Glass Glazing System Options

Understanding of window glazing systems.

When shopping for replacement windows and doors for your Southern California home, it is important to have a basic understanding of window glazing systems so you can compare window products, and also accurately compare the quotes you receive from various replacement window companies.

A term you should become familiar with when it comes to replacement window glazing systems is Low-E. Low-E (short for low emissivity) coatings are the coatings on glass products designed to help keep out heat rays and the UV rays that can fade fabrics and wall coverings. Most window systems will have a Low-E rating. Outlined below are five different types of window glazing systems you will likely come across when shopping for replacement windows, along with the pros and cons of each type.

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Standard Dual Pane Glass

This glass unit will have two panes of glass, but no Low-E coating.

Pros:

  • Glass is very transparent, because there is no added coating
  • Fairly inexpensive

Cons:

  • It does not meet Title 24, which is a set of energy efficiency standards in California. When applying for a building permit in the state of California, you are required to submit a Title 24 report showing that your proposed building design complies with the California Title 24 energy standards.
  • Usually manufactured with a metallic spacer, which over time can cause seal failure

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Standard Dual Pane Glass with Single Layered Low-E

This unit has a single layer of Low-E coating, also known as LOWE, LOWE266, LOE and LOE2.

Pros:

  • Widely available in big box home improvement stores
  • Usually meets Title 24 standards
  • Most vinyl window manufacturers, like Milgard, Simonton, Plygem and Amsco, have it as a standard energy-efficient package on their windows

Cons:

  • Replacement windows with this type of glazing often have a basic design, and not many upgrade options
  • Usually manufactured with a metallic spacer, which can cause seal failure over time

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Double Strength Dual Glass Unit with Triple Layered Silver Metal Low-E366, Argon Gas Filled

This unit is built with two panes of double strength glass connected by a silicone memory foam spacer. It is equipped with three layers of silver metal Low-E coating and flood filled with argon gas, which guarantees a 90-95% fill rate.

Pros:

  • Highly energy efficient, dramatically reducing the amount of heat or cold that passes through the glass
  • Blocks up to 95% of harmful UV rays
  • Silicone memory foam spacer makes windows more energy and sound efficient than those manufactured with a metallic spacer
  • Available in Monte Verde and Bay View

Cons:

  • Usually only available through authorized dealers
  • Cost of windows with Low-E366 is usually higher than those with Low-E coating

Available in Monte Verde and Bay View window and door products.

View, download or print the Monte Verde brochure for more information.

View, download or print the Bay View brochure for more information.

Double Strength Dual Glass Unit with Triple Layered Silver Metal Low-E366, Argon Gas Filled, with Easy-Clean Coating

This window unit contains all of the features listed in the above description, with the addition of an easy-clean coating that decomposes dirt and other organic materials, allowing them to be easily rinsed away.

Pros:

  • Highly energy efficient, dramatically reducing the amount of heat or cold that passes through the glass
  • Blocks up to 95% of harmful UV rays
  • Uses a perforated silicone spacer, which is superior to a standard silicone spacer or metallic spacer when it comes to energy and sound efficiency
  • Easy-clean coating makes washing the glass easier, and keeps windows cleaner for a longer period of time
  • Available in almost all Anlin products

Cons:

  • Usually available only through authorized dealers
  • Cost is most likely higher than LOW-E366 window units

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Available in Anlin’s Catalina Series.

View, download or print the Anlin Catalina Series brochure for more information.

Double Strength Dual Glass Unit with 14-Layer Solar Reflective Coating Low-E4, Argon Gas Filled

his unit features Anlin’s QuadraTherm Ultimate Dual Pane Insulation System, with a patented 14-layer coating and a multi-layer heat retention coating that helps keep heat out on hot days, and keep heat in when it’s cold out. It also has the most advanced and energy-efficient spacer currently on the market, and is flood filled with argon gas.

Pros:

  • The industry’s most advanced energy-efficient dual pane system
  • Delivers up to 34% better energy performance than 2014 Energy Star requirements and even outperforms typical triple pane products

Cons:

  • Usually available only through authorized dealers
  • Cost of windows equipped with QuadraTherm is likely to be higher than Infinite-Plus windows

Available in Anlin’s QuadraTherm window and door products.

View, download or print the Anlin Catalina-QT Series brochure for more information.

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