Fibrolite / Asbestos Cement Sheet Roof Coating
No matter what style of roof you have the process is similar.
Fibrolite and asbestos cement sheet roofing were widely used throughout New Zealand for decades, and a great many of these roofs are still in service today. While the material is structurally durable, it becomes porous and increasingly brittle with age, allowing moisture to soak in and encouraging moss and lichen growth across the surface.
This ageing process brings an added concern: disturbing or abrading the sheet material can release fibres, which is why any work on these roofs needs to be handled carefully and responsibly. Rather than resorting to costly and disruptive removal, sealing and encapsulating the existing roof is often the safer, more practical option for roofs that are otherwise sound.
Our Fibrolite / Asbestos Cement Roof Coating Process
Low-Disturbance Cleaning
We use a low-pressure, non-abrasive clean to remove moss, lichen, and surface grime without disturbing or abrading the sheet material. This gentler approach is essential for safely preparing an asbestos cement surface for coating.
Roof Inspection
Once clean, the roof is carefully inspected for cracked, deteriorated, or crumbling sheets that may need attention before coating. Identifying these areas early prevents them from compromising the seal of the new coating once applied.
Encapsulating Primer
A specialist encapsulating primer is applied to bind loose fibres and seal the porous surface of the sheeting. This step locks down the existing material and creates a stable, uniform base for the liquid membrane coating.
Membrane Coating Application
The liquid membrane coating is applied evenly across the full roof to fully seal and waterproof the surface, leaving a smooth, protective finish that resists further moisture absorption, moss regrowth, and UV degradation for years to come.
Signs Your Fibrolite / Asbestos Cement Roof Needs Attention
- Visible moss, lichen, or algae build-up across the sheets
- Porous, chalky, or flaking surface texture
- Hairline cracking along sheet edges or fixing points
- Water staining or damp patches appearing in the ceiling space
- Sheets that feel soft or crumbly at the edges
Why Choose Us for Fibrolite / Asbestos Cement Roof Coating
- Encapsulates and seals the surface without disturbing the material
- Stops water absorption that leads to sheet degradation and leaks
- Inhibits moss, lichen, and mould regrowth
- A responsible, low-risk alternative to costly asbestos removal
- Improves the appearance and lifespan of an ageing roof
- Strict safe-work practices followed on every project
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.