Waterproofing Buried roofs/Podium Decks/Balconies & Terraces

In various formats podium decks have been around for many years, however they are becoming more widely used on top of basement constructions as either paved areas, gardens or terraces.

A podium deck is a structural element which is essentially an elevated platform which allows for usage both above and below, these may be terraces over underground car parks, gardens over basements, balconies over terraces and patios.

With their increase in popularity there is an increased need to ensure the waterproofing design is correct both for the above area use and the below deck use. Continuity of waterproofing and/or appropriate overlapping and detailing is critical for success.

The key to successful waterproofing is a robust design considered at the earliest stage of the project.

Delta Membrane Systems Limited has a comprehensive range of waterproofing and drainage products specifically suited for the successful waterproofing of buried roofs, podium decks, balconies and terraces.

Considerations for the appropriate waterproofing products include:

  • Deck/Buried roof construction material
  • Number of joints
  • Movement due to deflection under loading
  • Build up on top of deck
  • Use of space below
  • Tightness of site space (built to plot boundaries)

Delta membrane Systems product range includes:

  • Liquid applied systems – for seamless waterproofing
  • Elastomeric Systems – to accommodate anticipated movement
  • Sheet systems
  • Drainage and Protection membranes
  • Joint sealing and detailing systems

For surface preparation, joint sealing and detailing products include Koster Repair Mortar Plus, Koster SB Bonding, Koster KBE Liquid Film, Koster Poylsil TG500 and Koster KB Flex 200.

For liquid applied waterproofing layers products include Koster Deuxan 2C, Koster 21, Köster NB400 incorporating either Koster Glass Fibre Mesh or Koster Flex Fabric.

Bonded sheet membranes include Koster KSK SY  15 bitumen sheet system.

Additional drainage and protection layers include the Delta Geo Drain Quattro, Delta Terraxx and Delta NP-Drain.

For further information or assistance please contact a member of Delta’s Technical team on 01992 523 523 or email technical@deltamembranes.com.

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