arc welding
 

The welder is welding without providing any protection to the curtain wall . I asked him to stop and provide protection to the curtain wall before welding, but he ignored me completely, so I made a photo. He was absolutely correct. I was too inexperienced to know that owner's consultants are not supposed to talk to subcontractors. I called the superintendent (again inapropriately - I should have directed communication through the architect) who stopped his work.


Spray of hot slag and metal particles melted into the surface of two glass panes on the left side of the photo, irreversibly damaging them . Only the transparent glass unit needed replacement, the spandrel glass surface will be beyond vision.