Insulated Glass Units | Marlboro windows

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Insulated
glass units

Manufacturing facilities
in our plant

Marlboro makes its insulated glass units (two or three panes of glass in a hermetically sealed unit) in-house, from scratch.

Intelligent
Glass Science

A window's energy efficiency depends,
in large part, on the type of glass used.

  • Energy Efficient

    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.

  • Sound Control

    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.

  • Privacy

    Acid-etched, patterned glass substrates and more.

Glass Finishes

Clear

Bronze

Grey

Frosted

Gluechip

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
insulating performance.

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
Standard Platinum Premium Platinum
PVC Casement 1.66 1.22 38 38
Awning 1.67 1.25 37 37
Fixed 1.68 1.23 46 45
Single Hung 1.78 1.31 39 39
Double Hung 1.78 1.34 38 38
Single Sliding 1.78 1.33 39 38
Double Sliding 1.78 1.36 37 37
Hybrid Casement 1.7 1.27 36 36
Awning 1.72 1.27 37 37
Fixed 1.71 1.23 45 44

Glass that you can choose for your Insulated Glass Unit made in our plant.

Standard = Guardian 80/70 (LowEA)

Platinum = Cardinal 180/i89

U-Value

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

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.

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