breaks when the cooler is far away or empty.
7. Sunscreen station — Put it out every morning. Sunburn reduces the body's ability to regulate temperature.
8. Cooling vests — Phase-change vests work for 2-3 hours and significantly reduce core temperature. Worth the investment for workers in direct sun.
9. Misting fans — Effective in low humidity. Position them at break areas, not just for show at the site entrance.
Acclimatization Is Not Optional
New workers and workers returning from time off need gradual exposure to heat. OSHA's guidance: start at 20% of normal workload in heat on day one, building up over 7-14 days. Skipping acclimatization is how healthy workers end up in the hospital.
The 2026 OSHA Heat Standard Changes the Rules
The new federal heat standard makes written heat illness prevention plans, environmental monitoring, and structured rest breaks legally required — not just recommended. See our full guide to the 2026 OSHA heat stress standard.
Greenberg Safety helps teams build practical heat illness prevention programs that meet the 2026 standard. Call (512) 585-7070 or schedule a consultation.
Related reading: Texas Contractor Heat Illness Prevention Plan · OSHA heat illness prevention information · Department of Labor worker safety resources