Marvin Windows - Double Strength Glass?

funkatationSeptember 21, 2009

I was at a local Marvin dealer, and the salesmen said that all Marvin Windows use double strength glass, whereas the Pella/Andersens use single strength. First, is this true, and second, does it matter?


Thank you for reporting this comment. Undo

double strength are generally not needed as they don't provide additional energy savings. However, there are some benefits. The are a bit stronger. both panes are affixed to a spacer to form a seal. This keeps the argon gas inside the two panes. Leaking of this gas is called a "seal failure" (foggy glass inside) This is generally covered by warranty for 10 or 20 years but the manufacturer will only replace the glass, not the sash. (some exceptions). A dealer might cover the cost of installaion for the first few years. After that, it's your responsibility.

With wood windows, replacing glass requires a glazier who will charge $50 to $100 per window. You might be able to do it yourself, but it is tricky.

Things that can cause a seal failure include flexing during installation which puts stress (twist) on the window glass. Enough stress and the glass may even crack. Also expansion/contraction of wood framing around the window due humidity or drying out or even settling of the house can put stress a window as well as opening / closing hundreds of time. Double strength being thicker and stronger will resist twisting / bending and help prevent seal failure.

If there are extreme cold hot swings in temperature, the glass and sash can expand and contract more and cause seal failure. Because of this, Canadian building code requires double strength. The US does not.

Double strength are also quieter at keeping noise out. Oh, and they are a bit heavier to physically pick up.

    Bookmark   September 21, 2009 at 8:12PM
Thank you for reporting this comment. Undo

Thanks for the info. So does any one know if these is standard on Marvin? This is what my dealer is telling me, but when I called Marvin, they acted like I didn't know what I was talking about...

    Bookmark   September 21, 2009 at 9:46PM
Thank you for reporting this comment. Undo

Yes Marvin makes it standard on all their windows. Marvin is a much better window.

    Bookmark   September 25, 2009 at 1:01AM
Sign Up to comment
More Discussions
Need help. Looking for window expert consultant in Minneapolis
We had our windows replaced (full replacement) and...
Plantation Shutters Pros/Cons, need advice
Hi, I'm new to this website and owning a home so forgive...
Modern Windows
Can anyone suggest an affordable modern window? Thanks!...
Any opinions on Hurd H3?
I know Hurd is not well-regarded here on GW but the...
pulley and weight window stuck open
I cannot get it closed even though I basically hang...
Sponsored Products
Single Bottle Wine Caddy
$13.99 | zulily
Waverly Fantasy Fleur Pillow - 14 x 20 in. Multicolor - 13545014X020PUM
$34.99 | Hayneedle
Winter White Bold Stripe Apothecary Table Lamp
Lamps Plus
Coral Reef Narrow Zig Zag Ovo Table Lamp
Lamps Plus
Italian Bathroom Sink
Veratex Grand Luxe Pearl Linen Gotham Rod Pocket Panel
World Imports Pendant Lights Dark Sky Revere Collection 14 in. 5-Light Outdoor
Home Depot
Jamie Young Company | Small Saint Croix Table Lamp
$325.00 | YLighting
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™