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Water Damage Fix-up to the Pros Copyright Carl Brahe - Inspection Perfection Inc. www.inspection-perfection.com 2005 all rights reserved. Should
you ever be unfortunate enough to have to deal with a major water
leak In your home, you know the value of quick action to get things
dried up and cleaned out before the water can do additional damage.
But after you've done what you can to get things started and you've
called in a restoration contractor, what kinds of tools do the pros
use to dry out your house?
As with many aspects of construction and remodeling, damage restoration
has become very specialized in the last decade or so. And with that specialization
has come a whole new generation of tools and equipment designed specifically
for drying homes. Done correctly, this type of restorative drying, can
save thousands of dollars in structural damage and, most importantly,
get your house and life back together quickly. Air
movement:
One of the most important weapons that restoration contractors use for
drying is air movement. This air - focused, moving a very high speed,
and without any heat that might cause secondary damage to fragile contents
- safely evaporates the water to dry surfaces quickly.
The primary tool for this drying is the high-velocity air mover. An air
mover utilizes a high-speed motor to drive a fan with a series of horizontal
fins, producing, a very large volume of fast moving air that exits through
a wide "snout" at the front of the unit. These air movers can
be placed on floors and under wet carpets. Their adjustable speed motors
can move the desired volume of air exactly where it's needed.
For areas where, air mover use is impractical, under cabinets, in crawl
spaces and, other such confined spaces - special fittings can be adapted
to the snout of the unit to allow for the attachment of one or more flexible
ducts. These four-inch diameter ducts can then be placed just about anywhere
to direct the airflow exactly where it's needed.
One particularly effective use of these ducts is for the drying of wall
cavities. First, a series of holes are drilled low on the wall, and then
a special" wall boot" is attached to cover the holes. An air
duct from the air mover is then attached to the boot, and high-speed
air is directed up into the concealed cavities, allowing for the drying
of drywall, insulation and wall framing that used to be considered inaccessible
without major demolition work. Dehumidifiers:
Once the moisture is released out into the air, it needs to be removed
quickly before it can circulate and do additional damage somewhere
else. For this task, the pros utilize high-capacity dehumidifiers.
The most common type is a refrigerant dehumidifier, which works on the
same principles as a refrigerator or air conditioner. By compressing
and passing refrigerant through a series of coils, the coils become colder
than the surrounding air. The moisture in the air will always move toward
a colder surface, and will condense on these coils and freeze, safely
and effectively removing it from the air. At pre-timed intervals the
coils switch into a defrost cycle, the frozen condensation is melted
off and flows into a catch basin, and a pump pushes it through a flexible
hose to a drain location such as a sink or toilet.
Another type of dehumidifier is the desiccant, which utilizes the same
moisture absorbing desiccant crystals you find in those little packets
packed in with new electronic components - although on a much larger
scale.
Basically, moist air is drawn into the unit, where a rotating plate of
desiccant crystals removes the moisture from the air stream. The moisture
is exhausted to the outside of the house through a hose, while the dry
air is allowed to reenter the room. Hoses can also be used to direct
this flow of dry, slightly warm air to wherever it is needed.
Desiccant dehumidifiers work a little slower than refrigerants, but will
dry things down to a lower moisture level. They are especially effective
in drying items that normally have low moisture content, including hardwood
floors, cabinets and books and other paperwork. Mold
cleanup:
Under the right conditions, wet structures and contents can be a perfect
breeding ground for mold spores. When mold is present, the restoration
contractor has a couple of additional tools in the arsenal for safely
and effectively removing it.
For many hard surfaces, including everything from framing and drywall
to furniture, the HEPA (High Efficiency Particulate Air) vacuum can be
used to remove mold spores. Spores are measured in microns one micron
is approximately 1/25,OOO of an inch and HEPA equipment is, by definition,
capable of filtering out 99.97 percent of all particle matter and mist
larger than 0.3 microns. Since the mold spores in a water damage situation
typically range in the 2 to 20 micron range. HEPA equipment is very effective
in their removal.
Another tool is the air scrubber, which is essentially a portable, high-speed
recirculation fan. |