Frequently Asked Questions -Lightwise®

LightWise® Aluminum Clad Wood Windows

Can you replace an individual glass block?

Yes, Pittsburgh Corning Corporation offers a free LightWise® window repair kit by calling the Customer Support Department at 800/245-1217.

What are the physical properties of the LightWise® Aluminum Clad Wood Window?

Installed weight 14 lbs. /square foot
Light Transmission 75%
Sound Transmission STC = 26


Can custom colors be ordered?

Yes, provide us with a color chip and we will try to match.

What is the jamb width for the LightWise® Aluminum Clad Wood Window?

4-9/16 inch. For large jamb width a 2inch extension jamb is available as an accessory and can be trimmed to fit.

Do LightWise® Aluminum Clad Wood windows have a warranty?

The glass block panel assembly and window frame are covered by a ten (10) year limited warranty. Included in the warranty are manufacturing defects, frame chipping, cracking, peeling, pitting, and blistering. The window panel is warranted against leaks, discoloration, and separation.



LightWise® Vinyl Windows

What accessories are available and how do I get them?

Pittsburgh Corning Corporation offer a J channel, brick mold and mullion accessories. These are available by calling the Customer Support Department at 800/245-1217.

Can you replace an individual glass block?

Yes, Pittsburgh Corning Corporation offers a free LightWise® window repair kit by calling the Customer Support Department at 800/245-1217.


Can I install a series of LightWise® Vinyl windows in an existing frame?

Yes, remove the adjacent nailing fins (using a utility knife) of the two LightWise® windows and install the mullion cap design to cover the seam.


What is the R-value for the LightWise® Vinyl windows?

LightWise® Vinyl windows have an R-value of 1.92 which equates to a double pane window.


What are some other physical properties of the LightWise® Vinyl Window?

Installed Weight 9.80 lbs. /square foot
Light Transmission 75%
Sound Transmission STC = 26



Do LightWise® Vinyl windows have a warranty?

The glass block panel assembly and window frame are covered by a ten (10) year limited warranty. Included in the warranty are manufacturing defects, frame chipping, cracking, peeling, pitting, and blistering. The window panel is warranted against leaks, discoloration, and separation.