High strength rockwool board (HP series) is specially designed and developed for various flexible waterproof roofing systems, which integrates the functions of heat preservation, heat insulation, fire prevention, sound insulation and noise reduction. With high compressive strength and point load, it can not only meet the needs of carrying personnel and related equipment weight during the construction and maintenance of the roof system, but also maintain stable thermal insulation, sound insulation and noise reduction and fire prevention effects. Mainly used in new, expansion and existing building roof, planting roof, flexible waterproof roof system.