Common Torch-On Roofing Problems and How to Fix Them
Torch-on roofing is a popular choice for flat and low-slope roofs due to its durability and waterproofing abilities. However, like any roofing system, it can develop issues over time. Below are some common problems with torch-on roofing and how to fix them effectively.
1. Blistering and Bubbling
Cause
Blisters and bubbles form when moisture gets trapped between the layers of the roofing material. This usually happens due to improper installation, trapped air, or inadequate surface preparation. Detecting issues like blisters and bubbling early can prevent costly repairs. Learn how to identify early signs of roof damage before they worsen.
Professional Fix
A roofing specialist will first conduct a thorough inspection to assess the extent of the damage. If blisters are large or widespread, the affected section will be carefully cut out using professional-grade tools. After ensuring the area is completely dry, a new piece of modified bitumen membrane will be torched down to seamlessly integrate with the existing roof, eliminating any risk of air pockets or weak adhesion.
2. Cracking and Splitting
Cause
Extreme temperature fluctuations cause the roofing material to expand and contract, leading to cracks and splits over time. Discover more why temperature fluctuations can shorten a roof’s lifespan and how to protect your roof.
Professional Fix
A roofing contractor will remove any dirt or debris from the affected area before applying a high-quality asphalt-based sealant for minor cracks. For more severe splits, a reinforced torch-on membrane patch will be applied, ensuring it bonds properly using controlled heat application. Edges will be sealed with additional layers of modified bitumen to prevent further deterioration.
3. Poor Drainage and Ponding Water
Cause
Flat and low-slope roofs often experience drainage issues due to improper installation, clogged drains, or structural deficiencies, resulting in standing water that accelerates roof degradation. Heavy rain can exacerbate drainage issues, leading to standing water. Implement these roof protection tips against heavy rain to safeguard your roofing system.
Professional Fix
A roofing expert will first clean out any debris from drainage systems to restore proper water flow. If pooling persists, the contractor may recommend re-sloping the roof by adding tapered insulation to improve runoff. Additionally, a waterproof coating may be applied to enhance resistance to moisture penetration.
4. Loose Seams and Poor Adhesion
Cause
Improper heat application during installation or natural wear over time can cause the seams of the torch-on membrane to lift or separate, making the roof vulnerable to leaks.
Professional Fix
A professional roofer will reheat the loose seams using a controlled torching technique, ensuring they adhere properly without damaging the surrounding material. For additional reinforcement, roofing cement or an adhesive primer may be applied along the edges. If the issue is extensive, a full reinstallation of the affected area may be necessary.
5. Moss and Algae Growth
Cause
Damp and shaded areas promote the growth of moss and algae, which can degrade the roofing membrane over time. Unchecked moss and algae growth can significantly reduce the lifespan of your roof. Understand how moss and algae can damage your roof and the best prevention methods.
Professional Fix
Roofing professionals will use industry-approved cleaning solutions to safely remove moss and algae without damaging the torch-on membrane. In some cases, low-pressure washing may be used. Preventative measures, such as improving ventilation and installing roof coatings that resist biological growth, may also be recommended.
6. Burn Marks from Torch Application
Cause
Overheating the roofing material during installation can cause burn marks, weakening the membrane and compromising its integrity. Incorrect installation techniques, including excessive heat application, can weaken roofing materials. Here are five mistakes to avoid that can cause roof leaks.
Professional Fix
A trained roofing technician will assess the extent of the burn damage. Minor surface burns can be treated with a protective coating to reinforce the material. If the damage is severe, the affected section will be carefully cut out and replaced with a new torch-on membrane, ensuring the surrounding areas are properly bonded.
7. Leaks and Water Infiltration
Cause
Leaks commonly result from aging, poor installation, or external damage such as tree branches or excessive foot traffic on the roof. Finding the source of a roof leak can be more challenging than it seems. Discover why locating a roof leak on your own is difficult and when to call a professional.
Professional Fix
A roofing contractor will conduct a detailed inspection to identify the source of the leak. Flashing, seams, and drainage points will be carefully examined. Once the weak points are identified, a torch-on patch will be applied using precise heating techniques. Additional layers of protective coating may be used to reinforce the repaired section and prevent future leaks.
Hiring Vantage Roofing
If you’re experiencing any of these issues, hiring a professional is the best course of action. Hiring a reputable roofing contractor is crucial for quality work. Before making a decision, learn how to compare re-roof estimates to ensure you’re getting the best value. Vantage Roofing is a trusted expert in torch-on roofing repair and installation, providing top-notch service and durable roofing solutions. Our team of experienced and certified professionals ensures that every project is completed with precision and efficiency.
Using high-quality materials designed to withstand harsh weather conditions, Vantage Roofing guarantees long-lasting protection for your home or business. With affordable pricing, clear estimates, and a commitment to excellence, Vantage Roofing is the ideal choice for maintaining and enhancing your torch-on roof.
Conclusion
By understanding and addressing these common torch-on roofing problems, you can maintain a durable and leak-free roof for years to come. Regular maintenance and timely repairs not only protect your investment but also enhance the overall efficiency and lifespan of your roofing system. Ensuring your roof remains in peak condition will save you money in the long run and provide peace of mind against unexpected weather damage.
If you’re experiencing any of these common torch-on roofing problems, it’s essential to act quickly to prevent further damage. At Vantage Roofing, we provide expert roofing services across the Lower Mainland. Whether you need repairs, maintenance, or a full roof replacement, our team of certified professionals is ready to help. We proudly serve homeowners and businesses who are looking for Burnaby Roofers, New Westminster Roofers, Coquitlam Roofers, Port Coquitlam Roofers, Port Moody Roofers, Delta Roofers, Ladner Roofers, Vancouver Roofers, North Vancouver Roofers, West Vancouver Roofers, Richmond Roofers, Surrey Roofers, White Rock Roofers, Maple Ridge Roofers, Pitt Meadows Roofers, or Langley Roofers. Contact us today for a free consultation and let us ensure your torch-on roof remains durable and leak-free for years to come!