Flooded sub-floor voids
While basements and cellars suffer water penetration more visibly than sub-floor voids, this does not mean to say that below ground (sub-floor voids) are any less prone to water penetration and flooding.
By James Hockey
.avif)
What are the implications of a flooded sub-floor?
Walls which reside in standing water are more prone to rising dampness, a process by which the surface tension of water wicks water up through the pores in the building materials (mortar beds typically). In the event that a functional DPC (Damp Proof Course) is included within the walls at a suitable position, this rising damp should be of no real consequence, so what else is there?
Well, standing water results in air-borne water vapour. If the floor construction over the sub-floor void is suspended timber, (i.e. timber joists & floorboards), then this may suffer as a result. More specifically, timber is hygroscopic, in that it will absorb moisture from the air, so high humidity results in high moisture content within the timber, this (if high enough) encouraging decay and loss of structural strength in the long term. While we do not wish to overly alarm those with such issues, but it is something to be aware of and to address in the event that timbers register excessively high moisture content.
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We take full accountability for the waterproofing process, serving as a single point of responsibility to ensure seamless coordination and execution. This approach protects all stakeholders by minimising risk, eliminating communication gaps, and ensuring the highest standards of quality and reliability throughout the project.
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