Floor Construction Types

Floors above Basements and Crawlspaces Construction:
  1. 11.5-in wood floor joists @ 24 in o.c.
  2. 11.5-in horizontal air space + mineral fiber batt insulation
  3. 0.75-in wood underlayment
  4. 0.75-in wood subfloor
  5. 0.5-in carpet and fibrous pad

Effective R-values:


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