R Factor

R Factor is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Contractors Equipment & Supplies Insulation
• Insulation Materials

North American Industry Classification System (NAICS) Categories:

• Roofing, Siding, And Insulation Material Merchant Wholesalers > Insulation Material & Equipment > Insulation Material
• Other Building Material Dealers > Insulation & Energy Conservation Materials > Insulation Materials

Standard Industry Classification (SIC) Categories:

• Roofing, Siding, And Insulation Materials > Insulation Material & Equipment > Insulation Material
• Lumber & Other Building Materials > Insulation & Energy Conservation Materials > Insulation Materials