-The NFRC ( National Fenestration Rating Council ) is a non-profit organization that administers the only uniform, independent rating and labeling system for the energy performance of windows and doors.
- Design Pressure rates structural grade and indicates long term performance of the window.
-U-Factor is a measure of heat transmission through a wall or window. The lower the U-Factor the better the insulating value.
-Solar Heat Gain Co-efficient (SHGC) measures how well a window blocks heat from sunlight. The SHGC is the fraction of the heat from the sun that enters through a window. It is expressed as a number between 0 and 1. The lower a window's SHGC, the less solar heat it transmits.
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Questions to ask prospective window companies:
Does your company manufacture their own windows?
Are your windows tested and certified by the NFRCŪ (National Fenestration Rating Council)?
Are your salespeople and installers covered under the company Liability and Worker Compensation? Are they bonded, background checked, and drug-screened?
Are the main frame and sashes of your windows fusion-welded?
Do your windows have more than 15 structural honeycombs, or do they rely on foam filling for strength and insulation?
Do you offer an anti-mold and mildew weather-stripping or do you use wool pile?
Do you offer a triple-glazed glass system?
Do you have DP (Design Pressure) ratings that exceed 60?
What is the U-Factor of your entire window as opposed to the glass only?
What is the Solar Heat Gain Co-efficient (SHGC) of your window?
Will your warranty provide coverage for accidental glass breakage and screen repairs?
Is your warranty transferable without any cost to me? Will you leave a copy of your warranty?
Take your time and become informed!
Gilkey Window Company
3625 Hauck Road
Cincinnati, OH 45241
Phone: 1-800-878-7771
Fax: 513-769-2567
Email: sales@gilkey.com |
