There are 2 names in this directory beginning with the letter V.
The portion of the electromagnetic spectrum that produces light that can be seen. Wavelengths range from 380 to 720 nanometers.
Visible transmittance (VT)
The percentage or fraction of the visible spectrum (380 to 720 nanometers) weighted by the sensitivity of the eye that is transmitted through the glazing.
Keith L. of Silver Spring, Montgomery County, MD 20901
(Found on CheckBook.org)
Crystal Exteriors did a gutter replacement on our home in addition to siding replacement (see separate review). All of our gutters/downspouts had special issues; for most of them, we had a option built in to divert water to rain barrels in the summertime and for regular drainage in the winter. Crystal exteriors did an outstanding custom job, the work crew were professional and prompt. I would highly recommend Crystal Exteriors for any such outdoor work.
Whether you’re interested in windows, doors, siding or roofing, our experts are here to help. Feel free to get in touch with questions or quote requests and experience Crystal Exterior’s customer satisfaction.