These slabs are particularly suitable for acoustic infills in partitions and ceilings, providing a high level of control of both airborne and structure-borne sound. They are also suitable for acoustic absorption in the linings of buildings.
Mineral slabs of a density of 45 kg/m³ have now become the de-facto standard for normal domestic insulation purposes.
Densities above this level are particularly good for use in sound studios and commercial and industrial areas where, for example, machine noise is prevalent. .
For general building applications (Lambda 90:90) at temperature 10 degrees C:
Rockwool RWA45 slab = 0.035 W/mK | Rockwool RW3 slab = 0.034 W/mK | Rockwool RW5 slab = 0.034 W/mK
Rockwool Building Slab RWA45 25mm, 16 x 0.6x1.2m = 11.52m² - ranging from £1.32 to £1.38 per m²
1 plus packs @ £1.38 per m² / £0.99 per slab = £15.86 (£19.03 inc-VAT) per pack
6 plus packs @ £1.36 per m² / £0.98 per slab = £15.72 (£18.86 inc-VAT) per pack
12 plus packs @ £1.35 per m² / £0.97 per slab = £15.58 (£18.70 inc-VAT) per pack
18 plus packs @ £1.34 per m² / £0.97 per slab = £15.45 (£18.54 inc-VAT) per pack
24 plus packs @ £1.33 per m² / £0.96 per slab = £15.31 (£18.37 inc-VAT) per pack
30 plus packs @ £1.32 per m² / £0.95 per slab = £15.17 (£18.20 inc-VAT) per pack
Rockwool Building Slab RWA45 30mm, 12 x 0.6x1.2m = 8.64m² - ranging from £1.70 to £1.78 per m²
1 plus packs @ £1.78 per m² / £1.28 per slab = £15.39 (£18.47 inc-VAT) per pack
8 plus packs @ £1.77 per m² / £1.27 per slab = £15.25 (£18.30 inc-VAT) per pack
16 plus packs @ £1.75 per m² / £1.26 per slab = £15.12 (£18.14 inc-VAT) per pack
24 plus packs @ £1.73 per m² / £1.25 per slab = £14.99 (£17.99 inc-VAT) per pack
32 plus packs @ £1.72 per m² / £1.24 per slab = £14.85 (£17.82 inc-VAT) per pack
40 plus packs @ £1.70 per m² / £1.23 per slab = £14.72 (£17.66 inc-VAT) per pack
Rockwool Building Slab RWA45 40mm, 12 x 0.6x1.2m = 8.64m² - ranging from £2.26 to £2.36 per m²
1 plus packs @ £2.36 per m² / £1.70 per slab = £20.41 (£24.49 inc-VAT) per pack
8 plus packs @ £2.34 per m² / £1.69 per slab = £20.23 (£24.28 inc-VAT) per pack
16 plus packs @ £2.32 per m² / £1.67 per slab = £20.05 (£24.06 inc-VAT) per pack
24 plus packs @ £2.30 per m² / £1.66 per slab = £19.87 (£23.84 inc-VAT) per pack
32 plus packs @ £2.28 per m² / £1.64 per slab = £19.70 (£23.64 inc-VAT) per pack
40 plus packs @ £2.26 per m² / £1.63 per slab = £19.52 (£23.42 inc-VAT) per pack
Rockwool Building Slab RWA45 50mm, 9 x 0.6x1.2m = 6.48m² - ranging from £2.75 to £2.88 per m²
1 plus packs @ £2.88 per m² / £2.07 per slab = £18.66 (£22.39 inc-VAT) per pack
8 plus packs @ £2.85 per m² / £2.06 per slab = £18.50 (£22.20 inc-VAT) per pack
16 plus packs @ £2.83 per m² / £2.04 per slab = £18.34 (£22.01 inc-VAT) per pack
24 plus packs @ £2.80 per m² / £2.02 per slab = £18.17 (£21.80 inc-VAT) per pack
32 plus packs @ £2.78 per m² / £2.00 per slab = £18.01 (£21.61 inc-VAT) per pack
40 plus packs @ £2.75 per m² / £1.98 per slab = £17.85 (£21.42 inc-VAT) per pack
Rockwool Building Slab RWA45 60mm, 8 x 0.6x1.2m = 5.76m² - ranging from £3.42 to £3.57 per m²
1 plus packs @ £3.57 per m² / £2.57 per slab = £20.59 (£24.71 inc-VAT) per pack
8 plus packs @ £3.54 per m² / £2.55 per slab = £20.41 (£24.49 inc-VAT) per pack
16 plus packs @ £3.51 per m² / £2.53 per slab = £20.23 (£24.28 inc-VAT) per pack
24 plus packs @ £3.48 per m² / £2.51 per slab = £20.05 (£24.06 inc-VAT) per pack
32 plus packs @ £3.45 per m² / £2.48 per slab = £19.87 (£23.84 inc-VAT) per pack
40 plus packs @ £3.42 per m² / £2.46 per slab = £19.69 (£23.63 inc-VAT) per pack
Rockwool Building Slab RWA45 75mm, 6 x 0.6x1.2m = 4.32m² - ranging from £4.12 to £4.31 per m²
1 plus packs @ £4.31 per m² / £3.10 per slab = £18.61 (£22.33 inc-VAT) per pack
10 plus packs @ £4.27 per m² / £3.07 per slab = £18.44 (£22.13 inc-VAT) per pack
20 plus packs @ £4.23 per m² / £3.05 per slab = £18.28 (£21.94 inc-VAT) per pack
30 plus packs @ £4.19 per m² / £3.02 per slab = £18.12 (£21.74 inc-VAT) per pack
40 plus packs @ £4.16 per m² / £2.99 per slab = £17.96 (£21.55 inc-VAT) per pack
50 plus packs @ £4.12 per m² / £2.97 per slab = £17.80 (£21.36 inc-VAT) per pack
Rockwool Building Slab RWA45 100mm, 4 x 0.6x1.2m = 2.88m² - ranging from £5.46 to £5.71 per m²
1 plus packs @ £5.71 per m² / £4.11 per slab = £16.44 (£19.73 inc-VAT) per pack
10 plus packs @ £5.66 per m² / £4.08 per slab = £16.30 (£19.56 inc-VAT) per pack
20 plus packs @ £5.61 per m² / £4.04 per slab = £16.16 (£19.39 inc-VAT) per pack
30 plus packs @ £5.56 per m² / £4.00 per slab = £16.01 (£19.21 inc-VAT) per pack
40 plus packs @ £5.51 per m² / £3.97 per slab = £15.87 (£19.04 inc-VAT) per pack
50 plus packs @ £5.46 per m² / £3.93 per slab = £15.73 (£18.88 inc-VAT) per pack
Rockwool Building Slab RW3 25mm, 16 x 0.6x1.2m = 11.52m² - ranging from £2.01 to £2.10 per m²
1 plus packs @ £2.10 per m² / £1.51 per slab = £24.15 (£28.98 inc-VAT) per pack
6 plus packs @ £2.08 per m² / £1.50 per slab = £23.94 (£28.73 inc-VAT) per pack
12 plus packs @ £2.06 per m² / £1.48 per slab = £23.73 (£28.48 inc-VAT) per pack
18 plus packs @ £2.04 per m² / £1.47 per slab = £23.52 (£28.22 inc-VAT) per pack
24 plus packs @ £2.02 per m² / £1.46 per slab = £23.31 (£27.97 inc-VAT) per pack
30 plus packs @ £2.01 per m² / £1.44 per slab = £23.10 (£27.72 inc-VAT) per pack
Rockwool Building Slab RW3 30mm, 15 x 0.6x1.2m = 10.8m² - ranging from £2.40 to £2.51 per m²
1 plus packs @ £2.51 per m² / £1.81 per slab = £27.14 (£32.57 inc-VAT) per pack
6 plus packs @ £2.49 per m² / £1.79 per slab = £26.91 (£32.29 inc-VAT) per pack
12 plus packs @ £2.47 per m² / £1.78 per slab = £26.67 (£32.00 inc-VAT) per pack
18 plus packs @ £2.45 per m² / £1.76 per slab = £26.44 (£31.73 inc-VAT) per pack
24 plus packs @ £2.43 per m² / £1.75 per slab = £26.20 (£31.44 inc-VAT) per pack
30 plus packs @ £2.40 per m² / £1.73 per slab = £25.96 (£31.15 inc-VAT) per pack
Rockwool Building Slab RW3 40mm, 10 x 0.6x1.2m = 7.2m² - ranging from £3.17 to £3.31 per m²
1 plus packs @ £3.31 per m² / £2.38 per slab = £23.82 (£28.58 inc-VAT) per pack
6 plus packs @ £3.28 per m² / £2.36 per slab = £23.62 (£28.34 inc-VAT) per pack
12 plus packs @ £3.25 per m² / £2.34 per slab = £23.41 (£28.09 inc-VAT) per pack
18 plus packs @ £3.22 per m² / £2.32 per slab = £23.20 (£27.84 inc-VAT) per pack
24 plus packs @ £3.19 per m² / £2.30 per slab = £23.00 (£27.60 inc-VAT) per pack
30 plus packs @ £3.17 per m² / £2.28 per slab = £22.79 (£27.35 inc-VAT) per pack
Rockwool Building Slab RW3 50mm, 8 x 0.6x1.2m = 5.76m² - ranging from £3.83 to £4.00 per m²
1 plus packs @ £4.00 per m² / £2.88 per slab = £23.06 (£27.67 inc-VAT) per pack
6 plus packs @ £3.97 per m² / £2.86 per slab = £22.86 (£27.43 inc-VAT) per pack
12 plus packs @ £3.93 per m² / £2.83 per slab = £22.66 (£27.19 inc-VAT) per pack
18 plus packs @ £3.90 per m² / £2.81 per slab = £22.46 (£26.95 inc-VAT) per pack
24 plus packs @ £3.86 per m² / £2.78 per slab = £22.26 (£26.71 inc-VAT) per pack
30 plus packs @ £3.83 per m² / £2.76 per slab = £22.06 (£26.47 inc-VAT) per pack
Rockwool Building Slab RW3 60mm, 6 x 0.6x1.2m = 4.32m² - ranging from £4.86 to £5.08 per m²
1 plus packs @ £5.08 per m² / £3.66 per slab = £21.93 (£26.32 inc-VAT) per pack
6 plus packs @ £5.03 per m² / £3.62 per slab = £21.74 (£26.09 inc-VAT) per pack
12 plus packs @ £4.99 per m² / £3.59 per slab = £21.55 (£25.86 inc-VAT) per pack
18 plus packs @ £4.94 per m² / £3.56 per slab = £21.36 (£25.63 inc-VAT) per pack
24 plus packs @ £4.90 per m² / £3.53 per slab = £21.17 (£25.40 inc-VAT) per pack
30 plus packs @ £4.86 per m² / £3.50 per slab = £20.98 (£25.18 inc-VAT) per pack
Rockwool Building Slab RW3 75mm, 6 x 0.6x1.2m = 4.32m² - ranging from £5.30 to £5.54 per m²
1 plus packs @ £5.54 per m² / £3.99 per slab = £23.95 (£28.74 inc-VAT) per pack
6 plus packs @ £5.50 per m² / £3.96 per slab = £23.74 (£28.49 inc-VAT) per pack
12 plus packs @ £5.45 per m² / £3.92 per slab = £23.54 (£28.25 inc-VAT) per pack
18 plus packs @ £5.40 per m² / £3.89 per slab = £23.33 (£28.00 inc-VAT) per pack
24 plus packs @ £5.35 per m² / £3.85 per slab = £23.12 (£27.74 inc-VAT) per pack
30 plus packs @ £5.30 per m² / £3.82 per slab = £22.91 (£27.49 inc-VAT) per pack
Rockwool Building Slab RW3 100mm, 4 x 0.6x1.2m = 2.88m² - ranging from £7.71 to £8.06 per m²
1 plus packs @ £8.06 per m² / £5.80 per slab = £23.21 (£27.85 inc-VAT) per pack
6 plus packs @ £7.99 per m² / £5.75 per slab = £23.00 (£27.60 inc-VAT) per pack
12 plus packs @ £7.92 per m² / £5.70 per slab = £22.80 (£27.36 inc-VAT) per pack
