Painting Guides
8 guidesDeck oil is the best choice for horizontal surfaces. A guide to pressure-treated wood, preparation, and the right weather conditions.
Concrete foundations need breathable paint and careful moisture testing. A guide to preparation, product choice, and the right conditions.
Paint a wooden house exterior from start to finish: planning, washing, prep, priming, and topcoating. Cost estimate, timeline, and common mistakes.
How to remove old paint from a wooden house. Methods compared: scraping, sanding, heat gun, chemical strippers, and infrared. Lead paint identification and safe handling.
Surface preparation, manufacturer instructions, and weather planning — three factors that determine paint finish durability.
An old metal roof can last the life of the house with proper maintenance painting. A guide to rust removal, preparation, and painting in the right conditions.
Direct sunlight can raise surface temperature above +40 °C, risking blistering, peeling, and visible brush marks. Learn when and how to paint in hot weather.
Outdoor painting calendar for Finland: when each surface type becomes paintable, weather requirements by surface, and regional differences.
Frequently asked questions
- Can I paint outside today?
- It depends on the weather and the surface you're painting. Check real-time painting conditions for your location at maalataanko.fi.
- What is the minimum temperature for outdoor painting?
- For water-based paints, at least +5–10°C depending on the surface material. Oil-based paints tolerate slightly lower temperatures. The temperature must remain above the minimum throughout the drying period.
- What humidity level is too high for painting?
- Generally, above 80% relative humidity is too high. For metal surfaces the limit is stricter at 70%. High humidity slows drying and weakens adhesion.
- How long a rain-free period is needed after painting?
- Wood surfaces need 24 hours, concrete 24 hours, metal 12 hours, and decks 48 hours. Check the forecast for your location at maalataanko.fi.
- When is the best time to paint outdoors in Finland?
- The best painting season is June through August. In southern Finland the season lasts about 4 months (May–August), in Lapland about 2.5 months (June–mid-August).