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R-Value

Ability of a material to retard the transmission of heat. The higher “R” value, the better insulating performance. Note: Garaga doors are made of high-density pressure-injected polyurethane. Up to R-18 insulation. Twice the thermal resistance of polystyrene.
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Countryside Garage Doors
430 Main Street, Oxford MA 01540 | Phone: (508) 987-8600 | Fax: 508-987-8626


Area served: Oxford, Sutton, Millbury, Grafton, Worcester, Shrewsbury, Paxton, Leicester, Spencer, Charlton.
Business hours: Monday to Friday form 7 AM to 4:30 PM; Evenings and Saturday by appointment.

 

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