Torch-On/Butynol Membrane Roof Coating
No matter what style of roof you have the process is similar.
Torch-on and Butynol membranes are a popular choice for flat and low-slope roofs across New Zealand, valued for the strong waterproofing performance they offer when first installed. Their fully bonded, seamless application makes them well suited to the flat roof lines found on many homes and commercial buildings, providing reliable protection against our unpredictable weather.
Like any bitumen or synthetic rubber membrane, however, Torch-On and Butynol roofs don’t stay in perfect condition forever. Years of UV exposure, ponding water, and constant expansion and contraction gradually take their toll, leaving the surface brittle, blistered, or prone to splitting at the seams. Once these small weaknesses appear, it’s only a matter of time before water finds its way through. Recoating at the right time protects your investment and avoids the cost of a full membrane replacement.
Our Torch-On / Butynol Roof Coating Process
Roof Inspection
We start with a full walk-over inspection of the roof, checking every seam, upstand, and low point for signs of ponding, blistering, or splitting. This helps us understand exactly what’s causing any current leaks and identify areas that are likely to fail if left untreated, so the repair and coating plan is tailored to your roof rather than a one-size-fits-all approach.
Cleaning and Preparation
The full roof surface is thoroughly cleaned to remove moss, dirt, grit, and any loose or flaking material. Proper cleaning is essential for a membrane coating to bond correctly, as any residue left on the surface can prevent adhesion and lead to premature failure of the new coating.
Repairs
Before any coating goes down, we repair splits, blisters, and open seams using appropriate patching methods for bitumen and synthetic membranes. Addressing these problem areas first means the coating is applied over a sound, stable surface rather than simply masking existing damage.
Priming
Where the membrane surface requires it, we apply a compatible primer to improve adhesion between the existing material and the new liquid coating. This step is particularly important on older, chalkier membranes where the surface has become porous over time.
Membrane Coating Application
The liquid membrane coating is applied in a controlled, even layer across the entire roof, with additional reinforcing coats built up over seams, upstands, and penetrations where movement and wear are greatest. The result is a continuous, flexible, waterproof membrane that protects the roof for years to come.
Signs Your Torch-On / Butynol Roof Needs Attention
- Bubbling or blistering across the membrane surface
- Cracking or splitting, particularly around seams and upstands
- Ponding water that takes more than 48 hours to drain away
- Chalky, faded surface texture caused by UV breakdown
- Damp patches or staining appearing on ceilings below the roof
Why Choose Us for Torch-On / Butynol Roof Coating
- Seals seams and pinholes that are common failure points on aged membranes
- Reflective coating options reduce heat build-up and slow future degradation
- Flexible finish moves with the roof through expansion and contraction
- A fraction of the cost of full membrane replacement
- Extends the working life of your existing roof by years
Advantages
Enhanced Durability
Our liquid membrane coating extends the lifespan of your roof by offering superior protection against the elements.
Aesthetic Appeal
Available in various colors, our coating enhances your roof's look while maintaining its protective qualities.
Cost-Effectiveness
Investing in our roof coating reduces the need for frequent repairs, saving you money in the long run.