Window Cleaning Help

Mark 8262

Mark 8262

Residential and Commercial Pressure Washing Specia
I am bidding on pressure washing a huge old church. The stained glass is covered by another glass. I was told this outside glass can not get any chems on them and can only be cleaned with soap and water.

The church is telling me the windows need to be covered before pressure washing. There are 10 windows like you see in the picture. The top of the window is probably 25 ft high. I can do that but was not sure it was necessary. I was wondering if you get just keep water on the window while the surrounding area is being sprayed with chems.

If anyone has experience with this type of glass please give me any tips that you might have. I have done work for this church and am sure I will get this job, I just want to be prepared. Thanks for your help

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What kind of glass is it?
 
She wasn't sure of the name, but I'll find out
 
Yeah, I'm very curious about this. It's a new one to me, assuming they really know what they're talking about.
 
I have only come across this one other time. It was on a sun room of someones house. They told me not to get chems on the windows, so I did what they asked.
 
It is actually Lexan a type of Plexiglass. Will keeping it wet while spraying house wash keep it safe?????????????
 
"The Lexan portfolio provides broad design versatility through its wide range of viscosities and product options such as: environmentally conforming flame retardancy, scratch resistance, toughness, heat resistance, weatherability, biocompatibility, optical quality, and compliance with stringent FDA and USP requirements."

Doesn't sound like a little house wash would hurt it, but I would err on the side of caution and do what they asked.
Just charge accordingly and make sure they know that they are paying for what they are getting and vice versa.
 
Lexan is just a brand name of a polycarbonate. Polycarbonate does not react well with ammonia, which is in most commercial window cleaning chemicals. That's probably the reason they have asked for "no chemicals".

Here's a manual for GE's Lexan, there's instructions at the bottom for cleaning. Lexan Care

I don't think you would have a problem with your regular house wash mix. I wouldn't use hot water though. If you (or they) feel more comfortable covering the windows you could easily cover them with some thin plywood.
 
Micah and Thad thanks for the help
 
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