Moisture travels through soils, beneath basement floor levels, and migrates into the air releasing soil gases. These gases accumulate or concentrate when captured; particularly in poorly ventilated buildings. Radon is classed as a chemically inert, noble gas and is of the same family as helium, ...
This limits air infiltration and keeps moisture (and possibly airborne mold or radon gas if present) out of the living space. If the basement is finished and heated, it is usually sealed at its walls, not at the floor above. Stack effects and convective loops chill the building's interior ...
radonRADON HAZARD TESTS & MITIGATION, and combustion gases. If you have reason to believe that these or other pollutants may be trouble, exercise caution. Pay attention to potential problems such as an attached garage, basement workshop, or photographic darkroom, and attend to un-vented kerosene...
Builders Seek to Prevent Radon Problems; Firms Are Installing Ventilation Systems, Sealing BasementsSam Hankin
Impervious asphalt layer and edge sealing system - covers floor of basement to prevent radon gas leaking from ground into houseThe system protects the interior of a building against the inflow of radon gas escaping from the ground. The simplest system incorporates a foundation layer (1) under ...
Impervious asphalt layer and edge sealing system - covers floor of basement to prevent radon gas leaking from ground into houseThe system protects the interior of a building against the inflow of radon gas escaping from the ground. The simplest system incorporates a foundation layer (1) under ...