Hemelite Ultralite

Hemelite is a range of lightweight aggregate blocks available in a variety of formats and suited to a number of loadbearing applications.

Hemelite Ultralite is an ultra low density aggregate block.


  • Cavity walls below DPC
  • Separating Walls
  • Solid and Cavity Walls above and below DPC
  • Beam and Block Floors
  • Cavity walls
  • Solid internal walls
  • Solid external walls


  1. Low unit weight

    Easy to handle, high strength to weight ratio, lower overall build weight.

  2. Excellent acoustic and thermal performance

    Good U-values and Rw values, as well as Robust Details.  

  3. Range of strengths

    Range of options available for wide range of specifications.  

  4. Sound Insulation

    Excellent sound insulation properties that comply with Robust Detail specifications and the Building Regulations.  

  5. Easy to decorate

    Ideal background for drylining, plaster, rendering and fixings.  

Application Details

For general use in walls above and below ground and in beam and block floors. They are ideal for finishing with render, cladding, plaster or drylining.

Separating Walls
The range of Hemelite solid blocks can be used with a number of Robust Detail constructions, including those with fully filled cavities, avoiding the need for pre-completion testing. In addition these constructions may be used with various robust detail separating floors.

Loadbearing walls
Hemelite is available in a range of strengths from 3.6 to 10.4N/mm2 which make them suitiable for a variety of structural applications from domestic to commercial building.

Hemelite blocks are producted to comply with 'Category 1' manufacturing control to BS EN 771-1 to 16.

Hemelite blocks provide excellent periods of fire resistance which can satisfy building regulations and other imposed requirements e.g those of insurers. All Hemelite products conform to a fire rating of Class A1 to BS EN 13501-1:2002

Sound insulation
Hemelite blocks may be used to provide acoustic insulation between internal rooms to meet the requirements of Part E building regulations.

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