Passive Radon Control Feature Effectiveness in New House Construction in SouthCentral Florida

摘要

The paper discusses passive radon control feature effectiveness in new houseconstruction in South Central Florida. The study was conducted to evaluate the effectiveness of two slab types (monolithic and slab-in-stem wall) in retarding radon entry in new houses built in accordance with the proposed standard over high radon potential soils. The slab-in-stem calls exhibited significantly more slab cracking than did the monolithic slabs. Those houses also had higher average radon entry rates, radon entry velocities, and concentration ratios than the monolithic slab houses. Both slab types proved to be effective in retarding radon entry, especially when penetrations were properly sealed.