HELUZ FAMILY 38 grinded

Product category: Clay blocks for Siding and Inner Walls / HELUZ FAMILY
Dimensions (LxWxH): 247 x 380 x 249 mm
Weight: 15 Kg
Class of compression strength: 10 MPa
Heat diffusion coefficient U: 0.2 W/m2K
Thermal resistance R: 4.89 m2K/W
Airborne sound insulation: 40 dB
Comsumption of bricks per m2: 16
Comsumption of bricks per m3: 42.1
Number of pieces per pallet: 72

The heat diffusion coefficient values “U” are given with plasters for the production plant in Hevlín at the strength 8 MPa or 10 MPa and thermal insulation mortar or mortar for full-area thin joint Heluz with ground bricks, if not mentioned otherwise.
More information about the product can be found in the current Pricelist or the Product Catalogue.


For single-layer perimeter walls of passive, low-energy and energy-efficient buildings.

FAMILY ground clay blocks have the best thermal insulation properties on the market in comparison with other materials for single-layer walls without filled out cavities. FAMILY clay blocks possess one of the most elaborate clay blocks block geometries, which minimizes heat transfer while maintaining high strength.


  • best thermal insulation properties in the category of unfilled clay blocks suitable for low-energy and passive houses, heat transfer coefficient U up to 0.14 W/m2K
  • cost-optimal variant, i.e. investment in the brickwork in proportion to its return is the highest
  • comfortable room micro-climate
  • a comprehensive system solution for the building envelope in a single-layer structure
  • a good prerequisite for obtaining the label for low-energy and passive houses
  • solid, safe structure
  • natural water vapour transmission - the brickwork breathes

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