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Posted On: August 1, 2024

Commercial Roof Inspection Guide for Property Owners

Maintaining the integrity of a commercial building starts at the top—literally. The roof is one of the most critical components of any structure, yet it often goes unnoticed until there’s a problem. For building owners and facility managers, a regular commercial roof inspection is indispensable for ensuring the longevity and safety of your property.

In this expert blog post, we will walk you through everything you need to know about commercial roof inspections, from:

  • Understanding why they are essential
  • Outlining a step-by-step inspection process
  • Proactive steps in maintaining your commercial roof

Why Commercial Roof Inspections Are Essential

Is a roof inspection really THAT important? Absolutely! Here are some of the reasons why!

  • Prevent Costly Repairs: One of the primary reasons for regular roof inspections is to prevent costly repairs down the line. Small issues can escalate quickly if left unattended. Regular inspections can identify minor problems before they become significant issues, saving you money in the long run.
  • Ensure Safety: A damaged roof can pose severe safety risks, including the potential for structural failure. For businesses, the safety of employees and customers is paramount. Regular inspections help ensure that the roof remains in good condition, mitigating any risks associated with structural failures.
  • Extend Roof Lifespan: Routine roof inspections can significantly extend the life of your commercial roof. By identifying and addressing issues early, you can avoid premature roof replacements, which can be both costly and disruptive.
  • Meet Warranty Requirements: Most commercial roofing warranties require regular maintenance and inspections. Failing to adhere to these requirements can void your warranty, leaving you unprotected in case of severe damage.
  • Protect Your Investment: Commercial properties are considerable investments. Regular roof inspections are a small price to pay to protect that investment. A well-maintained roof adds value to your property and ensures that it remains an asset rather than a liability.

Components of a Commercial Roof Inspection

A commercial roof inspection has several different parts:

Visual Inspection

The first step in a commercial roof inspection is a visual examination. This involves walking the roof and looking for visible signs of damage or wear and tear. Key areas to focus on include:

  • Roof Membrane: Check for cracks, blisters, or punctures.
  • Flashing: Inspect around chimneys, vents, and skylights to ensure flashing is intact.
  • Seals and Joints: Look for signs of wear and tear in seals and joints.
  • Drainage System: Ensure that gutters and downspouts are clear and functional.

Infrared Scanning

Infrared scanning is a non-invasive method used to detect moisture trapped beneath the roof membrane. This advanced technology can identify leaks that are not visible during a standard visual inspection.

Core Sampling

Core sampling involves removing a small section of the roof to examine its layers. This method provides invaluable information about the roof’s composition and condition, including any hidden damage.

Moisture Surveys

Moisture surveys use specialized equipment to measure the moisture content within the roof system. High moisture levels can indicate underlying problems that need to be addressed.

Roof Drainage Analysis

Proper drainage is crucial for the longevity of a commercial roof. Inspecting the drainage system ensures that water is not pooling on the roof, which can lead to significant damage over time.

10 Steps to Conduct a Commercial Roof Inspection

checking inspection by technical team

Wondering what your roof inspection will consist of? Look for these common steps.

Step 1: Prepare for the Inspection

Before beginning the inspection, gather all necessary tools and materials. These may include:

  • Safety gear (harness, helmet, gloves)
  • Flashlight
  • Infrared scanner
  • Moisture meter
  • Ladder
  • Notepad and camera for documentation

Step 2: Conduct a Preliminary Visual Inspection

Start with a preliminary visual inspection from the ground. Look for obvious signs of damage, such as sagging areas, missing shingles, or debris accumulation. This initial assessment can provide clues about potential problem areas that need closer examination.

Step 3: Inspect the Roof Perimeter

The roof perimeter is often the most vulnerable part of a commercial roof. Inspect the edge for signs of damage or wear and tear. Pay special attention to flashing, seals, and joints.

Step 4: Examine Roof Penetrations

Roof penetrations, such as vents, skylights, and HVAC units, are common sources of leaks. Check these areas carefully for signs of damage or improper sealing.

