Means for venting radon gas from crawl spaces

• US 20090183444A1
• Filed: 01/22/2008
• Published: 07/23/2009
• Est. Priority Date: 01/22/2008
• Status: Abandoned Application

• Current Assignee: Louis F. Cole, Timothy Wilkerson
• Original Assignee: Louis F. Cole, Timothy Wilkerson
• Inventors: Cole, Louis F., Wilkerson, Timothy
• Application Number:
  US12/009,795
• Publication Number:
  US 20090183444A1
• Time in Patent Office: Days
• US Class Current: 52/169.500
• CPC Class Codes: E02D 31/008 against entry of noxious gases, e.g. Radon

Abstract

The disclosed inventive system vents Radon gas from a building crawl space disposed below ground level floor, where such gas can enter via a dirt floor or the like. An impervious sheet is spread over the floor and up the adjacent foundation walls, and is sealed to the wall near its top, thereby isolating Radon gas from the crawl space. A thin porous mat extends to the wall spread between the floor and sheet operable to direct the collected Radon gas to the wall. A perforated pipe encircles the crawl space and overlies the mat at the wall, and is vented by a solid wall pipe to the outside atmosphere, thereby effectively removing the Radon gas from the crawl space.

Claims

1. A system for venting a building enclosure having a below ground level floor through which Radon gas can enter and accumulate to harmful concentrations and at least one wall upstanding from the floor, comprising

an impervious sheet spread over the floor and wall and separating such from the enclosure interior for collecting the entering Radon gas;

means for providing a porous path between the sealing sheet and the floor for directing the collected Radon gas to the wall; and

means at the wall for discharging such collected gas from the building enclosure to the outside atmosphere.

2. A building venting system according to claim 1 system for venting a building enclosure system for venting a building enclosure system for venting a building enclosure according to claim 1, further including said porous path means being a fiber mat sandwiched between the floor and sealing sheet.

3. A building venting system according to claim 2, further including said discharging means being a perforated pipe encircling said floor adjacent the walls.

4. A building venting system according to claim 3, further including said discharging means being a solid wall pipe connected off of the perforated pipe and extended from the building enclosure to the outside atmosphere.

5. A system for venting a building enclosure having a below ground level floor through which Radon gas can enter and accumulate to harmful concentrations and at least one wall upstanding from the floor, comprising

an impervious sheet spread over the floor and wall and separating such from the enclosure interior for collecting the entering Radon gas;

a thin porous mat spread over the floor and under the sheet and extended to proximity of the wall for providing a path for directing the collected Radon gas to the wall;

a perforated pipe lying on top of the mat and running on the floor at the wall for receiving Radon gas from the mat; and

a solid wall pipe connected off of the perforated pipe and angled to project away from the floor for discharging such collected gas from the building enclosure to the outside atmosphere via a hole in the wall.

6. In a building enclosure having a below ground level floor and a wall upstanding from the floor to extend above the ground lever, comprising an impervious sheet spread over the floor substantially to the wall, and folded approximately 90 degrees then to extend upwardly adjacent the wall;

and a double sided adhesive strip interposed between the sheet and wall operable to seal one side face of the sheet near its top edge to the wall.