Hewn believes that the quest for safer, fire-resistant siding should not result in sub-par products that mimic the look of wood siding. Wood siding has a long history of use in North America, and we aim to continue these generations-old traditions by developing real-wood exterior siding that is designed to meet the ever-increasing need for fire safety in our changing natural landscape.
Our Class A Exterior Pressure Treated Fire Retardant Lumber maintains the visual look and feel of our traditional exterior cedar siding, while implementing an industry-leading fire treatment process that modifies the wood to its core. These products resist the spread of fire, helping your project meet any major fire codes present in your area, and protecting your property in ways that were previously out of reach on a commercial scale.
In addition to their fire resistant properties, our treatment process has the added benefit of slowing the aging process of the wood itself, protecting against ultraviolet degradation and extending the lifetime of the material.
Our fire resistant products are subjected to industry-standard accelerated weathering tests (ASTM D-2898), Flame Spread (ASTM D-84), and are verified by International Code Counsel ESR-1159 and ESL-1021.