Ultra-strong 10-year, multilayered film with no need for inflation.
It's like bubble wrap for your greenhouse! Three layers of transparent polyethylene film with 1,000 bubbles per square meter serve as energy-saving insulation. With an amazing R-Value of 1.7, it allows your greenhouse to keep between 60-95% percent of its heat overnight, significantly reducing energy costs. Used as roofing or walls, it is waterproof, air tight and guaranteed against ultraviolet light degradation for 10 years. Even under the most severe climatic conditions, no changes in color or clouding will occur, and the film will not weaken in any way. With 83% light transmission and 83% diffusion, this covering ensures an even illumination inside, preventing shade formation and burning glass effects, so that your plants can grow faster, and grow straight. Attached to the greenhouse frame with a special extruded channel that will conform to the curvature of the roof. A lip along each edge of the film slides into slots along the edges of the extruded channel, securely locking the film in place. Can also be used on endwalls and can even be rolled up into sidewall curtains. 120 lbs. per square foot snow load rating; 100 mph wind rating. Available in bulk rolls in widths of 4, 5, and 6' (which correspond to the most common bow spacings) and all at a standard length of 328'. Extruded mounting channel sold separately.