18 plus packs @ £7.85 per m² / £5.65 per slab = £22.60 (£27.12 inc-VAT) per pack
24 plus packs @ £7.78 per m² / £5.60 per slab = £22.40 (£26.88 inc-VAT) per pack
30 plus packs @ £7.71 per m² / £5.55 per slab = £22.20 (£26.64 inc-VAT) per pack
Rockwool ProRox SL 950 50mm, 6 x 0.6x1.2m = 4.32m² - ranging from £6.04 to £6.32 per m²
1 plus packs @ £6.32 per m² / £4.55 per slab = £27.29 (£32.75 inc-VAT) per pack
13 plus packs @ £6.26 per m² / £4.51 per slab = £27.05 (£32.46 inc-VAT) per pack
27 plus packs @ £6.20 per m² / £4.47 per slab = £26.80 (£32.16 inc-VAT) per pack
40 plus packs @ £6.15 per m² / £4.43 per slab = £26.56 (£31.87 inc-VAT) per pack
54 plus packs @ £6.09 per m² / £4.39 per slab = £26.32 (£31.58 inc-VAT) per pack
68 plus packs @ £6.04 per m² / £4.35 per slab = £26.08 (£31.30 inc-VAT) per pack
Rockwool ProRox SL 950 75mm, 4 x 0.6x1.2m = 2.88m² - ranging from £7.12 to £7.44 per m²
1 plus packs @ £7.44 per m² / £5.36 per slab = £21.44 (£25.73 inc-VAT) per pack
18 plus packs @ £7.38 per m² / £5.32 per slab = £21.26 (£25.51 inc-VAT) per pack
37 plus packs @ £7.32 per m² / £5.27 per slab = £21.07 (£25.28 inc-VAT) per pack
55 plus packs @ £7.25 per m² / £5.22 per slab = £20.88 (£25.06 inc-VAT) per pack
74 plus packs @ £7.18 per m² / £5.17 per slab = £20.69 (£24.83 inc-VAT) per pack
94 plus packs @ £7.12 per m² / £5.13 per slab = £20.50 (£24.60 inc-VAT) per pack
Rockwool ProRox SL 950 100mm, 3 x 0.6x1.2m = 2.16m² - ranging from £9.52 to £9.97 per m²
1 plus packs @ £9.97 per m² / £7.18 per slab = £21.53 (£25.84 inc-VAT) per pack
14 plus packs @ £9.88 per m² / £7.11 per slab = £21.33 (£25.60 inc-VAT) per pack
28 plus packs @ £9.79 per m² / £7.05 per slab = £21.14 (£25.37 inc-VAT) per pack
42 plus packs @ £9.70 per m² / £6.98 per slab = £20.95 (£25.14 inc-VAT) per pack
56 plus packs @ £9.61 per m² / £6.92 per slab = £20.76 (£24.91 inc-VAT) per pack
71 plus packs @ £9.52 per m² / £6.86 per slab = £20.57 (£24.68 inc-VAT) per pack
Rockwool Building Slab RW5 25mm, 8 x 0.6x1.2m = 5.76m² - ranging from £2.81 to £2.94 per m²
1 plus packs @ £2.94 per m² / £2.12 per slab = £16.94 (£20.33 inc-VAT) per pack
15 plus packs @ £2.91 per m² / £2.10 per slab = £16.79 (£20.15 inc-VAT) per pack
30 plus packs @ £2.89 per m² / £2.08 per slab = £16.64 (£19.97 inc-VAT) per pack
46 plus packs @ £2.86 per m² / £2.06 per slab = £16.49 (£19.79 inc-VAT) per pack
62 plus packs @ £2.84 per m² / £2.04 per slab = £16.34 (£19.61 inc-VAT) per pack
77 plus packs @ £2.81 per m² / £2.02 per slab = £16.19 (£19.43 inc-VAT) per pack
Rockwool Building Slab RW5 30mm, 8 x 0.6x1.2m = 5.76m² - ranging from £3.89 to £4.07 per m²
1 plus packs @ £4.07 per m² / £2.93 per slab = £23.45 (£28.14 inc-VAT) per pack
14 plus packs @ £4.03 per m² / £2.91 per slab = £23.24 (£27.89 inc-VAT) per pack
28 plus packs @ £4.00 per m² / £2.88 per slab = £23.03 (£27.64 inc-VAT) per pack
42 plus packs @ £3.96 per m² / £2.85 per slab = £22.82 (£27.38 inc-VAT) per pack
56 plus packs @ £3.93 per m² / £2.83 per slab = £22.62 (£27.14 inc-VAT) per pack
70 plus packs @ £3.89 per m² / £2.80 per slab = £22.41 (£26.89 inc-VAT) per pack
Rockwool Building Slab RW5 40mm, 6 x 0.6x1.2m = 4.32m² - ranging from £5.47 to £5.72 per m²
1 plus packs @ £5.72 per m² / £4.12 per slab = £24.71 (£29.65 inc-VAT) per pack
15 plus packs @ £5.67 per m² / £4.08 per slab = £24.50 (£29.40 inc-VAT) per pack
29 plus packs @ £5.62 per m² / £4.05 per slab = £24.28 (£29.14 inc-VAT) per pack
44 plus packs @ £5.57 per m² / £4.01 per slab = £24.06 (£28.87 inc-VAT) per pack
59 plus packs @ £5.52 per m² / £3.97 per slab = £23.84 (£28.61 inc-VAT) per pack
75 plus packs @ £5.47 per m² / £3.94 per slab = £23.62 (£28.34 inc-VAT) per pack
Rockwool Building Slab RW5 50mm, 4 x 0.6x1.2m = 2.88m² - ranging from £6.84 to £7.16 per m²
1 plus packs @ £7.16 per m² / £5.16 per slab = £20.62 (£24.74 inc-VAT) per pack
18 plus packs @ £7.10 per m² / £5.11 per slab = £20.44 (£24.53 inc-VAT) per pack
36 plus packs @ £7.03 per m² / £5.07 per slab = £20.26 (£24.31 inc-VAT) per pack
54 plus packs @ £6.97 per m² / £5.02 per slab = £20.08 (£24.10 inc-VAT) per pack
73 plus packs @ £6.91 per m² / £4.97 per slab = £19.89 (£23.87 inc-VAT) per pack
92 plus packs @ £6.84 per m² / £4.93 per slab = £19.71 (£23.65 inc-VAT) per pack
Rockwool Building Slab RW5 60mm, 4 x 0.6x1.2m = 2.88m² - ranging from £8.44 to £8.84 per m²
1 plus packs @ £8.84 per m² / £6.36 per slab = £25.45 (£30.54 inc-VAT) per pack
18 plus packs @ £8.76 per m² / £6.31 per slab = £25.22 (£30.26 inc-VAT) per pack
36 plus packs @ £8.68 per m² / £6.25 per slab = £25.00 (£30.00 inc-VAT) per pack
54 plus packs @ £8.60 per m² / £6.19 per slab = £24.77 (£29.72 inc-VAT) per pack
73 plus packs @ £8.52 per m² / £6.14 per slab = £24.55 (£29.46 inc-VAT) per pack
92 plus packs @ £8.44 per m² / £6.08 per slab = £24.32 (£29.18 inc-VAT) per pack
Rockwool Building Slab RW5 75mm, 3 x 0.6x1.2m = 2.16m² - ranging from £10.22 to £10.70 per m²
1 plus packs @ £10.70 per m² / £7.70 per slab = £23.11 (£27.73 inc-VAT) per pack
16 plus packs @ £10.60 per m² / £7.63 per slab = £22.90 (£27.48 inc-VAT) per pack
32 plus packs @ £10.51 per m² / £7.57 per slab = £22.70 (£27.24 inc-VAT) per pack
49 plus packs @ £10.41 per m² / £7.50 per slab = £22.49 (£26.99 inc-VAT) per pack
65 plus packs @ £10.32 per m² / £7.43 per slab = £22.29 (£26.75 inc-VAT) per pack
82 plus packs @ £10.22 per m² / £7.36 per slab = £22.08 (£26.50 inc-VAT) per pack
Rockwool Building Slab RW5 100mm, 2 x 0.6x1.2m = 1.44m² - ranging from £13.60 to £14.24 per m²
1 plus packs @ £14.24 per m² / £10.25 per slab = £20.50 (£24.60 inc-VAT) per pack
18 plus packs @ £14.11 per m² / £10.16 per slab = £20.32 (£24.38 inc-VAT) per pack
36 plus packs @ £13.99 per m² / £10.07 per slab = £20.14 (£24.17 inc-VAT) per pack
55 plus packs @ £13.85 per m² / £9.98 per slab = £19.95 (£23.94 inc-VAT) per pack
73 plus packs @ £13.73 per m² / £9.89 per slab = £19.77 (£23.72 inc-VAT) per pack
92 plus packs @ £13.60 per m² / £9.80 per slab = £19.59 (£23.51 inc-VAT) per pack
Rockwool ProRox SL 980 30mm, 6 x 0.6x1.2m = 4.32m² - ranging from £5.25 to £5.50 per m²
1 plus packs @ £5.50 per m² / £3.96 per slab = £23.75 (£28.50 inc-VAT) per pack
16 plus packs @ £5.45 per m² / £3.92 per slab = £23.54 (£28.25 inc-VAT) per pack
32 plus packs @ £5.40 per m² / £3.89 per slab = £23.33 (£28.00 inc-VAT) per pack
49 plus packs @ £5.35 per m² / £3.85 per slab = £23.12 (£27.74 inc-VAT) per pack
65 plus packs @ £5.30 per m² / £3.82 per slab = £22.91 (£27.49 inc-VAT) per pack
82 plus packs @ £5.25 per m² / £3.78 per slab = £22.70 (£27.24 inc-VAT) per pack
Rockwool ProRox SL 980 50mm, 3 x 0.6x1.2m = 2.16m² - ranging from £8.71 to £9.11 per m²
1 plus packs @ £9.11 per m² / £6.56 per slab = £19.68 (£23.62 inc-VAT) per pack
16 plus packs @ £9.03 per m² / £6.50 per slab = £19.50 (£23.40 inc-VAT) per pack
32 plus packs @ £8.95 per m² / £6.44 per slab = £19.33 (£23.20 inc-VAT) per pack
49 plus packs @ £8.87 per m² / £6.38 per slab = £19.15 (£22.98 inc-VAT) per pack
66 plus packs @ £8.79 per m² / £6.33 per slab = £18.98 (£22.78 inc-VAT) per pack
83 plus packs @ £8.71 per m² / £6.27 per slab = £18.81 (£22.57 inc-VAT) per pack
Rockwool ProRox SL 980 75mm, 2 x 0.6x1.2m = 1.44m² - ranging from £13.51 to £14.14 per m²
1 plus packs @ £14.14 per m² / £10.18 per slab = £20.36 (£24.43 inc-VAT) per pack
16 plus packs @ £14.01 per m² / £10.09 per slab = £20.18 (£24.22 inc-VAT) per pack
32 plus packs @ £13.88 per m² / £10.00 per slab = £19.99 (£23.99 inc-VAT) per pack
48 plus packs @ £13.76 per m² / £9.91 per slab = £19.81 (£23.77 inc-VAT) per pack
64 plus packs @ £13.63 per m² / £9.82 per slab = £19.63 (£23.56 inc-VAT) per pack
81 plus packs @ £13.51 per m² / £9.73 per slab = £19.45 (£23.34 inc-VAT) per pack
Rockwool ProRox SL 980 100mm, 2 x 0.6x1.2m = 1.44m² - ranging from £17.51 to £18.32 per m²
1 plus packs @ £18.32 per m² / £13.19 per slab = £26.38 (£31.66 inc-VAT) per pack
14 plus packs @ £18.15 per m² / £13.07 per slab = £26.14 (£31.37 inc-VAT) per pack
28 plus packs @ £17.99 per m² / £12.96 per slab = £25.91 (£31.09 inc-VAT) per pack
42 plus packs @ £17.83 per m² / £12.84 per slab = £25.68 (£30.82 inc-VAT) per pack
56 plus packs @ £17.67 per m² / £12.72 per slab = £25.44 (£30.53 inc-VAT) per pack
71 plus packs @ £17.51 per m² / £12.61 per slab = £25.21 (£30.25 inc-VAT) per pack
Rockwool Flexi is a multi-purpose, flexible (on one edge), non-combustible, mineral wool slab specifically designed for installation by friction fitting.
