You can fix a radon problem.

(Called: reduction, correction, mitigation, remediation, etc.)

SOIL SUCTION - FAN SYSTEMS (Sub-Slab Depressurization, etc.)

EXPECTED RESULTS...... Our experience in over 6,000 installations agrees with EPA studies. Reductions are typically 80-99% (often to about 1-2 pCi/l). Effectiveness is expected for as long as the system operates. Guarantee periods provide a reasonable time for assurance of quality and reliability.

TYPICAL SYSTEM DESIGNS:

Click for photo samples

Costs to operate are extremely low and checking that the fan is running is about the only maintenance. Radon tests each two years are advised by EPA.

(Sealing of primary cracks and openings to soil.)

EXPECTED RESULTS...... sealing alone is unpredictable and can never be guaranteed. (Sealing is usually required as part of Soil Suction - Fan Systems).

"EPA does not recommend the use of sealing alone to reduce radon because, by itself, sealing has not been shown to lower radon levels significantly or consistently."

..... "At risk expenses" are always wagered when sealing only (i.e. additional tests) and there is a limit to the practicality of sealing efforts. A substantial leakage area will still exist (invisible to the eye) regardless of meticulous efforts.

..... Sealing alone may sometimes reduce levels by about half if all openings and primary cracks are accessible to seal. However, little or no effect may be seen and levels can even go up. Chances are severely reduced by;

• Initial radon levels above about 6-7 pCi/L.
• Inaccessible items-areas which can't be sealed.
• Meager efforts. (Poorly advised or... "a price too good to be true")