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How to Build a Radon Resistant Home


Quiz Questions

1.Radon is a colorless, odorless gas that can cause lung cancer.
True
False
2. Uranium is present in rocks such as granite, shale, phosphate and pitchblende. Uranium breaks down to radium, which then decays into radon. This gas can easily move up through soil into the atmosphere.
True
False
3. At what level EPA recommends taking action to reduce indoor radon levels at your home?
4 P Ci/L
6 P Ci/L
8 P Ci/L
4.Regardless of what type of foundation, radon can still get sucked into your house.
True
False
5.The schematics of the house on page 21 of this PDF document ( page 19 of the actual document) shows the radon- resistant features of a house.
True
False
6.A soil test for radon before building a house does not guarantee, the house will be radon free.
True
False
7.When installing a sub-slab radon reduction system, it is much more cost effective to run the vent pipe through the house during the construction rather than after the walls have been closed up.
True
False
8.In order to prevent radon from re-entering the house, the vent pipe exhaust should be:
A minimum of 12 inches above the surface of the roof.
A minimum of 10 feet away from any windows or other openings in the building.
A minimum of 10 feet away from any windows or other openings in adjoining or adjacent buildings.
All of the above.
9.Foundation walls and slabs should be constructed to reduce potential radon entry routes. In general, openings in walls and slabs should be minimized, and necessary openings and joints should be sealed.
True
False
10.The riser can be located anywhere in the crawlspace. It does not need to be in the center.
True
False
11.In Appendix A, page 73 of the actual document, The architectural drawing is for a :
Passive sub-slab depressurization system
Passive sub-membrane depressurization system
Active sub-slab depressurization system