Holey Board
Holey Board for Concrete Roof Insulation
InsuFoam HB (Holey Board) is an engineered insulation consisting of a superior closed-cell, lightweight expanded polystyrene (EPS) with factory-applied holes. InsulFoam HB is cut from the same high-quality EPS as our flat InsulFoam products and, when requested, will meet or exceed the requirements of ASTM C578, Type I, Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation.
InsulRoof HB is typically provided with 6 or 8 holes per board. InsulRoof HB offers a long-term, stable R-value and has excellent dimensional stability, compressive strength and water resistance properties.