in our plant
Marlboro makes its insulated glass units (two or three panes of glass in a hermetically sealed unit) in-house, from scratch.
A window's energy efficiency depends,
in large part, on the type of glass used.
Help control energy inside and out with a full range of ClimaGuard® Low-E products formulated for every North American region and climate.
Safety & Security
High-strength glass that helps protect against violent storms and break-ins.
Glass solutions that reduce noise from traffic, construction, neighbors and airports.
Fade & UV Protection
Products that block 99.9% of the sun’s UV rays for superior fade protection.
Acid-etched, patterned glass substrates and more.
Our insulated glass units have
a full range of features and options
to improve energy efficiency
Insulating dry airspace between its two panes
Desiccant to prevent condensation
Warm edge spacer to further reduce
heat and air transfer
Airspaces can also be filled with argon gas
and double-sealed to enhance the window's
We also offer a full range of glass coatings,
including soft coat low-emissivity (low-E)
and hard coat low-E, which can help reduce cooling and heating costs.
|Window Type||U-Value||Energy Ratings|
Glass that you can choose for your Insulated Glass Unit made in our plant.
Standard = Guardian 80/70 (LowEA)
Platinum = Cardinal 180/i89
In a cold climate a good U-factor for a window is between 0.965 and 2.214. (That,'s between R-6 and R-2.5). Lower is better with U-factor, the opposite of R-value, when higher is better.
Energy Rating (ER) is a value demonstrating the balance between U-factor, solar heat gain coefficient (SHGC) and air leakage. The higher the number, the more solar heat the product gains.
And experts advice for a new
home or retrofit project.
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We will not share it with any third party.
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