In our most recent blog, we began discussing vinyl window ratings. While vinyl windows are generally a very energy efficient and cost efficient option for replacement windows for your San Jose home, these ratings help consumers even more. These ratings evaluate the efficiency and quality of different vinyl window brands so consumers can be sure they are making the best investment they can. In our latest blog, we discussed ratings, such as the ENERGYSTAR rating, as well as how Low-E glass helps keeps your home efficient. Next, we are going to discuss additional ratings that will help you select the best replacement windows for your home.

U-Factor
This rating refers to how much heat transfers through the window. The lower the U-factor, the less heat that is capable of being transferred through the window. The higher the U-factor, the more heat that is capable of being transferred.

SHGC
This rating stands for Solar Heat Gain Coefficient. This refers to the window’s ability to block the sun’s heat. The more heat the window blocks, the lower the rating. The less heat the window blocks, the higher the rating.

Visible Light Transmission
This refers to what percentage of light penetrates the glass. The greater percentage of light that penetrates the window, the higher this rating will be. The lower the percentage, the lower the rating.

These 6 overall ratings we have discussed are a great consumer tool for purchasing replacement vinyl windows. If you have any questions regarding vinyl windows or their ratings, please do not hesitate to contact us. We have an amazing selection of windows and we will help you find the ones that fit your style.