Basement water drainage system

Abstract

A two-piece ground water drainage conduit system for interior subterranean walls supported on a footing with a concrete floor having a peripheral edge supported on the footing. The conduit system includes a vertical wall portion that horizontally extends for disposition between the wall and the floor. This vertical wall portion is provided with a rear surface that has spacer protrusions for engagement with the wall to provide a narrow drainage passage therebetween and the vertical wall portion is dimensioned for extension above the floor. The second piece of the system consists of an independent horizontal conduit portion which is positioned adjacent and along the vertical wall portion under the floor periphery and the drain is provided with apertures therealong for admitting ground water from the vertical wall portion narrow drainage passage and from elsewhere. A layer of insulation is applied to the upper exterior surface of the horizontal conduit portion for disposition between the conduit portion and the floor whereby condensation is prevented from forming on the peripheral edges of the floor.

Description

BACKGROUND OF THE INVENTION [0001] The present invention relates to improvements in basement water drainage systems for receiving and channeling ground water from beneath the floor of basement rooms. [0002] Ground water seeps into basements from the walls and from joints at the perimeter of the floor. The present invention relates to improvements in sub-floor drain conduit systems of the type disclosed in U.S. Pat. No. 5,505,044. This patent discloses a sub-floor basement water control system which includes an elongate water receiving conduit designed to be installed at the wall and footing interface, beneath a peripheral area of the basement floor. The conduit is open to receive water admitted through bore holes in a concrete block wall and from the joint between the wall and the footing. The conduit also receives water which passes through openings on the inside surface of the wall, such as cracks, holes and the porosity of the masonry wall itself whereby the conduit can move the ...

AI Technical Summary

Benefits of technology

[0006] The second piece of the drainage conduit system of the present invention is provided in the form of an independent horizontal elongate conduit portion for positioning adjacent to and along the previously described vertical wall portion. This elongate conduit portion is embedded under the peripheral edge of the floor and is provided with apertures therealong for admitting ground water from the narrow drainage passage of vertical wall portion and from elsewhere. A layer of insulation is provided on the upper exterior surface of the conduit portion for disposition between the conduit portion and the floor whereby condensation is prevented from forming on the floor.

[0009] A layer of insulation is provided on the upper exterior surface of the horizontal conduit portion and it is preferably adhered to the upper exterior surface of the conduit portion prior to installation. The insulation prevents the formation of condensation on the floor perimeter which covers the drain, an also strengthens the conduit portion for resisting collapse.

[0011] Also, being manufactured in two independent pieces, not only can the sizes of the vertical wall portion be varied, but the separate manufacture of the two pieces tends to provide a less expensive and less complicated extrusion than the integral system of the prior art.

Problems solved by technology

While this prior art system is effective it has shortcomings in that it is relatively expensive to manufacture and is not readily adjustable or adaptable to varying construction conditions.

In addition, it does not prevent the occurrence of condensation on the peripheral edges of the cement floor.

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