Hardboard Siding Asbestos

Is masonite siding made from or does it contain asbestos.

Hardboard siding asbestos.

Best answer no masonite and the class action suit prior to the 1980 s masonite had manufactured highquality hardboard siding also known as. Asbestos was also put into cement used on the exterior of buildings to help insulate the. When the siding is manufactured a combination of heat and pressure is used to consolidate the wood fibers with the other products resulting in a dense board with a smooth finish. When james hardie immigrated to australia from ireland in the late 1800s he began a tanning business.

If your house is older it may require abatement. It is often composed of compressed wood fiber wax resin and wood. Masonite also known as cardboard hardboard or clapboard is the primary siding used in tract homes throughout the united states. Masonite siding is made of wood chips held together with glue resin and wax.

Most older cement board products contain asbestos. Asbestos was not an ingredient in masonite hardboard products. He imported oil and hide tanning chemicals for his business and formed a partnership with andrew reid. A 1932 patent does describe the use of asbestos in the equipment used to produce masonite hardboard.

For that reason it is very slightly possible that one might detect a rare asbestos fiber in masonite if the hardboard producing equipment such as an asbestos coated roller was. Cement fiber siding made prior to the 80s had asbestos in it. Asbestos was used to make several exterior materials. Because fiber cement siding manufactured in north america after around 1978 was made without using asbestos in those later products and because those non asbestos fiber cement shingles included products that by eye were an exact visual match for their older asbestos containing brothers and sisters already installed a building built.