FAQ

Thermally Modified Wood Collection
Frequently Asked Questions
Will the natural finish fade to gray? Can it be preserved?
Left unfinished, Thermally Modified Wood Collection wood will gray out if exposed to UV light. Due to
the thermal modification process the product will gray out faster than other wood products. To
preserve the natural, unfinished color, a high quality exterior penetrating UV sealant should be used
and maintained according to the coating manufacturer’s instructions.
Can I repaint the siding the same color if there is small damage to the surface?
Yes. Repainting damaged areas is recommended. Color matched touch up kits are available from the
manufacturer. Due to the proprietary finish, it is recommended to always test touch up coatings for
application technique and match.
Do I need to paint cut ends prior to install?
Yes. Painting cut ends is recommended. Apply one coat of finish paint from the touch up kit.
Should I pre-drill holes for fasteners?
Yes. Predrilling holes for fasteners is recommended. Areas especially prone to cracking such as the
ends of the boards should always be predrilled. The thermal modification process makes the wood
slightly more brittle and therefore can be more prone to splitting.
Will the thermally modified wood expand and contract?
Expansion and contraction are greatly minimized through the thermal modification process.
Slight movement can still occur, but it is significantly less than untreated wood.
Will the product leach tannins?
No. The thermal modification process bakes out the tannins in the wood.
Is the wood FSC certified (sustainably forested)?
The wood fiber used is responsibly sourced, however it is not FSC certified.
What is the fire rating?
No fire rating has been established on the product at this time.
The product is in the process of being tested.