Toplite GTI 2.9N/mm²

Toplite GTI blocks have very good insulation properties making them particularly suitable for the construction of inner leaves of cavity walls, and solid external walls that are clad or rendered.  They can also be used below ground to the inner leaf of cavity walls or internal walls in sulfate conditions not exceeding DS-1.

 

Technical properties

- Manufactured to BS EN 771-4

- Mean compressive strength: 2.9N/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 100-215mm (various widths) x 215mm high

 

Sizes & weights for GTI (2.9N/mm²)

Block width (mm)	100	115	125	140	150	190	200	215
Unit weight (kg)	4.7	5.4	5.8	6.5	7.0	8.9	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

Greater thicknesses are available in Toplite Foundation.

 

Product Availability

See map below.

Toplite 2.9N/mm² is manufactured at Topblock's Alfreton plant supplying the Midlands, East Anglia and Northern counties.
If you are based south of the M4 please see Toplite 3.6N/mm².

For details please contact us.

 

 

 

 

 

 

 

 

 

 

 

 

 

Find out more

Download the Topblock Toplite Aircrete Blocks Brochure (pdf, 903kb)

See all Toplite applications