The Many Lives of Copper Flashings

New products constantly flood the construction industry. Some promise and deliver real positive advantages, while others leave questions as to their real advantages over possible new disadvantages. Moisture management has been a real concern in all phases of construction for centuries. It is generally agreed that moisture must be dealt with in a way that will protect a structure for life. Properly designed through-wall flashings are the widely accepted answer to moisture migration in typical cavity wall construction. Proper attention should be given to the location of these flashings, along with the type of materials used.

Case and Point

Twenty-eight years later, the bank relocated, and the building was sold to a national donut chain. Once again, minor changes were undertaken to change the doors and windows, but the location remained the same, as did the structure — and the flashing. The flashing over the windows and door is the original copper fabric flashing that was installed about 50 years prior (see image). The longevity of copper has proven itself through the many lives of this small structure in New Hampshire, and will continue to protect against moisture problems through the years and changes ahead.

Conclusion

   — Ameristar Casino/Hotel

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