PGT mulling instructions

Old 02-10-18, 12:59 PM
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PGT mulling instructions

Hi, I bought some PGT vinyl windows (sh5400) that need to be mulled. Would anyone have any step by step instructions on how to do this? Does the mulled unit get assembled and inserted as a unit or does the mullion get inserted first and then the windows and how to drill and screw into the aluminum mullion...maybe there are company written instructions that would make an installation foolproof? Thanks!!
Old 02-10-18, 01:17 PM
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First have you contacted the seller or the company? Those would be your first source to explore.

I would have to believe they need to be mulled and then installed as a unit. That's the way our replacement windows were always done.

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