The aluminum or stainless steel outer shell, combined with the double rolled seam, provides a weatherproof, durable maintenance-free tank insulation/fire protection system. The internal anchor system features horizontal cables which are easily applied circumferentially around the tank, eliminating external bands. Flanges of adjacent panels are double-rolled over each other by a self-propelled tool that travels up the panel seams. The continuous vertical insulation panels are manufactured in lengths to fit your tank height and are shipped to the jobsite ready for installation without the necessity of scaffolding. The double-rolled seam provides a tough weatherproof seal between panels. Rivets and screws are not required to anchor the insulation panels. No penetrations are made to the outer shell. TufSeam is designed to withstand hurricane force winds (up to 206 mph).