Choosing material is the first decision made when choosing your greenhouse cover. Material needs to be efficient in performance and cost! Polyethylene covers help protect plants from pests and weather. Pro-Tects’ custom sized reinforced greenhouse cover material is thick and flexible and make excellent growing conditions in single or double layer poly greenhouses. Polyethylene covers protect your plants from UV rays and give thermal protection while helping reduce excess condensation. We only do custom sized 9 and 12 mil reinforced. That’s right, any width and any length covers shipped to you in 3-4 days after order.

Clear 9 mil Reinforced Greenhouse Poly

Single Layer Versus Double Layer Greenhouse Covers

Deciding on single layer or double layer poly film depends on your situation. Single layer polyethylene is good for a short term greenhouse growing, such as a summer grow. Single layer poly is cheaper and easier to put up, but it’s vulnerable to wind and low insulation. A double lined polyethylene greenhouse is popular with more serious year round growers.

The air inflated double polyethylene covers are most popular due to its insulation properties and wind resistance. The air inflated poly creates space between the covers, 4 to 8 inches, which is ideal for retaining heat, keeping consistent temperatures and wind resistance.

Simply said, double greenhouse polyethylene covers create a comfortable environment for your plants in a multiple season greenhouse. The single layer poly greenhouse cover is great for a summer grow, but it does not hold heat well in the winter which creates high heating costs. The air inflated double layer poly greenhouse cover holds heat throughout the night and helps your greenhouse structure from damage in extreme weather conditions. It may be more expensive to get two poly layers but it’s worth it when growing happy and healthy plants.

Pro-Tect Plastics carries multiple options for reinforced greenhouse polyethylene covers. We also have amazing blackout options available in the same thicknesses and custom sizes! Our 9 Mil and 12 Mil reinforced polyethylene covers are light weight and stronger than the competitions. All our types of greenhouse plastic come in custom sized rolls and usually ship within 3 days!

Contact us today with help picking out the roll best for you!