Stop roof leaks with a tough liquid membrane coating

Guardian Seal is a liquid membrane solution that restores and protects your roof with a 10 year warranty.

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A refreshed roof you can feel confident in, with a 10-year waterproofing warranty.

Guardian Seal offers a comprehensive roofing solution that boasts a range of exceptional features. With the ability to match all existing roofing colors, our product seamlessly integrates into your aesthetic vision. The crack-resistant, flexible waterproofing membrane guarantees lasting durability, while the hard-wearing elastomeric, polyurethane acrylic, chemical-resistant roof coating further enhances protection. Prioritizing the environment, our water-based membrane is VOC-free (void of volatile organic compounds), and it incorporates state-of-the-art UV absorbers to shield against New Zealand's harsh ultraviolet conditions. Moreover, our solution includes high-performance anti-corrosion pigments that effectively halt substrate degradation.

Designed to adhere flawlessly to various roofing materials, the application process is swift and efficient, facilitated by licensed applicators. You can have peace of mind with our 10-year waterproofing warranty, underlining our commitment to quality. Don't wait; secure your Guardian Seal quote today and embark on a journey towards reliable and effective roofing solutions.

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Guardian Seal now, pay later.

We are excited to share that Guardian seal now offers interest-free payment plans, a special offer to Roofbuddy customers designed to help you secure the roof now and pay it off over time.

• 6 months interest free (no minimum repayments)
• 12 months interest free
• 18 months interest free

Find an interest-free payment plan that suits your needs. Payment plans are subject to approval, the application process will take between 5-8 minutes.

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Top reasons to choose Roofbuddy

Roof replacement is a big investment. Here's exactly how we'll make it easier.

10 year warranty
10 year warranty

With application from our licenced applicators, Guardian Seal liquid membrane comes with a full 10-year waterproofing warranty. This assures you your property will be protected for years to come. This warranty is also transferable to a new property owner, giving them a lot of confidence when purchasing.

Multi-coat System
Multi-coat System

Guardian Seal liquid membrane applications start with a chemical clean to kill off moss and mould, followed by a thorough water blast or soft wash to clean the entire surface. Roof restoration is used to patch any damage or leaks, and rust treatment is used on rusty areas to stop further degradation. From there, masking off and drop sheets are used to define the application area and mitigate any overspray. Two coats of self-priming liquid membrane coatings will follow and complete the coating system.

Made for New Zealand conditions
Made for New Zealand conditions

New Zealand is a tough environment, so Guardian Seal Pro is tougher! A crack-resistant, flexible, high-performance waterproofing membrane that's designed for professional use. This low-VOC, single-component elastomeric polyurethane membrane is specifically formulated for hand application and engineered to deliver superior UV resistance. Guardian Seal has state-of-the-art UV protection from New Zealand's harsh ultraviolet conditions, but don't worry. It's completely safe for drinking water with no volatile organic compounds (VOCs).

Enhanced & Protected Roof Finish
Looks incredible!

Choose a colour that complements your existing aesthetic or refresh your roof with a bold new choice. Guardian Seal keeps your roof looking enhanced for years to come. It resists cracking and fading, providing a long-lasting visual uplift to your property.

Guardian Seal logo

Learn more about Guardian Seal through our detailed guides.

For customers

Guardian Seal Guardian Seal Pro Colour Chart Warranty Sample Quality Assurance Sample Report

Technical guides

Guardian Seal Technical Guardian Seal Safety Data Guardian Seal Pro Technical Guardian Seal Pro Safety Data Rustbuster Technical

Guardian Seal FAQs

Learn more to find out if Guardian Seal is right for you

We've compiled answers to the most frequently asked questions about Guardian Seal.

Start your roofing request
Guardian Seal is a revolutionary new liquid membrane roof coating that works on many different roofing surfaces in various conditions; Guardian Seal has a large number of applications however if the underlying condition of the roof isn't sufficient to support the membrane a warranty cannot be provided on the application. We will discuss all the details with you and make a detailed assessment for the suitability of Guardian Seal for your property and provide these details as part of your quote.
Payment can be made via online bank transfer, credit card or using our interest free payment plans if you want to pay the investment off over time. We will discuss these options with you and you can let us know which financial solution best suits you.
The team at Guardian Seal specialise in real people. We answer the phone, visit your property and take the time to talk you through the entire process. Proceed with confidence knowing that you have the best information and an accurate quote at your fingertips. Receive professional advice from a knowledgeable roofing consultant to assist you through the process.
Guardian Seal is a high-performance polyurethane acrylic water-based membrane solution that is completely VOC free (NO volatile organic compounds). It's completely safe to walk on and consume rainwater collected from a roof after the application of Guardian Seal.
Guardian Seal and Guardian Seal Pro have different warranties depending on the circumstances that can vary depending on the application. Provided the underlying roof condition is sufficient to support the membrane typically a 2 coat application will carry a warranty of of 10 years or an optional 3 coat application that can be warranted for up to 15 years is possible. We will clarify the warranty on a case by case basis and include this information in your quote for your reference.
Guardian Seal liquid membrane applications start with a chemical clean to kill off moss and mold, then a thorough waterblast to clean the entire surface. From there patching, masking off and drop sheets are used to prepare the surface & a rust buster treatment is applied to stop any further degradation of the roofing material. Two coats of self-priming liquid membrane coatings to follow and complete the coating system. This process typically takes between 2-4 days end to end and is weather dependent.
Scaffolding is not often required for Guardian Seal installations under 25 degrees however health and safety compliance is on a job by job basis and we will discuss this with you in person and include the requirements in your quote to ensure safety protocols are upheld across all applications and your quoted price is all inclusive of everything needed to get the job done.
Guardian Seal can be used to encapsulate asbestos roofing locking in the toxic materials and making it safer. We can't water blast the roof first however moss / mould killer is applied first then Guardian Seal can be applied over the roof, sealing in the asbestos and giving all the normal aesthetic, waterproofing and warranty benefits along with encapsulating the asbestos.
Guardian Seal is powered by Roofbuddy; so we can offer advice and solutions across all roofing disciplines. From re-roofing, repairs, condition reporting, structural, asbestos removal, solar and anything else related to roofs! We provide impartial advice and quotes across all roofing disciplines.