Toplite '7' is intended for loadbearing applications that specify the use of a 7.3N/mm² building block. Combined with low-self weight and high thermal performance, Toplite '7' is suitable for use in town houses, apartments and other highly loaded walls.
Toplite '7' working dimensions
Face dimensions are 440mm long x (various widths) x 215mm high.
Block widths and weights
| Block width (mm) | 100 | 140 | 150 | 190 | 200 | 215 |
| Unit weights (kg) | 7.0 | 9.8 | 10.5 | 13.3 | 14.2 | 15.1 |
| Laid weight (kg/m²) | 81 | 114 | 122 | 155 | 163 | 175 |
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.
Toplite '7' applications
- Loadbearing single leaf and cavity walls
- 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
Toplite '7' environmental performance
Toplite '7' is manufactured under an ISO 14001 compliant Environmental Management System that is independently certified by BSI. Summary green guide ratings applicable to Toplite aircrete blocks can be found in the BRE Green Guide to Specification www.thegreenguide.org.uk.
Toplite '7' specification
- Mean compressive strength: 7.3N/mm²
- Thermal conductivity: 0.19W/mK
- Gross dry density: 720kg/m³
- Reaction to fire: Class A1
Toplite '7' is manufactured to comply with EN771-4 and conforms to Category 1 manufacturing control as specified in BS 5628-1.
