Thermobarrier: The Easy and Cost-Effective Way to Enjoy a Cool Summer and a Warm Winter. Multi-Functional and Easy to Install: Discover Thermobarrier! Typhoon-Resistant Construction: The Durable Sky Method We conducted a test at the Architectural Institute of Japan to see if the Sky Sheet would be blown away by the strong winds of a typhoon. The test revealed that even with winds of 40 meters per second on a roof 16 meters high, the Sky Sheet did not get blown away. The doubl