Industry Code: 35401
This classification covers the manufacturing of fibreglass and zonolite insulation, as well as manufacturing of fibreglass strands. The manufacturing of paper insulation and plastics based products, such as polystyrene boards and polyurethane foam, are covered elsewhere.
Operation Details:
In fibreglass manufacturing, sand, fluorspar, barytes, limestone and soda ash are mixed in a batching silo. The mixture is carried by conveyors and layered onto a furnace, where exposed electrodes convert the mixture to molten glass (2500 degrees F).
The molten glass is drawn from the melter to spinning chambers, which contain microscopic holes. The molten glass is cooled and spun into fibres. As fibres are formed, they are sprayed with a binder and blown down onto a combining conveyor where the fibers form a cotton candy like mass.
As the fibres accumulate on the conveyor they form a blanket, the thickness being controlled by the speed of the conveyor. The blanket is conveyed through an oven where it is compressed and cured. After cooling, the fibre blanket is cut to width and length, sear marked, and then packaged.
The end product may take the form of bats, rolls, bales, compressed slabs (for roofing), blow wool or fibreboard.
In zonolite manufacturing, vermiculite ore is fed into large furnaces and the ore expands up to 12 times its size. The insulation is used in attics for masonry fill and horticultural purposes. It also can be sprayed on surfaces such as steel decks.
In fibreglass strand manufacturing, the raw materials (sand, magnesium, limestone and clay) are mixed in the batching silos, and transferred to the furnace where the mixture is transformed to molten glass. Through small holes in the bottom of the furnace the glass is extruded. When it leaves the furnace, it is sprayed with resin and water. The glass fibres are then wound onto spools via a winding machine. These spools are then re-spun with additional spools to make the appropriate strand width. Once the fibre strands are the desired tensile strength, the spools are placed on racks and put in an oven to cure for 12 -16 hours. After the curing is complete, the spools are cooled, packaged and sent to the client.
The end product is used in a variety of processes such as shower stall, bathtub manufacturing, window frames, filament winding and fibre optic cable.
Underwriting Considerations:
The manufacture of paper insulation from shredded recyclables is to be included under industry 27400, Waste Recycling, Salvaging & Reclaiming.
Injection molding or extrusion of plastic products from pellets is to be included under industry 37301, Manufacture of Plastic Products.
Industry Custom Pricing: Waiving Cost Relief Option
This industry has chosen to participate in Industry Custom Pricing effective January 1, 2009. Costs related to the aggravation of a pre-existing condition will not be removed from the experience record of employers classified in this industry. In return, the portion of premiums collected to fund retroactive cost relief has been removed from the industry rate, resulting in a reduction in WCB premium rates for the industry.
Premium Rate History:
Activities:
Fibreglass Insulation - Mfg
Insulation, Fibreglass - Mfg
Insulation, Mineral - Mfg
Zonolite Insulation - Mfg
Rate Group History:
This rate group was created from smaller rate groups effective January 1, 1994, generally to recognize similar automated processes in the manufacturing of various building materials.
This classification covers the manufacturing of fibreglass and zonolite insulation, as well as manufacturing of fibreglass strands. The manufacturing of paper insulation and plastics based products, such as polystyrene boards and polyurethane foam, are covered elsewhere.
Premium Rate History:
Activities:
Fibreglass Insulation - Mfg
Insulation, Fibreglass - Mfg
Insulation, Mineral - Mfg
Zonolite Insulation - Mfg
Operation Details:
In fibreglass manufacturing, sand, fluorspar, barytes, limestone and soda ash are mixed in a batching silo. The mixture is carried by conveyors and layered onto a furnace, where exposed electrodes convert the mixture to molten glass (2500 degrees F).
The molten glass is drawn from the melter to spinning chambers, which contain microscopic holes. The molten glass is cooled and spun into fibres. As fibres are formed, they are sprayed with a binder and blown down onto a combining conveyor where the fibers form a cotton candy like mass.
As the fibres accumulate on the conveyor they form a blanket, the thickness being controlled by the speed of the conveyor. The blanket is conveyed through an oven where it is compressed and cured. After cooling, the fibre blanket is cut to width and length, sear marked, and then packaged.
The end product may take the form of bats, rolls, bales, compressed slabs (for roofing), blow wool or fibreboard.
In zonolite manufacturing, vermiculite ore is fed into large furnaces and the ore expands up to 12 times its size. The insulation is used in attics for masonry fill and horticultural purposes. It also can be sprayed on surfaces such as steel decks.
In fibreglass strand manufacturing, the raw materials (sand, magnesium, limestone and clay) are mixed in the batching silos, and transferred to the furnace where the mixture is transformed to molten glass. Through small holes in the bottom of the furnace the glass is extruded. When it leaves the furnace, it is sprayed with resin and water. The glass fibres are then wound onto spools via a winding machine. These spools are then re-spun with additional spools to make the appropriate strand width. Once the fibre strands are the desired tensile strength, the spools are placed on racks and put in an oven to cure for 12 -16 hours. After the curing is complete, the spools are cooled, packaged and sent to the client.
The end product is used in a variety of processes such as shower stall, bathtub manufacturing, window frames, filament winding and fibre optic cable.
Underwriting Considerations:
The manufacture of paper insulation from shredded recyclables is to be included under industry 27400, Waste Recycling, Salvaging & Reclaiming.
Injection molding or extrusion of plastic products from pellets is to be included under industry 37301, Manufacture of Plastic Products.
Industry Custom Pricing: Waiving Cost Relief Option
This industry has chosen to participate in Industry Custom Pricing effective January 1, 2009. Costs related to the aggravation of a pre-existing condition will not be removed from the experience record of employers classified in this industry. In return, the portion of premiums collected to fund retroactive cost relief has been removed from the industry rate, resulting in a reduction in WCB premium rates for the industry.
Rate Group History:
This rate group was created from smaller rate groups effective January 1, 1994, generally to recognize similar automated processes in the manufacturing of various building materials.