Patent ID: 8142879

Claim:
A flat, rectangular composite insulation, comprising: an insulation member having a top surface and a bottom surface and pores in at least the bottom surface; an adhesive coating disposed on the bottom surface of the insulation member and at least partially within the pores; a protective jacketing material having an inner surface that includes a pre-applied adhesive that is disposed in direct contact with the adhesive coating to securely attach the jacketing material to the insulation member, the pre-applied adhesive on the protective jacketing being separate from the adhesive coating; and a plurality of V-grooves defined at spaced intervals in the top surface of the insulation member and extending through the insulation member to a point proximal to the protective jacketing, each of said plurality of V-grooves being defined by a pair of opposed faces, with pairs of opposed faces being selectively urgeable to an abutting relationship with one another to define at least one substantially curved portion along the outer surface of the protective jacketing material.