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In a message dated 1/27/2009 4:11:55 P.M. Eastern Standard Time, [log in to unmask] writes:

Interesting question. We see masonry buildings with no expansion joints right through the 1960’s ( the heydey of cavity wall white glazed brick construction) Both my partner Doug Cutsogeorge and I think a good guess would be early in the 1970’s perhaps 73 0r 74. A good way to confirm this would be to question the Brick Institute of America BIA to see what year they first started recommending expansion joints in brick construction.

Anybody know when expansion joints became de rigeur? c

c,

Do you mean when were they introduced into new design, or when that they began to be retrofited into existing buildings? Earliest evidence of retrofit, or when did retrofit reach a peak in implementation?

As to retrofit as far as NYC is concerned I think it would have to date corresponding to after the 1970s economic slump and when property owners began to re-invest in their buildings. My gut feeling is that 73-74 is too early.

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