Roof painting is an affordable way to renew your roof's appearance and protect it from weather exposure. Professional roof painting extends the roof's lifespan and increases the property's value. Kotikatto.fi performs roof paintings and coatings professionally throughout Finland.
When should a roof be painted?
A metal roof typically needs painting every 15–25 years. Signs that painting is needed include fading of the coating, peeling paint, initial rust spots, and deterioration of the roof's overall appearance. If the roof is structurally sound, painting is a significantly more affordable option than roof replacement.
Roof painting steps
A high-quality roof painting begins with thorough washing, where moss, dirt, and loose paint are removed. Washing is done with a pressure washer, after which the roof is allowed to dry completely (1–2 days). A bonding primer is applied to the dry surface, followed by 1–2 coats of high-quality topcoat applied by spray painting.
Types of roof paints
| Paint type | Durability | Price | Suitability |
|---|---|---|---|
| Acrylic paint | 10–12 years | Most common — flexible and UV-resistant | Suitability |
| Polyurethane paint | 12–15 years | Demanding conditions | Most common — flexible and UV-resistant |
| Rubber coating | 15–20 years | Old metal roofs | Demanding conditions |
Roof painting price
Roof painting typically costs 15–30 €/m². Painting a detached house roof (150 m²) is therefore 2,250–4,500 €. For comparison, roof replacement costs 50–70 €/m². Painting is thus a significantly more affordable option if the roof is structurally sound.
Painting or roof replacement?
Painting is sufficient when the roof is structurally sound and does not leak. If the roof leaks, the underlayment is damaged, or the roofing material has reached the end of its lifespan, replacement is the more sensible option. A condition assessment reveals which is the right solution.
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Content reviewed and verified
Updated: April 2026
