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Blockwork solutions Hemelite is a range of lightweight aggregate blocks available in a variety of formats and suited to a number of loadbearing applications. Blockwork solutions Walls Walls above and below ground including separating walls (ideal for finishing with with render, cladding, plaster or dry lining) Hemelite Standard Commercial and leisure buildings that require direct decoration Solid and cavity masonry separating walls in residential buildings such as hotels and student accommodation Hemelite Coursing bricks Hemelite Standard Hemelite Standard and Paint Quality 10 Hemelite Foundation...

Blockwork solutions Blockwork solutions Hemelite lightweight aggregate blocks are suitable for use in walls above and below ground and in block and beam floors. They have a proven high level of technical performance. 01 Loadbearing A range of strengths caters for the requirements of general housing and other buildings. 02 easy to decorate Ideal background for drylining, plaster, rendering and fixings. 03 Sound insulation Excellent sound insulation properties that comply with Robust Detail specifications and the Building Regulations. See also: 14 Applications 26 Thermal insulation 28 Packs Excellent...

Blockwork solutions Hemelite Standard Hemelite Standard and Paint Quality For general use in walls above and below ground and in beam and block floors, or close textured blocks for walls in commercial and leisure buildings which are to receive direct decoration. 215mm 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. Hemelite Paint Quality Close textured blocks ideally suited for walls in commercial and leisure buildings which are to receive direct decoration. It is recommended that Hemelite Paint...

Blockwork solutions Blockwork solutions Hemelite Standard and Paint Quality (continued) Table 4: Performance summary Standard Fire resistance, no finish (hrs) Sound reduction, (RwdB) Single leaf wall Lightweight plaster Sound reduction, (RwdB) Block thermal resistance (m2k/w) Paint Quality Fire resistance, no finish (hrs) Block thermal resistance (m k/w) Single leaf wall Paint finish only Notes The values for fire resistance and sound insulation apply to Hemelite blocks of any strength Fire resistance - the application of plaster or drylining finishes will generally increase the period of fire resistance...

Hemelite Foundation blocks are produced specifically for use below DPC in solid walls. 140mm Increased productivity Replaces traditional inner and outer leaf with one block, potentially halving construction time. Insulation Screed Fig 1: Hemelite Foundation blocks below DPC Each block has recessed groves to ease handling. Foundation blocks Table 5: Material properties Foundation block is produced specifically for use below DPC in solid walls. Block size 255 x 290 x 140mm Compressive strength to BS EN 771-3 (N/mm2) It replaces the inner and outer leaf, wall ties and concrete cavity fill associated...

Hemelite Coursing bricks Coursing bricks are designed for use with the range of Hemelite blocks. 65mm 100mm Less wastage Ideal for infilling over lintels and between floor joists Consistent background Provides a uniform background to receive render or plaster. Application Coursing bricks should be used for general coursing work, in-filling small areas of wall such as between timber floor or roof members as well as maintaining the coursing over lintels and at sills. Their use can eliminate cutting and wastage. Table 6: Material properties Block size 215 x 100 x 65mm Compressive strength to BS EN 771-3...

Aggregate block applications TBP aggregate blocks are suitable for a wide range of applications. Separating walls The Building Regulations require separating walls to provide reasonable resistance to sound transmission. Guidance on suitable Hemelite and Topcrete constructions capable of meeting the specified performance given in Approved Document E is shown on pages 16-19. This includes constructions that can be built to satisfy Robust Details. The use of Robust Details provides an alternative to pre-completion testing for demonstrating compliance with Part E for new build dwellings. Robust Details...

Separating walls (continued) New dwellings – Robust Details E-WM-1*, E-WM-2* (dense and lightweight aggregate blocks with wet plaster) E-WM-18* (dense and lightweight aggregate blocks with wet plaster) 2 x 100mm Topcrete or Hemelite blocks, minimum 75mm cavity, 13mm plaster or cement - sand render with plaster skim (min 10kg/m2) both sides. 2 x 100mm Topcrete or Hemelite blocks, minimum 100mm cavity, 13mm plaster or cement - sand render with plaster skim (min 10kg/m2) both sides. E-WM-3*, E-WM-4* (dense and lightweight aggregate blocks with gypsum-based board on dabs) no site testing required...

Internal walls* Any grade of Hemelite or Topcrete can be used for the construction of internal walls. Internal floors* Approved Document ‘E’ prescriptive solutions or TBP constructions which have been shown by testing to meet the regulations. For partitions in dwellings, these products can be used to provide good levels of airborne sound insulation as well as a suitable background for fixings and finishes. Approved Document E requires that internal floors in dwellings provide the minimum sound insulation of 40RwdB. Hemelite and Topcrete blocks, when used in beam and block floors, can exceed this....

Walls below DPC Hemelite and Topcrete Standard blocks are suitable for constructing internal and external walls below ground. External walls In cavity walls, Hemelite or Topcrete may be used for either or both leaves, normally with a minimum width of 90mm. For the outer leaf of external cavity walls, or solid external walls below ground, any Topcrete product can be used, or Hemelite Standard blocks of 7.3N/mm2 strength. However, for protected locations, such as the inner leaf of a cavity wall or internal walls, Hemelite Standard 3.6N/mm2 solid or cellular blocks may be used. These products are...