Radon Mitigation System Outside Installation |
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SUB-SLAB DEPRESSUIZATION: Suction created in a pit excavated under the slab.
DRAIN TILE DEPRESSURIZATION: Suction created in or next to drain tile - extends under the floor via drain tile or aggregate.
SUMP DEPRESSURIZATION: Suction created in groundwater drainage sump - extends under floor via drain tile or aggregate.
BASEBOARD DEPRESSURIZATION (NOT COMMON): Suction crated in wall - floor joint and, if any, adjacent masonry wall.
SUB-MEMBRANE DEPRESSURIZATION: Suction created under a membrane such as plastic or rubber, placed on exposed soil and or rock (Crawlspace).
BLOCK WALL DEPRESSURIZATION (NOT COMMON): Suction created in concrete block wall.
SUBSLAB PRESSURIZATION: Used when sub slab is permeable. These systems will increase heating costs. The fan is used in reverse - blowing air into the sub floor. First floor air is blown into the lower level sub floor. (Not used often).
BASEMENT PRESSURIZATION: Pressurization of basement level - keeping the radon gas from entry to home. (Not often used)
SEALING THE CRACKS IN BASEMENT FLOOR: Using caulking to prevent radon from entry to basement. Also involves sealing all sump crocks.
INSTALLING A HEAT RECOVERY VENTILATORS (HRV's): Exchanging build air (outdoor/indoor air). This is done by diluting the indoor air supply with outdoor air.