| 摘要 |
<p>A permanent form-drain network (10) adapted for radon remediation. A permanently installed form-drain system (10) is partially piecewise modified and adapted to collect and remove radon gas from sub-slab (44), 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 (20) 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 (42).</p> |
