Term

Mineral fiberboard

Definition

• Glass fibers or gypsum powder are mixed with a binder and pressed between two layers of asphalt-impregnated paper, producing a rigid insulation board Will not support combustion and will not burn

Term

Oriented Strand Board (OBS)

Definition

Consists of compressed wood strands arranged in five or more cross-banded layers and bonded with phenolic resin under intense heat and pressure Offers dimensional stability, stiffness, fastener holding capacity, and no core voids

Term

High-density overlay (HDO)

Definition

Have a hard, resin-impregnated fiber overlay heat-bonded to both surfaces Are abrasion- and moisture-resistant