Torch-On Membrane Roofing Auckland
We install and repair bitumen-based waterproofing systems for flat and low-slope roofs, for both residential and commercial properties across Auckland.
Why this system works
- A fully adhered membrane with no gaps, from heat-bonded application
- Longevity of 20 to 30 years with minimal upkeep
- Withstands UV exposure, heavy rain and temperature swings
- Engineered specifically for flat roofs where drainage is slow
The details
- Material
- Modified bitumen, applied with heat-welded bonding.
- Applications
- Flat roofs, low-slope roofs, decks and balconies, internal gutters, commercial buildings and residential homes.
- Lifespan
- 20 to 30 years
How we install it
Inspection and assessment
Surface preparation
Heat-bonded membrane application
Common repairs: blister patching, seam re-bonding, split fixes, deteriorated area treatment
Final inspection
Professional Torch-On Waterproofing for Flat and Low-Slope Roofs
Torch-on membranes provide a durable waterproofing solution widely used on flat and low-slope roofs. We install and repair torch-on membrane systems across Auckland, delivering reliable waterproof protection for residential and commercial buildings.
What Is Torch-On Membrane?
Torch-on membrane is a bitumen-based waterproofing system applied using heat to bond the membrane to the surface. Also known as torch-on membrane Auckland or modified bitumen roofing, this method creates a strong waterproof barrier designed to withstand harsh weather conditions.
We are specialist torch-on roofing Auckland contractors. Torch-on installations are a popular choice for both residential and commercial flat roofs. The heat-welded application ensures fully bonded seams, eliminating weak points where water could penetrate.
Where Torch-On Membranes Are Used
Torch-on systems are commonly installed on a variety of structures across Auckland:
Flat Roofs
The most common application for torch-on membrane Auckland properties, providing seamless waterproof coverage over large areas.
Low-Slope Roofs
Ideal for roofs with minimal pitch where water drainage is slower and a fully bonded membrane is essential.
Commercial Buildings
Large-scale torch-on waterproofing Auckland installations for offices, retail, warehouses and industrial buildings.
Residential Roofs
Durable protection for homes with flat or low-slope roof designs common across Auckland suburbs.
We also use torch-on bitumen below ground, as one of the systems in our tanking membrane work on basements and retaining walls, but the detailing and the pressure it has to resist are different from a roof, so it is quoted and specified separately.
Torch-On Membrane Repairs
In many cases, damaged torch-on membranes can be repaired through patching and reinforcing affected areas. Our team can assess the membrane condition and recommend the best solution.
Common torch-on repair work includes patching blisters, re-bonding lifted seams, fixing splits and addressing areas where the membrane has deteriorated. If the membrane is beyond repair, we can advise on a full replacement using torch-on or an alternative system like TPO membrane or Butynol.
Our Repair Process
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- Full inspection of the existing torch-on membrane
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- Identify damage points, blisters and weak seams
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- Targeted repairs using compatible bitumen materials
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- Final waterproof testing to ensure long-term protection
Need urgent repair? See our roof repairs Auckland page for more details.
Torch-On Roofing Cost in Auckland
The cost of torch-on waterproofing depends on several factors:
Roof Size
Larger roofs require more membrane and labour, directly affecting the total project cost.
Condition of Existing Surface
If the old membrane or substrate needs stripping, cleaning or repair before installation, costs increase.
Installation Complexity
Roofs with many penetrations, parapets, valleys or detailing require more time and expertise.
Access to the Roof
Difficult access (e.g. multi-storey buildings, steep sites) may require scaffolding or specialised equipment.
A site inspection allows us to provide an accurate quote. Contact us for a free assessment.
Frequently Asked Questions
How long does torch-on roofing last?
When professionally installed, torch-on membrane roofing typically lasts 15-25 years depending on exposure, maintenance and the quality of the installation. It is one of the most durable waterproofing systems for flat and low-slope roofs in Auckland.
Is torch-on suitable for flat roofs?
Yes. Torch-on membrane is specifically designed for flat and low-slope roofs. The heat-bonded application creates a seamless waterproof barrier that handles ponding water and heavy rain effectively.
Can torch-on membranes be repaired?
In many cases, yes. Localised damage such as splits, blisters or lifted seams can often be patched and reinforced without replacing the entire membrane. Our team assesses the condition and recommends the most cost-effective solution.
Ready to talk about torch-on membrane?
Get a free assessment and quote, no obligation.