Durox is a modern construction material, whose versatility, light weight, thermal and acoustic properties make it the ideal solution for a wide variety of applications in all types of building.
Durox can be used below ground in foundation walls and in all types of internal and external walls. It provides many benefits for specifiers and contractors making it the natural choice where blockwork is specified.
Durox Supabloc combines low unit weight with high thermal insulation and acoustic performance in strengths of 3.6, 4.2, 7.3 and 8.7N/mm2 .
Where can DUROX Supabloc be used?
General purpose walling
Durox Supabloc is recommended for general-purpose walling applications including inner leaves, solid external walls, internal partitions, and solid walls below DPC. They are particularly suited for cavity and solid wall construction that require low U-values to be met. The use of Supabloc will minimise the amount of additional thermal insulation required, compared to the use of denser blocks.
Fire resistance
Durox blocks provide excellent periods of fire resistance which can satisfy Building Regulations and other imposed requirements e.g. those by insurers. All Durox products conform to a fire rating of Class A1 to BS EN 13501-1: 2002.
Sound separating walls
Durox Supabloc 4, 7, and 8 are recommended for use in sound separating walls including those conforming to Robust Details E-WM-6, E-WM-15, E-WM-23, E-WM-24 and E-WM-30.
Loadbearing walls
Durox Supabloc 7 and 8 are suitable for more demanding loadbearing applications, whilst retaining the characteristing low unit weight of aircrete.
Supabloc 7 is typically used in the ground floor of 3 storey housing in accordance with Approved Document A.
Why use DUROX Supabloc?
Durox Supabloc (3.6N)
Block Thickness (mm) |
50 |
100 |
140 |
200 |
Face sizes, mm (length x height) |
310 x 215 |
620 x 215 |
620 x 215 |
620 x 215 |
Unit weight (kg) |
1.6 |
6.3 | 8.8 |
12.6 |
Laid weight (kg/m2) |
28 |
55 | 77 |
111 |
Thermal Conductivity (W/mK) |
0.11 |
0.11 |
0.11 |
0.11 |
Dry Density kg/m3 |
460 |
460 | 460 | 460 |
Sound Insulation (Single Leaf Walls) Rw (dB) |
- |
41 |
44 |
47 |
Sound Insulation (Single Leaf Walls) Rw (dB) |
- |
41 |
45 |
48 |
Fire Resistance (hours) BS EN 1996:1-2 |
- |
4 |
4 |
4 |
Fire Resistance (hours) BS EN 1996:1-2 |
- |
1 |
2 |
4 |
Durox Supabloc 4 (4.2N)
Block Thickness (mm) |
100 |
Face sizes, mm (length x height) |
620 x 215 |
Unit weight (kg) |
8.7 |
Laid weight (kg/m2) |
72 |
Thermal Conductivity (W/mK) |
0.16 |
Dry Density kg/m3 |
630 |
Sound Insulation (Single Leaf Walls) Rw (dB) |
43 |
Sound Insulation (Single Leaf Walls) Rw (dB) |
43 |
Fire Resistance (hours) BS EN 1996:1-2 |
4 |
Fire Resistance (hours) BS EN 1996:1-2 |
2 |
Durox Supabloc 7 (7.3N)
Block Thickness (mm) |
100 |
140 |
200 |
Face sizes, mm (length x height) |
620 x 215 |
620 x 215 |
620 x 215 |
Unit weight (kg) |
9.3 |
13.1 |
18.6 |
Laid weight (kg/m2) |
77 |
107 |
153 |
Thermal Conductivity (W/mK) |
0.19 |
0.19 |
0.19 |
Dry Density kg/m3 |
680 |
680 |
680 |
Sound Insulation (Single Leaf Walls) Rw (dB) |
44 |
47 |
51 |
Sound Insulation (Single Leaf Walls) Rw (dB) |
44 |
47 |
51 |
Fire Resistance (hours) BS EN 1996:1-2 |
4 |
4 |
4 |
Fire Resistance (hours) BS EN 1996:1-2 |
2 |
3 |
4 |
Durox Supabloc 8 (8.7N)
Block Thickness (mm) |
100 |
140 |
Face sizes, mm (length x height) |
620 x 215 |
620 x 215 |
Unit weight (kg) |
9.9 |
13.8 |
Laid weight (kg/m2) |
80 |
113 |
Thermal Conductivity (W/mK) |
0.19 |
0.19 |
Dry Density kg/m3 |
720 |
720 |
Sound Insulation (Single Leaf Walls) Rw (dB) |
44 |
47 |
Sound Insulation (Single Leaf Walls) Rw (dB) |
44 |
47 |
Fire Resistance (hours) BS EN 1996:1-2 |
4 |
4 |
Fire Resistance (hours) BS EN 1996:1-2 |
2 |
3 |
Downloads
Download files individually or add multiple files to a zip folder.
- UKCA Certificate of Conformity CPR Aerated Blocks
- Blocks Brochure Overview
- Durox Supabloc Brochure
- BBA certificate Durox Supabloc 7 and Foundation 7
- Blocks safety data sheet
- Durox pack and load guide
- Blocks pallet guide
- Blocks delivery considerations
- Delivery vehicle options
- Receiving blocks deliveries
- Constructive thinking brochure
- 008 DoP Aerated Blocks
- BBA Certificate Durox Supabloc and Foundation 3.6N
- 008 UK UKCA Aerated Blocks
- BBA Certificate Supabloc 8
- BBA Certificate Supabloc 4