Engineered materials

Ground Protection Barriers

- radon, methane and gas blockers Walki offers fully certified radon and methane barriers to prevent all these dangerous gases from entering your homes and work places. These products are highly durable and are built to last a lifetime. The barriers are strong and elastic and thus can be used on different kinds of foundations, from rocky to other forms. Walki®Methane Tight Walki®Methane Tight is a scrim reinforced, flexible construction membrane with excellent barrier properties against radon, methane and other gases, as well as barrier to water vapour thanks to the aluminium/double polymer layers. Material is designed to be used especially in the groundwork phase. It is easy to install thanks to the flexible and durable material composition. Walki®Radon Block Walki®Radon Block is a flexible construction membrane with excellent barrier properties against radon gas and water vapour. Material is designed to be used especially in the groundwork phase. Walki®Radon Block is an elastic and scrim reinforced polymer coating. It is installed during the groundwork phase, on top of soil directly beneath the building, to prevent the rise of radon. Walki®Radon Block is highly resistant to different temperatures and temperature changes. Walki®Gas Block Walki®Gas Block is a flexible construction membrane for basic gas and water vapour protection, especially in the groundwork phase. It is easy to install and provides a high Sd value.