This photo shows the connection between a corner vertical mullion and two
horizontal mullions. The shear block connections are
misplaced. Thin glass gasket and glass will create a gap, because the glass
receptor surfaces are misaligned
These gaps would definitely constitute a future leak origin.
See also the next photo showing the same condition.
This deficiency I have tracked the next day after installation and I pointed
it out to the installer, off the record. He assured me this will be remedied
shortly. I waited one week to no avail. Another week later I decided to write the report -
without any response, as usually.
Only the angry owner's representative's visit
on the construction sitemade a trick few months later. The curtain wall
installation has been very advanced at this moment, so it took lots of time
and effort to fix this relatively simple defect.
The photo below shows the same connection between the corner vertical mullion
and the horizontal mullions shot from below.