Altree combines a renewable resource (wood fiber from invasive species) with one we need to get rid of (thermo-plastic milk bottles). While cost-competitive to purchase, Altree has a longer lifetime than solid wood products. That means lower maintenance and replacement costs, no matter how harsh the environment.

• More stable in high moisture than solid wood
• Corrosion-free
• Resists fungus, mold, and mildew
• Resists termites, other insects, rodents, and parasites
• Easily withstands freeze-thaw cycles
• Endures repeated snow burial
• More resistant to salt and acids than solid wood
• Won’t warp or splinter
• Withstands severe bullet impacts without shattering
• Ignored by gnawing animals
• Non-toxic to humans and animals
• Free of chemicals that leach into the soil
• Installs easily with ordinary wood fasteners

After two years of field testing with harsh winter exposure in the Kaibab and Cibola National Forests, Altree has proved resilient to weather and resistant to damage from animals and people. It has a detailed history of research, development, testing, and enhancements. Altree is stiffer than other wood plastic composites. It expands less in moist environments, and has improved dimensional stability. Because it uses wood fibers instead of flours, Altree demonstrates enhanced mechanical properties, such as strength, elongation and un-notched Izod impact.

Wood chips from pine or juniper are less expensive, lighter, and less abrasive than previously used thermoplastic fillers like talc, calcium carbonate, mica or fiberglass.