KiwiSeal Roof Coating Systems: The Smarter Alternative to Reroofing in New Zealand

KiwiSeal Roof Coating Systems: The Smarter Alternative to Reroofing in New Zealand

Kiwiseal offers a high-performance waterproof membrane that restores existing roofs for a fraction of the cost of replacement. They combine mechanical repairs and their liquid membrane system to deliver long-term protection.

Core Advantages of KiwiSeal

• Restoring with KiwiSeal typically costs about one-third the price of a full reroof.

• The product is non-VOC and environmentally friendly.

• KiwiSeal is backed by a 10-year warranty.

• The formulation is designed for New Zealand’s climate and is ISO certified.

• KiwiSeal’s membrane is thicker and more durable compared to typical alternatives.

• Their “Maxx” product allows for year-round application, including patch repairs in winter.

Roof Types Suitable for KiwiSeal

Kiwiseal supports restoration on a wide variety of roofing substrates and structures:

• Iron and steel roofing

• Concrete tiles

• Metal tiles

• Butynol membranes

• Internal gutters

• Commercial roof systems

KiwiSeal’s Product Layers & Top Coat Details

Kiwiseal uses a two-coat system. The top layer is Kiwiseal Top Coat, applied over the base (Kiwiseal Ultra).

Kiwiseal Top Coat has the following attributes:

• It is a water-based, tough, elastomeric coating.

• It adheres to surfaces such as painted surfaces, concrete, timber, membranes, and sealants with minimal preparation.

• The film produced is hard, semi-gloss, and resistant to yellowing and crazing (fine cracking).

• It contains advanced UV absorbers and anti-corrosion pigments to protect against sunlight and environmental damage.

• Technical highlights include:
  • Elongation of 250–320 %
  • Application coverage around 1 L per 10 m² (depending on surface)
  • Quick drying characteristic (though Kiwiseal does not publish an exact cure time)

Durability, Resistance & Environmental Safety

Kiwiseal emphasises several performance features as part of its standard offering:

• High UV resistance that prevents roof degradation under sunlight.

• Flexible, crack-resistant membrane with elongation that allows for expansion and contraction without splitting.

• Chemical and heat resistance, withstanding high temperatures up to 150 °C and exposure to pollutants and cleaning chemicals.

• Anti-fungal, anti-mould, and anti-lichen properties to slow growth of moss or lichen in damp environments.

• Safe for potable water collection, meaning the coating is certified to not leach harmful substances into collected rainwater.

Application Approach & Process

Kiwiseal describes a structured approach to restoration:

1. Request an initial estimate via their system.

2. Confirm scope (perhaps with a site visit) and finalise the plan.

3. Approve the tailored restoration plan.

During application, minimal surface preparation is required for many substrates. KiwiSeal can be applied by brush, roller, or spray.

They also emphasise fast cycle times: projects typically take only a few days, minimising disruption.

Client Base, Scale & Coverage

• KiwiSeal has over 1,214 happy clients to date.

• They cover many regions within New Zealand: Northland, Auckland (various zones), Waikato, Bay of Plenty, Wellington, Taranaki, Hawke’s Bay, and Upper and Lower South Island.

• Their target clients include homeowners, commercial property owners, property managers, schools, industrial facilities, government buildings, and rural properties.

Warranty, Value & Market Position

• KiwiSeal markets its restoration service as significantly more affordable than a full reroof—approximately one-third the cost.

• It claims to be a sustainable alternative: restoring instead of replacing to reduce waste.

• The 10-year warranty is a core selling point.