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Thermalite Aircrete Hi-Strength 7 Block
Verified by manufacturer 1 day ago
440 x 100 x 215 mm
440 x 100 x 215 mm
Aircrete blocks with a closed micro-cellular structure.
Application
Suitable for internal and external cavity walls, both below and above the damp-proof course (DPC), separating walls, partitions, and rendering.
Description
Our Thermalite Hi-Strength 7 range is engineered for higher-load environments, including dwellings above 2.5 storeys and room-in-roof construction, where increased structural capacity is required.
Delivering a compressive strength of 7.3 N/mm², this robust block provides reliable structural support when strength and durability are non-negotiable.
Manufactured in accordance with BS EN 771-4, complies with all relevant Masonry Wall Robust Details, and aids in compliance of Building Regulations – Approved Documents Part A, B, E & L.
General information
Color | Grey |
Finish | Micro-textured |
Material | Autoclaved aerated concrete (AAC) |
Shape | Rectangle |
Length | 440 mm |
Width | 100 mm 140 mm 150 mm 190 mm 200 mm |
Height | 215 mm |
Uniclass | |
CAWS | F10/360 Autoclaved aerated concrete (AAC) common blockwork F10/355 Concrete common blockwork F10/370 Thin-joint autoclaved aerated concrete (AAC) common blockwork F10/39 Thin joint autoclaved aerated concrete (AAC) common blockwork F10/37 Autoclaved aerated concrete (AAC) common blockwork F10/36 Concrete common blockwork |
Specification data - Autoclaved aerated concrete (AAC) blocks
Classification data | |
Description | Aircrete blocks. |
Standard | To BS EN 771-4. |
Configuration | Group 1. |
Mean compressive strength (minimum) | |
Category | II. |
Freeze-thaw resistance | Not to be left exposed. |
Thermal conductivity (maximum) | 0.16 W/mK. Guidance for specification option:
|
Work sizes (length x width x height) | 440 x 100 x 215 mm. Guidance for specification option: Height and length tolerance: -5 to +3 mm. Width tolerance: -3 to +3 mm. |
Tolerance category | GPLM. |
Density | 730 kg/m³. |
Reaction to fire | Class A1 to BS EN 13501-1. |
Moisture movement | 0.5 mm/m. |
Shear bond strength | 0.15 N/mm². |
Water vapour permeability | 5/10. |
Unit weight | 9.1 kg. |
Typical compressive strength | 7.3 N/mm². Guidance for specification option: Mean value: 7.38 N/mm². |
Vapour resistivity | 50 MN.s/g.m. |
Third party accreditation | BBA certificate. |
Sustainability data
Country of product manufacture | United Kingdom |
Manufacturing plant location | |
Material | Autoclaved aerated concrete (AAC) |