Radon Basement Venting

A 3 pvc pipe is the minimum permitted.

Radon basement venting.

Why must radon be vented into the air above my home s roof. Current radon level long term test if possible building type slab on grade. Radon fits the classic pattern for sneaky building dangers. As noted earlier radon is drawn into your house when the air pressure in the basement or lowest level is less than the air pressure in the surrounding soil.

Radon gas is approximately 7 5 times heavier than air. Use 40 dwv for strength. Steps for installing radon mitigation radon test kits are readily available online and in home centers. Maintain a proper slope for condensate drain back.

The top of the vent is angled at 45 degrees to the moist air does not cause moisture damage or mildew stains on the siding. Keep it further away if you can but there is enough dilution of air over just a few feet to prevent any noticeable amount of radon from re entering the home. The location of radon exhaust vents can follow the building code requirements for venting combustion appliances which is to keep them 3 feet from operable windows. Mixed how many sq ft of each type it is for this reason that it s impossible to size a radon fan before the building is completed and a radon level has been established.

Radon is a radioactive gas and known to be a carcinogen. Check out some basic requirements for running a radon vent pipe. They found radiation levels in the watras home more than 100 000 times the normal background level. Radon can work its way up through the floors and walls of a basement.

Therefore it is imperative that any ventilation system does not further reduce the air pressure within your house and increase this pull. It is however a noble gas with no chemical affinity but is easily influenced by air movements and pressure. Tri level or garden level. Install an electrical junction box outlet in the attic for use with a vent fan should after testing for radon a more robust system be needed.

It s not a problem everywhere but the bedrock in some regions produces enough radon for it to concentrate on basements enough to raise the risk of lung cancer. In a house with forced air heating and cooling radon gas can easily be distributed throughout the entire dwelling. Apparently the house was located over a natural radon vent pumping massive amounts of radon into the watras basement. In this photo to the left you can see a radon vent pipe that terminates safely about 13 feet above the ground and greater than 10 feet horizontal and 2 feet above the closest window.

The second step is to repair the basement to reduce the amount of radon toxins that enter into it.