They are typically used for the thermal and acoustic insulation of a wide variety of constructions such as stud partitions, either timber or metal, timber frame walls and suspended timber floors. Uniquely, Rockwool Flexi is available in widths of 400mm as well as the standard 600mm.
Rockwool Flexi® has a thermal conductivity of 50 – 120mm, 0.038 W/mK when tested to EN13162. At 140 mm thickness, it has a thermal conductivity of 0.035W/mK.
Rockwool Flexi 50mm, 12 x 0.4x1.2m = 5.76m² - ranging from £3.17 to £3.31 per m²
1 plus packs @ £3.31 per m² / £1.59 per slab = £19.09 (£22.91 inc-VAT) per pack
6 plus packs @ £3.28 per m² / £1.58 per slab = £18.92 (£22.70 inc-VAT) per pack
12 plus packs @ £3.26 per m² / £1.56 per slab = £18.75 (£22.50 inc-VAT) per pack
18 plus packs @ £3.23 per m² / £1.55 per slab = £18.58 (£22.30 inc-VAT) per pack
24 plus packs @ £3.20 per m² / £1.53 per slab = £18.41 (£22.09 inc-VAT) per pack
30 plus packs @ £3.17 per m² / £1.52 per slab = £18.24 (£21.89 inc-VAT) per pack
Rockwool Flexi 100mm, 6 x 0.4x1.2m = 2.88m² - ranging from £7.18 to £7.51 per m²
1 plus packs @ £7.51 per m² / £3.60 per slab = £21.62 (£25.94 inc-VAT) per pack
10 plus packs @ £7.44 per m² / £3.57 per slab = £21.43 (£25.72 inc-VAT) per pack
20 plus packs @ £7.38 per m² / £3.54 per slab = £21.24 (£25.49 inc-VAT) per pack
30 plus packs @ £7.31 per m² / £3.51 per slab = £21.05 (£25.26 inc-VAT) per pack
40 plus packs @ £7.24 per m² / £3.48 per slab = £20.86 (£25.03 inc-VAT) per pack
50 plus packs @ £7.18 per m² / £3.45 per slab = £20.67 (£24.80 inc-VAT) per pack
Rockwool Flexi 140mm, 4 x 0.4x1.2m = 1.92m² - ranging from £10.46 to £10.95 per m²
1 plus packs @ £10.95 per m² / £5.26 per slab = £21.02 (£25.22 inc-VAT) per pack
12 plus packs @ £10.85 per m² / £5.21 per slab = £20.83 (£25.00 inc-VAT) per pack
24 plus packs @ £10.75 per m² / £5.16 per slab = £20.64 (£24.77 inc-VAT) per pack
36 plus packs @ £10.66 per m² / £5.12 per slab = £20.46 (£24.55 inc-VAT) per pack
48 plus packs @ £10.56 per m² / £5.07 per slab = £20.27 (£24.32 inc-VAT) per pack
60 plus packs @ £10.46 per m² / £5.02 per slab = £20.09 (£24.11 inc-VAT) per pack
Rockwool Flexi 50mm, 12 x 0.6x1.2m = 8.64m² - ranging from £3.17 to £3.31 per m²
1 plus packs @ £3.31 per m² / £2.39 per slab = £28.63 (£34.36 inc-VAT) per pack
6 plus packs @ £3.28 per m² / £2.36 per slab = £28.37 (£34.04 inc-VAT) per pack
12 plus packs @ £3.25 per m² / £2.34 per slab = £28.12 (£33.74 inc-VAT) per pack
18 plus packs @ £3.23 per m² / £2.32 per slab = £27.87 (£33.44 inc-VAT) per pack
24 plus packs @ £3.20 per m² / £2.30 per slab = £27.61 (£33.13 inc-VAT) per pack
30 plus packs @ £3.17 per m² / £2.28 per slab = £27.36 (£32.83 inc-VAT) per pack
Rockwool Flexi 60mm, 12 x 0.6x1.2m = 8.64m² - ranging from £3.91 to £4.09 per m²
1 plus packs @ £4.09 per m² / £2.95 per slab = £35.38 (£42.46 inc-VAT) per pack
6 plus packs @ £4.06 per m² / £2.92 per slab = £35.07 (£42.08 inc-VAT) per pack
12 plus packs @ £4.02 per m² / £2.90 per slab = £34.75 (£41.70 inc-VAT) per pack
18 plus packs @ £3.99 per m² / £2.87 per slab = £34.44 (£41.33 inc-VAT) per pack
24 plus packs @ £3.95 per m² / £2.84 per slab = £34.13 (£40.96 inc-VAT) per pack
30 plus packs @ £3.91 per m² / £2.82 per slab = £33.82 (£40.58 inc-VAT) per pack
Rockwool Flexi 70mm, 8 x 0.6x1.2m = 5.76m² - ranging from £5.32 to £5.57 per m²
1 plus packs @ £5.57 per m² / £4.01 per slab = £32.09 (£38.51 inc-VAT) per pack
6 plus packs @ £5.52 per m² / £3.98 per slab = £31.81 (£38.17 inc-VAT) per pack
12 plus packs @ £5.47 per m² / £3.94 per slab = £31.53 (£37.84 inc-VAT) per pack
18 plus packs @ £5.42 per m² / £3.91 per slab = £31.24 (£37.49 inc-VAT) per pack
24 plus packs @ £5.38 per m² / £3.87 per slab = £30.96 (£37.15 inc-VAT) per pack
30 plus packs @ £5.32 per m² / £3.83 per slab = £30.67 (£36.80 inc-VAT) per pack
Rockwool Flexi 90mm, 6 x 0.6x1.2m = 4.32m² - ranging from £5.55 to £5.81 per m²
1 plus packs @ £5.81 per m² / £4.18 per slab = £25.09 (£30.11 inc-VAT) per pack
10 plus packs @ £5.76 per m² / £4.15 per slab = £24.87 (£29.84 inc-VAT) per pack
20 plus packs @ £5.71 per m² / £4.11 per slab = £24.65 (£29.58 inc-VAT) per pack
30 plus packs @ £5.65 per m² / £4.07 per slab = £24.42 (£29.30 inc-VAT) per pack
40 plus packs @ £5.60 per m² / £4.03 per slab = £24.20 (£29.04 inc-VAT) per pack
50 plus packs @ £5.55 per m² / £4.00 per slab = £23.98 (£28.78 inc-VAT) per pack
Rockwool Flexi 100mm, 6 x 0.6x1.2m = 4.32m² - ranging from £6.31 to £6.60 per m²
1 plus packs @ £6.60 per m² / £4.75 per slab = £28.52 (£34.22 inc-VAT) per pack
10 plus packs @ £6.54 per m² / £4.71 per slab = £28.27 (£33.92 inc-VAT) per pack
20 plus packs @ £6.49 per m² / £4.67 per slab = £28.02 (£33.62 inc-VAT) per pack
30 plus packs @ £6.43 per m² / £4.63 per slab = £27.76 (£33.31 inc-VAT) per pack
40 plus packs @ £6.37 per m² / £4.59 per slab = £27.51 (£33.01 inc-VAT) per pack
50 plus packs @ £6.31 per m² / £4.54 per slab = £27.26 (£32.71 inc-VAT) per pack
Rockwool Flexi 140mm, 4 x 0.6x1.2m = 2.88m² - ranging from £10.07 to £10.53 per m²
1 plus packs @ £10.53 per m² / £7.59 per slab = £30.34 (£36.41 inc-VAT) per pack
8 plus packs @ £10.44 per m² / £7.52 per slab = £30.07 (£36.08 inc-VAT) per pack
16 plus packs @ £10.35 per m² / £7.45 per slab = £29.81 (£35.77 inc-VAT) per pack
24 plus packs @ £10.26 per m² / £7.39 per slab = £29.54 (£35.45 inc-VAT) per pack
32 plus packs @ £10.16 per m² / £7.32 per slab = £29.27 (£35.12 inc-VAT) per pack
40 plus packs @ £10.07 per m² / £7.25 per slab = £29.00 (£34.80 inc-VAT) per pack
Rockwool Cavity insulation is a rigid full-fill insulation solution for masonry cavity wall construction, suitable for use in new builds or extensions. Lightweight and easy to handle, the batts are simple to install and provide a close fit against brick and blockwork, adapting to imperfections in the cavity wall. The high performance Partial Fill Cavity Slab is a semi-rigid partial fill insulation solution for masonry and framed cavity wall construction.
