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QUESTION:

R factor is thermal resistance; a number denoting the resistance a material or system offers in the flow of heat, ft.2-°F-h/Btu - John Bonforte, Sr.What is R factor?

ANSWER:

R factor is thermal resistance; a number denoting the resistance a material or system offers in the flow of heat, ft.2-°F-h/Btu – John Bonforte, Sr.