Menu
Menu
Your Cart

100mm Rocksilk RS45 Universal Insulation Slab Knauf (pack of 5)

100mm Rocksilk RS45 Universal Insulation Slab Knauf (pack of 5)
100mm Rocksilk RS45 Universal Insulation Slab Knauf (pack of 5)
100mm Rocksilk RS45 Universal Insulation Slab Knauf (pack of 5)
100mm Rocksilk RS45 Universal Insulation Slab Knauf (pack of 5)
Guide Price
100mm Rocksilk RS45 Universal Insulation Slab Knauf (pack of 5)
100mm Rocksilk RS45 Universal Insulation Slab Knauf (pack of 5)
100mm Rocksilk RS45 Universal Insulation Slab Knauf (pack of 5)
100mm Rocksilk RS45 Universal Insulation Slab Knauf (pack of 5)
100mm Rocksilk RS45 Universal Insulation Slab Knauf (pack of 5)
Guide Price: £45.60 (£54.72 inc VAT)
Price per m2: £12.67/m2 (£15.20 inc VAT)
5 or more £35.43 (£42.52 inc VAT)
10 or more £34.84 (£41.81 inc VAT)
20 or more £33.95 (£40.74 inc VAT)
  • Product Code: A1-68
  • Delivery Time: 3 - 5 days
  • Brand: Knauf
  • (Tech. support: 08000304135)
  • Model and Size: 1200x600 - 3.6m2
  • Weight: 16.20kg
Our ratings on 20-06-2025:
Google My Business Reviews
4.8 out of 5
Show other thicknesses

100mm Rocksilk RS45 Universal Insulation Slab Knauf (pack of 5)

Width: 600mm
Length: 1200mm
Pack Quantity: 5
Density: 45kg/m3
Weight/m2: 4.5kg
Weight: 16.2kg
Thermal Conductivity: 0.035W/mK
R-Value: 2.86m2K/W
Fire Rating (Reaction to Fire): A1(Non-combustible)

100mm Knauf Rocksilk RS45 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 RS45 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 RS45 is also resistant to mould, mildew, and vermin, ensuring long-lasting performance and durability. Knauf Rocksilk RS45 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 RS45 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 45kg/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


Brand: Knauf Model and Size: 1200x2700mm - 3.24m2
Delivery Time: 1 - 2 days
12.5mm Knauf Vidiwall is a dense fibreboard manufactured from gypsum and cellulose fibres from recycled paper that is suitable for areas of drywall construction where high impact resistance is required. Knauf Vidiwall is capable of providing increased durability, rigidity and mechanical strength com..
Get Best Price
Brand: Knauf Model and Size: 1200x2400 - 2.88m2
Delivery Time: 1 - 2 days
15mm Knauf Wallboard is a high-quality gypsum-based plasterboard commonly used for interior wall and ceiling applications. It consists of a solid gypsum core encased in a durable paper lining on both sides. The plasterboard provides a smooth, flat surface that is easy to decorate with paint, wallpap..
£13.90
£16.68 inc VAT
Add to Cart
Knauf Goldband Internal Plaster - 30 Kg
Guide Price
Brand: Knauf Model and Size: 30kg
Delivery Time: 1-3 working days
Knauf Goldband is a pre-prepared dry gypsum plaster designed to create smooth surfaces of any structure on walls and ceilings inside the buildings; used manually as a single layer gypsum plaster on all kinds of substrates. An easy to handle mineral product.CHARACTERISTICSMineral product, Easy to han..
Guide Price: £19.50
£23.40 inc VAT
Get Best Price
Brand: Knauf Model and Size: 1200 x 455 (6.55m2)
Delivery Time: 1 - 2 days
100mm Knauf DriTherm 37 Standard Cavity Slab is a high-performance insulation product specifically designed for use in external full-fill masonry cavity walls. These water-repellent glass mineral wool slabs provide exceptional thermal performance, making them an ideal choice for enhancing energy eff..
£44.71
£53.65 inc VAT
Add to Cart
Brand: Knauf Model and Size: 900mm x 1200mm - 1.08m2
Delivery Time: 7 - 10 days
12.5mm x 900mm x 1200mm Knauf Rooftop Aquapanel Cement Board is an extremely durable construction board highly resistant to moisture, mould and mildew growth. It can be used as a cover board above the insulation and as a substrate to take on the waterproofing layer, and as a substrate board on the s..
£66.76
£80.11 inc VAT
Add to Cart
Knauf Safeboard Joint Filler - 5kg
Guide Price
Brand: Knauf Model and Size: 5kg- 10m2
Delivery Time: 1 - 5 working days
Knauf Safeboard Joint Filler is a gypsum-based powder containing barium sulphate to provide radiation protection. Once mixed with water the jointing compound should be used for filling the joints between Knauf Safeboard (X-ray resistant plasterboard) and for covering the screw heads.CHARACTERISTICSX..
Guide Price: £39.90
£47.88 inc VAT
Get Best Price
This product is listed in the following categories and systems (click to show).