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130769 - 50 Litre bag of light expanded clay aggregate for use with Isokern Pumice chimney liners to insulate the chimney.
Clad the liners with a minimum 100mm thick brickwork. A minimum thickness of 15mm light expanded clay aggregate insulation must be installed between the liners and the masonry. Mix 20 parts to 1 part opc cement and a small amount of water.
If you're using bends please make sure there is adequate support and always backfill with the light expanded clay aggregate.
Light Expanded Clay Calculation Chart
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