Back to Window Glossary
A window composed of overlapping narrow glass, metal or woodlouvers, operated by means of a crank handle for adjusting the louver angles; introduced in the 1950?s.
Definition J-channel Frame
See What Installations We've Done Near you
View Our Recent Work
Get a Free Estimate for Your Home Improvements
Schedule Your Free Estimate
See More Reviews
Michael Just said...
"Very good service and professional. "