Torch Down Roofing in Monroe, LA: What You Need to Know
By WeatherPro Roofing | Commercial & Residential Roofing Experts in Northeast Louisiana
When it comes to flat or low-slope roofs, one of the most durable and long-lasting options available is torch down roofing. At WeatherPro Roofing, we’ve installed, repaired, and replaced torch down roofing systems across Monroe, West Monroe, and surrounding Northeast Louisiana areas for both residential and commercial clients.
Torch down roofing, also called “torch on” roofing, is named after the installation process that uses a propane torch to apply modified bitumen sheets to the roof. This method creates a seamless, waterproof membrane ideal for buildings that require strength, flexibility, and excellent weather resistance.
What Is Torch Down Roofing?
Torch down roofing involves rolling out layers of modified bitumen (an asphalt-based material with added rubber or plastic polymers) and using a torch to heat and bond the materials to the roof surface. Once heated to the correct temperature, the layers form a watertight seal.
The unique makeup of modified bitumen allows this roofing system to expand and contract with temperature changes — an important feature for Louisiana’s hot summers and occasional cold snaps.
Torch Down Roofing Materials
Torch down membranes are made by blending bitumen with one of two polymers:
- APP (Atactic Polypropylene): A plastic-based polymer that increases UV resistance and flexibility during hot temperatures.
- SBS (Styrene Butadiene Styrene): A rubber-based polymer that offers greater flexibility in colder conditions and a lower melting point.
These membranes are reinforced with a base material like fiberglass or polyester, and often finished with protective granules for added UV protection, color options, and fire resistance.
Types of Torch Down Roofing Systems
At WeatherPro Roofing, we install both:
- Two-layer torch down systems – Includes a base sheet and a smooth cap sheet, offering excellent waterproof protection.
- Three-layer torch down systems – Includes a base sheet, smooth cap sheet, and a granulated cap sheet for extended durability, UV resistance, and fire performance.
We’ll help you determine which system is best based on your building’s needs and budget.
Torch Down Roof System Components
- Insulation – Retains heating and cooling energy; mechanically attached or adhered based on structure type.
- Vapor Barrier – Prevents moisture buildup between roof layers.
- Overlay Board – Levels and supports the membrane to prevent “ponding” water.
- Base Sheet – The first layer of modified bitumen, applied via torch, mop, or adhesive.
- Cap Sheet – Heated and pressed to the base layer to form a seamless seal.
- Granule Cap Sheet (optional) – Provides added protection and aesthetics in 3-layer systems.
- Flashing – Self-adhered modified bitumen and metal flashing are applied to vents and other roof penetrations for leak protection.
Torch Down vs. Hot Mopped Roofing
Torch down roofing and hot mopped (BUR) systems both serve flat roofs but differ in application and durability.
| Feature | Torch Down | Hot Mopped (BUR) |
|---|---|---|
| Installation | Propane torch + bitumen sheets | Liquid asphalt & mop |
| Flexibility | Excellent thermal movement | Moderate |
| UV Resistance | High (with cap sheet) | Moderate |
| Puncture Resistance | High | Lower |
| Cost | Slightly higher upfront | Lower initial cost |
| Odor/Fumes | Lower | Higher |
At WeatherPro Roofing, we’ll guide you through choosing the best system for your commercial or low-slope residential roof.
Pros of Torch Down Roofing
✅ Excellent waterproofing – Ideal for rainy climates and flat roofs prone to standing water
✅ Durable in all climates – Expands in heat and contracts in cold without cracking
✅ Energy-efficient – Reflective cap sheets help lower cooling costs in Monroe’s heat
✅ UV & fire resistant – Especially with granulated cap sheets
✅ Easy to repair – Damaged areas can be patched using the same torch method
✅ Long-lasting – Lifespan of 15–20 years or more with proper installation and care
Considerations & Safety of Torch Down Roofs
While torch down roofing is highly effective, it requires skilled installation. Because it involves open flames, only trained and insured professionals should perform torch down work.
At WeatherPro Roofing, our crew is CERTA-certified (Certified Roofing Torch Applicator) and fully insured. We follow strict safety protocols to ensure every installation is performed safely and up to code.
Other considerations:
- Must be installed in dry conditions
- Slightly higher installation cost due to labor and equipment
- May have more seams compared to some systems (though easily managed)
Ideal Applications for Torch Down Roofing
Torch down systems are best for:
- Low-slope or slightly pitched roofs (¼:12 to 1:12 pitch)
- Commercial buildings with HVAC units, vents, and multiple penetrations
- Areas with snow or heavy rain (Louisiana’s storm seasons!)
- Property owners seeking long-term waterproofing without a full roof replacement
Torch Down Roofing FAQs
Q: How long does torch down roofing last?
A: With proper installation and maintenance, 15–20 years or more.
Q: Can torch down roofs be repaired?
A: Yes! Damaged areas can be patched with heat-sealed bitumen for a strong seal.
Q: Is torch down roofing good for Monroe, LA?
A: Absolutely. It handles heat, humidity, and storms — making it a great fit for local weather.
Q: Can you install torch down roofing in winter?
A: Yes, but precautions are needed. Dry conditions and experienced roofers are essential.
Q: How much does a torch down roof cost?
A: Prices vary, but typically range from $4 to $8 per sq. ft. Contact us for a free quote.
Get a Free Quote for Torch Down Roofing in Monroe, LA
Whether you’re replacing an aging flat roof or building new construction, WeatherPro Roofing offers expert torch down roofing services in Monroe and surrounding areas. We are licensed, insured, and experienced in both residential and commercial flat roofing systems.
📞 Call today at 318-450-4271