Menu
Menu
Your Cart

50mm Rocksilk RS100 Universal Insulation Slab Knauf (pack of 6)

50mm Rocksilk RS100 Universal Insulation Slab Knauf (pack of 6)
50mm Rocksilk RS100 Universal Insulation Slab Knauf (pack of 6)
50mm Rocksilk RS100 Universal Insulation Slab Knauf (pack of 6)
50mm Rocksilk RS100 Universal Insulation Slab Knauf (pack of 6)
Guide Price
50mm Rocksilk RS100 Universal Insulation Slab Knauf (pack of 6)
50mm Rocksilk RS100 Universal Insulation Slab Knauf (pack of 6)
50mm Rocksilk RS100 Universal Insulation Slab Knauf (pack of 6)
50mm Rocksilk RS100 Universal Insulation Slab Knauf (pack of 6)
50mm Rocksilk RS100 Universal Insulation Slab Knauf (pack of 6)
Guide Price: £54.60 (£65.52 inc VAT)
Price per m2: £12.64/m2 (£15.17 inc VAT)
  • Product Code: A1-535
  • Delivery Time: 2 - 3 working days
  • Brand: Knauf
  • (Tech. support: 08000304135)
  • Model: 1200x600 - 4.32m2
  • Weight: 21.60kg
Our ratings on 05-01-2026:
Google My Business Reviews
4.8 out of 5
Show other thicknesses

50mm Rocksilk RS100 Universal Insulation Slab Knauf (pack of 6)

Width: 600mm
Length: 1200mm
Pack Quantity: 6
Pack Coverage: 4.32m2
Density: 100kg/m3
Weight/m2: 5kg
Weight: 21.6kg
Thermal Conductivity: 0.035W/mK
R-Value: 1.4m2K/W
Fire Rating (Reaction to Fire): A1(Non-combustible)

50mm Knauf Rocksilk RS100 Universal Insulation Slab is a high-performance mineral wool insulation product suitable for a variety of applications. Manufactured from rock mineral wool using Knauf's unique bio-based ECOSE Technology binder, it provides excellent thermal and acoustic insulation properties. The mineral wool construction offers higher levels of sound absorption and reduction than other mainstream insulants. The slab has a higher density and a good thermal conductivity, helping to improve the energy efficiency of buildings and reduce heating and cooling costs. Knauf Rocksilk RS100 is non-combustible with Euroclass A1 reaction to fire classification, and the rock mineral wool has a melting temperature of over 1000°C to provide longer periods of fire resistance than other mainstream insulants. Knauf Rocksilk RS100 is also resistant to mould, mildew, and vermin, ensuring long-lasting performance and durability. Knauf Rocksilk RS100 is easy to cut and install, making it a versatile choice for insulating walls, floors, and roofs in both new build and refurbishment projects.

APPLICATION

Rocksilk RS100 Universal Slabs are used for a wide range of thermal and acoustic insulation applications in buildings, building services, and industry. This product can be used for insulating:
  • Internal partitions
  • Between timber and metal studs
  • Rafters and floor joists

CHARACTERISTICS

  • Manufactured from rock mineral wool using Knauf's bio-based ECOSE Technology binder
  • Provides excellent thermal and acoustic insulation performance
  • Mineral wool construction offers higher levels of sound absorption and reduction compared to other mainstream insulants
  • Density of 100kg/m³ and thermal conductivity of 0.035 W/mK
  • Non-combustible with Euroclass A1 reaction to fire classification
  • Rock mineral wool has a melting temperature over 1000°C for longer fire resistance
  • Odourless, non-hygroscopic, rot-proof, do not sustain vermin, and will not encourage the growth of fungi, mould, or bacteria
  • Lightweight
  • Easy to cut and install, making it versatile for walls, floors, and roofs
  • Sustainable insulation solution

CERTIFICATION

Manufactured in accordance with:

  • In conformity with BS EN 13162
  • ISO 50001 Energy Management Systems
  • ISO 14001 Environmental Management Systems
  • ISO 45001 Occupational Health and Safety Management Systems
  • ISO 9001 Quality Management Systems


100mm Rocksilk RS100 Universal Insulation Slab Knauf (pack of 3) 100mm Rocksilk RS100 Universal Insulation Slab Knauf (pack of 3)
Guide Price
Brand: Knauf Model: 1200x600 - 2.16m2
Delivery Time: 2 - 3 working days
100mm Knauf Rocksilk RS100 Universal Insulation Slab is a high-performance mineral wool insulation product suitable for a variety of applications. Manufactured from rock mineral wool using Knauf's unique bio-based ECOSE Technology binder, it provides excellent thermal and acoustic insulation propert..
Guide Price: £42.40
£50.88 inc VAT
Brand: Knauf Model: 10.3m x 1.2m - 12.36m2
Delivery Time: 1 - 2 days
100mm Knauf Earthwool Acoustic Insulation Roll is a high-performance, sustainable insulation solution designed to provide excellent acoustic and thermal performance. Manufactured from renewable and recycled materials, this insulation roll is split into two 600mm wide sections, making it easy to inst..
£57.85
£69.42 inc VAT
20mm Knauf Fireboard - High Performance Plasterboard 1200mm x 1800mm
Guide Price
Brand: Knauf Model: 1200mm x 1800mm - 2.16m2
Delivery Time: 5 - 10 Working Days
20mm Knauf Fireboard is a fleece-lined high performance square-edge plasterboard that provides up to two hours of fire protection in structural steel encasement. It is also ideal for use as fillets in deflection head details (an elastic polyurethane foam with intumescent firestop additives acts as a..
Guide Price: £52.36
£62.83 inc VAT
Brand: Knauf Model: 1200mm x 2400mm - 2.88m2
Delivery Time: 1 - 2 days
12.5mm Knauf Vapour Panel is a high-performance plasterboard featuring a metallised polyester foil that creates an effective vapour barrier, significantly limiting moisture diffusion. This makes it an ideal solution for lining the internal side of external walls, as well as the underside of roofs an..
£23.53
£28.24 inc VAT
Brand: Knauf Model: 20Kg
Delivery Time: 1 - 2 days
Knauf Fill & Finish Light Joint Filler is an easy-to-use product designed for fast and smooth joint finishing. This lightweight, ready-mixed compound is ideal for bedding tapes and finishing joints in drywall partitions and ceilings. When drying, it exhibits very low shrinkage, requiring only tw..
Brand: Knauf Model: 200mm x 50m
Delivery Time: 1 - 2 days
200mm Knauf Aquapanel Exterior Reinforcing Tape is used to reinforce joints in exterior walls where a coat of paint instead of render finish is to be applied on the Aquapanel Exterior Basecoat.INSTALLATIONApply Aquapanel Joint Filler over the joints and embed Aquapanel Exterior Reinforcing Tape.CERT..
£81.13
£97.36 inc VAT
This product is listed in the following categories and systems (click to show).