Rockwool cavity has a thermal conductivity (k value) of 0.037w/mk.
Rockwool Cavity Insulation 50mm, 12 x 0.455x1.2m = 6.55m² - ranging from £4.31 to £4.51 per m²
1 plus packs @ £4.51 per m² / £2.46 per slab = £29.51 (£35.41 inc-VAT) per pack
12 plus packs @ £4.46 per m² / £2.44 per slab = £29.24 (£35.09 inc-VAT) per pack
25 plus packs @ £4.42 per m² / £2.42 per slab = £28.98 (£34.78 inc-VAT) per pack
37 plus packs @ £4.38 per m² / £2.39 per slab = £28.72 (£34.46 inc-VAT) per pack
49 plus packs @ £4.35 per m² / £2.37 per slab = £28.46 (£34.15 inc-VAT) per pack
62 plus packs @ £4.31 per m² / £2.35 per slab = £28.20 (£33.84 inc-VAT) per pack
Rockwool Cavity Insulation 75mm, 9 x 0.455x1.2m = 4.91m² - ranging from £5.72 to £5.98 per m²
1 plus packs @ £5.98 per m² / £3.26 per slab = £29.37 (£35.24 inc-VAT) per pack
2 plus packs @ £5.93 per m² / £3.23 per slab = £29.11 (£34.93 inc-VAT) per pack
3 plus packs @ £5.88 per m² / £3.21 per slab = £28.85 (£34.62 inc-VAT) per pack
4 plus packs @ £5.82 per m² / £3.18 per slab = £28.59 (£34.31 inc-VAT) per pack
5 plus packs @ £5.77 per m² / £3.15 per slab = £28.33 (£34.00 inc-VAT) per pack
6 plus packs @ £5.72 per m² / £3.12 per slab = £28.07 (£33.68 inc-VAT) per pack
Rockwool Cavity Insulation 80mm, 8 x 0.455x1.2m = 4.37m² - ranging from £5.97 to £6.24 per m²
1 plus packs @ £6.24 per m² / £3.41 per slab = £27.28 (£32.74 inc-VAT) per pack
13 plus packs @ £6.19 per m² / £3.38 per slab = £27.04 (£32.45 inc-VAT) per pack
27 plus packs @ £6.13 per m² / £3.35 per slab = £26.80 (£32.16 inc-VAT) per pack
40 plus packs @ £6.08 per m² / £3.32 per slab = £26.55 (£31.86 inc-VAT) per pack
54 plus packs @ £6.02 per m² / £3.29 per slab = £26.31 (£31.57 inc-VAT) per pack
67 plus packs @ £5.97 per m² / £3.26 per slab = £26.07 (£31.28 inc-VAT) per pack
Rockwool Cavity Insulation 100mm, 6 x 0.455x1.2m = 3.28m² - ranging from £7.40 to £7.74 per m²
1 plus packs @ £7.74 per m² / £4.23 per slab = £25.40 (£30.48 inc-VAT) per pack
14 plus packs @ £7.67 per m² / £4.20 per slab = £25.17 (£30.20 inc-VAT) per pack
29 plus packs @ £7.61 per m² / £4.16 per slab = £24.95 (£29.94 inc-VAT) per pack
43 plus packs @ £7.54 per m² / £4.12 per slab = £24.73 (£29.68 inc-VAT) per pack
58 plus packs @ £7.47 per m² / £4.08 per slab = £24.50 (£29.40 inc-VAT) per pack
72 plus packs @ £7.40 per m² / £4.05 per slab = £24.28 (£29.14 inc-VAT) per pack
Fire Barrier Systems offer labour-saving solutions to prevent the spread of fire and smoke within roof and ceiling voids. The Fire Barrier Systems range comprises the following products: Fire Barrier Easy Fix System Options are available to provide up to 4 hours fire protection and fixings to a variety of substrates. Patented 'Quick Fix' support system cost effectively installs Fire Barriers for periods up to 60 minutes. Fire barrier has a 25mm galvanised wire mesh stitched with wire, to one face, to produce a exible fire barrier with optional aluminium foil faces.
Rockwool Fire barrier Slab has a factory applied foil finnish to both faces, which can achieve a reaction to fire classification of A1; as defined in BS EN 13501:1
Rockwool Fire Barrier - foil on both faces 50mm, 1x4m = 4m² - ranging from £21.38 to £22.37 per m²
1 plus rolls @ £22.37 per m² = £89.49 (£107.39 inc-VAT) per roll
4 plus rolls @ £22.18 per m² = £88.70 (£106.44 inc-VAT) per roll
8 plus rolls @ £21.98 per m² = £87.90 (£105.48 inc-VAT) per roll
11 plus rolls @ £21.78 per m² = £87.11 (£104.53 inc-VAT) per roll
15 plus rolls @ £21.58 per m² = £86.32 (£103.58 inc-VAT) per roll
19 plus rolls @ £21.38 per m² = £85.53 (£102.64 inc-VAT) per roll
Rockwool Fire Barrier - foil on one face 50mm, 1x4m = 4m² - ranging from £17.81 to £18.64 per m²
1 plus rolls @ £18.64 per m² = £74.55 (£89.46 inc-VAT) per roll
4 plus rolls @ £18.47 per m² = £73.89 (£88.67 inc-VAT) per roll
8 plus rolls @ £18.31 per m² = £73.23 (£87.88 inc-VAT) per roll
11 plus rolls @ £18.14 per m² = £72.57 (£87.08 inc-VAT) per roll
15 plus rolls @ £17.98 per m² = £71.91 (£86.29 inc-VAT) per roll
19 plus rolls @ £17.81 per m² = £71.25 (£85.50 inc-VAT) per roll
Knauf Earthwool Mineral Wool Slabs - Click drop-down boxes for details
Knauf Earthwool standard products are supplied un-faced, but they can be manufactured with a factory applied foil or tissue facing, they are also available in a water repellent grade.
These slabs, branded 'RS' (short for Rocksilk, by which they were formerly known) are followed by the number that relates to their density per cubic metre. RS33 = 33 kg/m³ | RS45 = 45 kg/m³ | RS60 = 60 kg/m³ | RS80 = 80 kg/m³ | RS100 = 100 kg/m³ | RS140 = 140 kg/m³.
Knauf Earthwool® Building Slab RS33 40mm, 12 x (14 x 0.6x1.2m) = 120.96m² - ranging from £3.74 to £3.91 per m²
1 x pallet @ £3.91 per m² / £2.82 per slab = £473.30 (£567.96 inc-VAT)
2 x pallets @ £3.88 per m² / £2.79 per slab = £469.11 (£562.93 inc-VAT)
3 x pallets @ £3.84 per m² / £2.77 per slab = £464.92 (£557.90 inc-VAT)
4 x pallets @ £3.81 per m² / £2.74 per slab = £460.73 (£552.88 inc-VAT)
5 x pallets @ £3.77 per m² / £2.72 per slab = £456.54 (£547.85 inc-VAT)
6 x pallets @ £3.74 per m² / £2.69 per slab = £452.35 (£542.82 inc-VAT)
Knauf Earthwool® Building Slab RS33 50mm, 12 x (12 x 0.6x1.2m) = 103.68m² - ranging from £4.82 to £5.04 per m²
1 x pallet @ £5.04 per m² / £3.63 per slab = £522.39 (£626.87 inc-VAT)
2 x pallets @ £4.99 per m² / £3.60 per slab = £517.76 (£621.31 inc-VAT)
3 x pallets @ £4.95 per m² / £3.56 per slab = £513.14 (£615.77 inc-VAT)
4 x pallets @ £4.90 per m² / £3.53 per slab = £508.52 (£610.22 inc-VAT)
5 x pallets @ £4.86 per m² / £3.50 per slab = £503.89 (£604.67 inc-VAT)
6 x pallets @ £4.82 per m² / £3.47 per slab = £499.27 (£599.12 inc-VAT)
Knauf Earthwool® Building Slab RS33 60mm, 12 x (10 x 0.6x1.2m) = 86.4m² - ranging from £5.93 to £6.20 per m²
1 x pallet @ £6.20 per m² / £4.47 per slab = £536.05 (£643.26 inc-VAT)
2 x pallets @ £6.15 per m² / £4.43 per slab = £531.30 (£637.56 inc-VAT)
3 x pallets @ £6.09 per m² / £4.39 per slab = £526.56 (£631.87 inc-VAT)
4 x pallets @ £6.04 per m² / £4.35 per slab = £521.82 (£626.18 inc-VAT)
5 x pallets @ £5.98 per m² / £4.31 per slab = £517.07 (£620.48 inc-VAT)
6 x pallets @ £5.93 per m² / £4.27 per slab = £512.33 (£614.80 inc-VAT)
Knauf Earthwool® Building Slab RS33 70mm, 12 x (8 x 0.6x1.2m) = 69.12m² - ranging from £6.72 to £7.04 per m²
1 x pallet @ £7.04 per m² / £5.07 per slab = £486.26 (£583.51 inc-VAT)
2 x pallets @ £6.97 per m² / £5.02 per slab = £481.96 (£578.35 inc-VAT)
3 x pallets @ £6.91 per m² / £4.98 per slab = £477.66 (£573.19 inc-VAT)
4 x pallets @ £6.85 per m² / £4.93 per slab = £473.35 (£568.02 inc-VAT)
5 x pallets @ £6.79 per m² / £4.89 per slab = £469.05 (£562.86 inc-VAT)
6 x pallets @ £6.72 per m² / £4.84 per slab = £464.75 (£557.70 inc-VAT)
Knauf Earthwool® Building Slab RS33 100mm, 12 x (5 x 0.6x1.2m) = 43.2m² - ranging from £8.79 to £9.19 per m²
1 x pallet @ £9.19 per m² / £6.62 per slab = £397.12 (£476.54 inc-VAT)
2 x pallets @ £9.11 per m² / £6.56 per slab = £393.60 (£472.32 inc-VAT)
3 x pallets @ £9.03 per m² / £6.50 per slab = £390.09 (£468.11 inc-VAT)
4 x pallets @ £8.95 per m² / £6.44 per slab = £386.57 (£463.88 inc-VAT)
5 x pallets @ £8.87 per m² / £6.38 per slab = £383.06 (£459.67 inc-VAT)
6 x pallets @ £8.79 per m² / £6.33 per slab = £379.55 (£455.46 inc-VAT)
Knauf Earthwool® Building Slab RS33 40mm, 12 x (14 x 0.6x1.2m) = 120.96m² - ranging from £3.74 to £3.91 per m²
1 x pallet @ £3.91 per m² / £2.82 per slab = £473.30 (£567.96 inc-VAT)
2 x pallets @ £3.88 per m² / £2.79 per slab = £469.11 (£562.93 inc-VAT)
