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Contact the
Windowman Store:

352.375.6575

Email:
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Store Location:
206 NW 10th Avenue
Gainesville, FL 32601
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FAQ’s

Q: Do I need to replace my windows if the sash doesn’t stay up?

A: No. This can be solved by replacing or adjusting the balances. Most wood windows function on a pulley system which used rope and an iron counter weight.

Q: Do I need to replace my windows if the glass is fogged?

A: No. You can either replace the glass with more double pane glass or convert to single pane.

Q: Will the glass fog again?

A: Yes. The average life of double pane glass in Florida is less than fifteen years. There are certain factors that will decrease the life span of  double pane glass. Dark frames gather heat which transfers through to the glass. This cooks the seal and lets the moisture in. Too much sun will also cause seal failure regardless of frame color.

Q: Is there insulated glass that won’t fail?

A: An example of true insulated glass is found in a Thermos bottle. This is a continuous pocket of air with no seams that will leak. The most common “insulating” glass is actually double pane, two pieces of glass glued together with a spacer. When the glue fails, the moisture begins to seep in.

Q: Are these units filled with air or gas?

A: The units are generally filled with air, but can be filled with Argon and Krypton gas. These gases are used to reduce the transfer of heat between the inside and outside. These gases are better  than plain air, but are most likely to leak out.

Q: What does R value mean?

A: R – value is a measure of a material’s thermal resistance, or how well it holds back heat gain or loss. The average R value of an 1⁄2” double pane unit is 1.7. The average R value of a piece of single pane glass is .85. Rolled or bagged insulation can have an R value anywhere from R-22 to R 38.

Don’t get confused with the R (residential) rating of a window. This deals with structural strengths. The typical R rating can be between R-35 to R–45. This is not an insulating factor.

Q: What is U value or factor?

A: The U value deals with a window’s overall performance against heat loss. The R value is the inverse of the U value. You want a high R value and low U value.

Q: What is Low-E glass?

A: Low-E coatings are applied to glass in order to suppress radiative heat flow. The coatings are transparent to visible light. They do, however, show a slight green color. These coatings also reduce UV light which can fade furniture. 

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