wood fiber rigid panels

Wood fiber rigid panels are hard sheets or blocks of thermal insulation made from wood fibers. These generally have a low insulation rating, and must be protected from fire and moisture.

The wood fibers form a firm panel or block. Loose fiber fill and ordinary solid timber boards are different material forms.

The panel serves as insulation rather than merely as a visible wood finish. Its exposure to fire and moisture remains relevant even when it is concealed by another wall layer.