About Extira Composite Exterior Shutters

exterior shutters • hardware • gable vents • Cupolas
CA contractors license 591633
since 1982

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Composite wood shutters made with Extira™ The Rockbridge™ shutter collection is made entirely of Extira®. Also Larson's PlacerCraft™ wood raised panel shutters are made standard with Extira® panels. Rockbridge composite shutters are made with Extira® and are crafted with the same woodworking techniques and milled with the same machinery that our quality real wood shutters are. Extira® is a revolutionary new-to-the-world material that is unique: Extira® resists moisture, rot and termites and offers excellent performance in exterior environments. Extira® can be used in paint-grade EXTERIOR applications. It also works well for high moisture interior environments. Extira: Take It Outside! Moisture, rot and termite resistant Treated with zinc borate Phenolic-bonded for exterior durability Essentially no formaldehyde emissions Moisture Resistance, as measured by ASTM D1037 (water absorption and thickness swelling). Rot Resistance, as measured by AWPA E-10 (standard method of testing wood preservatives by laboratory soft-block cultures). Termite Resistance, as measured by AWPA E-7 (standard method for laboratory evaluation to determine resistance to subterranean termites).

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