Infinity Painters

Roof Painting

A roof coating that's actually adhered to a clean, treated surface, matched to a painter who works at height safely.

Roof Painting in progress on a New Zealand property

Roof painting, sometimes called roof restoration, is a different job to walls and trim. It starts with a proper water blast to strip off lichen, moss, and chalking paint, followed by rust treatment on any exposed metal fastenings or corroded sections before a primer and topcoat go on. Skip the water blast or the rust treatment and the new coating peels within a season or two, no matter how good the paint itself is.

Most New Zealand roofs are long-run steel, often sold under the Colorsteel brand, along with concrete tile and clay tile roofs on older homes. Each substrate takes a different coating system: steel roofs generally need a rust-inhibiting primer before a specialist roof membrane paint, while concrete tile often needs a sealer first to stop the paint soaking straight into a porous surface. A roof painter who knows the difference will scope the job to your actual roof, not a generic square-metre rate.

Height and pitch drive both safety and price. Anything with a steep pitch, or height above about three metres, generally needs proper edge protection or scaffolding under New Zealand's health and safety rules, rather than someone balancing on a ladder against the gutter. Tell us your roof area, material, and how accessible it is, and we'll match you with a local roof painter set up to do the job safely.

What's typically included

  • Full water blast to remove moss, lichen, chalking, and loose paint before coating
  • Rust treatment on exposed fixings, flashings, and corroded steel sections
  • Ridge capping, valley, and flashing repairs flagged before painting, not ignored
  • Substrate-appropriate primer and topcoat system for steel, concrete tile, or clay tile
  • Safe access via scaffolding, roof anchors, or edge protection where the pitch or height requires it
  • A final check for missed sections once the coating has cured

Frequently asked questions

Is roof painting the same as a roof clean?

No. A roof clean or water blast on its own removes moss and grime but doesn't protect the surface long term. Roof painting includes that clean as a first step, then adds rust treatment and a full coating system on top, which is what actually extends the roof's life rather than just tidying its appearance for a season.

How long does a roof coating usually last?

It varies with the coating system, the roof's condition beforehand, and local weather exposure, particularly salt air near the coast. Your matched painter can talk through realistic expectations for your specific roof and coating choice rather than a generic number that doesn't account for your site.

Can you paint over rust, or does it need treating first?

Rust needs treating first. Painting straight over rust traps moisture underneath and the coating fails quickly, often within months. A proper job removes loose rust and applies a rust-inhibiting primer to the affected areas before the topcoat goes on.

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