3 x pallets @ £3.84 per m² / £2.77 per slab = £464.92 (£557.90 inc-VAT)
4 x pallets @ £3.81 per m² / £2.74 per slab = £460.73 (£552.88 inc-VAT)
5 x pallets @ £3.77 per m² / £2.72 per slab = £456.54 (£547.85 inc-VAT)
6 x pallets @ £3.74 per m² / £2.69 per slab = £452.35 (£542.82 inc-VAT)
Knauf Earthwool® Building Slab RS33 50mm, 12 x (12 x 0.6x1.2m) = 103.68m² - ranging from £4.82 to £5.04 per m²
1 x pallet @ £5.04 per m² / £3.63 per slab = £522.39 (£626.87 inc-VAT)
2 x pallets @ £4.99 per m² / £3.60 per slab = £517.76 (£621.31 inc-VAT)
3 x pallets @ £4.95 per m² / £3.56 per slab = £513.14 (£615.77 inc-VAT)
4 x pallets @ £4.90 per m² / £3.53 per slab = £508.52 (£610.22 inc-VAT)
5 x pallets @ £4.86 per m² / £3.50 per slab = £503.89 (£604.67 inc-VAT)
6 x pallets @ £4.82 per m² / £3.47 per slab = £499.27 (£599.12 inc-VAT)
Knauf Earthwool® Building Slab RS33 60mm, 12 x (10 x 0.6x1.2m) = 86.4m² - ranging from £5.93 to £6.20 per m²
1 x pallet @ £6.20 per m² / £4.47 per slab = £536.05 (£643.26 inc-VAT)
2 x pallets @ £6.15 per m² / £4.43 per slab = £531.30 (£637.56 inc-VAT)
3 x pallets @ £6.09 per m² / £4.39 per slab = £526.56 (£631.87 inc-VAT)
4 x pallets @ £6.04 per m² / £4.35 per slab = £521.82 (£626.18 inc-VAT)
5 x pallets @ £5.98 per m² / £4.31 per slab = £517.07 (£620.48 inc-VAT)
6 x pallets @ £5.93 per m² / £4.27 per slab = £512.33 (£614.80 inc-VAT)
Knauf Earthwool® Building Slab RS33 70mm, 12 x (8 x 0.6x1.2m) = 69.12m² - ranging from £6.72 to £7.04 per m²
1 x pallet @ £7.04 per m² / £5.07 per slab = £486.26 (£583.51 inc-VAT)
2 x pallets @ £6.97 per m² / £5.02 per slab = £481.96 (£578.35 inc-VAT)
3 x pallets @ £6.91 per m² / £4.98 per slab = £477.66 (£573.19 inc-VAT)
4 x pallets @ £6.85 per m² / £4.93 per slab = £473.35 (£568.02 inc-VAT)
5 x pallets @ £6.79 per m² / £4.89 per slab = £469.05 (£562.86 inc-VAT)
6 x pallets @ £6.72 per m² / £4.84 per slab = £464.75 (£557.70 inc-VAT)
Knauf Earthwool® Building Slab RS33 100mm, 12 x (5 x 0.6x1.2m) = 43.2m² - ranging from £8.79 to £9.19 per m²
1 x pallet @ £9.19 per m² / £6.62 per slab = £397.12 (£476.54 inc-VAT)
2 x pallets @ £9.11 per m² / £6.56 per slab = £393.60 (£472.32 inc-VAT)
3 x pallets @ £9.03 per m² / £6.50 per slab = £390.09 (£468.11 inc-VAT)
4 x pallets @ £8.95 per m² / £6.44 per slab = £386.57 (£463.88 inc-VAT)
5 x pallets @ £8.87 per m² / £6.38 per slab = £383.06 (£459.67 inc-VAT)
6 x pallets @ £8.79 per m² / £6.33 per slab = £379.55 (£455.46 inc-VAT)
Knauf Earthwool® Building Slab RS45 25mm, 20 x 0.6x1.2m = 14.4m² - ranging from £1.77 to £1.85 per m²
1 plus packs @ £1.85 per m² / £1.33 per slab = £26.58 (£31.90 inc-VAT) per pack
19 plus packs @ £1.83 per m² / £1.32 per slab = £26.35 (£31.62 inc-VAT) per pack
37 plus packs @ £1.81 per m² / £1.31 per slab = £26.12 (£31.34 inc-VAT) per pack
55 plus packs @ £1.80 per m² / £1.30 per slab = £25.90 (£31.08 inc-VAT) per pack
74 plus packs @ £1.78 per m² / £1.28 per slab = £25.67 (£30.80 inc-VAT) per pack
94 plus packs @ £1.77 per m² / £1.27 per slab = £25.44 (£30.53 inc-VAT) per pack
Knauf Earthwool® Building Slab RS45 30mm, 16 x 0.6x1.2m = 11.52m² - ranging from £2.28 to £2.39 per m²
1 plus packs @ £2.39 per m² / £1.72 per slab = £27.50 (£33.00 inc-VAT) per pack
19 plus packs @ £2.37 per m² / £1.70 per slab = £27.26 (£32.71 inc-VAT) per pack
38 plus packs @ £2.35 per m² / £1.69 per slab = £27.03 (£32.44 inc-VAT) per pack
58 plus packs @ £2.33 per m² / £1.67 per slab = £26.79 (£32.15 inc-VAT) per pack
78 plus packs @ £2.31 per m² / £1.66 per slab = £26.56 (£31.87 inc-VAT) per pack
98 plus packs @ £2.28 per m² / £1.65 per slab = £26.32 (£31.58 inc-VAT) per pack
Knauf Earthwool® Building Slab RS45 40mm, 12 x 0.6x1.2m = 8.64m² - ranging from £3.06 to £3.19 per m²
1 plus packs @ £3.19 per m² / £2.30 per slab = £27.58 (£33.10 inc-VAT) per pack
19 plus packs @ £3.16 per m² / £2.28 per slab = £27.34 (£32.81 inc-VAT) per pack
38 plus packs @ £3.14 per m² / £2.26 per slab = £27.10 (£32.52 inc-VAT) per pack
58 plus packs @ £3.11 per m² / £2.24 per slab = £26.87 (£32.24 inc-VAT) per pack
78 plus packs @ £3.08 per m² / £2.22 per slab = £26.63 (£31.96 inc-VAT) per pack
98 plus packs @ £3.06 per m² / £2.20 per slab = £26.40 (£31.68 inc-VAT) per pack
Knauf Earthwool® Building Slab RS45 50mm, 10 x 0.6x1.2m = 7.2m² - ranging from £3.53 to £3.69 per m²
1 plus packs @ £3.69 per m² / £2.66 per slab = £26.58 (£31.90 inc-VAT) per pack
19 plus packs @ £3.66 per m² / £2.64 per slab = £26.35 (£31.62 inc-VAT) per pack
37 plus packs @ £3.63 per m² / £2.61 per slab = £26.12 (£31.34 inc-VAT) per pack
55 plus packs @ £3.60 per m² / £2.59 per slab = £25.90 (£31.08 inc-VAT) per pack
74 plus packs @ £3.57 per m² / £2.57 per slab = £25.67 (£30.80 inc-VAT) per pack
94 plus packs @ £3.53 per m² / £2.54 per slab = £25.44 (£30.53 inc-VAT) per pack
Knauf Earthwool® Building Slab RS45 60mm, 8 x 0.6x1.2m = 5.76m² - ranging from £4.64 to £4.84 per m²
1 plus packs @ £4.84 per m² / £3.49 per slab = £27.90 (£33.48 inc-VAT) per pack
19 plus packs @ £4.80 per m² / £3.46 per slab = £27.66 (£33.19 inc-VAT) per pack
38 plus packs @ £4.76 per m² / £3.43 per slab = £27.42 (£32.90 inc-VAT) per pack
57 plus packs @ £4.72 per m² / £3.40 per slab = £27.18 (£32.62 inc-VAT) per pack
77 plus packs @ £4.68 per m² / £3.37 per slab = £26.94 (£32.33 inc-VAT) per pack
97 plus packs @ £4.64 per m² / £3.34 per slab = £26.70 (£32.04 inc-VAT) per pack
Knauf Earthwool® Building Slab RS45 75mm, 6 x 0.6x1.2m = 4.32m² - ranging from £5.31 to £5.55 per m²
1 plus packs @ £5.55 per m² / £4.00 per slab = £23.98 (£28.78 inc-VAT) per pack
20 plus packs @ £5.50 per m² / £3.96 per slab = £23.77 (£28.52 inc-VAT) per pack
41 plus packs @ £5.46 per m² / £3.93 per slab = £23.57 (£28.28 inc-VAT) per pack
61 plus packs @ £5.41 per m² / £3.90 per slab = £23.37 (£28.04 inc-VAT) per pack
83 plus packs @ £5.36 per m² / £3.86 per slab = £23.16 (£27.79 inc-VAT) per pack
104 plus packs @ £5.31 per m² / £3.83 per slab = £22.96 (£27.55 inc-VAT) per pack
Knauf Earthwool® Building Slab RS45 100mm, 5 x 0.6x1.2m = 3.6m² - ranging from £7.03 to £7.34 per m²
1 plus packs @ £7.34 per m² / £5.29 per slab = £26.43 (£31.72 inc-VAT) per pack
19 plus packs @ £7.28 per m² / £5.24 per slab = £26.20 (£31.44 inc-VAT) per pack
37 plus packs @ £7.22 per m² / £5.20 per slab = £25.98 (£31.18 inc-VAT) per pack
56 plus packs @ £7.15 per m² / £5.15 per slab = £25.75 (£30.90 inc-VAT) per pack
75 plus packs @ £7.09 per m² / £5.10 per slab = £25.52 (£30.62 inc-VAT) per pack
94 plus packs @ £7.03 per m² / £5.06 per slab = £25.30 (£30.36 inc-VAT) per pack
Knauf Earthwool® Building Slab RS60 25mm, 18 x 0.6x1.2m = 12.96m² - ranging from £2.27 to £2.37 per m²
1 plus packs @ £2.37 per m² / £1.71 per slab = £30.75 (£36.90 inc-VAT) per pack
16 plus packs @ £2.35 per m² / £1.69 per slab = £30.49 (£36.59 inc-VAT) per pack
32 plus packs @ £2.33 per m² / £1.68 per slab = £30.23 (£36.28 inc-VAT) per pack
48 plus packs @ £2.31 per m² / £1.66 per slab = £29.96 (£35.95 inc-VAT) per pack
65 plus packs @ £2.29 per m² / £1.65 per slab = £29.70 (£35.64 inc-VAT) per pack
81 plus packs @ £2.27 per m² / £1.64 per slab = £29.44 (£35.33 inc-VAT) per pack
Knauf Earthwool® Building Slab RS60 30mm, 14 x 0.6x1.2m = 10.08m² - ranging from £2.82 to £2.94 per m²
1 plus packs @ £2.94 per m² / £2.12 per slab = £29.65 (£35.58 inc-VAT) per pack
18 plus packs @ £2.92 per m² / £2.10 per slab = £29.40 (£35.28 inc-VAT) per pack
36 plus packs @ £2.89 per m² / £2.08 per slab = £29.15 (£34.98 inc-VAT) per pack
54 plus packs @ £2.87 per m² / £2.06 per slab = £28.89 (£34.67 inc-VAT) per pack
72 plus packs @ £2.84 per m² / £2.05 per slab = £28.64 (£34.37 inc-VAT) per pack
