What is Visible Transmittance (VT)?

Learn what Visible Transmittance is and why its important to understand before replacing your windows.


Essentially, Visible Transmittance VT is the measurement of how much visible light travels
through a window into your home. There are many things you need to consider before
purchasing a new window, such as its energy efficiency and durability, and its visible
transmittance is another significant factor, especially if a lot of natural light in your home is
important to you. A lot goes into rating windows and their efficiency and while VT is not as
geared towards saving energy as other types of window ratings, it is something you should
consider before replacing your windows.

To read more about VT, check out this blog here.