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Therm-O-Spray (formerly Therm-O-Light Type 2) is a spray applied thermal and acoustical cellulose fibre insulation (CFI) manufactured from specially selected grades of recycled paper and paperboard products.

Therm-O-Spray is applied through the use of pneumatic blowing and spray equipment.

Therm-O-Spray can be used in new or existing buildings and is suitable for use in both above and below grade applications. It can be applied to any open vertical, horizontal or sloped surface (regardless of pitch) as well as any open cavity such as walls, floors, flat roofs and cathedral ceilings, which will be later closed.

Therm-O-Spray is treated with a special blend of non-corrosive borate fire retardant additives, which also provides the product with a resistance to mould growth, wood decay, insect damage and discourages rodent activity.