91 plus packs @ £2.82 per m² / £2.03 per slab = £28.39 (£34.07 inc-VAT) per pack
Knauf Earthwool® Building Slab RS60 40mm, 12 x 0.6x1.2m = 8.64m² - ranging from £3.75 to £3.91 per m²
1 plus packs @ £3.91 per m² / £2.82 per slab = £33.81 (£40.57 inc-VAT) per pack
16 plus packs @ £3.88 per m² / £2.79 per slab = £33.52 (£40.22 inc-VAT) per pack
31 plus packs @ £3.85 per m² / £2.77 per slab = £33.23 (£39.88 inc-VAT) per pack
47 plus packs @ £3.81 per m² / £2.75 per slab = £32.94 (£39.53 inc-VAT) per pack
64 plus packs @ £3.78 per m² / £2.72 per slab = £32.65 (£39.18 inc-VAT) per pack
80 plus packs @ £3.75 per m² / £2.70 per slab = £32.36 (£38.83 inc-VAT) per pack
Knauf Earthwool® Building Slab RS60 50mm, 9 x 0.6x1.2m = 6.48m² - ranging from £4.32 to £4.51 per m²
1 plus packs @ £4.51 per m² / £3.25 per slab = £29.22 (£35.06 inc-VAT) per pack
17 plus packs @ £4.47 per m² / £3.22 per slab = £28.97 (£34.76 inc-VAT) per pack
34 plus packs @ £4.43 per m² / £3.19 per slab = £28.72 (£34.46 inc-VAT) per pack
51 plus packs @ £4.40 per m² / £3.16 per slab = £28.48 (£34.18 inc-VAT) per pack
68 plus packs @ £4.36 per m² / £3.14 per slab = £28.23 (£33.88 inc-VAT) per pack
86 plus packs @ £4.32 per m² / £3.11 per slab = £27.98 (£33.58 inc-VAT) per pack
Knauf Earthwool® Building Slab RS60 60mm, 7 x 0.6x1.2m = 5.04m² - ranging from £5.61 to £5.86 per m²
1 plus packs @ £5.86 per m² / £4.22 per slab = £29.51 (£35.41 inc-VAT) per pack
18 plus packs @ £5.81 per m² / £4.18 per slab = £29.26 (£35.11 inc-VAT) per pack
36 plus packs @ £5.76 per m² / £4.14 per slab = £29.01 (£34.81 inc-VAT) per pack
54 plus packs @ £5.71 per m² / £4.11 per slab = £28.76 (£34.51 inc-VAT) per pack
73 plus packs @ £5.66 per m² / £4.07 per slab = £28.51 (£34.21 inc-VAT) per pack
91 plus packs @ £5.61 per m² / £4.04 per slab = £28.25 (£33.90 inc-VAT) per pack
Knauf Earthwool® Building Slab RS60 75mm, 6 x 0.6x1.2m = 4.32m² - ranging from £6.44 to £6.73 per m²
1 plus packs @ £6.73 per m² / £4.85 per slab = £29.07 (£34.88 inc-VAT) per pack
17 plus packs @ £6.67 per m² / £4.81 per slab = £28.83 (£34.60 inc-VAT) per pack
34 plus packs @ £6.62 per m² / £4.76 per slab = £28.58 (£34.30 inc-VAT) per pack
51 plus packs @ £6.56 per m² / £4.72 per slab = £28.33 (£34.00 inc-VAT) per pack
68 plus packs @ £6.50 per m² / £4.68 per slab = £28.08 (£33.70 inc-VAT) per pack
86 plus packs @ £6.44 per m² / £4.64 per slab = £27.83 (£33.40 inc-VAT) per pack
Knauf Earthwool® Building Slab RS60 100mm, 4 x 0.6x1.2m = 2.88m² - ranging from £8.65 to £9.03 per m²
1 plus packs @ £9.03 per m² / £6.51 per slab = £26.02 (£31.22 inc-VAT) per pack
19 plus packs @ £8.96 per m² / £6.45 per slab = £25.80 (£30.96 inc-VAT) per pack
38 plus packs @ £8.88 per m² / £6.39 per slab = £25.57 (£30.68 inc-VAT) per pack
57 plus packs @ £8.80 per m² / £6.34 per slab = £25.35 (£30.42 inc-VAT) per pack
76 plus packs @ £8.73 per m² / £6.28 per slab = £25.13 (£30.16 inc-VAT) per pack
96 plus packs @ £8.65 per m² / £6.23 per slab = £24.91 (£29.89 inc-VAT) per pack
Knauf Earthwool® Building Slab RS100 25mm, 12 x 0.6x1.2m = 8.64m² - ranging from £4.81 to £5.02 per m²
1 plus packs @ £5.02 per m² / £3.62 per slab = £43.40 (£52.08 inc-VAT) per pack
12 plus packs @ £4.98 per m² / £3.59 per slab = £43.03 (£51.64 inc-VAT) per pack
25 plus packs @ £4.94 per m² / £3.56 per slab = £42.66 (£51.19 inc-VAT) per pack
37 plus packs @ £4.89 per m² / £3.52 per slab = £42.29 (£50.75 inc-VAT) per pack
49 plus packs @ £4.85 per m² / £3.49 per slab = £41.92 (£50.30 inc-VAT) per pack
62 plus packs @ £4.81 per m² / £3.46 per slab = £41.54 (£49.85 inc-VAT) per pack
Knauf Earthwool® Building Slab RS100 30mm, 10 x 0.6x1.2m = 7.2m² - ranging from £5.80 to £6.06 per m²
1 plus packs @ £6.06 per m² / £4.37 per slab = £43.66 (£52.39 inc-VAT) per pack
12 plus packs @ £6.01 per m² / £4.33 per slab = £43.29 (£51.95 inc-VAT) per pack
24 plus packs @ £5.96 per m² / £4.29 per slab = £42.91 (£51.49 inc-VAT) per pack
37 plus packs @ £5.91 per m² / £4.25 per slab = £42.54 (£51.05 inc-VAT) per pack
49 plus packs @ £5.86 per m² / £4.22 per slab = £42.17 (£50.60 inc-VAT) per pack
62 plus packs @ £5.80 per m² / £4.18 per slab = £41.79 (£50.15 inc-VAT) per pack
Knauf Earthwool® Building Slab RS100 40mm, 7 x 0.6x1.2m = 5.04m² - ranging from £7.80 to £8.14 per m²
1 plus packs @ £8.14 per m² / £5.86 per slab = £41.05 (£49.26 inc-VAT) per pack
13 plus packs @ £8.08 per m² / £5.81 per slab = £40.70 (£48.84 inc-VAT) per pack
26 plus packs @ £8.01 per m² / £5.76 per slab = £40.35 (£48.42 inc-VAT) per pack
39 plus packs @ £7.94 per m² / £5.71 per slab = £40.00 (£48.00 inc-VAT) per pack
52 plus packs @ £7.87 per m² / £5.66 per slab = £39.65 (£47.58 inc-VAT) per pack
66 plus packs @ £7.80 per m² / £5.61 per slab = £39.30 (£47.16 inc-VAT) per pack
Knauf Earthwool® Building Slab RS100 50mm, 6 x 0.6x1.2m = 4.32m² - ranging from £9.75 to £10.19 per m²
1 plus packs @ £10.19 per m² / £7.33 per slab = £44.00 (£52.80 inc-VAT) per pack
12 plus packs @ £10.10 per m² / £7.27 per slab = £43.62 (£52.34 inc-VAT) per pack
24 plus packs @ £10.01 per m² / £7.21 per slab = £43.25 (£51.90 inc-VAT) per pack
36 plus packs @ £9.92 per m² / £7.15 per slab = £42.87 (£51.44 inc-VAT) per pack
49 plus packs @ £9.84 per m² / £7.08 per slab = £42.49 (£50.99 inc-VAT) per pack
61 plus packs @ £9.75 per m² / £7.02 per slab = £42.12 (£50.54 inc-VAT) per pack
Knauf Earthwool® Building Slab RS100 60mm, 5 x 0.6x1.2m = 3.6m² - ranging from £11.68 to £12.20 per m²
1 plus packs @ £12.20 per m² / £8.78 per slab = £43.91 (£52.69 inc-VAT) per pack
12 plus packs @ £12.09 per m² / £8.71 per slab = £43.53 (£52.24 inc-VAT) per pack
24 plus packs @ £11.99 per m² / £8.63 per slab = £43.16 (£51.79 inc-VAT) per pack
36 plus packs @ £11.88 per m² / £8.56 per slab = £42.78 (£51.34 inc-VAT) per pack
49 plus packs @ £11.78 per m² / £8.48 per slab = £42.41 (£50.89 inc-VAT) per pack
62 plus packs @ £11.68 per m² / £8.41 per slab = £42.03 (£50.44 inc-VAT) per pack
Knauf Earthwool® Building Slab RS100 75mm, 4 x 0.6x1.2m = 2.88m² - ranging from £14.60 to £15.25 per m²
1 plus packs @ £15.25 per m² / £10.98 per slab = £43.92 (£52.70 inc-VAT) per pack
12 plus packs @ £15.12 per m² / £10.89 per slab = £43.54 (£52.25 inc-VAT) per pack
24 plus packs @ £14.99 per m² / £10.79 per slab = £43.17 (£51.80 inc-VAT) per pack
36 plus packs @ £14.86 per m² / £10.70 per slab = £42.79 (£51.35 inc-VAT) per pack
49 plus packs @ £14.73 per m² / £10.61 per slab = £42.42 (£50.90 inc-VAT) per pack
62 plus packs @ £14.60 per m² / £10.51 per slab = £42.04 (£50.45 inc-VAT) per pack
Knauf Earthwool® Building Slab RS100 100mm, 3 x 0.6x1.2m = 2.16m² - ranging from £19.38 to £20.25 per m²
1 plus packs @ £20.25 per m² / £14.58 per slab = £43.73 (£52.48 inc-VAT) per pack
12 plus packs @ £20.07 per m² / £14.45 per slab = £43.36 (£52.03 inc-VAT) per pack
24 plus packs @ £19.90 per m² / £14.33 per slab = £42.98 (£51.58 inc-VAT) per pack
37 plus packs @ £19.73 per m² / £14.20 per slab = £42.61 (£51.13 inc-VAT) per pack
49 plus packs @ £19.55 per m² / £14.08 per slab = £42.23 (£50.68 inc-VAT) per pack
62 plus packs @ £19.38 per m² / £13.95 per slab = £41.86 (£50.23 inc-VAT) per pack
Knauf Earthwool® Building Slab RS140 30mm, 7 x 0.6x1.2m = 5.04m² - ranging from £8.17 to £8.53 per m²
1 plus packs @ £8.53 per m² / £6.14 per slab = £43.01 (£51.61 inc-VAT) per pack
13 plus packs @ £8.46 per m² / £6.09 per slab = £42.64 (£51.17 inc-VAT) per pack
25 plus packs @ £8.39 per m² / £6.04 per slab = £42.27 (£50.72 inc-VAT) per pack
37 plus packs @ £8.32 per m² / £5.99 per slab = £41.91 (£50.29 inc-VAT) per pack
