Radon remediation in form-drain apparatus
AssigneeCertainTeed Corporation
InventorsChristopher J. Kliefoth, Alton F. Parker
Life of this patent
Estimating the term…
Abstract
A permanent form-drain network adapted for radon remediation. A permanently installed form-drain system is partially piecewise modified and adapted to collect and remove radon gas from sub-slab, as well as basement and similar near-subterranean, portions of building. The partial piecewise modification of an existing form-drain includes adapting existing connector elements of the form-drain with vent tubes and differently molded pieces such as offset transition conduits and "T" shaped divergent conduits. The method for installing the invention conceives of the use of a radon accretion zone gas barrier made of an impermeable membrane.
Claims12
In combination with a foraminous footing form-drain structure, an improvement for collecting and removing gaseous accretions about a footing and beneath a slab proximate said structure comprising:
- at least one structural piece of said form-drain disposed at a footing depth;
- a conduit means fixed to an upper portion of said piece and communicating with the interior thereof;
- and
- an evacuation means for providing an exhaust draft at, and in communication with, said conduit means.
A gas removal means for venting the interior of a sub-slab gas barrier-covered, hollow footing form-drain apparatus comprising:
- at least one form-drain transitional connector element having at least one duct diverging from thereout, the duct used for collecting gaseous substance from under said gas barrier;
- and
- exhaust means connected to an upper portion of, and in communication with, the interior of said element and said duct, said exhaust means comprising a pipe for the drawing therethrough of said gaseous substance.
A footing form-drain improvement for removing gas therefrom and from soil thereabout comprising in combination:
- a gas barrier immediately covering a substantial soil area, peripheral to, and further covering a portion of said form-drain;
- a piece of said form-drain having a port in an upper portion thereof communicating with the interior of the said piece;
- gaseous fluid ducting means joined to said port;
- and
- drawing means for motivating a gaseous fluid from out said ducting means.
A method for venting to atmosphere gaseous accretions within essentially subterranean portions of a building comprising:
- providing a subterranean, essentially sub-slab, foraminous hollow conduit network comprising a plurality of connected, hollow components, including discrete connectors, said network disposed in and surrounding a sub-slab gas accretion zone;
- connecting to an upper portion of at least one discrete connector of said network at least one nonforaminous conduit communicating with the interior of said discrete component;
- and
- drawing from out said nonforaminous conduit, by an exhaust-venting means, any gaseous substances therein and exhausting said substances to ambient atmosphere, thereby venting said network and said subterranean portions.
Dependencies are inferred from the claim text.