![]() To allow as much natural light as possible to come through, you might look for glass with a rating closer to 1. This is typically measured between 0 and 1. Visible transmittance is how transparent the glass is. The desirable coefficient depends on where you live- in warmer climates a lower solar heat gain coefficient will help keep the indoors cool, but in cooler climates a higher solar heat gain coefficient can help to keep the home warm. This rating will typically be measured between 0 and 1. ![]() The Solar Heat Gain Coefficient (SHGC) is the amount of solar radiation that passes through a product. Generally, the lower the rating is, the better the insulation. These ratings will typically fall between. The U-Factor is the rate at which the glass conducts non-solar heat flow-or, how well the product keeps heat trapped inside. A few things you should keep in mind: U-Factor Different glass and coatings will provide a different level of performance, and it’s important to understand your options. Not all Low-E glass is the same, and it can come in many forms, with different types of ratings and coatings for high, moderate, or low solar heat gain in cold, temperate, or hot climates. Therefore, even though it’s a thin, transparent coating, it can’t be scratched or wiped away. While there are methods to add insulation to clear glass, Low-E coating is applied to the inside of the glass. Low-E glass actually minimizes-and can even eliminate-unwanted condensation, as the protective coating will keep the surface temperature of the glass warmer in the winter. This happens most notably in winter, when the inside temperature is much higher than the surface temperature of the glass. Reduce condensationĬondensation that can build up between pieces of front door glass can lead to problems such as foggy glass, mold, or mildew. By using Low-E glass, you can protect your furniture, walls, carpeting, and even photos from fading and light damage. UV light can cause damage to the inside of your home over time. Protects the inside of your homeĪs Low-E glass prevents certain light from entering your home, it can also prevent damage to your household belongings. This helps to preserve the window’s coating, but it also improves energy efficiency, as Argon gas has a higher density than plain air, which helps to keep internal temperatures from escaping. The majority of Low-E glass utilizes Argon gas between the glass panes. Low-E glass will reduce this loss and save homeowners money in the long run on heating and cooling bills by helping to maintain internal temperatures. Energy-efficientĪn estimated 70% of energy loss is through windows and doors. The special coating of Low-E glass is designed with energy efficiency in mind, but it provides a variety of additional benefits as well. This coating is so thin that it will not affect the amount of natural light the glass lets indoors-but note that it does have a light, blue-green tint compared to clear glass.Īs clear, normal glass does not have this specialized coating, temperature exchange from inside to outside occurs, which can make it difficult to regulate your home’s temperature. Therefore, Low-E glass will keep your home’s temperature cooler or warmer, depending on your climate and season. normal glass, the main difference is that Low-E glass has a thin, transparent coating applied to the inside of the interior side of the glass, reflecting the interior temperatures back inside to reduce energy loss through the glass and maintain indoor temperatures. Low-E stands for “Low-Emissivity”, emissivity meaning the amount of radiation emitted or absorbed. ![]() Let’s take a look at how Low-E glass is rated and what benefits it can provide vs. The type of glass you choose can be critical when it comes to factors such as energy efficiency, and depending on where you live, it can be worth it to invest in Low-E glass. If you’re considering an entry door with glass, you might be weighing your options with Low-E glass vs.
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