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What is the best way to install 30" high x 72" wide x 5/8 thick double pane fixed glass in vertical wall on roof. I am replacing "cloudy"existing ones

Bruce Wiegan of BNW Builders PRO answered:

Apr 18, 2015
Is this a skylight or window application?  Do you have any photos to share?
black spots on the roof. can you tell me what is the cause of this? have lived in this house 12 years and have had no problems. what can you do to clean this?
Oct 18, 2014
This type of staining (algae as the other posters have said) will usually only happen on the North facing surface of the roof.  Same with condensation on your car glass.  Suprisingly, the North facing ... read more

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