Essential roof survey checklist for assessing the health of your commercial roof

A commercial roof is a critical asset that protects your business operations, inventory, and employees from the elements.

Over time, exposure to weather and wear and tear can compromise its structural integrity, leading to costly disruptions. Commercial roof surveys are essential to maintain its health and prevent expensive repairs or replacements. 

We’re here to guide you through our essential roof survey checklist for commercial properties, helping you safeguard your investment. 

Why are roof surveys important for commercial properties?

For commercial buildings, roof maintenance is more than just upkeep – it’s about ensuring safety, protecting assets, and avoiding downtime. A commercial roof survey can: 

• Prevent operational interruptions
• Prolong roof lifespan
• Ensure legal compliance

Whether you manage an office, warehouse, or retail space, a robust roof maintenance strategy starts with a thorough survey.

Essential commercial roof survey checklist 

1. Inspect external roof coverings 

• Check for damaged or missing roofing materials, such as metal panels, tiles, or membranes.
• Look for signs of corrosion, punctures, or tears on metal or flat roofs.

 2. Evaluate flashing and seals 

• Inspect flashing around HVAC units, vents, and skylights for signs of gaps or deterioration.
• Ensure all sealants are intact to prevent water ingress.

3. Assess drainage systems 

• Check gutters, scuppers, and drains for blockages from debris, leaves, or dirt.
• Verify that downspouts and drainage systems are functioning properly to prevent pooling.
• Inspect for corrosion or damage to drainage components.

4. Review the internal roof structure 

• Examine ceilings and walls for water stains, damp patches, or mould, which can indicate leaks.
• Look for light penetration in the roof deck, which is a clear sign of damage or gaps.
• Assess the condition of insulation materials for signs of moisture or compression.

5. Check structural integrity 

• Identify any areas of sagging or warping in the roof.
• Inspect support structures, such as beams and trusses, for signs of wear, cracks, or rot.
• Assess the roof’s load-bearing capacity, particularly if your business operates in regions with heavy snow or frequent storms.

6. Evaluate safety systems 

• Ensure rooftop safety railings, walkways, and access points are secure and compliant with regulations.
• Check that anchor points for fall protection systems are intact and functional.

Why hire a professional for commercial roof surveys? 

While some inspections can be handled in-house, a professional roof survey ensures a thorough assessment and reliable results. At NWIR, we specialise in commercial roof surveys designed to identify potential risks and offer actionable solutions. 

Here’s how we can help: 

• Provide a comprehensive roof condition report.
• Recommend repairs, maintenance, or replacements tailored to your business needs.
• Minimise disruptions to your operations with expert and efficient service.

When should you schedule a commercial roof survey?

The recommended frequency of roof surveys depends on the size, age, and type of your commercial roof, as well as external factors such as weather conditions. As a general rule:

• Conduct annual surveys to catch wear and tear early.
• Perform post-storm inspections to identify storm-related damage.
• Schedule surveys before and after major building work to ensure structural stability.

Partner with NWIR for expert commercial roof surveys 

Protecting your business begins with a well-maintained roof.

At NWIR, we offer professional roof surveys tailored to commercial properties, ensuring that your roof remains secure, compliant, and operational. 

Our team brings extensive experience in inspecting and maintaining commercial roofing systems, from flat roofs to industrial metal coverings. Get in touch with us today by calling 0800 046 1500 to book your survey and keep your business running smoothly.