Abstract: Protective cover sections and sealed assemblies thereof fully enclose structural shapes such as I-beams and the like to protect them against bacterial growth, mildew, corrosion and the like. Each cover section is generally thin-walled, substantially rigid, flexible and tough so as to resist chipping, denting and peeling. Each cover section has flexural joint portions that facilitate adjustment thereof to cover a range of structural shape dimensions. On-site applied assemblies of the cover sections are adaptable to a variety of existing structures and include a pair of cooperating cover sections with opposed edge portions of one connected to edge portions of the other at a pair of opposed, sealed, continuous seams extending along the cover.

Abstract: Apparatus and methods for forming generally tubular pipe covering sections with overlapping edge portions from a sheet of elastomeric material. For relatively thin material thicknesses the material is rolled on a male mandrel to provide a plurality of spiral wraps and this roll is heated to a selected temperature between 120.degree. F and 150.degree. F for at least 12 hours to effect a set in the roll. Selected lengths of the sheet material are cut from the roll to provide tubular pipe covering sections of a selected circumferential size. For relatively thick material thicknesses with substantial rigidity, a continuous roll of the material is cut transversely along its length to form a series of blanks. The length of the blank is established by the width of the roll and the width of the blank is selected according to the diameter of the pipe or insulated pipe to be covered.