Strongwell EXTREN FRP Used to Preserve a Lighthouse

November 20 2017

In Virginia, on Horseshoe’s Bar sits Thimble Shoals, a screw pile lighthouse. Over the years, corrosion has accelerated the degradation of specific portions of the lighthouse through ultraviolet exposure, coastal winds and salt water. Thirty-three metallic canopy and gutter supports had corroded beyond repair. EXTREN FRP beams were utilized to replace the rusted metallic struts, canopy and gutter supports. Prior to install, the fabrication and installation team had little exposure to pultruded composite fiberglass. Despite this lack of experience, the team chose fiberglass due to its corrosion resistance, durability, high strength-to-weight ratio, ease of handling, and the installation challenges steel would present at their remote location.

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