Window Glossary

Window Glossary

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There are 5 names in this directory beginning with the letter L.
Lap
To overlap the ends of two siding panels or accessory pieces to allow for expansion and contraction of the vinyl product.

Lift Handle
for raising the lower sash in a double-hung window. Also called sash lift.

Lite
A unit of glass in a window.

Low E (Emissivity) Glass
Microscopically thin, virtually invisible, metal or metallic oxide layers deposited on a window or skylight glazing surface primarily to reduce the U-factor by suppressing radiative heat flow. A typical type of low-E coating is transparent to the solar spectrum (visible light and short-wave infrared radiation) and reflective of longwave infrared radiation.

Lug/Crimp
The raised “ears” or tabs on a siding panel, created by a snaplock punch, which can be used to lock a siding panel into place when the nailing hem has been removed.

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Kim P. of Potomac, Montgomery County, MD 20854

(Found on CheckBook.org) Edgar Li helped me select a quality entry door for our home. I had difficulty deciding on the appropriate color and design. He provided me with numerous pictorial samples and quotes and recommended that I get two sidelights to brighten my small front foyer. He was correct. With the extra lights entering the foyer, it now looks twice as big, yet the privacy is still there. Edgar Li was patience and professional from start to finish. I would gladly recommend Crystal Exteriors to friends and neighbors for quality entry door sales and installations.

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