New Build Basement Conversion Project

Insulating Concrete Formwork (ICF) build off a RC raft for a new build in Sheffield

  • Type A: Barrier Protection – external waterproofing
  • Type C: Drained Protection – internal waterproofing

Incorporating Delta Dual Proof pre-applied water proofing membrane prior to pouring the concrete slab over the formwork system.

Primary resistance of the structure is provided by Koster Deuxan-2C polymer modified thick bitumen compound bitumen-based waterproofing on the positive side.  Once the Deuxan has cured Delta-GeoDrain Quattro membrane is mechanically installed with joints overlapped and sealed.  Finally, 8mm cavity drainage membrane to be installed on all walls.

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