The R-Value is the insulation value of the door. Doors with higher insulation, R-Value, will keep your building warmer in the winter. This time of the year is an excellent time to really evaluate the importance and need for keeping the heat in.
A great option is doors featuring Intellicore® insulation technology which is a polyurethane foam that is injected into a door. The foam expands filling the whole cavity. This door is stronger, warmer and quieter providing R-values up to 22.2
http://sbadoors.com/products/overhead-doors/
Steel Building Accessories
1 .866.700.1136
1 .866.700.1136
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