Jan 31, 2020 · Learn more about installing radon soil gas mat in new costruction homes. Soil gas mat is an alternative to 4-inchs of clean gravel under the concrete floor.

Jan 28, 2010 · Construction workers in open-air excavation or trenching worksites are not likely to be exposed to radon radiation above the permissible exposure limit, but workers in an …

Dec 28, 2009 · As the EPA radon fact sheet you provided points out, exposure to radon and its decay products increases the risk of lung cancer. OSHA's Ionizing Radiation standards (29 …

The recommended french drain procedure is to place a dimpled plastic membrane about 6″ up the wall, and spanning across the footing into the trench to allow water from 1/2″ wall weep holes …

Sep 3, 2024 · By building radon-resistant new homes, builders and contractors help reduce buyers’ risk of lung cancer from exposure to radon in indoor air.

BAM’s research indicates that the most cost-effective method to build a passive radon system includes a gas-permeable layer consisting of a 4 inch code-compliant sand base layer and an …

TrenchLock™ is an insert that can be installed in an existing trench drain that lets water down but does not allow air to come up through an innovative patent-pending design. Ideal for homes …

Jul 11, 2015 · The two systems you describe—an interior drainage system designed to collect liquid water and a radon-mitigation system designed to collect and remove radon gas—aren’t …

Radon can enter a new extension or conservatory by a number of routes, with the result that radon levels may also increase inside the existing house. This leaflet describes how to …

With PDS’ proprietary geotextile drainage matting a.k.a. soil gas collector mat (SGC) sometimes referred to as “vapor mat”, contractors, builders, mitigators, and, most importantly, …