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Residential & Commercial Glazing Contractor, Window & Door Product Experts, CSLB #736844

700 Grant Ave, Novato, CA 94945  phone: 415-897-0088

 phone: 707-559-7047


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Click Here For More Frequently Asked Glass Questions:

Anatomy of Windows and Doors by Milgard Manufacturing:

Moving (X) vs. Active (O) Panels: In the business of windows and doors it’s important to always keep in mind which part of the product is going to move and which will stay stationary. Most companies use the X and O system, respectively representing active and stationary. We always view the window product from the outside and read left to right. From the outside: XO = Left is Active and Right is Stationary. XOX = Left and Right are active, while center is stationary. XX = both panels are active.

Spectrally Selective Low E Coatings: A coating that allows short wave energy (such as energy emitted from the sun) to pass through the glass while long-wave infrared  energy (such as heat from your furnace)  is reflected back into your home. Essentially the Low E coatings have been tuned to let energy into your home that heats up your items in your house, and then drastically slows the speed in which the heat is lost.

Solar Heat Gain Coefficient: The percentage of solar heat that is entering the structure through the window unit.

U-Factor (U-Value): The U-Factor is the rate of non-solar heat gain or loss, displayed as a percent. This factor is displayed on all NFRC (National Fenestration Rating Council) certified windows. The higher the number the less efficient the window will be in your home. In general, products such as wood, vinyl, and fiberglass, in addition to the use of dual pane glazed windows with Spectrally Selective LowE type coatings would have a better U-Value than the single pane aluminum windows that are found in many older homes.  Visit the Milgard or PPG website if you want to find out more, or give us a call and we can help with finding the appropriate products for your application.



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[Home] [Install and Repair] [Portfolio & Photos] [Glass Products] [Windows & Doors] [Entry & Interior Doors] [Showers & Mirrors] [Glass Deck Rails] [Screens] [Skylights] [Commercial Services] [Building Codes/Permits] [Terminology] [Free Estimates] [Contact Us]
Serving Marin, Sonoma, Napa, San Francisco From Our Showroom in Novato.  Glass, Windows, Doors, Mirrors, Showers, Screens and More.
Featuring window and door products from Marvin Windows and Doors, Andersen Windows and Doors, Fleetwood Windows and Doors, All Weather Windows, Milgard Windows and Doors, Essence Wood Windows by Milgard. 
Old Town Glass, Inc., 700 Grant Avenue, Novato, CA 94945, CA License# 736844,
EPA Lead Safe Firm Certificate #NAT-24540-1
Phone: 415-897-0088, Fax: 415-897-0099, Email: