Wood Fiber Board Insulation Calculator

Wood fiber board is a vapor-open exterior insulation option for builders prioritizing drying potential and lower embodied carbon. Use this as early material planning only; confirm actual product datasheets and local assembly requirements.

Default material estimate

  • R-value per inch: R-3.7
  • Required thickness for R-20: 5.4 inches
  • Order area with 10% waste: 550 sq ft
  • Estimated material cost: $2,140

Material snapshot

  • Category: Rigid board
  • Form: Vapor-open wood fiber panels
  • Typical use: Exterior continuous insulation and rainscreen wall assemblies.

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