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