A comprehensive listing of references to foam sheathing in the model building codes, along with code adoption resources for your project location.

Select an option below to expand it for more information.

Look up state-by-state energy code adoption information on BCAP. (IECC/ASHRAE 90.1)

Look up state-by-state building code adoption information. (PDF) (IRC/IBC)

EnergyCodes.gov - Status of state energy code adoption

UpCodes - General adoption of building codes information

 

(2015 version of the I-Codes is referenced unless otherwise noted)

CONTINUOUS INSULATION (ci). Insulating material that is continuous across all structural members without thermal bridges other than fasteners and service openings. It is installed on the interior or exterior or is integral to any opaque surface of the building envelope (IECC Chapter 2 [Re] [Ce], ASHRAE 90.1)

FOAM PLASTIC INSULATION. A plastic that is intentionally expanded by the use of a foaming agent to produce a reduced-density plastic containing voids consisting of open or closed cells distributed throughout the plastic for thermal insulating or acoustical purposes and that has a density less than 20 pounds per cubic foot (pcf) (320 kg/m3) (IBC Chapter 2) unless it is used as interior trim (IRC Chapter 2)

INSULATING SHEATHING. An insulating board having a thermal resistance of not less than R-2 of the core material. (IRC Chapter 2)

INSULATING SHEATHING. An insulating board with a core material having a minimum R-value of R-2. (IRC Chapter 11)

