Summer can be one of the busiest and most profitable times of the year for spray foam contractors. Unfortunately, it can also be one of the most dangerous.

Spray foam installers often work in attics, crawl spaces, metal buildings, and enclosed job sites where temperatures can climb well above outdoor conditions. When heat combines with physical labor and personal protective equipment (PPE), the risk of heat-related illness increases dramatically.

Understanding the warning signs and taking preventive measures can help protect both workers and productivity.

Why Spray Foam Contractors Face Increased Risk

Unlike many outdoor trades, spray foam contractors frequently work in confined spaces where ventilation may be limited.

Common high-risk environments include:

• Attics

• Crawl spaces

• Metal buildings

• Unconditioned warehouses

• Roof deck applications

• New construction projects without HVAC

In many cases, temperatures inside these areas can exceed 120°F during summer months.

When workers are wearing coveralls, gloves, respirators, and other protective equipment, the body's ability to cool itself becomes even more challenging.

Heat Exhaustion

Heat exhaustion is one of the most common heat-related illnesses affecting construction workers.

Symptoms may include:

• Heavy sweating

• Dizziness

• Headaches

• Muscle cramps

• Nausea

• Fatigue

• Weakness

• Rapid heartbeat

If heat exhaustion is not addressed quickly, it can progress into a much more serious condition.

What To Do

If a worker experiences symptoms of heat exhaustion:

• Move them to a cooler location immediately

• Remove excess protective clothing if safe to do so

• Provide cool water

• Use fans or cool towels

• Allow time for recovery before returning to work

Heat Stroke: A Medical Emergency

Heat stroke occurs when the body's cooling system fails.

Symptoms may include:

• Confusion

• Disorientation

• Loss of coordination

• Fainting

• Seizures

• Extremely high body temperature

• Hot, dry skin

Heat stroke is a medical emergency that requires immediate professional treatment.

What To Do

• Call emergency medical services immediately

• Move the person to a cooler area

• Apply cool water and cooling measures

• Do not delay seeking medical attention

Dehydration

Many contractors underestimate how quickly dehydration can occur during summer work.

Signs of dehydration include:

• Dry mouth

• Headaches

• Fatigue

• Dark urine

• Dizziness

• Reduced concentration

Even mild dehydration can reduce productivity and increase the likelihood of mistakes or accidents.

Muscle Cramps and Physical Fatigue

Working in extreme heat places additional stress on muscles and the cardiovascular system.

Workers may experience:

• Muscle cramps

• Reduced endurance

• Slower reaction times

• Increased injury risk

• Poor decision-making

These effects can contribute to accidents and lower overall jobsite performance.

Preventive Measures Every Crew Should Follow

Hydrate Before You Are Thirsty

Waiting until you're thirsty means you're already becoming dehydrated.

Encourage crews to:

• Begin hydrating before work starts

• Drink water regularly throughout the day

• Increase fluid intake during high-temperature conditions

Schedule Work Strategically

Whenever possible:

• Start earlier in the day

• Perform attic work during cooler morning hours

• Schedule breaks during peak afternoon heat

Take Cooling Breaks

Regular cooling breaks help workers recover and reduce heat stress.

Provide access to:

• Shade

• Air-conditioned vehicles

• Cooling fans

• Cool drinking water

Watch Your Crew

Workers often recognize symptoms in coworkers before they recognize them in themselves.

Create a culture where team members watch for signs of heat stress and speak up immediately when concerns arise.

Wear Proper PPE

PPE remains critical for spray foam applications, but workers should ensure equipment fits properly and remains as comfortable as possible while maintaining safety standards.

 

Consider Cooling Vests During Extreme Heat

One piece of equipment that is becoming increasingly popular among spray foam contractors is the cooling vest.

When working in attics, crawl spaces, and other high-temperature environments, cooling vests can help reduce heat stress by helping workers maintain a lower core body temperature throughout the day. While cooling vests are not a replacement for hydration, breaks, or proper heat safety practices, they can be an effective tool for improving comfort and reducing the physical strain caused by extreme summer temperatures.

Potential benefits of cooling vests include:

• Improved worker comfort

• Reduced heat fatigue

• Better productivity during long workdays

• Increased focus and concentration

• Lower risk of heat-related stress

For contractors working through the hottest months of the year, cooling vests can be a valuable addition to an overall heat-safety program.

Check out our selection of cooling vests here:

https://www.sprayfoamgear.com/collections/cooling-vests

Final Thoughts

Summer heat can be more than uncomfortable—it can be dangerous. Heat exhaustion, dehydration, heat stroke, and physical fatigue can impact both worker safety and business productivity.

The most successful spray foam contractors treat heat safety just like equipment maintenance: they plan ahead, monitor conditions, and take action before small problems become serious emergencies.

A safe crew is a productive crew, and protecting your team from heat-related illness is one of the smartest investments you can make during the summer season.