Stedi-R® regular fiberboard sheathing is an environmentally sensitive product. It is ideal for commercial and residential above-ground wall applications, and as underlayment for many types of siding.
Designed to minimize the waviness often associated with installed lap siding, Stedi-R® regular fiberboard sheathing allows water vapors to pass through the wall cavity, rather than being trapped within the wall.
Stedi-R regular sheathing is available in thicknesses of 1/2", and in sheet sizes of 4' x 8' and 4' x 9'. It is also available coated on six sides.
MSDS: Wood Products - Asphalt Impregnated and/or Coated (87KB/6pgs)