Extira is a treated wood composite panel product made from wood fiber, phenolic resins, zinc borate and a water repellent. While the wood fibers make up 90% of the material, the zinc borate — an EPA-registered biocide — works to control potential rot and other wood-destroying organisms.
All of our custom-made shutters are built using Extira composite material. Extira is a heavy-duty material built to withstand anything that Mother Nature throws at it. Extira has excellent rot-resistance and has unmatched flexibility and durability.
So, where does the sustainability come in? Well, Extira is made from wood that has no commercial timber value. By utilizing this locally-sourced “leftover wood” without added urea formaldehyde, Extira panels contribute to industry green building programs and comply with the California Air Resources Board’s Airborne Toxic Control Measure 93120.
| Extira | MDF | plywood | |
|---|---|---|---|
| Price | $$ | $ | $ |
| Moisture Resistance | Good | Poor | Poor |
| Rot Resistance | Best | None | None |
| Weathering3 | Good | Poor | Poor |
| UV Resistance3 | Good | Good | Best |
| Warranty | 10-year | 30 Days | None |
