Celotex

Example:The architect recommended using fire-resistant sheathing like Celotex for the house's exterior walls.

Definition:Any rigid material used on the exterior of a building to provide a surface for wall coverings or to cover the roof and protect against water damage

Example:The contractors used Celotex as the core board for their insulation panels.

Definition:A compressible core material, often made from wood fiber, used in sandwich panels or composite structures for insulation or soundproofing