Supabloc 4 is extremely versatile, and can be used where just one block type is required for use in external and separating walls in houses and apartments, as well as other building types.
Durox Supabloc 4 working dimensions
Face dimensions are 620mm long x 215mm high.
Block widths and weights
| Block width (mm) | 100 | 115 | 140 | 150 | 200 | 215 |
| Unit weights (kg) | 8.7 | 10.0 | 12.1 | 13.0 | 17.3 | 18.6 |
| Laid weight (kg/m²) | 72 | 83 | 100 | 108 | 143 | 154 |
Unit and laid weights, which are given for design purposes, are approximate and calculated based on the specified dry density with a 3% moisture content by weight added to provide equilibrium weights.
Durox Supabloc 4 applications
- Inner leaf of cavity walls
- Outer leaf of cavity walls, clad or rendered*
- Cavity separating walls including those conforming to Robust Details E-WM-6 and E-WM-15
- Foundation walls in soils up to Design Sulfate Class DS-3
*When rendered, Supabloc 4 is recommended in conjuction with partial cavity insulation.
Durox Supabloc 4 environmental performance
Supabloc 4 is manufactured under an ISO 14001 compliant Environmental Management System that is independently certified by BSI. Summary green guide ratings applicable to Supabloc aircrete blocks can be found in the BRE Green Guide to Specification http://www.thegreenguide.org.uk/.
Durox Supabloc 4 specification
- Mean compressive strength: 4.2N/mm²
- Thermal conductivity: 0.16W/mK
- Gross dry density: 630kg/m³
- Reaction to fire: Class A1
Supabloc 4 is manufactured to comply with EN 771-4 and conforms to Category 1 manufacturing control as specified in BS 5628-1.
