Radon and moisture barrier for buildings
AssigneeAdvanced Building Products, Inc.
InventorKeith A. Lolley
Life of this patent
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Abstract
A radon gas and/or moisture abatement system (or method) is located under the concrete slab of a building. The system (or method) includes a multilayered mat having a first layer, a second layer, and a third layer sandwiched between the first layer and the second layer. The first layer is non-permeable and faces the concrete slab. The third (or sandwiched) layer is an entangled net. The second layer is permeable layer. The layers are bonded together. Whereby radon gas and/or moisture are inhibited from entering the building by passing through and collecting in the multilayer product.
Claims14
A radon gas and moisture abatement system located under a concrete slab of a building comprises:
- a multilayered mat having a first layer, a second layer, and a third layer, the second layer being sandwiched between the first layer and the third layer, the first layer is non-permeable to transmission of radon gas and moisture and faces a bottom surface of the concrete slab, the second layer is an entangled net consisting of thermoplastic fibers creating an open solid with interstitial spaces between the thermoplastic fibers, and the third layer is permeable to the transmission of radon gas and moisture, the layers are bonded together to form a unitary structure,
- a rigid foam product located between or below the concrete slab and the multilayered mat,
- wherein said radon gas and moisture are inhibited from entering the building by passing through and collecting in the multilayered mat.
A method of abating radon gas and moisture intrusion into a building comprises the steps of:
- placing a multilayered mat below a concrete slab of the building, the mat having a first layer, a second layer, and a third layer, the second layer being sandwiched between the first layer and the third layer, the first layer is non-permeable to transmission of radon gas and moisture and faces a bottom surface of the concrete slab, the second layer is an entangled net consisting of thermoplastic fibers creating an open solid with interstitial spaces between the thermoplastic fibers, and the third layer is permeable to the transmission of radon gas and moisture, the layers are bonded together to form a unitary structure,
- placing a rigid foam product between or below the concrete slab and the multilayered mat,
- wherein said radon gas and moisture are inhibited from entering the building by passing through and collecting in the multilayered mat.
Dependencies are inferred from the claim text.