Frequently Asked Questions
Find answers to some common questions about Liquid Membrane Roof Coatings
What is a liquid membrane roof coating?
A liquid membrane roof coating is a waterproof barrier applied as a liquid that cures into a seamless, flexible membrane. It protects your roof from water, UV rays, and harsh weather conditions. It is ideal for flat roofs, low-slope roofs, and aging surfaces.
How does a liquid membrane coating work?
Once applied, the liquid membrane forms a rubber-like, fully bonded layer over your existing roof. This seals cracks, prevents leaks, and extends the lifespan of your roof without needing a full replacement.
Is liquid membrane roof coating suitable for all roof types?
Liquid membrane coatings are ideal for many roof types, including:
- Concrete roofs
- Metal roofs (including long-run iron)
- Decramastic tile roofs
- Bitumen or torch-on roofs
- Asbestos roofs
- Existing membrane or waterproofing systems
Our team can assess your roof and recommend the best solution for NZ conditions.
How long does a liquid membrane roof coating last?
With proper preparation and professional application, a liquid membrane coating can last 10 to 20 years, depending on environmental conditions and roof type.
What are the benefits of liquid membrane roof coatings in New Zealand?
Waterproofing
Keeps your roof watertight, especially in high rainfall areas.
UV Protection
Shields against harsh NZ sun.
Cost-Effective
Avoids the need for full roof replacement.
Flexible & Durable
Adapts to NZ’s temperature changes without cracking.
Eco-Friendly
Reduces waste compared to tearing off old roofs.
How is liquid membrane different from traditional roof painting?
Roof painting improves the appearance of your roof and offers some protection, but a liquid membrane is a much thicker, flexible, and fully waterproof system designed specifically for long-term leak prevention and protection.
Can I apply liquid membrane coating myself?
While DIY kits exist, professional application ensures the membrane is applied evenly and effectively, especially on complex roof shapes or where repairs are needed. Our trained team ensures proper surface preparation, crack filling, and even application for maximum durability.
How much does a liquid membrane roof coating cost in NZ?
Costs vary based on roof size, condition, and complexity.
Generally, a liquid membrane roof coating will cost approximately 1/3 of a reroof. We offer free quotes and can assess your roof for the most accurate pricing.
How long does it take to apply a liquid membrane coating?
Most jobs are completed in 1 to 3 days, depending on roof size and weather. Drying times can vary, but we use fast-curing systems when possible to reduce delays.
Do you offer warranties on your liquid membrane coatings?
Yes. At Affordable Roof Coating, we offer warranties of 10 years or more on our liquid membrane systems, depending on the product and conditions.
Can liquid membrane coatings be used to fix roof leaks?
Yes – they are especially effective at sealing leaks and preventing future water ingress. We recommend professional inspection to determine the best approach for leak repairs.
Is this solution environmentally friendly?
Yes. By coating rather than replacing, we reduce landfill waste. Many modern membrane systems are low-VOC (volatile organic compounds), safer for the environment and your home.
Can you coat or encapsulate asbestos roofing with a liquid membrane?
Yes, we can. At Affordable Roof Coating, we offer safe encapsulation of asbestos roofing using liquid membrane systems. This process seals and contains the asbestos fibres, preventing them from becoming airborne and eliminating the need for expensive asbestos removal in many cases.
Our encapsulation service:
- Is compliant with NZ health and safety regulations
- Minimises disturbance of asbestos materials
- Adds waterproofing and UV protection
- Extends the life of the existing roof safely
Important
We follow strict safety protocols during preparation and application. If your roof is showing signs of deterioration, we’ll assess whether coating or full removal is the safest option.
Still have questions?
If you’d like more info or a free quote for your roof, contact the Affordable Roof Coating team today. We serve New Zealand Nationwide.
- Northland
- Auckland
- Rodney District
- Waikato
- Bay of Plenty
- Wellington
- Christchurch
- Canterbury
- Otago
- Southland
Ready to protect your roof with a Liquid Membrane Coating?
Don’t wait until small leaks become big problems. At Affordable Roof Coating, we offer expert roof inspections, high-quality liquid membrane systems, and professional application — all at competitive prices across New Zealand.
Call us today on 022 453 9109 or send us a message using the form for a free quote.
Let’s extend the life of your roof — the affordable way.
Why choose ARC?
Peace of mind, from the quote to the final coat, we understand that your property is likely your biggest investment — and it deserves to be looked after properly.
At Affordable Roof Coating, we treat every roof as if it were our own, with the care, respect, and attention to detail you should expect from true professionals. We’ve seen what happens when corners are cut: leaks, damage, and disappointment. That’s why we’re committed to doing things the right way — no shortcuts, no surprises, just honest workmanship that lasts.
Here’s what you can expect when you work with us:
- Thorough Roof Inspection
Before any work begins, we inspect your roof to ensure it’s suitable for our coating options. If repairs are needed, we’ll let you know straight away — we believe in honesty, not cover-ups. - Proper Preparation
Every roof is pressure cleaned and prepped to the highest standard. We take the time to do it right, because a lasting finish depends on proper prep work. - Ensuring Your Roof is Protected
From replacing cracked tiles and fixing flashing, to repairing or swapping out damaged metal sheets or clear roof lights — we’ve got you covered. We make sure your roof is sound before any coating goes on, so your investment is protected long-term. - Reliable, Local Service
You deal directly with us — no sales reps or middlemen. We’re hands-on, responsive, and treat your property with care and respect. - Guaranteed Workmanship
We back every job with a 5-year workmanship warranty, so you can feel secure long after we’ve finished.
