Mineral Fiber Board
Superior fireproofing protection
When your project demands robust, reliable fire resistance, mineral fiber board fireproofing is the trusted choice for architects, builders and facility managers.
Superior Industrial Insulation delivers professional mineral board fireproofing installation for commercial, industrial and institutional buildings, ensuring your structure meets the highest standards of safety and code compliance.
What is mineral fiber board fireproofing?
Mineral fiber board fireproofing utilizes rigid, pre-formed boards made from non-combustible mineral wool or stone wool fibers. These dense, durable panels, which are engineered from basalt rock, slag and other minerals, are spun into fibers and compressed with binders to create fire-resistant boards. Designed for direct installation over steel, concrete, walls, ducts and enclosures, mineral board fireproofing delivers passive fire protection where it matters most.
How does mineral board fireproofing work?
The mineral wool board acts as a thermal barrier by slowing heat transfer to the protected substrate. This ensures temperature stability, as the structure remains stable and non-combustible at temperatures exceeding 1,800°F (1,000°C). Through compartmentalization, mineral fiber boards prevent structural collapse and limit fire spread between building compartments.
Key benefits of mineral board fireproofing
There are many reasons to utilize mineral board fireproofing on your next project, including:
- High Fire Resistance: Delivers fire ratings from 1 to 4 hours, depending on system design and board thickness.
- Non-Combustible: Rated A1 or Class A, it will not ignite or contribute to flame spread.
- Durable and Resilient: Impact-resistant, moisture-tolerant and vibration-resistant, it is ideal for high-traffic areas and mechanical spaces.
- Consistent Protection: Factory-controlled thickness ensures reliable, uniform fire performance.
- Easy Installation: Boards are cut to fit around beams, columns and penetrations for efficient, precise application.
- Sustainable: Often made with recycled content, low VOC emissions and can contribute to LEED credits.
Where is mineral board fireproofing used?
Mineral board fireproofing is commonly used on the following applications:
- Structural steel fireproofing (columns, beams, decks).
- Mechanical and electrical enclosures (ducts, cable trays).
- Fire-rated shaft walls and partitions.
- Pipe and duct insulation systems requiring fire containment.
- Commercial, industrial and institutional buildings.
Key factors to consider
When considering mineral board fireproofing, keep in mind the following:
- Secure Attachment: Boards may require mechanical fasteners or adhesives for proper installation.
- Tested Assemblies: Installation must follow tested and listed fire-rated assemblies (e.g., UL, ASTM E119) to ensure compliance.
- Non-Load-Bearing: Mineral boards provide fire protection and insulation. They are not designed as structural elements.
- Sealing: All joints and edges must be properly sealed to maintain the specified fire rating.