Torch on Systems
Torch-On Waterproofing Systems in Gauteng & Cape Town
Prominent Roofing provides professional torch-on waterproofing installation across Gauteng and the Western Cape. Our experienced roofing contractors install high-performance APP-modified bitumen membrane systems designed for flat roofs, commercial buildings, and high-exposure environments.
Torch-on waterproofing offers exceptional durability, UV resistance, and long-term leak protection when correctly installed by trained professionals.
Request a Torch-On Installation Assessment
Our team will inspect your roof structure, assess substrate condition, and recommend the correct torch-on membrane system for long-term protection.
What Is a Torch-On Waterproofing System?
Torch-on waterproofing is a heat-fused bitumen membrane system applied to flat or low-pitched roofs. The membrane is bonded to the surface using controlled heat application, creating a seamless, waterproof barrier that prevents water penetration.
This system is commonly used for:
- Flat concrete roofs
- Commercial buildings
- Industrial facilities
- Balconies and roof slabs
- Parapet walls
When installed correctly, torch-on membranes provide reliable waterproofing performance for decades.
Thermoflex APP-Modified Torch-On Membrane
We install 3mm and 4mm Thermoflex torch-on systems supplied by Darachem Industrial Supplies (STT).
Thermoflex has been developed specifically for South African climate conditions and has been in production since 1982. The product has undergone extensive evaluation, including collaboration with the CSIR.
Technical Specifications:
- 180g heat-set double-reinforced polyester geofabric
- A.B.S.-certified bitumen core
- APP (atactic polypropylene) modification for flexibility
- UV-resistant surface layer
- Silica-treated top layer for improved coating adhesion
- Heat-sensitive polymer backing for secure fusion
Over three million square meters of Thermoflex membrane have been installed across Africa.
Why Choose Torch-On Waterproofing?
Professionally installed torch-on systems provide:
- Long-term leak prevention
- High UV resistance
- Structural flexibility
- Seamless membrane coverage
- Excellent performance in highveld and coastal climates
- Life expectancy exceeding 20 years (with maintenance)
To extend lifespan, a silver aluminium protective coating is recommended to shield the membrane from UV degradation.
Professional Torch-On Installation Process
- Roof inspection and moisture assessment
- Surface preparation and cleaning
- Primer application (where required)
- Heat-fused membrane installation
- Seam sealing and detailing
- Quality control inspection
Proper installation is critical, incorrect heat application or poor detailing can result in premature failure. Our trained professionals ensure precise application on every project.
What Our Clients Say
Torch-On Waterproofing Contractors Near You
Prominent Roofing installs torch-on waterproofing systems in:
Gauteng:
Alberton, Johannesburg, Pretoria and some East Rand areas
Contact Our Gauteng Torch-on Waterproofing Team
Western Cape:
Cape Town, Northern Suburbs and Winelands areas
Contact Our Cape Town Torch-on Waterproofing Team
Contact our local branch today to schedule an inspection.