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The Visqueen Gas Venting System, including the Visqueen Gas Vent Mat is designed to create a 25mm deep void beneath reinforced concrete ground floor slabs.
Hazardous ground gases or volatile organic compounds (VOCs) are collected within the void and dispersed to atmosphere via a designed arrangement of Visqueen connectors and venting components, collectively managing and effectively diluting the collected gases.
Where high gas concentrations have been recorded the vent mat can be laid in a blanket format with the individual mats being butted together. Where the gas concentrations are low or where pressure relief is required the vent mat can be laid in a strip format with the mat being laid at predetermined spacings.
The Visqueen Gas Vent Mat is a protective layer installed to facilitate the safe venting of harmful gases from the ground. It helps create a pathway for gases to escape, preventing accumulation beneath buildings or paved areas.
A gas vent mat should be used in areas with potential ground gas emissions, such as former landfill sites, brownfield developments, and contaminated land. It is essential when constructing buildings or structures in these locations to ensure safety and compliance with regulations.
The gas venting system is designed to mitigate risks from various harmful gases, including methane, carbon dioxide, radon, and volatile organic compounds (VOCs), which can pose health risks and environmental concerns.
The system includes perforated pipes that allow gases to escape from the ground, coupled with the gas vent mat that ensures proper airflow while preventing moisture ingress. Together, they create an effective gas management solution.
The Visqueen Gas Vent Mat is made from durable materials designed to withstand environmental conditions, typically lasting for the lifetime of the structure it supports, provided it is installed correctly.
