UV Protection: Equipped with UV-protected polycarbonate panels that filter harmful rays while maximizing beneficial sunlight, creating an ideal environment for plant growth and preventing sunburn. High-Quality Aluminum: Engineered with high-quality aluminum parts, this winter polycarbonate greenhouse with automatic roof vents is built to withstand the elements. Reinforced, weather-resistant frame offers year-round durability. Wind Rating: 50 mph; Snow Load Capacity: 40 KGS/SQM. Multi-Purpose Use: Perfect for plant cultivation and can also transform into a private lounge or small guest reception room. Overall size: 131.5" W x 66.54" D x 76.77" H. Door size: 22.83" W x 60.63" H. Note: Shipped in two boxes, may arrive separately. All-Season Use & Quick Setup: Ideal for cultivating vegetables, plants, and herbs. Quick install system with slide-in panels, perfected through over 500 tests, boosts setup speed by 40% and enhances stability by 35%. Simplified assembly process for easy installation. Adjustable Roof Vent: Features an adjustable roof vent that can be mounted on any panel and customized during assembly. Includes a secure lockable door to protect against wind.