Toplite GTI 3.6N/mm²
A higher strength version of Toplite GTI is available from our Linford (Essex) factory serving the home counties. This is the preferred Toplite solution to these locations for the construction of inner leaves, solid external walls and internal walls. It can also be used below ground in sulfate conditions not exceeding DS-2.
Technical properties
- Manufactured to BS EN 771-4
- Mean compressive strength: 3.6N/mm²
- Dry density: 460kg/m³
- Thermal conductivity (at 3% moisture content): 0.11W/mK
- Reaction to fire: Class A1
- Typical airtightness: 100mm blocks - all grades, no finish 0.12m³(h.m²) at 50 PA
- Block size: 440mm long x 70-215mm (various widths) x 215mm high
Sizes & weights for GTI (3.6N/mm²)
| Block width (mm) | 70 | 100 | 125 | 140 | 150 | 200 | 215 | ||
| Unit weight (kg) | 3.3 | 4.7 | 5.8 | 6.5 | 7.0 | 9.4 | 10.1 |
Unit weights are approximate and based on 3% moisture content
Tolerance to BS EN 771-4: Length +3/-5mm, Height +3/-5mm, Thickness +2/-2mm
Product Availability
Toplite GTI 3.6N/mm² is manufactured at Topblock's Linford plant, Essex and supplies the home counties and areas south of the M4.
If you are based in the North, Midlands or East Anglia please see Toplite GTI 2.9N/mm²
Toplite GTI 3.6 Downloads
Topblock Toplite Aircrete Blocks Brochure (pdf, 903kb)
Topblock Toplite GTI 3.6N/mm3 Product Data Sheet (pdf, 239kb)
See all Toplite applications
