100mm Rockwool RollBatt Loft Insulation

100mm Rockwool Loft Insulation is a premium stone wool insulation solution widely trusted across the UK and Ireland. This high-performance thermal product delivers outstanding acoustic benefits alongside superior fire protection. With an A1 Euroclass non-combustible rating, it guarantees exceptional safety standards and reliable performance.

Supplied in pre-cut widths of 400mm (three pieces per pack) or 600mm (two pieces per pack), available in 100mm and 150mm thicknesses, Rollbatt provides flexible solutions for multiple installation scenarios. All rolls arrive on pallets with protective waterproof wrapping to safeguard quality throughout delivery and storage.

Product specification

• Thickness (mm): 100
• Width: 1200mm
• Length: 4800mm
• Pieces Per Pack: 3
• Pack Coverage: 5.76m2
• Density: 22kg/m3
• Weight/m2: 2.2kg
• Weight: 12.67kg
• Thermal Conductivity: 0.044W/mK
• R-Value: 2.27m2K/W
• Fire Rating (Reaction to Fire): A1(Non-combustible)

Benefits

100mm Rollbatt is pre-split into either 2 x 600mm widths or 3 x 400mm widths. • Thermal conductivity of 0.044 W/mK • Non-combustible - Euroclass A1 classification as defined in EN 13501-1 • Multi-application for roof and loft spaces • Available as a complete roll, pre-cut widths, or pre-split, for easy installation • Durability – will not sag or slump

Application

100mm Rockwool Loft Roll products suit a wide range of building projects, from roof cavities in residential properties to overlay applications above suspended ceiling systems.

• Roofs
• Lofts
• Suspended ceilings
• Partitions
• Commercial, Industrial, Domestic applications

Thermal Performance

100mm Rockwool Roll, Twinroll, and Rollbatt products provide excellent thermal conductivity with a lambda (λ) value of 0.044 W/mK, meeting BS EN 13162:2012 + A1:2015 compliance requirements.

Fire Performance

100mm Rockwool Loft Roll products deliver non-combustible performance, achieving A1 reaction to fire classification under EN13501-1 standards.

Acoustic Performance

When integrated into properly engineered building systems, Rockwool 100mm loft Roll, Twinroll, and Rollbatt significantly improves sound reduction performance. The random fibre structure and material density of stone wool effectively absorbs sound energy and reduces vibration transmission, delivering substantial noise attenuation—particularly valuable in external wall constructions. Furthermore, Rockwool Acoustic insulation maintains dimensional stability and thickness consistency throughout the building's lifespan, guaranteeing reliable acoustic protection for many years.

More Information on 100mm Rockwool RollBatt Loft Insulation

• Manufaturer Link: Rockwool RollBatt
• 100mm Rockwool loft Insulation is a high-performance brand offering versatile applications.
• Have a browse of our Rockwool Insulation stock and filter by thickness or coverage on the left-hand side of the page. If you'd like to talk through the suitability of some products for your project, or get a quantity discount quotation please call us by phone on +4402038839057 , email sales@insulationbee or Live Chat - Lowest UK Rockwool Insulation Prices.