50 plus packs @ £8.24 per m² / £5.93 per slab = £41.54 (£49.85 inc-VAT) per pack
63 plus packs @ £8.17 per m² / £5.88 per slab = £41.17 (£49.40 inc-VAT) per pack
Knauf Earthwool® Building Slab RS140 40mm, 5 x 0.6x1.2m = 3.6m² - ranging from £10.76 to £11.24 per m²
1 plus packs @ £11.24 per m² / £8.09 per slab = £40.46 (£48.55 inc-VAT) per pack
13 plus packs @ £11.14 per m² / £8.02 per slab = £40.12 (£48.14 inc-VAT) per pack
26 plus packs @ £11.05 per m² / £7.95 per slab = £39.77 (£47.72 inc-VAT) per pack
40 plus packs @ £10.95 per m² / £7.89 per slab = £39.43 (£47.32 inc-VAT) per pack
53 plus packs @ £10.86 per m² / £7.82 per slab = £39.08 (£46.90 inc-VAT) per pack
67 plus packs @ £10.76 per m² / £7.75 per slab = £38.73 (£46.48 inc-VAT) per pack
Knauf Earthwool® Building Slab RS140 50mm, 4 x 0.6x1.2m = 2.88m² - ranging from £13.53 to £14.14 per m²
1 plus packs @ £14.14 per m² / £10.18 per slab = £40.72 (£48.86 inc-VAT) per pack
13 plus packs @ £14.02 per m² / £10.09 per slab = £40.37 (£48.44 inc-VAT) per pack
26 plus packs @ £13.90 per m² / £10.01 per slab = £40.03 (£48.04 inc-VAT) per pack
39 plus packs @ £13.78 per m² / £9.92 per slab = £39.68 (£47.62 inc-VAT) per pack
53 plus packs @ £13.66 per m² / £9.83 per slab = £39.33 (£47.20 inc-VAT) per pack
66 plus packs @ £13.53 per m² / £9.75 per slab = £38.98 (£46.78 inc-VAT) per pack
Knauf Earthwool® Building Slab RS140 75mm, 3 x 0.6x1.2m = 2.16m² - ranging from £22.14 to £23.13 per m²
1 plus packs @ £23.13 per m² / £16.65 per slab = £49.96 (£59.95 inc-VAT) per pack
11 plus packs @ £22.94 per m² / £16.51 per slab = £49.54 (£59.45 inc-VAT) per pack
21 plus packs @ £22.74 per m² / £16.37 per slab = £49.11 (£58.93 inc-VAT) per pack
32 plus packs @ £22.54 per m² / £16.23 per slab = £48.68 (£58.42 inc-VAT) per pack
43 plus packs @ £22.34 per m² / £16.08 per slab = £48.25 (£57.90 inc-VAT) per pack
54 plus packs @ £22.14 per m² / £15.94 per slab = £47.83 (£57.40 inc-VAT) per pack
Knauf Earthwool® Building Slab RS140 100mm, 2 x 0.6x1.2m = 1.44m² - ranging from £26.94 to £28.14 per m²
1 plus packs @ £28.14 per m² / £20.26 per slab = £40.52 (£48.62 inc-VAT) per pack
13 plus packs @ £27.90 per m² / £20.09 per slab = £40.18 (£48.22 inc-VAT) per pack
26 plus packs @ £27.66 per m² / £19.92 per slab = £39.83 (£47.80 inc-VAT) per pack
39 plus packs @ £27.42 per m² / £19.74 per slab = £39.48 (£47.38 inc-VAT) per pack
53 plus packs @ £27.18 per m² / £19.57 per slab = £39.14 (£46.97 inc-VAT) per pack
67 plus packs @ £26.94 per m² / £19.40 per slab = £38.79 (£46.55 inc-VAT) per pack
Earthwool Flexible Slab is also a multi-purpose, flexible (all four edges), non-combustible, rock mineral wool slab specifically designed for installation by friction fitting.
They are typically used for the thermal and acoustic insulation of a wide variety of constructions such as timber and metal stud partitions, timber frame walls and suspended timber floors.
Availability:
Depending upon the volume of sales of in your area, these products may be readily available at the lower densities, such as 45kg/m³ and 60kg/m³. As the slab densities increase, and product popularity declines, therefore lead times may apply.
Although these products are popular, availability is sketchy, particularly outside of London. Should delivery be outside of the home counties, please consider Rockwool products as an alternative.
Knauf Earthwool® Flexible Slab 50mm, 12 x 0.6x1.2m = 8.64m² - ranging from £4.30 to £4.49 per m²
1 plus packs @ £4.49 per m² / £3.23 per slab = £38.81 (£46.57 inc-VAT) per pack
14 plus packs @ £4.45 per m² / £3.21 per slab = £38.48 (£46.18 inc-VAT) per pack
28 plus packs @ £4.42 per m² / £3.18 per slab = £38.16 (£45.79 inc-VAT) per pack
43 plus packs @ £4.38 per m² / £3.15 per slab = £37.83 (£45.40 inc-VAT) per pack
57 plus packs @ £4.34 per m² / £3.13 per slab = £37.50 (£45.00 inc-VAT) per pack
72 plus packs @ £4.30 per m² / £3.10 per slab = £37.17 (£44.60 inc-VAT) per pack
Knauf Earthwool® Flexible Slab 60mm, 10 x 0.6x1.2m = 7.2m² - ranging from £5.90 to £6.18 per m²
1 plus packs @ £6.18 per m² / £4.45 per slab = £44.48 (£53.38 inc-VAT) per pack
15 plus packs @ £6.12 per m² / £4.41 per slab = £44.09 (£52.91 inc-VAT) per pack
29 plus packs @ £6.07 per m² / £4.37 per slab = £43.70 (£52.44 inc-VAT) per pack
43 plus packs @ £6.01 per m² / £4.33 per slab = £43.30 (£51.96 inc-VAT) per pack
58 plus packs @ £5.96 per m² / £4.29 per slab = £42.91 (£51.49 inc-VAT) per pack
73 plus packs @ £5.90 per m² / £4.25 per slab = £42.51 (£51.01 inc-VAT) per pack
Knauf Earthwool® Flexible Slab 70mm, 8 x 0.6x1.2m = 5.76m² - ranging from £6.18 to £6.45 per m²
1 plus packs @ £6.45 per m² / £4.64 per slab = £37.15 (£44.58 inc-VAT) per pack
13 plus packs @ £6.40 per m² / £4.61 per slab = £36.84 (£44.21 inc-VAT) per pack
25 plus packs @ £6.34 per m² / £4.57 per slab = £36.53 (£43.84 inc-VAT) per pack
38 plus packs @ £6.29 per m² / £4.53 per slab = £36.21 (£43.45 inc-VAT) per pack
51 plus packs @ £6.23 per m² / £4.49 per slab = £35.90 (£43.08 inc-VAT) per pack
64 plus packs @ £6.18 per m² / £4.45 per slab = £35.59 (£42.71 inc-VAT) per pack
Knauf Earthwool® Flexible Slab 90mm, 6 x 0.6x1.2m = 4.32m² - ranging from £7.60 to £7.93 per m²
1 plus packs @ £7.93 per m² / £5.71 per slab = £34.27 (£41.12 inc-VAT) per pack
16 plus packs @ £7.87 per m² / £5.66 per slab = £33.98 (£40.78 inc-VAT) per pack
32 plus packs @ £7.80 per m² / £5.62 per slab = £33.69 (£40.43 inc-VAT) per pack
49 plus packs @ £7.73 per m² / £5.57 per slab = £33.40 (£40.08 inc-VAT) per pack
66 plus packs @ £7.66 per m² / £5.52 per slab = £33.11 (£39.73 inc-VAT) per pack
83 plus packs @ £7.60 per m² / £5.47 per slab = £32.83 (£39.40 inc-VAT) per pack
Knauf Earthwool® Flexible Slab 100mm, 6 x 0.6x1.2m = 4.32m² - ranging from £8.65 to £9.03 per m²
1 plus packs @ £9.03 per m² / £6.50 per slab = £39.02 (£46.82 inc-VAT) per pack
14 plus packs @ £8.96 per m² / £6.45 per slab = £38.69 (£46.43 inc-VAT) per pack
29 plus packs @ £8.88 per m² / £6.39 per slab = £38.36 (£46.03 inc-VAT) per pack
43 plus packs @ £8.81 per m² / £6.34 per slab = £38.04 (£45.65 inc-VAT) per pack
58 plus packs @ £8.73 per m² / £6.29 per slab = £37.71 (£45.25 inc-VAT) per pack
73 plus packs @ £8.65 per m² / £6.23 per slab = £37.38 (£44.86 inc-VAT) per pack
Knauf Earthwool® Flexible Slab 140mm, 3 x 0.6x1.2m = 2.16m² - ranging from £12.13 to £12.66 per m²
1 plus packs @ £12.66 per m² / £9.12 per slab = £27.35 (£32.82 inc-VAT) per pack
17 plus packs @ £12.56 per m² / £9.04 per slab = £27.12 (£32.54 inc-VAT) per pack
34 plus packs @ £12.45 per m² / £8.96 per slab = £26.89 (£32.27 inc-VAT) per pack
51 plus packs @ £12.34 per m² / £8.89 per slab = £26.66 (£31.99 inc-VAT) per pack
68 plus packs @ £12.24 per m² / £8.81 per slab = £26.43 (£31.72 inc-VAT) per pack
86 plus packs @ £12.13 per m² / £8.73 per slab = £26.20 (£31.44 inc-VAT) per pack
Earthwool DriTherm Cavity Slabs are for the thermal insulation of masonry cavity external walls and are installed to fully fill the cavity. They are approved for use in buildings up to 12m high in any exposure zone and for use in multi-storey applications up to 25m in height.
Dritherm Cavity is suitable for use as partial and full fill cavity wall insulation and is effective in reducing the thermal transmittance (U value) of cavity walls with masonry inner and outer leaves.
Earthwool Cavity Slabs are semi-rigid or rigid slabs of non-combustible, water repellent, glass mineral wool. They are 455mm wide to suit standard vertical wall tie spacings, ensuring a closed joint with adjacent slabs.
