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Terms to Know When Shopping for Patio Doors

Sliding glass patio doors add style and beauty to the exterior and interior of your home. They’re elegant, durable, and let you view more of the outdoors than regular doors. Energy efficiency is almost as important as beauty and style these days. Older types of patio doors were not always friendly to your utility bills, but newer doors offer more versatility and are highly energy efficient. Here are some terms you should remember when shopping for new patio doors in Central PA and Pittsburgh.

Low-E glass

Low-E is a special coating that is applied to the glass of a window. Low-E reflects infrared light and ultraviolet light without compromising the amount of VISIBLE light that is transmitted. Low-E coating reflects heat from both inside and outside your home, helping to keep your home warm during winter and cooler during summer. Low-E coating also protects your indoor furnishings from fading.

Triple pane glass

Three glass panes—with air or gas in between them—are much more energy efficient than single glass panes. Multiple panes not only offer superior efficiency, but also provide better sound insulation and impact resistance.

UV coating protection

Sliding glass patio doors in Central PA and Pittsburgh are treated with another type of coating to protect your furniture from the sun’s UV rays. It’s almost like sunscreen for your home.

U-factor and Solar Heat Gain Coefficient (SHGC)

The U-factor measures the thermal transmittance. The lower the number, the better it keeps heat and cold from passing through your door. The SHGC reflects the number of UV rays that passes through the glass. Ideally, the measurements must be equal to or less than 0.4 for homes, but to qualify for tax credits the numbers must be less than 0.3.

In addition to these energy-efficient benefits Zen Windows PA offers to Central PA and Pittsburgh homeowners, we offer many styles and color choices. Check out our gallery to start envisioning your new patio doors. Don’t forget to consider a screen door for summer, to allow fresh air in without letting bugs join your party.

Zen Windows Central PA and Pittsburgh offers free estimates for new installations of windows and patio doors. Give us a call, or request an online quote today!

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