Technical Specifications

ASTM C1186-02
Standard Specification for Flat Non-Asbestos Fiber Cement Sheets
ASTM C1185-96
Sampling and Testing Non-Asbestos Fiber-Cement Flat Sheet, Roofing and Siding Shingles, and Clapboards
ASTM E72-95
Conducting Strength Testsof Panelsfor Building Construction
ASTM E84
Surface Burning Characteristics of Building Materials
ASTM E119-95a Fire
Tests of Building Construction and Materials
ASTM E136
Non-Combustible
ASTM E330-96
Structural Performance of Exterior Windows, Curtain Walls, and Doors by Uniform Static Air Pressure Difference
ASTM G26-95
OperatingLight-ExposureApparatus(Xenon-ArcType)Withand WithoutWaterforExposureof NonmetallicMaterials
(ASTM) standards of the following specifications:
Approvals: ICC ESR-1668
Texas Dept. of Insurance Product Evaluation EC-16
Weather and Other Considerations: Product offers resistance to freeze/thaw cycles and is highly dimensionally stable.
It is resistant to damaging ultraviolet (UV) rays and salt spray. It is immune to wood-boring insects. Product can resist
high wind forces when installed in accordance with Allura application instructions; see instructions for details.
Fire Resistance Characteristics: Allura Fiber Cement products have a Class A (1) Flame Spread Rating - 0, Smoke
developed - 5, per ASTM E84, and is considered Non-Combustible in accordance with ASTM E136.
Installation:
Preparatory Work – Allura Fiber Cementsiding productsarecut andinstalledlikeconventional wood siding. Handle
and store product according to Allura recommendations. Fiber Cement siding may be applied over sheathed walls
or directly to studs spaced up to 24” (610mm) o.c. where local codes permit. When applying direct towood or metal
studs, a continuous weather-resistive barrier, not a vapor retarder, must be applied. A vapor barrier, permeability of
1 perm (57.5 ng/(Pa·s·m2) or less, should be used in the wall when required and as described in the ASHRAE design
manual. Consult a qualified mechanical engineer or other design professional.
Note: Allura Fiber Cement siding must be installed with the textured or smooth finished exterior surface facing out.
Methods – Complete installation recommendations are available from the manufacturer. Pneumatic nailing is recom-
mended for attachment to wood framing. Use double hot-dipped galvanized or stainless steel nails. Do not
use staples. For steel framing application use corrosion resistant bugle head screws. Vertical joints on Prefinished
-Sealed lap siding should be moderately butted. Unfinished or unsealed joints must be gapped 1⁄8” maximum and
caulked. Follow caulk manufacturer’s application instructions. Use drip cap flashing above all openings.
Precautions – Avoid breathing dust created by drilling, cutting, or sawing. Use with adequate ventilation and a dust
collection system; see MSDS for additional dust precautions. All Allura soffit is sealed with our primer/sealer.
A finish coat should be applied within 6 months of installation.
Building Codes – Current data on building code requirementsand product compliance may be obtained from
Allura. Installation must comply with the requirements of all applicable local, state and national code jurisdictions.
Warranty: Allura Fiber Cement siding offers a 50-year limited transferable product warranty on all products listed
in this document with the exception of lap siding products branded as Multimax. Multimax lap siding products offer
a 30-year limited transferrable product warranty. Additionally, Allura offers for ColorMax prefinished products a 15-
year limited coating warranty.
Allura warrants that if used for its intended purpose and properly installed and maintained according to ALLURA’s
published installation instructions: (a) will resist damage caused by hail or termite attacks, (b) will resist rot, (c) will
remain non-combustible, and (d) will be free from manufacturing defects in material and workmanship. See
warranties for details and limitations.
Technical Services: Allura maintains a technical services staff toassist building professionals with questions
regarding Allura siding products. Call 1 (844) 4 ALLURA for samples and answers to technical or installation questions.
©08/18 Allura 2 of 2
Plycem USA
396 W. Greens Road
Houston, Texas 77067
(1-844-425-5872)
www.allurausa.com