Basic Composition/Size
Portland cement, ground sand, cellulose fiber, select additives and
water. Hardiplank contains no asbestos, fiberglass or formaldehyde.
Thickness: 5/16"
Weight: 2.3 lbs./sq.ft.
Width:
Smooth and Cedarmill
6 1/4" (5" exposure)
8 1/4" (7" exposure)
9 1/2" (8 1/4" exposure)
12" (10 3/4" exposure)
Colonial Smooth and Colonial Roughsawn
8" (6 3/4" exposure)
All Lengths: 12'
Approvals
Hardiplank lap siding is recognized as exterior claddings in National
Evaluation Service (NES), Inc., Report No. NER-405 (BOCA, ICBO, SBCC8);
City of Los Angeles, Research Report No. 24862; Texas Department of
Insurance; United States Department of Housing and Urban Development;
and City of New York MEA No. 223-93-M. These documents should also be
for additional information concerning the suitability of this product
for specific applications.
Durability
James Hardie fiber-cement building products are autoclaved, will not rot
and resist permanent damage from water and salt spray.
Flexural Strength
Typical based on Equilibrium Moisture Content in accordance with ASTM
test method C1185.
Along direction of sheet: 1850 psi
Across direction of sheet: 2500 psi
Non-Combustibility
Hardiplank siding is non-combustible and shows no flame support or loss
of integrity when tested in accordance with ASTM test method E-136.
Surface Burning Capabilities
When tested in accordance with ASTM test method E-84:
Flame spread: 0
Fuel Contributed: 0
Smoke Developed: 5
Thermal Resistance
(Approximate values)
5/16" thick: R = 0.15
*Refer to National Evaluation Service Report No. NER
405.
