Steel Window & Door Frequently Asked Questions

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FAQs

How can I know which fire-rated window is required by law?

Download the PDF When is Fire Rated windows needed?
When is Fire Rated windows needed?

Download the PDF When is Fire Rated windows needed?
What is egress? Will my window meet egress?

Download the egress PDF
What is U-Factor and SHGC?

U-Factor represents the rate of heat flowing out of a window or door in an hour's time. The lower the number, the better the glass insulates. SHGC - Solar Heat Gain Coefficient rating measures the amount of solar radiation that enters as heat. The lower the number, the less heat the glass allows in.
What is the difference between a rough opening and a frame size?

A rough opening is the hole the window sets in. The frame size is the size of the unit.
Can I order my window in primer and paint it myself?

Optimum Window Mfg. has a wide verity of RAL Powder Coated finishes and colors but you are able to get them in primer if you choose.
Where is my UL label located on my fire rated window?

The UL label for fire rated window is located on the left jamb between the sash and the jamb (if any) at the bottom looking from the inside of your window to the outside.
How do I contact Optimum Window?

You may contact Optimum Window Mfg. by using the below information:

Optimum Window Mfg.
28 Canal Street
Ellenville N.Y. 12428
(845) 647-1900

sales@optimumwindow.com

If you would like to contact us on the web, please use our Web Contact Form Click Here.

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