Door & Window Protection PE Film Heat-Insulation Constant Temperature

Door & Window Protection PE Film Heat-Insulation Constant Temperature. High Cost-Performance Black & White PE Film: White reflects light and does not absorb heat; Black provides insulation. Durable & Anti-aging: Normal service life can reach 3-7 years, more durable than traditional shade nets, reducing labor costs for replacement. Summer Cooling: When the white side faces up, it strongly reflects sunlight and blocks light penetration. The temperature inside the shed can be reduced by 5-10 degree compared to ordinary. Winter Insulation: The black side facing outward absorbs heat and melts frost, while the white side facing inward blocks infrared radiation (heat) from escaping, providing insulation. Light Shielding & Blocking: The black side can effectively block light, meeting the dark requirements of crops such as edible fungi, helping to increase productivity. Environmental Protection & Safety: Eliminates pollution from the source. Low residue, no fogging, no yellowing.