Nov 9, 2017 · Celotex Insulating Lumber, the company's first product, was a cellulose fiber board made from bagasse or sugar cane fiber using a felting process, and produced in Celotex's New Orleans LA plant.

Celotex is a fiberboard made from bagasse (sugar cane waste after extraction of the juice), first produced in a factory in Marrero, Louisiana, outside of New Orleans. [4] In 1932, Celotex Corporation was spun off as an independent company.

May 30, 2022 · In the past, fiberboard sheathing was called blackjack, gray board, or buffalo board because rather than coated, the material was impregnated with asphalt. It was not the healthiest to cut and handle. The major brands of this material include Celotex Fiberboard, Homasote, and Hardboard Masonite.

Mar 26, 2025 · When Celotex was founded in the early 1920s, it produced fiberboard insulation. As the company grew in subsequent decades, it expanded and made other construction materials, including siding and roofing shingles.

Oct 23, 2008 · Re: old celotex sheathing behind brick Everything is dry but there is a lot of water staining on the sheathing especially above the windows. The water seems to have come from the brick cavity since the fiberboard is in not water resistant and has many open joints and holes.

Our photographs show Celotex® insulating board with an older Celotex fiberboard building sheathing board at above/left and a more recent Celotex insulating board product shown at the top of this page. Also see this closeup of an OLDER Celotex INSULATING SHEATHING BOARD [image file] product.

Mar 2, 2020 · Celotex & Dow polyisocyanurate foam board insulation: Here we describe the history & asbestos content of certain Celotex® & Dow polyisocyanurate foam board insulation products and we clarify the asbestos content in contemporary polyisocyanurate foam …

Jan 15, 2025 · Celotex manufactured asbestos insulation and construction materials from the 1920s to the 1980s, and it operated an asbestos mine until 1986. Asbestos litigation forced the company into bankruptcy in 1990. The Celotex Asbestos Settlement Trust contains an about $2.46 million to compensate victims.

Feb 25, 2003 · It is a celotex type of material used to back up the aluminum siding. It was touted as Insulated siding. The stuff does not burn well , we used to tear it off the off cuts ,throw it in the dumpster and take the aluminum to the scap yard.

May 16, 2020 · Any experience with renovating with celotex. my home has celotex from the 80’s I want to replace windows and siding. The steel diagonal bracing is in I have no racking structure […]