8 TO 13% Discount
grade MDF is engineered
with greater density and strength making them more durable than regular MDF. These panels are resistant to moisture, termites, and
fungus. Exterior ratings are for panels and sheathing that will be subjected to extended exposure to
the elements. Exposure 1-rated panels and sheathing can
withstand exposures to inclement weather during construction, but are not
suitable for extended exposure.