raid on invisible radioactive USA second
leading cause of lung cancer gas comes
from the earth most American homes have
negative basement lower floor pressure
due to HVAC cold air return duct leakage
supply duct leakage in crawl spaces and
attics house tack effects because light
warm air rises moist air effect because
light moist air rises exhaust fans
basement fan contraptions that suck air
out of your home that waterproof or cell
whoo that's warm dryers fireplaces that
suck air out of homes appliances that
have power exhaust vents and attic
access panels that are not sealed
permitting thermal bypass or the escape
of conditioned indoor air these
conditions permit radon to be sucked out
of the ground and cracks holes sumps
crawls slabs penetrations and joints you
want a slightly positive lower level
pressure minimizing the sucking of radon
gas check your lower levels with a
pressure gauge smoke or even toilet
paper to see if negative pressure or
depressurization exists you may need to
seal cold air returns seal sub pumps
keep house fans off when not in use
seal attic access panels seal ductwork
in attics and crawls keep interior doors
open run a basement dehumidifier
condition crawlspace is properly with
proper 100% floor vapor barriers
installed tribute balloons and chimneys
that are not being used and finally open
lower level HVAC supply register grills
to blow furnace conditioned air to
slightly pressurize your lower levels if
your basement blows it cannot suck radon
you can test this yourself or have your
home tested and countertops granted by a
certified licensed home inspector if you
have radon you need to call a mitigation
reduction removal expert to test
evaluate and repair or install a sub
below slab depressurization system
mitigation system or reduction radon
system please visit my website for more
information please rate subscribe and
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