This paper was prepared for the New Zealand Institute of Architects Technical Series 2011 and was presented in NZ’s main centers in June 2011 by Bill Grayson BSc, FNZIC.
A 2016 update of this paper is provided at the link below. It remains the property of Grayson Wagner Co Ltd and it must only
be copied or reproduced in full.
This paper was written in frustration at the destructive power of an assumption, particularly when it is
attached to a brand name.
To read the full paper visit Membrane Paper V7 August 2016