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Polystyrene and Polyurethane insulation in Overhead Sectional Garage Doors

What is the Difference between Polystyrene and Polyurethane Insulation in an Overhead Sectional Garage Door?

November 13, 2019

In the overhead sectional garage door industry, there is an ever-present push for a better-insulated product. Different manufacturers approach insulating their doors in one of two ways: Using polystyrene or polyurethane insulation. Both polystyrene and polyurethane are made up of polymers. Polystyrene is an older polymer than polyurethane, however, polyurethane is quickly becoming the insulation material of choice for overhead sectional garage doors.

Polystyrene vs. Polyurethane: Which is the Best Option for an Overhead Sectional Garage Door?

Insulation material of choice for overhead sectional garage doors: PolyurethanePolystyrene has been part of the garage door industry for decades and has been used in both residential and commercial product lines among many manufacturers. Made from synthetic polymers, expanded polystyrene (EPS) or extruded polystyrene (XPS) products are used to insulate the frame of the overhead sectional garage door. Polystyrene does provide thermal benefits as an insulation material, but in recent years it has been surpassed by a newer and better performing option: Polyurethane insulating foam.

Polyurethane expanding foam insulation is typically injected into the extrusions that make up an overhead sectional garage door to insulate it. ArmRLite calls this process our Energy Efficiency Package. The polyurethane foam expands to fill the entire aluminum extrusion so there are no gaps in insulation. The thermal benefits of polyurethane are known to be better than polystyrene as it offers an improved R-value per inch than that of polystyrene insulation.

For overhead sectional garage doors the better choice for insulation is polyurethane whenever possible. Whether the application be for a home, business, studio or restaurant if the overhead sectional garage door will be closing off a conditioned space polyurethane insulation the most efficient choice for thermal performance.

If you have any questions regarding ArmRLite’s options for insulated overhead sectional garage doors please feel free to contact us.

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