Thru-wall flashing has been a problem for masons and spray foam contractors ever since it has been used on the annular space between the exterior sheathing and the brick or block.
Flashing used to be installed prior to spray foam application. The Flashing was distorted and contaminated by the spraying process.
The flashing was further damaged by exposure to the elements prior to brick or block setting.
These issues have now been solved!!
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