What Is The Best Window For Your Home?

You would discover from the early 1900s window that it has many ripples in the single pane of glass set into a wooden frame – which is really different from the most energy-efficient, double-paned, vinyl framed windows of today.
In the 1970s, insulated windows – two or more pieces of glass with dead air between them – made their first appearance in the 1970′s, amidst the steady improvements of window glass technology through the decades. The windows limited the temperature change and cut down on condensation by providing dead air space.
Ten years later, low-e glass was introduced. Preventing heat and ultra-violet (UV) rays from coming through , low-e coatings are extremely thin layers of metallic oxide that are bonded to the surface of the glass in the window. Due to this, windows have become more effective at keeping heat out during summer and in during winter.

Making up most of the sun’s energy, infrared or UV rays are invisible to the human eye. Causing sunburns are not the only thing UV rays can do, they can also fade furnishings and finishes inside the home. Infrared rays produce heat, whether on the asphalt outside, or from the furniture and flooring indoors. This heat is retained and released as the air around them cools, meaning infrared heat can still affect your home after the sun sets, if you let it in.

However, low-e coated glass reflects certain portions of the light spectrum back out through the windows, so the inside of the home stays cooler, not only during the sunny part of the day, but later as well.

The low-e glass comes in hard coat and soft coat. To produce the hard coat, tin is directly applied to the molten glass. A thin layer of silver is applied to the glass in a vacuum in the case of the soft coat. Always sandwiched with another piece of glass, soft coat low-e glass is easily damaged. To prevent oxidation and to act as an additional insulator, Argon gas is often used between panes.

The heat mirror is the third type of low-e glass, which includes a thin polyester sheet suspended between the two panes of a dual pane window. The coating reflects radiant heat and the sheet decreases heat loss, making this the best option for extreme climates. The film increases insulation by as much as 100 percent while at the same time blocking as much as 99.5 percent of UV light.

Make sure the windows you think you want are appropriate for the climate that you live in before purchasing them. For that, you will need to look for the Energy Star or National Fenestration Rating Council (NFRC) label. The U-value and the solar heat gain coefficient (SHGC) for the window should be included in the NFRC label. Although there is no SHGC requirement because solar heat gain is not an issue to comply with Energy Star standards, in the colder areas the U-factor should be .35 or less, while in the hottest areas windows should have an SHCG rating of .4 or lower and a U-factor of .75 or lower.

Author bio: William Phillips is a freelance writer and currently publishes reviews of best web hosting and unlimited hosting. Top pick ChimeHost offers one of the most secure and cheapest web hosting service packages for both personal and small business web hosting.

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