The best materials for constructing a cold weather greenhouse provide durability, insulation, and light transmission while withstanding harsh conditions. Double-layered polycarbonate panels are ideal for glazing because they offer excellent insulation, retain heat, and allow sufficient sunlight to enter.
Glass provides great light penetration but requires strong framing and may need double glazing for better insulation. A sturdy frame made of materials like galvanized steel, aluminum, or treated wood ensures stability against snow and wind. Insulated north-facing walls, often built with materials like concrete, brick, or rigid foam panels, help retain heat and reduce energy loss.