Knauf Earthwool® DriTherm Cavity Slab 32 Ultimate 75mm, 6 x 0.455x1.2m = 3.28m² - ranging from £11.75 to £12.30 per m²
1 plus packs @ £12.30 per m² / £6.72 per slab = £40.33 (£48.40 inc-VAT) per pack
6 plus packs @ £12.19 per m² / £6.66 per slab = £39.97 (£47.96 inc-VAT) per pack
11 plus packs @ £12.08 per m² / £6.60 per slab = £39.62 (£47.54 inc-VAT) per pack
16 plus packs @ £11.97 per m² / £6.54 per slab = £39.26 (£47.11 inc-VAT) per pack
21 plus packs @ £11.86 per m² / £6.48 per slab = £38.90 (£46.68 inc-VAT) per pack
26 plus packs @ £11.75 per m² / £6.43 per slab = £38.55 (£46.26 inc-VAT) per pack
Knauf Earthwool® DriTherm Cavity Slab 32 Ultimate 85mm, 5 x 0.455x1.2m = 2.73m² - ranging from £13.29 to £13.91 per m²
1 plus packs @ £13.91 per m² / £7.59 per slab = £37.97 (£45.56 inc-VAT) per pack
5 plus packs @ £13.78 per m² / £7.53 per slab = £37.63 (£45.16 inc-VAT) per pack
9 plus packs @ £13.66 per m² / £7.46 per slab = £37.29 (£44.75 inc-VAT) per pack
14 plus packs @ £13.54 per m² / £7.39 per slab = £36.96 (£44.35 inc-VAT) per pack
19 plus packs @ £13.41 per m² / £7.32 per slab = £36.62 (£43.94 inc-VAT) per pack
24 plus packs @ £13.29 per m² / £7.26 per slab = £36.29 (£43.55 inc-VAT) per pack
Knauf Earthwool® DriTherm Cavity Slab 32 Ultimate 100mm, 6 x 0.455x1.2m = 3.28m² - ranging from £15.34 to £16.05 per m²
1 plus packs @ £16.05 per m² / £8.78 per slab = £52.65 (£63.18 inc-VAT) per pack
6 plus packs @ £15.91 per m² / £8.70 per slab = £52.18 (£62.62 inc-VAT) per pack
11 plus packs @ £15.77 per m² / £8.62 per slab = £51.72 (£62.06 inc-VAT) per pack
16 plus packs @ £15.63 per m² / £8.54 per slab = £51.25 (£61.50 inc-VAT) per pack
22 plus packs @ £15.48 per m² / £8.46 per slab = £50.78 (£60.94 inc-VAT) per pack
27 plus packs @ £15.34 per m² / £8.39 per slab = £50.32 (£60.38 inc-VAT) per pack
Knauf Earthwool® DriTherm Cavity Slab 34 Super 75mm, 10 x 0.455x1.2m = 5.46m² - ranging from £8.90 to £9.31 per m²
1 plus packs @ £9.31 per m² / £5.09 per slab = £50.85 (£61.02 inc-VAT) per pack
6 plus packs @ £9.23 per m² / £5.04 per slab = £50.40 (£60.48 inc-VAT) per pack
11 plus packs @ £9.15 per m² / £5.00 per slab = £49.95 (£59.94 inc-VAT) per pack
17 plus packs @ £9.07 per m² / £4.95 per slab = £49.50 (£59.40 inc-VAT) per pack
22 plus packs @ £8.98 per m² / £4.91 per slab = £49.05 (£58.86 inc-VAT) per pack
28 plus packs @ £8.90 per m² / £4.86 per slab = £48.60 (£58.32 inc-VAT) per pack
Knauf Earthwool® DriTherm Cavity Slab 34 Super 100mm, 8 x 0.455x1.2m = 4.37m² - ranging from £11.62 to £12.16 per m²
1 plus packs @ £12.16 per m² / £6.64 per slab = £53.12 (£63.74 inc-VAT) per pack
6 plus packs @ £12.05 per m² / £6.58 per slab = £52.65 (£63.18 inc-VAT) per pack
11 plus packs @ £11.94 per m² / £6.52 per slab = £52.18 (£62.62 inc-VAT) per pack
16 plus packs @ £11.83 per m² / £6.46 per slab = £51.71 (£62.05 inc-VAT) per pack
21 plus packs @ £11.73 per m² / £6.41 per slab = £51.24 (£61.49 inc-VAT) per pack
27 plus packs @ £11.62 per m² / £6.35 per slab = £50.77 (£60.92 inc-VAT) per pack
Knauf Earthwool® DriTherm Cavity Slab 37 Standard 50mm, 12 x 0.455x1.2m = 6.55m² - ranging from £4.16 to £4.35 per m²
1 plus packs @ £4.35 per m² / £2.38 per slab = £28.51 (£34.21 inc-VAT) per pack
8 plus packs @ £4.31 per m² / £2.36 per slab = £28.26 (£33.91 inc-VAT) per pack
15 plus packs @ £4.27 per m² / £2.33 per slab = £28.00 (£33.60 inc-VAT) per pack
22 plus packs @ £4.24 per m² / £2.31 per slab = £27.75 (£33.30 inc-VAT) per pack
30 plus packs @ £4.20 per m² / £2.29 per slab = £27.50 (£33.00 inc-VAT) per pack
37 plus packs @ £4.16 per m² / £2.27 per slab = £27.25 (£32.70 inc-VAT) per pack
Knauf Earthwool® DriTherm Cavity Slab 37 Standard 65mm, 10 x 0.455x1.2m = 5.46m² - ranging from £4.80 to £5.03 per m²
1 plus packs @ £5.03 per m² / £2.74 per slab = £27.44 (£32.93 inc-VAT) per pack
7 plus packs @ £4.98 per m² / £2.72 per slab = £27.19 (£32.63 inc-VAT) per pack
13 plus packs @ £4.94 per m² / £2.70 per slab = £26.95 (£32.34 inc-VAT) per pack
19 plus packs @ £4.89 per m² / £2.67 per slab = £26.71 (£32.05 inc-VAT) per pack
26 plus packs @ £4.85 per m² / £2.65 per slab = £26.47 (£31.76 inc-VAT) per pack
32 plus packs @ £4.80 per m² / £2.62 per slab = £26.22 (£31.46 inc-VAT) per pack
Knauf Earthwool® DriTherm Cavity Slab 37 Standard 75mm, 8 x 0.455x1.2m = 4.37m² - ranging from £5.07 to £5.30 per m²
1 plus packs @ £5.30 per m² / £2.90 per slab = £23.18 (£27.82 inc-VAT) per pack
6 plus packs @ £5.26 per m² / £2.87 per slab = £22.98 (£27.58 inc-VAT) per pack
12 plus packs @ £5.21 per m² / £2.85 per slab = £22.77 (£27.32 inc-VAT) per pack
18 plus packs @ £5.16 per m² / £2.82 per slab = £22.57 (£27.08 inc-VAT) per pack
24 plus packs @ £5.12 per m² / £2.80 per slab = £22.36 (£26.83 inc-VAT) per pack
31 plus packs @ £5.07 per m² / £2.77 per slab = £22.15 (£26.58 inc-VAT) per pack
Knauf Earthwool® DriTherm Cavity Slab 37 Standard 85mm, 8 x 0.455x1.2m = 4.37m² - ranging from £5.74 to £6.00 per m²
1 plus packs @ £6.00 per m² / £3.28 per slab = £26.23 (£31.48 inc-VAT) per pack
6 plus packs @ £5.95 per m² / £3.25 per slab = £26.00 (£31.20 inc-VAT) per pack
11 plus packs @ £5.90 per m² / £3.22 per slab = £25.77 (£30.92 inc-VAT) per pack
16 plus packs @ £5.84 per m² / £3.19 per slab = £25.53 (£30.64 inc-VAT) per pack
22 plus packs @ £5.79 per m² / £3.16 per slab = £25.30 (£30.36 inc-VAT) per pack
27 plus packs @ £5.74 per m² / £3.13 per slab = £25.07 (£30.08 inc-VAT) per pack
Knauf Earthwool® DriTherm Cavity Slab 37 Standard 100mm, 12 x 0.455x1.2m = 6.55m² - ranging from £6.67 to £6.98 per m²
1 plus packs @ £6.98 per m² / £3.81 per slab = £45.71 (£54.85 inc-VAT) per pack
6 plus packs @ £6.92 per m² / £3.78 per slab = £45.31 (£54.37 inc-VAT) per pack
12 plus packs @ £6.85 per m² / £3.74 per slab = £44.90 (£53.88 inc-VAT) per pack
18 plus packs @ £6.79 per m² / £3.71 per slab = £44.50 (£53.40 inc-VAT) per pack
24 plus packs @ £6.73 per m² / £3.67 per slab = £44.09 (£52.91 inc-VAT) per pack
31 plus packs @ £6.67 per m² / £3.64 per slab = £43.69 (£52.43 inc-VAT) per pack
Knauf Earthwool® DriTherm Cavity Slab 37 Standard 125mm, 6 x 0.455x1.2m = 3.28m² - ranging from £8.37 to £8.76 per m²
1 plus packs @ £8.76 per m² / £4.79 per slab = £28.72 (£34.46 inc-VAT) per pack
6 plus packs @ £8.68 per m² / £4.74 per slab = £28.46 (£34.15 inc-VAT) per pack
12 plus packs @ £8.60 per m² / £4.70 per slab = £28.21 (£33.85 inc-VAT) per pack
18 plus packs @ £8.52 per m² / £4.66 per slab = £27.96 (£33.55 inc-VAT) per pack
24 plus packs @ £8.45 per m² / £4.62 per slab = £27.70 (£33.24 inc-VAT) per pack
30 plus packs @ £8.37 per m² / £4.58 per slab = £27.45 (£32.94 inc-VAT) per pack
Availability: Rockwool Insulation:
Standard Rockwool products are generally readily available in most thickness’s at the lower densities such as 45kg/m² and 60kg/m². As the slab densities increase, and product popularity declines, short lead times may result. Knauf Earthwool:
Although these products are popular, availability is sketchy, particularly outside of London. Please consider Rockwool products as an alternative. Avalability Indicators:
Please observe the 'Star Rating' indicators to assess availability.
Excellent = Good = Fair = Poor = Undetermined =
Product availability depends upon stock levels at closest depot and delivery logistics to geographic locations
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Rockwool Building Slab RWA45 25mm, 16 x 0.6x1.2m = 11.52m² - ranging from £1.32 to £1.38 per m²
Knauf Earthwool® Building Slab RS33 40mm, 12 x (14 x 0.6x1.2m) = 120.96m² - ranging from £3.74 to £3.91 per m²
Knauf Earthwool® DriTherm Cavity Slab 32 Ultimate 75mm, 6 x 0.455x1.2m = 3.28m² - ranging from £11.75 to £12.30 per m²
Good =
Fair =
Poor = 
Undetermined =