Decide: natural color or silver patina
Untreated hardwood and thermally modified wood turn silver gray in the sun. This is cosmetic and does not affect strength. If you prefer the original warm tone, plan to oil the surface.

Every material we sell is chosen for durability. A little routine care keeps the color you love and extends the life of your deck or facade.

Untreated hardwood and thermally modified wood turn silver gray in the sun. This is cosmetic and does not affect strength. If you prefer the original warm tone, plan to oil the surface.


Apply a UV-protective penetrating oil made for dense hardwoods on clean, dry boards. Reapply when the color begins to fade, often once or twice a year in strong sun.

Thermo Ayous and Thermo Ash are stable and resistant to decay. Clean them like hardwood and oil them if you want to keep the original tone.
Composite needs no oiling or staining. Clean with soap and water and wipe spills quickly.

Always test any cleaner or oil on a small area first and follow the product manufacturer's instructions.