definition
strict definition
granulated cork
Granules of cork-oak bark used as loose thermal insulation in wall or roof spaces.
Granulated cork is a thermal insulation material made from the bark of the cork oak tree (Quercus suber). It generally performs well as an insulator, resists water absorption, and is basically non-toxic.
Small pieces of bark form the loose insulating material. Their granulated form distinguishes them from a rigid cork panel.
The cork is placed within the space being insulated. The material identity is separate from any finish covering the insulation.
Related definitions
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cellulose loose fill
Particles or loose pieces of organic plant fiber used as thermal insulation. -
fiberglass loose fill
Glass fibers stuffed loosely into wall or roof cavities for thermal insulation. -
hemp loose fill
Loose hemp fibers packed into wall or roof cavities as thermal insulation, generally from low-psychoactivity plant varieties. -
mineral wool loose fill
Unbound mineral fibers used as loose thermal insulation, including rock wool and blast-furnace slag wool. -
perlite loose fill
Loose expanded perlite particles used as thermal insulation, made by heating naturally occurring volcanic glass. -
straw bales
Bales of straw from grasses such as wheat or rice used as thermal insulation within a building assembly. -
vermiculite loose fill
Loose expanded particles of vermiculite mineral used as thermal insulation in building spaces.