Products / DynaBoard

DynaBoard is a semi-rigid asphaltic cover board, 1/8 or 1/4 inch thick, with a mineral-fortified asphaltic core and asphalt-saturated fiber glass facers, typically used as a protective cover board over insulation or an existing roof. The data sheet (RS-5602) prints 4 by 4 and 4 by 8 foot sizes and compressive strengths of 1,610 and 1,320 psi by ASTM C472, and lists a guarantee of up to 30 years when used in most JM multi-ply systems.