Poolroom
moisture is similar to boiling
pot of boiling water on a stove. When
the water is boiling, look at where
the “steam” or “condensation” is
going. It rises up into the air.
The warm moist air in a poolroom
rises and stratifies or lies along
the ceiling and wall areas.
If not
addressed properly, this moisture starts
to pressurize or penetrate the surface
of drywall, wood, etc. and begins to
deteriorate these materials. This moisture
can also migrate past the surface area
into insulation and the structure itself.
If vapor barriers have been compromised
in this area, (i.e. top hat, recessed
can lighting creating holes in vapor
barriers), moisture can and will migrate
up into these areas.)
To
properly move air to prevent stratification,
the proper ducting system, cfm, air
turnovers and a high return air duct
is designed into the air delivery
system to pull the moisture off the
ceiling area and back to the dehumidifier.
Returns are NOT LOCATED AT THE POOL
DECK LEVEL. If ceilings are extremely
high, ceiling fans IN REVERSE or
BLOWING UP can also be recommended
for moving air and breaking up the
stratification at the ceiling level.
If installing ductwork is not feasible
to reach skylights (again, remember,
air flow across all glass and other
surfaces to prevent the glass & surfaces
from reaching Dew Point Temperature
is recommended;; ceiling fans can
also be utilized to move air up into
skylights. This will ensure so that
that they do not condense when the
outside temperature is colder than
the inside temperature.
NOTE: NATIONAL
ELECTRIC CODE STIPULATES THAT ANY
ELECTRICAL DEVICE (INCLUDING CEILING
FANS) MUST BE A MINIMUM OF 7 FEET
ABOVE THE POOL SURFACE AREA
EPS is the home of DRY-AIR & VERI-DRY. We provide Design, Engineering, Consulting and Manufacturing for Residential and Commercial Indoor Swimming Pool Applications.
