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Cavity Drainage System
Cavity Drainage Systems, often referred to as CDS, is a revolutionary approach to keeping your underground structures and building foundations dry. Unlike traditional methods, which may involve external excavation, the Cavity Drainage System is a proactive, internal solution.
The Cavity Drainage System works on a simple principle: it manages water ingress rather than trying to resist it. It allows water to enter the structure but ensures that it never causes any damage. This is achieved through a combination of specially designed membranes and drainage channels.
The membranes are applied to the walls and floors, creating a barrier that prevents water from entering the living space while allowing it to enter the cavity behind the membrane. This water then naturally flows into the drainage channels and is collected in a sump. From there, it is pumped out and safely disposed of, keeping your basement or underground areas dry and free from the damaging effects of water ingress.
How Cavity Drainage System Prevents Radon Gas Infiltration
Throughout Ireland, radon gas is a genuine concern. Radon is a radioactive gas that can seep into your home through the ground, especially in areas with high radon levels. The Cavity Drainage System not only keeps your building dry but also prevents radon gas infiltration. This is achieved by maintaining a slight underfloor depressurization, which prevents radon from entering your living space.
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Can an existing building be retrofitted with a radon barrier?Yes, existing structures can be retrofitted with a radon barrier, although the process can be more complex and costly than during new construction.
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How is a methane barrier installed in a building?Methane barriers are typically installed during construction. They consist of a membrane or venting system that prevents methane gas from seeping into the building.
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Is structural waterproofing necessary for my property?Yes buildings with basements, lift shafts and retaining walls need to be waterproofed
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How is airtightness achieved in a building?Airtightness is achieved through sealing gaps, using airtight materials, and proper insulation. It requires careful planning during construction or renovation.