Installation Guide

Finishing
• Prefinished Thermally Modified Wood cladding is ready for installation
upon delivery.
• Natural Thermally Modified Wood cladding can be left unfinished.
Areas exposed to UV will turn gray/silver over time.
• If the appearance of “Natural” Thermally Modified Wood cladding
(Natural/unfinished only) is desired a UV-resistant topical coating should
be applied. Follow all manufacturers recommendations for coating and
application. It is recommended to test any coating prior to installation.
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Exterior Installation
• Finishing/sealing Thermally Modified Wood is recommended on all exposed
edges and cut ends for best appearance, performance and durability.
• Thermally Modified Wood cladding should be installed over a rainscreen
to allow proper airflow and water drainage. A gap of ½” or greater is
recommended for proper air flow and drainage of the wall cavity.
Furring strips should be placed no more than 24 inches apart
and must be nailed directly to vertical support studs.
• Tongue-and-groove pattern boards can be installed horizontally or vertically.
The benefit of T&G profiles is the interlocking of pieces.
The T&G pattern helps reduce the number of exposed fasteners.
• In horizontal applications, start at the bottom and work up, with
the groove edges facing downward.
• In vertical applications, start at one corner with grooved edge facing
toward the adjacent wall. Use a level or plumb line to ensure that the
first board is installed vertically. The grooved edge of the first board
may have to be trimmed to ensure a flush fit.
• Ensure the boards are fully set on the previous board and the seams
are tight between boards.
Install shiplap horizontally or vertically. For horizontal applications, start with
the bottom course and work up with overlap pointing downward. Do not nail
through overlaps. Shiplap siding is tight-fitting, so butt the courses up close.
THERMALLY MODIFIED WOOD COLLECTION
SIDING INSTALLATION
Storage and Handling
• Must be stored off the ground and covered with a water-resistant barrier.
• Lay flat on an even and drainable surface away from standing water.
• Product should not be exposed to the sun or excess heat while being stored.
• Product may get damaged if stacked and exposed to elements.
Clearance
• Store 12 inches minimum above ground.
• Adequate clearance above all horizontal draining surfaces such as doors
and windows or roofing is required. Follow all local building codes.
Fastening
• The thermal modification process increases the density and brittleness
of the wood, making it more susceptible to splitting. It is recommended
to predrill holes for all fasteners to reduce the occurrence of splitting.
• Stainless steel fasteners are recommended for exterior applications.
• Fasteners must penetrate 1-1/2” (32mm) into solid wood.
• Screw fastening is recommended for exterior applications.
• Screwing through the front of the board (2 screws per joint) offers
the best holding ability.
• Secondary option of fastening through the tongue to eliminate exposed
fasteners is acceptable. Boards up to 6” (152mm) wide can be blind-nailed,
with one siding nail per bearing toe-nailed through the base of each tongue.
• Nails should be placed through the face of the boards to start and end the
wall or ceiling to ensure both edges are securely fastened to the structure.