Moisture and Mould Reduction
Standard concrete slabs can come in contact with the ground. As a result, moisture can
wick through the concrete and contributes to the growth of mould and mildew under
flooring overlays and damages expensive architectural flooring finishes, floor tiles or
carpets. Keeping the top and bottom of the concrete floor slab dry reduces these
problems and reduces excessive moisture in a building which has been associated with
adverse health effects, particularly asthma and respiratory diseases.
CUPOLEX® provides an under slab void and results in minimal concrete contact with the
soil. The unique advantage over any other slab foundation system is the integrated void
spaces under the concrete slab.
There are three major aspects.
Vapor Intrusion Protection
Even when soil and groundwater standards are met at some sites, vapours of volatile
chemicals can migrate along subsurface pathways and find their way into neighbouring
buildings at levels that compromise indoor air quality. Long time exposure to such
chemicals can potentially have damaging effects on human health. The extent and
likelihood of adverse human health effects are dependent on a number of factors
including, but not limited to, the concentration of the contaminant and the duration of
exposure. When a contaminant concentration in indoor air is high, it may be possible to
detect it by a telltale odour, and the need for remediation can be recognized early and
applied. However, in instances where concentrations are low and not readily discernable,
the determination of the need for remediation is more challenging. Source: ITRC
(Interstate Technology & Regulatory Council).
CUPOLEX® having a air void under the foundation lends itself perfectly for the venting of
these harmful gases out of the building envelope and into the external atmosphere.
Radon gas is only an issue near uranium mining areas in Australia however methane gas
emissions are more common.
The CUPOLEX® system allows Volatile Organic Compounds (VOC's), Radon Gas and
humidity or moisture to be passively vented away from the slab.
Developments built on former dump sites with high levels of methane or areas with high
levels of toxicactivity are particularly suited to the use of CUPOLEX®.