Lang Exterior Blog

We Manufacture the Products We Sell

The Lang Exterior, Inc.™ Guide to Windows

Windows by Lang Exterior, Inc.™ Awning Windows hinge from the top and crank outward. Bay Windows project outward and can have double hung or casement windows on the ends with … Continue reading

April 1, 2014

PowerWeld 1650 Series Slider Windows

For more information on our PowerWeld line of Slider windows visit the Slider Window Page on our website.

March 26, 2014

The PowerWeld 1650 Slider + Enhanced Glass package

RESULTS   U-Factor: 0.303   SHG: 0.267   CVT: 0.506 Windows must be ordered with the Enhanced Glass Package to get these ratings. Project Summary Architectural Testing, Inc. was contracted … Continue reading

February 26, 2014

R5 Super Series

We make Being Eco-Friendly Easy The largest source of heat loss in a consumer’s home could be greatly improved upon when purchasing an R5 window. It may be possible to … Continue reading

March 15, 2012