James Hardie® Building Products Our proprietary technology and formulation using cement, sand and cellulose fiber focus on creating high performance sustainable products and are proven over 3 decades on over 4 million homes. It is a time tested technology. We invest heavily in research and development, with a special emphasis on product quality and production efficiency to develop durable and low maintenance siding products and backerboard. Our siding products consist of a wide array of styles, textures and sizes all available with our ColorPlus® Technology. A multi-baked on factory finish, using state-of-the-art technology, available with a professionally developed color palette. All of this allows you to create a unique looking home that is all your own.