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 …

Jan 7, 2026 · Celotex was founded in the early 1920s as a fiberboard insulation company. The company grew throughout the 20th century and expanded its product line to include a variety …

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 …

3 days ago · 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 …

Mar 24, 2025 · Celotex is made from polyisocyanurate foam and aluminium foil and is one of the most thermally efficient products available. The foam is sandwiched between two aluminium …

Jul 14, 2025 · Celotex Corporation manufactures roofing & insulation products, once using asbestos in some products. Learn about asbestos lawsuits, at-risk occupations & more.

Celotex GA4000 'General Application', a rigid PIR foam insulation board with low emissivity foil on both faces, is suitable for the following applications: pitched and flat roofs, solid masonry and …

Celotex insulation boards are among the top choices for builders, tradespeople, and homeowners looking for high-performance thermal insulation. If you’d like to learn more about them, this …

May 17, 2022 · Detailed guide on how to install Celotex insulation boards in a range of applications, including what tools needed, and which boards.

Insulation Boards manufactured by Celotex. PIR and XPS insulation boards in a range of thicknesses and thermal performances.