Rock wool panels, with their Class A non-combustibility,
high-temperature stability, and durable fire performance, are
widely applied in critical building safety scenarios. For exterior
wall insulation— a major fire risk point in high-rises and
commercial complexes—they act as the core material in external,
internal, and sandwich insulation systems. Combined with rendering
mortar and alkali-resistant glass fiber mesh to form a composite
system, their non-combustibility prevents "chain-type" fires from
insulation layer ignition, blocks flames from entering buildings
through windows or gaps, and avoids becoming a fire carrier.
To meet building fire codes, rock wool panels construct
fire-resistant internal partitions and divide fire zones. With
thicknesses from 50mm to 150mm, they enable partitions to achieve a
1–4 hour fire resistance limit (adjustable by rating). Typically
installed between mall atriums and shops, office areas and server
rooms, or hotel guest floors and corridors, they restrict fires to
specific areas, prevent rapid spread, and create independent
evacuation spaces.
For roofs, which need protection against external sources like
fireworks and equipment malfunctions such as AC unit fires, rock
wool panels are laid directly on structural layers, covered with
waterproof membranes and protective panels to form an integrated
system with insulation, waterproofing, and fire resistance. They
block roof fires from spreading inward and maintain structural
integrity under high temperatures to prevent collapse, rain
leakage, or fire intrusion.
In pipeline and equipment insulation, rock wool panels (often
cylindrical "shells" for pipes) offer targeted protection. For fire
pipelines, they insulate against freezing while shielding pipes
from high-temperature damage during fires, ensuring unobstructed
water flow for suppression. Wrapped around air conditioning ducts,
they create fire-resistant ductwork to stop flame spread via
ventilation. For industrial equipment like boilers, heat
exchangers, and furnaces, they resist high-temperature deformation
and reduce overheating risks.
In high-safety venues with strict demands, their non-toxic, stable
performance provides enhanced protection. In data centers, they are
installed in server room walls and ceilings to insulate high
temperatures, protect precision equipment, and avoid toxic gases
harming staff. Hospitals use them in operating room partitions,
ward walls, and equipment rooms to minimize risks. For schools and
nursing homes, they are applied in classroom partitions, dorm
walls, and corridor ceilings as reliable fire barriers, meeting
standards for vulnerable populations.
