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Category Archives: Radon Mitigation
Radon Proof Sump Cover
When we demoed the slab floor we saw that drain pipes were connected from the outside perimeter foundation of the house into the sump tank. We seldom saw water in the sump tank so we were not sure the system … Continue reading
Posted in Moisture Intrusion/Expansive Soil, Radon Mitigation
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Boxing in the Radon Vent
Another pre-drywall project that I forgot to list was to box in the radon vent that entered the attic shelf over the storage closet. The vent has a slant to it that meant the lower part was uneven with the … Continue reading
Posted in Construction, Radon Mitigation
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Radon Sealing
There is a lot of attention to detail that has to be paid during the construction. One requirement of the radon mitigation is to caulk all the penetrations through the slab. Since our water lines and drains do penetrate the … Continue reading
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Completed Crawlspace!
I finished the crawlspace today and replaced all the old pipe insulation with 1″ thick K-Flex R-7 insulation from Supply House. This insulation is a Greenguard certified product for its low VOC and mold resistance. There is over $275 of … Continue reading
Posted in Air Intrusion/Thermal Envelope, Construction, Energy Efficiency, Radon Mitigation
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Crawlspace Radon Piping
Another thing I am rethinking is the piping that the radon mitigation calls for under the vapor barrier. I stuck a pipe under the vinyl, measuring for connection to the vent pipe and it looked kind of ridiculous. A short … Continue reading
Posted in Air Intrusion/Thermal Envelope, Construction, Radon Mitigation
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Crawlspace “After”
The conditioned crawlspace is almost complete. The vinyl tarps/billboards are sealed to the walls with caulk. The low VOC Loctite PL375 is inexpensive and easy to work with. It is both a construction adhesive and gap filling caulk and washes … Continue reading
Posted in Air Intrusion/Thermal Envelope, Local Products, Radon Mitigation
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Crawlspace Conditioning
We had the initial energy audit done in March of 2012. One of the recommendations in the audit was to condition the crawlspace. “Your crawlspace can cause major air quality and energy issues in your home. The vents in this … Continue reading
Posted in Air Intrusion/Thermal Envelope, Construction, Radon Mitigation
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Slab Radon Pipe Connection
We finished tying in one of the slab radon pipes to the crawlspace radon fan today. There were several days of cutting pipes and several days of procrastinating since the pipe is heavy and the cuts are trouble and the … Continue reading
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Fan (tas) tech Radon Fan
In the quest to finish the thermal barrier, I need to go under the house into the crawlspace and lay out a vinyl radon barrier on the ground and seal it to the walls. Working under the house usually means … Continue reading
Posted in Radon Mitigation
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Slab Edge Continued
The slab edge had to be sealed against radon. I had decided to use roofing tape (Eternabond Webseal) and after returning to see that the Sanitred had pulled away from the edges of the cement, it was an even more … Continue reading
Posted in Construction, House Systems, Radon Mitigation
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Radon Report
I picked up a Radon test while browsing in Home Depot. Just thinking that it might be good to see what the concentration was before I bought expensive radon vent fans and sealed up the sump hole. I followed the … Continue reading
Posted in Construction, House Systems, Radon Mitigation
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Radon Mitigation
Zone 1 has the highest concentration of Radon in the ground. Radon has been found to be a naturally occurring cancer causing element that is concentrated in homes that have direct contact with the earth especially in Level 1 (Red) … Continue reading
Posted in House Systems, LEED Project, Planning, Radon Mitigation
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