Dense pack insulation is a type of insulation that is installed in a way that minimizes air pockets, resulting in increased thermal resistance. It is often used in attics, walls, and floors to improve energy efficiency and reduce heat loss. Notable manufacturers include CertainTeed and Owens Corning, who adhere to standards set by organizations like PHIUS. Government programs and research initiatives from DOE, NIST, ORNL, and PNNL promote innovation and energy savings. Industry publications like Insulation Outlook and Green Building & Design provide insights, while associations like NIA and NAIMA support the industry through advocacy and technical standards.