50mm Rockwool Flexi Insulation Slab 1200 x 400mm (pack of 12)

Guide Price
50mm Rockwool Flexi Insulation Slab 1200 x 400mm (pack of 12)
Guide Price: £36.06 (£43.27 inc VAT)
Price per m2: £6.26/m2 (£7.51 inc VAT)
- Product Code: A1-1148
- Delivery Time: 1 - 2 days
- Brand: Rockwool (Tech. support: 08712221780)
- Model and Size: 1200x400mm - 5.76m2
- Weight: 9.50kg
Our ratings on 29-04-2025:

4.7 out of 5 - Excellent


4.8 out of 5
50mm Rockwool Flexi Insulation Slab - 1200 x 400mm (pack of 12)
Width: 400mm
Length: 1200mm
Density: 33kg/m3
Weight/m2: 1.65kg
Weight: 9.5kg
Thermal Conductivity: 0.037W/mK
R-Value: 1.32m2K/W
50mm x1200mm x 400mm Rockwool Flexi Insulation Slab is a unique semi-rigid thermal and acoustic insulation product made from volcanic rock. It has a flexible edge, specifically developed using patented technology for a fast and easy, perfect friction fit between timber and metal frame systems. This flexi-edge ensures perfect fit between the slab and the surrounding frame, thus making sure that no gaps caused by contraction and expansion of the structure. This stays effective throughout the life span of the structure, thus minimizing the risk of cold bridging and also successfully blocks the passage of sound, improving the acoustics of the building. Rockwool Flexi Insulation Slabs are made from 97% recyclable and renewable material, They are environmentally friendly and they can lower the carbon footprint of the household.
CHARACTERISTICS
- Excellent thermal and acoustic performance,
- Easy to handle and, install requires no maintenance
- Has a flexible edge prevents gaps in the insulation,
- Non-combustible,
- Environmentally friendly, with no GWP and ODP potential,
- Helps comply with applicable regulations,
- No waste.
APPLICATION
- Separating walls and floors,
- Framed external walls,
- Framed internal partitions,
- Suspended floors,
- Pitched roofs.
Rockwool Flexi expands into the void, ensuring thermal and acoustic integrity, whilst rigid insulations may leave a 6 mm gap, or even fall out, when the timber dries out.
CERTIFICATION
- Achieves a reaction to fire classification of A1, as defined in EN13501-1,
- 1 hour fire resistant floor based on fire test to BS476: Part 21,
- The safety of Rockwool stone wool is confirmed by current UK and Republic of Ireland health & safety regulations and EU directive 97/69/EC: Rockwool fibres are not classified as a possible human carcinogen.
Brand: Rockwool
Model and Size: 1200mm x 600mm - 8.64m2
Delivery Time: 1 - 2 days
60mm Rockwool Flexi Insulation Slab is a unique semi-rigid thermal and acoustic insulation product made from volcanic rock. It has a flexible edge, specifically developed using patented technology for a fast and easy, perfect friction fit between timber and metal frame systems. This flexi-edge ensur..
Guide Price: £51.42
£61.70 inc VAT
Brand: Rockwool
Model and Size: 2500x1200mm - 3.00m2
Delivery Time: 1 - 2 days
220mm Rockwool Roll Loft Insulation is a multi-functional medium-density insulation roll, especially designed for improving thermal performance in roofs and lofts, and acoustic performance and sound reduction in suspended ceilings. It can be used in number of different applications in commercial, in..
Brand: Rockwool
Model and Size: 1000mm x 650mm - 2.60m2
Delivery Time: 1-3 working days
90mm Rockwool SP120 Firestop Cavity Slab systems form cavity fire stops within commercial and industrial buildings. The solution may be installed horizontally or vertically and is suitable for varying cavity widths in masonry and curtain wall constructions. The product has been designed as a one-pie..
Guide Price: £264.73
£317.68 inc VAT
Brand: Rockwool
Model and Size: 500mm x 1800m - 0.9m2
Delivery Time: 5 - 10 Working Days
80mm Rockwool ProRox WM 960, or Wired Mat, is a high-temperature insulation products made from mineral wool, often referred to as stone wool. These mats are designed for industrial applications where robust thermal performance and fire resistance are paramount. The insulation is reinforced with a wi..
Brand: Rockwool
Model and Size: RockLap 169/25mm
Delivery Time: 1 - 2 days
169mm RockLap H&V Pipe Sections are strong lengths of pre-formed insulation with a one piece, factory applied foil facing with integral self-adhesive lap. The integral lap ensures fast and easy installation: just snap the sections onto the pipe, peel off the backing tape and smooth down for a co..
Guide Price: £27.98
£33.58 inc VAT
Brand: Rockwool
Model and Size: RockLap 48/25mm
Delivery Time: 1 - 2 days
48mm RockLap H&V Pipe Sections are strong lengths of pre-formed insulation with a one piece, factory applied foil facing with integral self-adhesive lap. The integral lap ensures fast and easy installation: just snap the sections onto the pipe, peel off the backing tape and smooth down for a complet..
Guide Price: £10.65
£12.78 inc VAT
Categories
- Glass and Rock Wool Insulation
- Rock Wool Insulation
- Acoustic | Soundproofing
- Acoustic Insulation Slabs and Rolls
- Roof Insulation
- Flat Roof Insulation
- Pitched Roof Insulation
- Loft Insulation
- Floor Insulation
- Wall Insulation
- Internal Wall Insulation
- Partition Wall Insulation
- Slabs and Batts
- All Products