Commercial felt roofs are a common sight across warehouses, offices, schools, and retail buildings in the UK. Known for their practicality, flexibility, and affordability, felt roofs can provide excellent protection when properly installed and maintained. However, like any flat roofing system, they are exposed to weathering, UV damage, and general wear over time.
When leaks, cracks, or surface deterioration appear, choosing the right repair option is essential to restore performance and prevent further damage. At Brierley Hill Roofing Repairs, we help businesses across Brierley Hill and the West Midlands identify the most effective, long-lasting solutions for their felt roofs.
Understanding the Structure of a Felt Roof
Before exploring repair options, it’s important to understand how felt roofing is constructed. Most commercial felt roofs consist of multiple layers of bitumen-based felt sheets bonded with hot asphalt or modern adhesives. These are finished with a protective mineral surface that shields the roof from UV rays and moisture.
Over time, exposure to sunlight, ponding water, and thermal movement can cause:
- Cracking and blistering.
- Loose seams and lifted edges.
- Water ingress at joints or around vents.
- Surface erosion or fading.
Each of these issues requires a tailored repair approach to ensure the roof remains watertight and functional.
When to Consider Repair Instead of Replacement
A full replacement isn’t always necessary when a felt roof begins to fail. If the underlying structure is sound, targeted repairs can extend its lifespan by several years.
Signs Repairs Are a Suitable Option
- Localised leaks rather than widespread damage.
- Intact insulation and decking beneath the felt.
- Minor cracks, splits, or blisters on the surface.
- Good drainage and no long-term standing water.
In many commercial settings, timely repairs minimise disruption and keep the roof performing efficiently without the need for extensive work.
Common Repair Options for Commercial Felt Roofs
Choosing the right repair method depends on the extent of the damage, the age of the roof, and environmental conditions. Below are the most effective techniques used by professionals such as Brierley Hill Roofing Repairs.
1. Felt Patch Repairs for Localised Damage
How It Works
Small tears, splits, or punctures can often be repaired using a patch system. The damaged section is cut out and replaced with a new piece of torch-on or cold-applied felt that overlaps the existing layers.
Advantages
- Quick and non-intrusive.
- Ideal for small areas of deterioration.
- Provides an immediate watertight seal.
This approach is particularly useful for damage caused by foot traffic, impact, or isolated weather wear.
2. Liquid Roof Coatings for Wider Protection
The Modern Overlay Solution
Liquid-applied membranes have become increasingly popular for refurbishing commercial felt roofs. Once applied, the liquid cures to form a seamless, fully bonded layer over the existing roof, eliminating joints where leaks typically occur.
Benefits of Liquid Coatings
- Suitable for complex roof shapes and details.
- UV-resistant and flexible.
- Extends the life of the existing roof system.
- Reduces the need for a full strip and re-lay.
At Brierley Hill Roofing Repairs, we recommend this solution for older roofs that have widespread surface cracking or ageing but are still structurally sound beneath.
3. Torch-On Felt Overlay Systems
Ideal for Ageing Felt Roofs
For roofs that are generally stable but showing signs of wear, a torch-on felt overlay can add new strength and waterproofing. This involves applying a new layer of bituminous felt over the existing surface using heat to create a secure bond.
Why It Works Well for Commercial Properties
- Creates a multi-layered, durable barrier.
- Suitable for roofs exposed to frequent foot traffic.
- Provides a cost-effective upgrade with minimal downtime.
Torch-on systems must be applied by skilled professionals to ensure safety and correct adhesion, which is why commercial clients rely on experts like Brierley Hill Roofing Repairs for this type of work.
4. Full Felt Replacement When Structural Damage Is Found
When Repairs Aren’t Enough
In cases where the felt layers are extensively worn, water has infiltrated the insulation, or decking is beginning to rot, full replacement is the only viable long-term option.
This process involves stripping away old materials, checking the integrity of the substrate, and installing a new multi-layer felt system built to modern standards.
Benefits of Full Replacement
- Restores the roof’s full structural and waterproofing integrity.
- Allows the addition of modern insulation for improved efficiency.
- Offers a clean, uniform finish ideal for large commercial buildings.
While more extensive, a replacement ensures years of reliable performance with minimal ongoing maintenance.
Key Factors That Influence the Right Repair Choice
No two felt roofs are identical, so the best solution depends on several variables.
Factors to Consider
- Age of the roof: Older roofs may require overlays or replacements.
- Extent of damage: Is the problem localised or widespread?
- Usage: Commercial roofs that support equipment or foot traffic need tougher materials.
- Weather exposure: Roofs facing harsh wind or sun may benefit from UV-resistant coatings.
- Drainage and slope: Proper water flow reduces future risk of leaks.
A professional inspection from Brierley Hill Roofing Repairs provides a detailed condition report and tailored recommendations for your specific roof.
Preventing Future Felt Roof Issues
Repairing your felt roof is only part of the solution — maintaining it properly ensures long-term protection and performance.
Maintenance Best Practices
- Schedule regular inspections to detect wear early.
- Clear debris from drains and outlets to prevent standing water.
- Avoid unnecessary foot traffic on roof surfaces.
- Recoat or reseal as needed to maintain waterproofing.
Consistent maintenance extends the lifespan of any felt roof and helps businesses avoid unnecessary downtime.
Why Choose Professional Roofing Expertise
Commercial roofing demands precision, experience, and safety-conscious workmanship. At Brierley Hill Roofing Repairs, our team brings extensive expertise in diagnosing, repairing, and maintaining felt roofs across Brierley Hill and the wider West Midlands.
We use high-quality materials and proven methods to ensure lasting results, whether carrying out patch repairs, overlays, or full replacements. Our goal is to deliver durable, weatherproof roofing that protects your property and operations year after year.
Conclusion
The best repair option for a commercial felt roof depends on its age, condition, and the extent of the damage. From simple patch repairs to liquid coatings and full overlays, there are reliable ways to restore your roof’s performance without unnecessary disruption.
Brierley Hill Roofing Repairs in Brierley Hill, West Midlands, provides expert advice and professional repair solutions tailored to commercial felt roofing systems. By addressing problems early and using the right materials, your roof can continue to deliver long-lasting protection for your business premises.
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