Step 5: Assess the Roof Surface

Walk the roof surface and inspect it for any visible signs of damage, such as cracks, blisters, or punctures. Take notes and photographs of any areas that require further investigation.

Step 6: Conduct Infrared Scanning

Use an infrared scanner to detect any hidden moisture beneath the roof membrane. This step is crucial for identifying leaks that are not visible during the visual inspection.

Step 7: Perform Core Sampling

If necessary, perform core sampling to examine the roof’s layers. This step provides detailed information about the roof’s condition and helps identify any hidden damage.

Step 8: Evaluate the Drainage System

Inspect the drainage system to ensure that it is clear and functioning correctly. Look for any blockages or signs of wear in the gutters, downspouts, and drains.

Step 9: Document Findings

After completing the inspection, document your findings in detail. Include notes, photographs, and any measurements taken during the inspection. This documentation will be invaluable when planning repairs or maintenance.

Step 10: Develop a Maintenance Plan

Based on your findings, develop a maintenance plan to address any issues identified during the inspection. This plan should include both immediate repairs and ongoing maintenance tasks to ensure the longevity of your commercial roof.

Frequency of Commercial Roof Inspections

Regular roof inspections are essential for maintaining the integrity of a commercial roof. The frequency of inspections will depend on various factors, including the age of the roof, local climate, and the type of roofing material. However, a general guideline is to conduct inspections at least twice a year—once in the spring and once in the fall.

In addition to these biannual inspections, it is also advisable to conduct an inspection after any significant weather events, such as storms or heavy snowfall, which may cause damage to the roof.

Common Issues Identified During Commercial Roof Inspections

There are all sorts of issues that might be found during your inspection. Here are some of the most important ones to prep for:

Leaks and Moisture Infiltration

One of the most common issues identified during commercial roof inspections is leaks and moisture infiltration. These can be caused by damaged roof membranes, improper sealing around roof penetrations, or clogged drainage systems. Addressing leaks promptly is crucial to prevent further damage to the roof and the building’s interior.

Ponding Water

Ponding water, or water that remains on the roof surface for more than 48 hours, is a common problem in commercial roofs. It can lead to significant damage, including membrane deterioration and structural issues. Proper drainage is essential to prevent ponding water.

Roof Membrane Damage

Damage to the roof membrane, such as cracks, blisters, or punctures, is another common issue. This damage can be caused by various factors, including weather, foot traffic, and debris. Regular inspections can help identify and address membrane damage before it becomes a significant problem.

Flashing and Sealant Issues

Flashing and sealants are critical components of a commercial roof, as they provide a watertight seal around roof penetrations and edges. Over time, flashing and sealants can deteriorate, leading to leaks and moisture infiltration. Regular inspections can help identify and address these issues before they cause significant damage.

Vegetation Growth

Vegetation growth on a commercial roof can cause damage to the roof membrane and create potential entry points for moisture. Regular inspections can help identify and remove any vegetation growth before it becomes a problem.

The Role of Professional Roof Inspectors

While building owners and facility managers can conduct basic roof inspections, hiring a professional roof inspector offers several advantages. Professional inspectors have the training, experience, and specialized equipment needed to conduct thorough inspections and identify potential issues that may be overlooked during a basic inspection.

Additionally, professional roof inspectors can provide detailed reports and maintenance plans, helping building owners and facility managers make informed decisions about roof maintenance and repairs.

Make A Commercial Roof Inspection Plan With Northface

A man walking on roof

Regular commercial roof inspections are essential for maintaining the integrity, safety, and longevity of your building’s roof. If you’re ready to take the next step in maintaining your commercial roof, consider working with a professional roof inspector. Their expertise and experience can help ensure that your roof remains in excellent condition for years to come.

For more information or to schedule a professional roof inspection, contact us today. Our team of experts is here to help you protect your investment and ensure the longevity of your commercial roof.

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