Water infiltration may weaken the bond or cause a failure due to freeze-thaw, especially if the guastivino was used for a porch or other outdoor space. Thinking of The Mother Church in Boston, where I observed this condition.

Ilene R. Tyler, FAIA, FAPT, LEED AP
Principal and Director of Preservation
o 734-663-5888
m 734-417-3730


> On May 11, 2014, at 12:02 PM, Derek Trelstad <[log in to unmask]> wrote:
> 
> 

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