Replacement Window Ratings
Explained For San Marco, FL

Understanding The Numbers
On Your New Window

Best window replacement ratings in san marco fl by jacksonville windows

Understanding ratings on your replacement windows in San Marco, FL is useful knowledge. Each number has a significant meaning that lets you know the quality and suitableness of your window replacement.

At Jacksonville Doors and Windows, we’ve developed this guide to help you understand the different ratings for your replacement windows. Read on for everything you need to know.

National Fenestration Rating Council (NFRC) In San Marco, FL

The National Fenestration Rating Council (NFRC) is the official rating organization for energy efficiency. They not only rate the windows’ performance but also compare them to other windows.

The non-profit creates these ratings to allow consumers to compare their new and old windows. Each rating is stamped onto a sticker that shows the performance ratings with the type of window included so you know that the rating you see is accurate.

Energy Star Ratings In Jacksonville

Energy Star is a government organization that assigns ratings to windows, doors, and more. Most windows in the United States include Energy Star and Energy Guide stickers.

The organization takes the style, type of glass, and material of the window into account to assign these ratings.

U-Factor For Residential Glass Window Replacement

  • Range of 0.10 to 2.00
  • A lower number means less heat loss

The U-Factor of a window measures how well that window insulates. This affects both heat loss and heat gain but focuses on heat loss, helping you keep your house warm in the winter. The lower the number, the better the window insulation, which is good for summer and winter.

Even though San Marco, FL is not especially cold during the winter, it’s good to have that added insulation to ensure you make the most of your heating and cooling system.

Solar Heat Gain Coefficient For Residential Window Glass

  • Range of 0 to 1.00
  • A lower number means less heat gain

Solar Heat Gain Coefficient (SHGC) is similar to the U-Factor but focuses on keeping heat out rather than keeping cold out. SHGC measures how well the window keeps the sun’s heat out of your house.

In San Marco, FL, this rating is extremely important. Getting a window with a good SHGC could save you a lot of money on your energy bill. A good SHGC rating will also help you reduce UV rays from entering your home and damaging your furniture and skin.

Visible Transmittance Rating For A Window Replacement

  • Range 0 to 1.00
  • A higher number means more natural light

Natural light is important to most homeowners, which makes perfect sense. Visible Transmittance (VT) gives you a better idea of how much natural light will be let in before you even see the window. This is advantageous as you can choose windows that let the proper amount of light in before installation.

There is no right Visible Transmittance rating, as many homeowners prefer a darker house. That’s why it’s good to know ahead of time and choose how much light you want to let in.

Air Leakage From Residential Replacement Windows

  • Range of 0.1 to 0.3
  • A lower number means less air leakage

The Air Leakage range is very small because, ideally, the number should be the lowest number – 0.1. Air leakage results in drafts that make your indoor temperature closer to the outside temperature, giving you less control and increasing your energy bill.

During a Jacksonville summer, keeping air out is crucial – a good Air Leakage rating is one way to do that.

Condensation Resistance In San Marco, FL

  • Range of 1 to 100
  • A higher number means less condensation

Condensation Resistance measures the potential of condensation forming on the inside of a window. If the number is low, it’s likely moisture will build up on the inside of the window. If it’s high, the outside moisture – and more – will be kept outside.

The risks of neglecting condensation resistance in San Marco include moisture build-up that leads to mold, rot, and more. It may also change the temperature inside and cause a mess of water droplets that drip from the glass.

Residential Window Replacement Companies With Ratings

Window replacement companies should have ratings on their windows. Pella replacement windows and Andersen replacement windows have official ratings you can trust.

Are you ready to replace your window with new energy-efficient windows with great ratings for Jacksonville residents? For a free estimate on window replacements in San Marco, FL, call Jacksonville Doors & Windows today at (904) 503-0680!