Boral has added three new profiles to its line of Boral TruExterior Beadboard: a 4-inch, a double-4, and a double-6. The new profiles (which join an existing 6-inch beadboard) are made with poly-ash material, a blend of polymers and fly ash that is dimensionally stable and resistant to moisture, cracking, splitting, and termite damage. The profiles are 5/8 inch thick and come in 16-foot lengths. The material can be installed 24 inches on-center with no support backing. Price to the contractor runs about $5 per square foot.