Hours to 2 days.
Wood is stacked inside a transparent-roofed chamber. Sun heats the air; vents allow hot, moist air to escape. methods of wood seasoning
1–3 months.
Low cost, no energy input, minimal residual stress. Disadvantages: Slow, final MC limited by humidity (cannot go below ~12–15% in humid areas), risk of insect/fungal attack. 2. Solar Drying (Greenhouse Drying) A hybrid of air and kiln seasoning using solar energy. Hours to 2 days