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 Core of the window
Author: Linda (---.proxy.aol.com)
Date:   

I am shopping around for replacement Vinyl windows. One difference in the various vinyl windows are the material in the core of the window. One boast to be the best with its wood core design. Others have the metal "bracing" design. Which is better? Does it matter???

 

 Re: Core of the window
Author: tracy horton (207.150.86.---)
Date:   

I have been told the insulation, like in a Champion window is best and metal is a conductor for cold heat.
Have you found anything similar?

 

 Re: Core of the window
Author: Fenestration Expert (---.dyn.optonline.net)
Date:   

Truth is.. the foam insulation is added for support of weaker vinyl products. The insulation value improvement for the entire window performance is nominal as a window is 80% glass. The Champion window is a mid-grade product at best.

 

 Re: Core of the window
Author: alex (---.dsl.emhril.ameritech.net)
Date:   

use a little common sense aluminum,steel,conducts cold and heat., and since when has foam added support or strength to a window its there to slow down transfer of heat or cold...

 

 Re: Core of the window
Author: Fenestration Expert (---.dyn.optonline.net)
Date:   

Since when you ask? Foam coring has been used to support weaker structures since the 1950's because it's inexpensive to use and easy to apply to all shapes. The "Tin Men" used the foam backing on paper thin aluminum siding to keep it from denting as easily claiming it was for insulation purposes but if you have ever seen a piece of it... it was void at every course for installation ease (defeating it's claimed purpose). Other uses have been shower basins, soles of shoes and as a packing material to ship fragile items due to it's rigitity. Common sense states that steel and aluminum do conduct but can't when concealed in non-conductive casings (i.e. the wiring in your house wrapped in vinyl) and is much stronger than wood or vinyl. As stated before... if your concern is energy usage reduction, remember a window is 80% glass, and glass is responsible for 60-80% of your heating and cooling bills... not the frames.

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