steel in vinyl windows

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jim r
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Joined: Tue Jun 09, 2009 7:59 pm

steel in vinyl windows

#1 Post by jim r » Tue Jun 09, 2009 8:15 pm

what is purpose of adding steel to a vinyl window ?

windowdude
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Location: Central PA

Re: steel in vinyl windows

#2 Post by windowdude » Tue Jun 09, 2009 8:38 pm

It's to prevent sagging and provide reinforcement in the vinyl frame, especially in the sash frames at the meeting rail on double-hung windows.

It's used in a lot of vinyl railing, like for decks and porches, too.

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Window4U (IL)
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Re: steel in vinyl windows

#3 Post by Window4U (IL) » Tue Jun 09, 2009 11:59 pm

jim r wrote:what is purpose of adding steel to a vinyl window ?
It's to prevent deflection of the center rail of the window in the wind.

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Windows on Washington
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Re: steel in vinyl windows

#4 Post by Windows on Washington » Sat Jun 13, 2009 11:15 pm

Both guys are right. Design Pressure increases and sagging correction if you have a really weak extrusion.

thermex

Re: steel in vinyl windows

#5 Post by thermex » Sun Jul 12, 2009 9:03 am

it is an easy way to increase strength in a cheap vinyl extrusion. it is also a way to increase DP ratings for a high quality window. Schuco comes to mind.

prosteelheader
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Re: steel in vinyl windows

#6 Post by prosteelheader » Thu Jan 21, 2010 8:04 pm

while it is used quite a bit for added strength to vinyl bar. its also used to secure hardware to the vinyl. a lock under pressure would eventually pull loose if it was only screwed into the vinyl...

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