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| What Do You Want To Know? |
Q. What is the difference between a hard coat and a soft coat?
A. A hard coat is a vinyl (pyrolytic) coating applied on-line during the initial float glass manufacturing process. Since the coating is applied while the glass is still in a semi-molten state, it becomes part of the glass.
A soft coat is a sputtered process that is applied after the float glass has been manufactured. The sputter coating is a surface coating and does not become part of the glass.
Q. What is "tempered" safety glass?
A. Tempered glass is a heat-treated glass that is ten times stronger than regular glass. If tempered glass does break it will shatter into small dime-size pieces unlike the long shards of regular glass.
Q. What three values are important when considering a specification for glazing material?
A. Light transmission, shading coefficient/solar heat gain coefficient, and U-value.
Q. What is U-Value?
A. The measurement of heat gain or loss through glazing due to environmental differences between outdoor and indoor air.
Q. What is shading coefficient (SC)?
A. It is the ratio of solar heat gain through a glass compared to 1/8" clear glass.
Q. What is light transmission?
A. The percentage of light that passes through a glazing material.
Q. What is Low-E glass?
A. Thin metallic layers are applied to the glass substrate during the float process, (pyrolytic or hard coat), or after the float process, (sputter or soft coat), giving the glass excellent solar control properties.
Q. What does the E stand for?
A. Emittance, which is the property that measures the ability of the glass to absorb and re-radiate energy. Low-Emissivity, (Low-E) glass indicates a better insulating product.
Q. Can tinted glass be used with a Low-E glass?
A. Yes. Tinted glass is very effective when used in conjunction with a Low-E glass. This combination will reduce excess heat gain and lower cooling costs.
Q. What is the best glass to use in warmer climates?
A. Glass with a low shading coefficient or low solar heat gain coefficient is preferred, rather than insulating (U or R) value, in areas where average temperatures tend to be higher. Glass with a low shading coefficient will help reduce the amount of heat gain into the building structure, reducing cooling costs.
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| The West's Exciting New Choice for Fabricated Glass Products!
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