Ceramic fiber products can indeed be used in residential applications, particularly for insulation purposes. They are known for their high temperature resistance, thermal insulation, and acoustic properties, making them suitable for wall insulation to enhance energy efficiency and reduce noise. However, for flooring, ceramic fiber is less common due to its soft and fibrous nature, which may not provide the required durability and structural strength. Instead, other materials like ceramic tiles are more commonly used for flooring. It's also important to consider health and safety guidelines when using ceramic fiber products, as inhalation of fibers can pose health risks.