Keep in mind that Celotex and other insulation board, tile and panel manufacturers have made a number of products, many of which may contain asbestos, but others are made with organic fiber, wood fiber, and cane fiber which may not contain asbestos. Modern roofing products do not contain asbestos.
Armstrong tiles and ceilings never and never had asbestos. Asbestos has been used in some Celotex products and / or may be included in some Celotex products, such as cellulose insulation boards, depending on when and where the product was manufactured. Celotex was reorganized in 1997.
Usually 1525% asbestos-amosite (brown) or a mixture of asbestos-amosite and chrysotile (white) in calcium silicate. Older plaques - and some marine plaques - can contain up to 40% asbestos. Simple fiber drainage: Asbestos insulation boards can break easily, resulting in extensive fiber drainage.
It consists of a lamination process formed between steps of aluminum foil glued together in a continuous laminator, the glue is a mixture of MDI and polyol. An additional propellant expands this adhesive into a foam which hardens and is cut into handy trays.
Celotex began manufacturing wood fiber insulation boards in Marrero, Louisiana in 1924. The Celotex Company of Great Britain was founded in 1925 and only that part of the company still exists. The number of lawsuits and complaints is said to be nearly 380,000, forcing the company to file for bankruptcy protection.
Product Features Celotex FR5000 is a revolutionary new fire resistant PIR insulation board specially designed for sloped ceilings and wall applications requiring Class O fire resistance.
Celotex doesn’t burn, so no smoke.
Lightweight and harmless material. Celotex products are NOT classified as dangerous for delivery. Occupational health and safety, etc.
SaintGobain Construction Products UK Ltd contains
However, some other brands of fibreboard, although made from cellulose, may contain asbestos due to cross-contamination.
Celotex is non-toxic, but the dust penetrates the lungs and causes irritation.
Celotex is classified as flammable when tested to BS476 and has Class 1 flame spread when tested to the same standard.
Asbestos can cause cancer and chronic respiratory disease if inhaled or ingested. These diseases usually develop long after exposure, with symptoms appearing 10 to 80 years later.
Homes built between 1930 and 1950 may have asbestos for insulation. Asbestos is present in structural paints and plasters on the joints of walls and ceilings. Its use was banned in 1977.
Bulk is another form of wall and ceiling insulation that can contain asbestos. This flexible insulation is usually gray-blue to white in color and presents a high risk of inhalation because it is not compressed.
The use of amosite (brown asbestos) was also banned in 1985 and is common in asbestos insulation boards (AIBs). The use of chrysotile (white asbestos) was only banned in 1999 and is common in cement products, artificial floors and floor tiles.
Recognition of asbestos insulation. Look for loose fibers between walls and ceilings. Look for light, airy fibers used for insulation. They can also be found in paper bags and glued into floor joists.
Most older concrete panels contain asbestos. This type of material looks like a thin piece of fiber-streaked concrete and has often been used as formwork, corrugated roofing, and soffit material.