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Old 27th October 2007
  #66
PDC
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Quote:
Originally Posted by Bob Olhsson View Post
Making a dome that would be massive enough to be soundproof would be difficult and very expensive, probably considerably more so than conventional construction.
Actually no. There is a method that is cheaper than conventional construction. A large membrane is inflated and layered with concrete. The membrane is deflated when the concrete has cured and bammo, a dome.

http://www.monolithic.com/