Installation Instructions
Allura Fiber Cement Siding Installaon Manual
32
When incorporating Allura Fiber Cement Siding into a rainscreen system, adhere to the
following recommendations:
The rainscreen system must be designed to ensure that all appropriate wind load
and anchoring requirements are met.
Use 20 gauge (minimum) steel furring. Steel furring strips must be applied to steel
framing members in such a manner that they provide equivalent load-bearing
capability.
Align all steel furring strips at framing member locations; lathe/furring strip
horizontal spacing must not exceed 24”.
Base the selection of fasteners on the thickness of any non- structural material(s)
between the Allura Fiber Cement Siding product and the framing member. Use
standard Allura Fiber Cement Siding fasteners to attach the cladding through the
non-structural lathe/furring strips and any other non-structural materials to the
structure. (Refer to the latest Allura Fiber Cement Siding ICC-ES Evaluation Report
for fastener recommendations and fastening requirements.)
The combined thickness of non-structural materials (e.g. insulated sheathing, non-
structural lathe/furring strips, etc) between steel furring and exterior cladding may
not exceed 1” in thickness. (Lathe/furring strip thickness requirements may vary;
check with your local code official or governing body for the building requirements
in your area.)
Adhere to all flashing, cutting and sealing requirements outlined in the most
current version of this manual.
Non-structural Rainscreens
Rainscreen systems are designed to promote airflow and moisture management behind
exterior cladding products. When incorporating Allura Fiber Cement Siding into a
rainscreen system, adhere to the following recommendations and install all products in
accordance with all national, state, and local building codes. Be sure to check with your
local code official or governing body for the building requirements in your area.
To attach Allura Fiber Cement Siding over non-structural furring strips such as wood
lathe/furring, treated plywood, or alternative furring strips such as Trimline Flow-Thru
Furring Strips:
Align all lathe/furring strips vertically at framing member locations. Horizontal
spacing for lathe/furring strips must not exceed 24”. Failure to fasten the lathe/
furring strips and the siding at framing member locations may cause the siding to
crack and/or wave.
Base fastener selection on the thickness of non-structural material(s) between the
Allura Fiber Cement Siding product and the framing member. Use standard Allura
Fiber Cement Siding fasteners to attach the cladding through the non- structural
lathe/furring strips and any other non-structural materials to the structure, and
refer to the latest Allura Fiber Cement Siding ICC-ES Evaluation Report for fastener
recommendations and fastening requirements.
The combined thickness of the non-structural materials (insulated sheathing,
non-structural lathe/furring strips, etc.) between framing members and exterior