Board Insulation (ZD)


Specification Details

8.5" x 11"
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Board Insulation (ZD)

Use this 3-part specification template to specify rigid board insulation for use in roof, wall, and floor assemblies.

Board insulation is a type of thermal insulation material that comes in the form of rigid boards or panels. Used in construction projects to provide a barrier against heat transfer.  Thus helping to regulate temperature within a building and increase energy efficiency.

Key characteristics and applications:

  1. Rigid Structure: Insulation is rigid and sturdy, making it easy to handle and install in various construction applications.
  2. Materials: It can be made from various materials, including foam plastics like expanded polystyrene (EPS), extruded polystyrene (XPS), polyisocyanurate (polyiso), or mineral wool. Each material has specific properties suited for different applications.
  3. Thermal Performance: Board insulation materials have excellent thermal resistance, which helps to reduce heat transfer through walls, roofs, and floors.
  4. Versatility: It can be used in a wide range of construction elements, including walls, roofs, floors, and ceilings.
  5. Moisture Resistance: Some insulation materials, particularly extruded polystyrene and polyisocyanurate, have good moisture resistance.  Making them suitable for applications where moisture control is important.
  6. Fire Resistance: Depending on the material, board insulation can have varying degrees of fire resistance. For instance, mineral wool is naturally fire-resistant, while foam plastics may require additional fire-retardant coatings.
  7. Sound Insulation: Certain types of board insulation, like mineral wool, provide good sound absorption properties, making them useful for reducing noise transmission within a building.
  8. Installation: Board insulation is typically installed by attaching it to the building structure using adhesive, mechanical fasteners, or a combination of both. It can be used in both new construction and retrofit projects.

Spec Notes:

  • Applicable building codes may dictate which types of insulation can be used in certain occupancies. Plastic foam insulations are typically flammable and must be separated from the interior of a structure by a non-combustible material such as gypsum board, while in some occupancies plastic foam insulations may not be used. Check the applicable building code.
  • NFPA 285 is an assembly test that determines the fire hazard characteristics of an entire exterior assembly rather than just the insulation. All materials used in an NFPA 285 assembly must be tested and approved for use in an NFPA-rated assembly.
  • The R-value of any insulation that uses a blowing agent, in this case polyisocyanurate and extruded polystyrene, decreases after the insulation is manufactured. Consequently, the R-value for this type of insulation is rated by LTTR – Long Term Thermal Resistance, measured 5 years after manufacture.


Recommended Manufacturers:

board insulation by T.clear


Related specification templates:



board insulation for commercial projects

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