90mm Rockwool SP120 Firestop Cavity Slab

The 90mm Rockwool SP120 Firestop Cavity Slab features lateral compression technology that creates a secure, tight seal between structural elements. Combining the SP FireStop Slab with SP FireStop fixing brackets, this system delivers straightforward installation that can be trimmed and fitted on-site with ease. This medium-density 90mm ROCKWOOL fire slab incorporates foil facing on both surfaces, complete with marked cutting guides for accurate placement. Engineered to restrict smoke movement and deliver up to 2 hours of fire resistance, the 90mm SP120 FireStop System achieves a fire resistance rating of up to 2 hours. It resists movement within ±3% tolerance and delivers excellent acoustic performance, significantly reducing sound transmission through wall and floor cavities.

Product specification

• Thickness: 90mm
• Width: 650mm
• Length: 1000mm
• Pack Quantity: 4
• Pack Coverage: 2.60
• Board Coverage: 0.65m2
• Density: 160kg/m3
• Weight/m2: 12kg
• Weight: 31.2kg
• Fire Rating (Reaction to Fire): A1(Non-combustible)
• Fire Protection (Resistance to Fire): Up to 2 hours to BS 476: Part 20 & BS EN 1366-4:2006

Benefits of the 90mm Rockwool SP120 Firestop Cavity Slab System:

1. Versatility: Ideal for numerous applications including masonry wall constructions, curtain walling systems, and substantial cavity voids.
2. Ease of Cutting: 90mm ROCKWOOL SP FireStop Slabs are engineered for straightforward on-site trimming using a sharp knife, saw, and straight edge.
3. Flexible Installation: The SP Firestop 60 & 120 can be positioned horizontally or vertically in cavity widths up to 400mm.
4. Fire Resistance: Delivers up to 2 hours of fire resistance, providing robust protection against smoke infiltration.
5. Simple Installation: The dry fit approach minimises on-site time and labour. Cutting along the 1000mm length facilitates easy compression fitting and accommodates fixing patterns. The SP Fixing Brackets can be hand-shaped and trimmed as required to achieve minimum 75% penetration into the fire stop material.
6. 90mm Rockwool Cavity Wall Insulation

Applications

90mm Rockwool SP120 Firestop Cavity Slab is designed for installation in masonry cavity walls and curtain wall systems within commercial and industrial environments.

Accreditations

• 90mm SP FireStop System has been tested and assessed to BS 476: Part 20. BS EN 1366-4: 2006 and classified to BS EN 13501-2
• Authorised for use in LUL surface and sub-surface premises (LUL Ref: 2244)

Subject to the application

The 90mm SP120 Firestop system should be installed in accordance with the guidance noted in the Technical Data sheet and brackets should be mechanically fixed using fixings suitable for the substrate.

Additional Offerings

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• Browse our Rockwool Insulation range and refine by thickness or coverage using the left-hand filters. For product suitability advice on your specific project, or to request a bulk discount quotation, contact us on +4402038839057 , email sales@insulationbee or use Live Chat - Competitive UK Rockwool Insulation Pricing.