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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Bryan L. of Kensington, Montgomery County, MD 20895

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Like many of you, you employ some contractors that are decent but you have a select few contractors that you would recommend to anyone without hesitation. Crystal Exteriors is one of the latter for me. You get to deal with the owner, Edgar, directly. He communicates very well and is responsive. It was no problem for Edgar to give me an estimate on short notice, and the project was completed exactly as promised without a hitch. If you want a smooth job with personal attention and no drama, go with Crystal Exteriors.

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