Abstract: A full contact floating roof for a storage vessel includes a plurality of panels wherein each panel includes a core disposed between upper and lower skins. A plurality of closures are provided wherein each closure is secured to perimeter edges of a panel by welding the closure to at least one of the upper and lower skins. A plurality of fasteners connect adjacent closures thereby forming the floating roof.

Abstract: A shoe seal for effecting a vapor barrier between a lightweight internal floating roof and a tank wall of a tank includes a plurality of shoe sections; a plurality of hanger brackets connected to perimeter sections of the lightweight internal floating roof; a plurality of braces connected to corresponding hanger brackets and the floating roof for supporting the hanger brackets; a plurality of pivoting support arms pivotally connected to corresponding hanger brackets and to corresponding upper portions of the shoe sections; a plurality of biasing members connected to the internal floating roof and to lower portions of the shoe sections; and a vapor barrier fabric connected between the shoe sections and the floating roof.