These films are made from a single layer of plastic, typically polyethylene. Single-layer films are cost-effective and provide basic protection from the elements. However, they may not offer as much insulation as multi-layer films.

Double-Layer Greenhouse Film: This type of greenhouse film consists of two layers of plastic, which helps to improve insulation and thermal efficiency. The space between the two layers acts as an additional barrier, trapping more heat inside the greenhouse, making it ideal for colder climates.