Installation Instructions
Allura Fiber Cement Siding Installaon Manual
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cladding must not exceed 1”. Requirements for the thickness of lathe/furring strip
may vary, so check with your local code official or governing body for the building
requirements in your area.
For best results, apply lathe/furring strips directly over weather-resistant-barrier-
clad structural sheathing that is attached to framing members.
Adhere to all flashing, cutting, and sealing requirements outlined in the most
current version of this manual.
NOTE: Horizontal installation of furring strips may be required when installing
fiber cement shake products. Using solid furring strips is discouraged in this type of
installation. The ultimate responsibility for water management and diversion is the
responsibility of the rainscreen system designer.
Insulated Concrete Forms
Typically, an Insulated Concrete Form (ICF) wall system relies on a plastic strip
to provide the attachment point for exterior cladding. Since ICF wall systems are
manufactured proprietary designs, only the ICF manufacturer can determine if
the system can accommodate the applied loads created by attaching Allura Fiber
Cement Siding.
We can provide information on the weight of the siding material and the types of
fasteners used with Allura Fiber Cement Siding, but it is up to you to contact the ICF
manufacturer to determine how best (if possible) to attach the Allura Fiber Cement
Siding to the specific ICF system.
Recommended Fasteners to Install Allura Fiber Cement Siding over Furring
1
Product Furring Fastener Fastening Method
Lap Siding Wood
ga
roofing nail
Blind nailed into 1 x 4 furring
Vertical Siding Wood 2” 6d siding nail
6” along the edges; 12” in the field into
the furring
Lap Siding Steel
Pins Must enetrate urring
Screws Must penetrate furring 3 full turns
Vertical Siding Steel
Pins Must enetrate urring
Screws Must penetrate furring 3 full turns
1
Wall construction must allow full penetration of the fastener through the furring.