(2015 version of the I-Codes is referenced unless otherwise noted)
  1. International Residential Code – Chapter 11 (energy code for one- and two-family dwellings and townhouses)
  2. International Energy Conservation Code – Section R402, Building Thermal Envelope (insulation requirements for residential buildings)
  3. International Energy Conservation Code – Section C402, Building Envelope Requirements (insulation requirements for commercial buildings)
  4. ASHRAE 90.1 – Energy Standard for Buildings Except Low-Rise Residential Buildings (alternative to IECC Section C402 for insulation requirements).
  5. International Energy Conservation Code​ – Section C402.5.1.2.1 Materials (recognizes certain FPIS materials as air-barrier materials and provides performance requirements for those not listed)
  1. Section R316 – Foam Plastics  (fire protection and material requirements for foam plastics)
  2. Section R703.4 – Water-resistive barrier (permits use of qualified and approved FPIS products as an “other approved water-resistive barrier”)
  3. Sections R703.15, R703.16, and R703.17 (cladding and furring connection requirements through foam sheathing)
  4. Section R702.7 – Vapor Retarders (provides generic vapor retarder requirements, but only address Class III Vapor Retarders with foam sheathing; for more comprehensive guidance for use with all types of vapor retarders refer to ABTG RR No. 1410-03 and Educational Presentation.
  5. Section R403.3 – Frost-protected shallow foundations (use of FPIS on foundations to reduce footing depths and foundation costs in cold climates while protecting against frost heave; may need to increase insulation for energy code compliance).
  6. Section R318.4 – Foam plastic protection (addresses use of foam plastics on foundations in areas subject to ‘very heavy’ termite infestation probability)
  7. Section R703.11.2 – Foam plastic sheathing (addresses applications of foam sheathing with vinyl siding to coordinate with wind-rating of vinyl siding)
  8. Section R703.3.3 – Fasteners (permits fastening of light-weight claddings directly through FPIS to a qualifying nail base sheathing with limitations)
  1. Chapter 26 – Foam Plastics (fire protection and material requirements for foam plastics, including foam sheathing products)
  2. Section 603 – Combustible Material in Types I and II Construction (permits use of FPIS in non-combustible building construction types in accordance with Chapter 26)
  3. Section 1403.13 – Foam plastic insulation (permits use of FPIS in exterior wall covering assemblies in compliance with Chapter 26)
  4. Section 1404.3 – Vapor retarders (provides generic vapor retarder requirements, but only address Class III Vapor Retarders with foam sheathing; for more comprehensive guidance for use with all types of vapor retarders refer to ABTG RR No. 1410-03 and Educational Presentation.
  5. Section 2603.10 – Wind resistance (references compliance with FS 100 standard for wind resistance rating of FPIS).
  6. Sections 2603.11, 2603.12, and 2603.13 (provides cladding and furring attachment requirements through FPIS to steel framing, wood framing, and concrete/masonry)
  7. Section 1809.5 – Frost Protection (references ASCE 32 standard for use of FPIS to reduce foundation depths and foundation cost in cold climates while protecting against frost heave)
  8. Section 2603.8 – Protection against termites (addresses use of foam plastics on foundations in areas subject to ‘very heavy’ termite infestation probability
  1. Section R316 – Foam Plastics  (fire protection and material requirements for foam plastics)
  2. Section R703.4 – Water-resistive barrier (permits use of qualified and approved FPIS products as an “other approved water-resistive barrier”)
  3. Sections R703.15, R703.16, and R703.17 (cladding and furring connection requirements through foam sheathing)
  4. Section R702.7 – Vapor Retarders (provides generic vapor retarder requirements, but only address Class III Vapor Retarders with foam sheathing; for more comprehensive guidance for use with all types of vapor retarders refer to ABTG RR No. 1410-03 and Educational Presentation.
  5. Section R403.3 – Frost-protected shallow foundations (use of FPIS on foundations to reduce footing depths and foundation costs in cold climates while protecting against frost heave; may need to increase insulation for energy code compliance).
  6. Section R318.4 – Foam plastic protection (addresses use of foam plastics on foundations in areas subject to ‘very heavy’ termite infestation probability)
  7. Section R703.11.2 – Foam plastic sheathing (addresses applications of foam sheathing with vinyl siding to coordinate with wind-rating of vinyl siding)
  8. Section R703.3.2 – Fasteners (permits fastening of light-weight claddings directly through FPIS to a qualifying nail base sheathing with limitations)
  1. Chapter 26 – Foam Plastics (fire protection and material requirements for foam plastics, including foam sheathing products)
  2. Section 603 – Combustible Material in Types I and II Construction (permits use of FPIS in non-combustible building construction types in accordance with Chapter 26)
  3. Section 1404.13 – Foam plastic insulation (permits use of FPIS in exterior wall covering assemblies in compliance with Chapter 26)
  4. Section 1405.3 – Vapor retarders (provides generic vapor retarder requirements, but only address Class III Vapor Retarders with foam sheathing; for more comprehensive guidance for use with all types of vapor retarders refer to ABTG RR No. 1410-03 and Educational Presentation.
  5. Section 2603.10 – Wind resistance (references compliance with FS 100 standard for wind resistance rating of FPIS).
  6. Sections 2603.11, 2603.12, and 2603.13 (provides cladding and furring attachment requirements through FPIS to steel framing, wood framing, and concrete/masonry)
  7. Section 1809.5 – Frost Protection (references ASCE 32 standard for use of FPIS to reduce foundation depths and foundation cost in cold climates while protecting against frost heave)
  8. Section 2603.8 – Protection against termites (addresses use of foam plastics on foundations in areas subject to ‘very heavy’ termite infestation probability
  1. Section R316 – Foam Plastics  (fire protection and material requirements for foam plastics)
  2. Section R703.2 – Water-resistive barrier (permits use of qualified and approved FPIS products as an “other approved water-resistive barrier”)
  3. Section R702.7 – Vapor Retarders (provides generic vapor retarder requirements, but only address Class III Vapor Retarders with foam sheathing; for more comprehensive guidance for use with all types of vapor retarders refer to ABTG RR No. 1410-03 and Educational Presentation.
  4. Section R403.3 – Frost-protected shallow foundations (use of FPIS on foundations to reduce footing depths and foundation costs in cold climates while protecting against frost heave; may need to increase insulation for energy code compliance).
  5. Section R318.4 – Foam plastic protection (addresses use of foam plastics on foundations in areas subject to ‘very heavy’ termite infestation probability)
  6. Section R703.11.2 – Foam plastic sheathing (addresses applications of foam sheathing with vinyl siding to coordinate with wind-rating of vinyl siding)
  7. Section R703.4 – Fasteners (permits fastening of light-weight claddings directly through FPIS to a qualifying nail base sheathing with limitations)
  1. Chapter 26 – Foam Plastics (fire protection and material requirements for foam plastics, including foam sheathing products)
  2. Section 603 – Combustible Material in Types I and II Construction (permits use of FPIS in non-combustible building construction types in accordance with Chapter 26)
  3. Section 1809.5 – Frost Protection (references ASCE 32 standard for use of FPIS to reduce foundation depths and foundation cost in cold climates while protecting against frost heave)
  4. Section 2603.9 – Protection against termites (addresses use of foam plastics on foundations in areas subject to ‘very heavy’ termite infestation probability)