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Basement Construction Joints

Read on to find out when and how to create basement construction joints.

Estimated reading time: 1 minute

A basement construction joints diagram using Construction Joint Tape and Vandex Expaseal.

How to Create Basement Joints

Construction joints are a particular weak points in basement structures through which water can penetrate. Therefore, joints between components, including day work joints, should be durable and watertight and include appropriate waterstops (Drybase Quellmax Plus Waterbar) or hydrophilic strips. Kickers, usually cast as part of the slab, should be used to form the joint between floors and walls (NHBC Chapter 5.4).

The above design should detail proprietary components for waterproofing complex junctions in basement waterproofing projects.

Any basement design should also include the correct method and details to form all joints and junctions when using cavity drainage membranes. This design ensure junctions are correctly lapped and sealed in accordance with the manufacturer’s recommendations. This includes the junctions between:

  • Waterproofing system and superstructure damp proofing

  • Horizontal and vertical waterproofing

  • Waterproofing components

Get it Done

Oldroyd Xv20 Cavity Drainage Membrane (2m x 15m Roll) High flow-capacity 2m x 15m cavity drainage membrane with 20 mm stud profile.
£285.29
Drybase Construction Joint Tape (30m Roll) Waterproofing tape for construction joints above ground and underground (e.g. basements). 30m roll.
£79.38
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