Frank wrote:
I replaced my windows last year with renewal by Anderson units . So far
they are great. This window is coated on the outside to stay clean (
almost works) what is the best way to safety clean the coated glass?
Dealer is vague.
Frank
I have them too and had not considered this, but, I believe the coating
is an inorganic titanate which should be stable to any cleaner. Only
way I could think of to harm the coating would be to abraid it off so as
with cleaning any glass you do not want to rub the dirt in when wiping
off but first flood the window with water to rinse off abrasive particles.

Frank