Or the glass unit in the door. Sliding glass doors are often in standard sizes so the insulated glass unit can be replaced without tearing out the entire door.
It can also be minerals from water sticking to the glass, much like in a shower. They sell the outdoor window cleaner at Home Depot. It helps, I use it on my skylight windows.
If it’s not condensation between it could be a mold that grows on the outside of siding etc. you would think a cleaner would take it off if it was. I used a bleach to kill it and scrape it off.
That or maybe a vinegar if it is on the glass and not inside
It might be condensation stuck between the panes of glass. If that’s the case, the door needs to be replaced.
If this is the case, try a hairdryer, heat gun or dehumidifier first to see if that helps.
Or the glass unit in the door. Sliding glass doors are often in standard sizes so the insulated glass unit can be replaced without tearing out the entire door.
It can also be minerals from water sticking to the glass, much like in a shower. They sell the outdoor window cleaner at Home Depot. It helps, I use it on my skylight windows.
Thank you I will definitely give this a try !
I’m a sucker for Zep products. They have a great window cleaner with ammonia.
If it’s not condensation between it could be a mold that grows on the outside of siding etc. you would think a cleaner would take it off if it was. I used a bleach to kill it and scrape it off. That or maybe a vinegar if it is on the glass and not inside
I get confused too, That is a window! Have a nice day!
You are under the dome! /s