Foam-Filled Vinyl

Foam has an R6 insulation value, versus R1 for air

Added Energy Savings

Lang Exterior vinyl windows are built for energy efficiency. Combined with energy efficient glass options like Low-E and Argon, foam-filled vinyl brings an added dimension of savings by reducing the amount of heat displacement through the vinyl itself.

Lang's foam-fill process uses a unique low-density foam that has minimal expansion qualities, so there is no risk of bowing or breaking to the window (unlike our competitors).

Lang Exterior can insert foam in every chamber of the vinyl where drainage is not needed.

In one example, foam filled vinyl reduces U-value from .24 to .22, an 8% thermal improvement.*

Lang Products Available with Foam-Filled Vinyl

All of our vinyl windows and patio doors can be configured with foam-filled vinyl. Click below to check out each line:

Platinum Series Windows
Powerweld Series Windows
Renaissance Series Windows
Glide Patio Doors
Rezilience Series Windows


* Technical information was provided by a third-party testing laboratory. Lang makes no representations or warranties as to the accuracy or completeness of such information. These statements are for informational purposes only, and may differ from actual results. Accordingly, Lang is in no way responsible or liable for any claims, damages, losses, costs or expenses of whatever kind that may result from the above.