No Hot Works Sign

No Hot Works Sign

The No Hot Works Sign provides a clear visual instruction that hot work activities are prohibited in a particular area. Hot work can include activities such as welding, flame cutting, brazing, soldering and some grinding or cutting operations that generate heat, sparks or flame.

Featuring a red prohibition symbol and clear NO HOT WORKS wording, the sign helps workers, contractors and visitors quickly recognise areas where these activities must not be carried out.

Where Is This Sign Used?

No Hot Works Signs are suitable for locations where heat, sparks or open flames could create a hazard or where hot work is restricted by site procedures.

Common locations include:

• Industrial workplaces
• Manufacturing facilities
• Workshops
• Warehouses
• Construction sites
• Fuel and chemical storage areas
• Plant and machinery areas
• Maintenance facilities
• Restricted work areas

Why Use a No Hot Works Sign?

Hot work activities can introduce ignition sources into the workplace. Clearly identifying areas where these activities are prohibited helps communicate an important site restriction before work begins.

A No Hot Works Sign can help to:

• Clearly identify areas where hot work is prohibited
• Communicate restrictions to employees and contractors
• Support workplace hot work procedures
• Reduce the risk of prohibited ignition sources being introduced
• Reinforce designated hot work and restricted work areas
• Provide a clear visual reminder at entry points and work areas

Common Industries & Applications

No Hot Works Signs may be used across:

• Manufacturing
• Engineering
• Construction
• Warehousing
• Oil and fuel facilities
• Chemical handling and storage
• Utilities
• Transport and logistics
• Processing facilities
• Maintenance operations

Materials & Sizes

The No Hot Works Sign is available in a range of materials and standard sizes to suit different installation locations.

Material options include:

• Adhesive vinyl
• 4 mm ACM
• 2 mm PVC
• 3 mm or 5 mm Corflute
• Magnetic in selected sizes

Signs are laminated to provide additional protection for the printed surface.

Choosing the Right Sign Size

As a general viewing-distance guide:

• 300 × 225 mm – up to approximately 5 metres
• 450 × 337 mm – approximately 10 metres
• 600 × 450 mm – approximately 10–15 metres
• 900 × 600 mm – approximately 15–20 metres
• 1200 × 800 mm – approximately 25–30 metres

Consider a larger sign for entrances, large industrial areas or locations where the message needs to be visible from further away.

Related Hazards

Hot work can introduce hazards involving:

• Sparks
• Open flames
• High temperatures
• Ignition of combustible materials
• Flammable liquids or vapours
• Fire
• Heat-producing equipment
• Work in restricted or hazardous areas

Helps Comply With

Clear prohibition signage can form part of a workplace’s wider system for communicating hot work restrictions and site safety procedures.

A No Hot Works Sign does not replace a workplace risk assessment, hot work permit system or other required safety controls. The appropriate controls will depend on the work being undertaken and the hazards present at the particular site.

Frequently Asked Questions

What is considered hot work?

Hot work commonly includes activities that generate heat, sparks or flame, such as welding, flame cutting, brazing and soldering. Some grinding and cutting operations may also be treated as hot work depending on the work and site conditions.

Where should a No Hot Works Sign be installed?

It can be positioned at entrances to restricted areas, near hazardous or combustible materials, around plant areas or anywhere workers and contractors need to know that hot work is prohibited.

Can this sign be used outdoors?

Yes. For outdoor installations, choose an appropriate material such as ACM, PVC or Corflute. The printed surface is laminated for additional protection.

What size should I choose?

The appropriate size depends on the installation location and required viewing distance. For entrances and general workplace use, 450 × 337 mm or 600 × 450 mm are commonly suitable options.

Can I change the wording?

Yes. We can manufacture a custom version to suit your workplace requirements. A custom wording/design fee applies.

Related Products

• No Smoking Sign
• No Smoking No Naked Flames Sign
• No Naked Flames Sign
• Danger Flammable Material Sign
• Danger Flammable Gas Sign

Not sure if this is the right sign for your workplace or facility? Read our guide “Prohibition Signs in the Workplace: What They Mean and Why They Matter” to learn about prohibition symbols, compliance requirements and when different prohibition signs should be used.

Not sure if you’ve got all the safety signage you need?
Download our Free Safety Signage Checklist to make sure your workplace complies with New Zealand safety standards — it’s a quick and easy way to identify missing signs and stay compliant for further information check out 5 Workplace Signs Every Office Needs (And Why They Matter).

Health and safety is an issue that should not be ignored. As a result, the mission of Hazard Signs NZ is to provide quality-made Health and Safety signs. Great prices and our convenient online ordering platform make us a preferred supplier. Our signs are designed and manufactured in Invercargill to meet the workplace health & safety needs of businesses and industries in New Zealand.

Please note. We make all safety signs to order in our factory and therefore, it may take up to 5 to 10 business days to receive your order. Require your order urgently. Please contact us to confirm an estimated delivery date before placing your order.

Finally, if you are not sure about what sign you need for your business. Just contact us at +6432182678 or email us and we will make it for you.