Lock
It's difficult to advise how to lock window down however it must be screwed and locked someway to prevent someone from accidentally opening it due to the 5th floor location. If you have to screw into metal to install brackets do so.
We don't want it to fall and kill Innocent people walking by.
Another thing if I was lucky enough to own an apartment building I would not let Tennant's install appliances without my Facilities Department inspecting them.
It's difficult to advise how to lock window down however it must be screwed and locked someway to prevent someone from accidentally opening it due to the 5th floor location. If you have to screw into metal to install brackets do so.
We don't want it to fall and kill Innocent people walking by.
Another thing if I was lucky enough to own an apartment building I would not let Tennant's install appliances without my Facilities Department inspecting them.