Are polyurethane and white styrofoam the same? | Garaga

Are polyurethane and white styrofoam the same?

Not quite.

For equivalent thicknesses, polyurethane has a higher thermal insulation factor (R-16 or RSI: 2.8) than expanded or extruded polystyrene (Styrofoam).

In addition, since polyurethane strongly adheres to door surfaces, it provides twice as much resistance to flexion as polystyrene in a comparable door.

Remember, entrance doors are also insulated by injecting polyurethane foam. Polystyrene, for instance, is the material used to make coffee cups for protection in packaging.

               Polyurethane                                                    Styrofoam

Polyurethane insulation                     Polystyrene isulation

Burrell Overhead Door Limited
1853 Highway 7 west, Vaughan (ON) L4K 1V4 | Phone : (905) 669-1711 | Fax : (905) 669-1568

Area served : Toronto, Mississauga, Markham, Richmond Hill, Oakville, Maple and Vaughan.

Business hours : Monday to Friday from 9 AM to 5 PM and Saturday by appointment only.

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