Wood chip cavity fill insulation - Cemwood CW1000


Cemwood CW1000 cavity fill is:-

  • an eco friendly, free flowing, cavity fill insulation made from mineralised wood chips.
  • ideal for filling block/brick cavities where external insulation will be applied.
  • excellent as acoustic and thermal insulation in suspended floors.
  • a levelling underlay to the Lithotherm underfloor heating heating system.
  • great for adding thermal mass to a building.

Where is it used?

  • It is free flowing and so can be blown or poured into cavities to add insulation to walls and into to awkward areas such as suspended floors, between joists. 
  • It can also be used up to 100mm thickness as a levelling fill under floors or our Lithotherm underfloor heating.

How is it used?

  • Voids should be dry and free of debris and moisture for maximum effectiveness. 
  • The Cemwood CW1000 comes in sacks and can be simply poured in to place and levelled off.
  • If used in a cavity wall ensure cavity trays are installed to prevent Cemwood filling up below DPC.

How much do I need?

  • Each 16kg bag of Cemwood CW1000 will cover up to 1m2 at 50mm thickness. 
  • This product can be bought by the 16kg bag or by the pallet of 36 bags (10% discount on single bag price).
Each 16kg bag of Cemwood CW1000 will cover up to 1m2 at 50mm thickness. Each pallet contains 36 bags (36m2 @50mm thick)


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