JUSTINE L.
PALASIGUE
BSAR 2ND YEAR BLOCK B
The most frequent and destructive natural disaster in the
world is flooding. It is a threat to the environment that endangers
human life, destroys infrastructure, disrupts economic activity, and
depletes ecological resources. The government raises public
spending to solve this issue due to the catastrophic effects of
floods on human welfare and urban growth. However, many nations,
particularly the often struck Philippines, are creating long-term
flood management strategies that can cut costs. This occurs in the
midst of an increasing commitment to create integrated flood
management strategies that will solve flooding challenges and
lessen the negative consequences of floods on the economy,
society, and environment.
FIVE DESIGN SOLUTION FOR RAINY/FLOOD PRONE AREA IN THE PHILIPPINES
1. Raising Above Flood Level (stilts)
Stilt houses are
residences constructed on
raised platforms. They can
be constructed anywhere,
but countries with tropical
climates tend to have the
most of them. In addition to
being built on sand or dry
land, stilt houses can also
be built above water.
Raised structures don't
require any significant
foundation work or
excavations.
Each house has wide vistas to
the south, trellises, and windows to
balance the requirement for open
spaces with the need for privacy,
thanks to the elevation of the
prefab stilt dwellings and the
natural height disparities. The most
typical justification for
constructing a stilt house is to
avoid flooding or pests. After
installing all required posts, a
base is constructed by stacking
deck boards on top of the posts
to add additional support.
2. Use flood-resistant
construction materials
Materials that are
flood resistant can be
exposed to floodwaters
for at least 72 hours
without suffering serious
harm. Both hydrostatic
(standing water) and
hydrodynamic (moving
water) floods can cause
shifted foundation walls,
collapsed buildings,
floating fuel tanks,
scouring, and other
problems. Any damage
requiring more labor
than simple cleaning or
inexpensive aesthetic
repairs, such painting, is
referred to as
"significant damage."
Flood resistant materials
must be strong and
resistant to high humidity
in order to stop these damages. Concrete, glazed brick, closed-
cell and foam insulation, steel fasteners, pressure-treated and
marine-grade plywood, ceramic tile, water-resistant glue,
polyester epoxy paint, and other materials are examples
3. Consider installing a sump pump or foundation vent
Installing foundation
vents is an example of
wet floodproofing since
it allows floodwater to
pass through the house
rather than collect
around it. This idea may
seem paradoxical given
the potential harm it
could cause to the
interior of the building,
but it actually gives
flood water somewhere
to go and reduces the
harmful pressure it
exerts on the walls and
windows.
The damage can be minimized if the interior, which is typically a
subgrade basement, is prepared with flood damage resistant
materials, hydrostatic apertures, and shielded important
equipment. However, post-flood cleanup will still be required. In a
similar manner, a sump pump is a sort of machinery that removes
water from basements where flooding frequently occurs.
In a basement waterproofing and flood protection system, the
sump pump is undoubtedly the most crucial element. In the event that
your basement floods for any reason, you can use the sump pump
to pump water outside your building. Sump pumps are often
automated.
4. Build Long-Term flood Barriers
Flood waters won't be able to get to the structure in question
if a permanent barrier is put up around it. Such barriers should be
built utilizing a levee comprised of compacted layers of soil with
an impermeable core or a floodwall made of concrete or
masonry. Although this option may seem the simplest or most
straightforward, levees require a substantial quantity of land and
useable soil supplies for construction, and both floodwalls and
levees require intensive upkeep.
Although time and labor are needed for deployment,
temporary flood barriers are effective. It may be more
economical in the long run to create a permanent, in-situ flood
barrier, depending on the site's characteristics and the frequency
of floods. There are a variety of passive, recessed into a site,
permanent flood barrier
alternatives available that
don't need to be deployed.
Flood barriers may
occasionally rise from a recess
until they are completely erect
and automatically close off the
area around them due to
hydrostatic pressure from
increasing floodwaters. Before
deployment, some products
(such as Aquafragma) will send
out warnings. When compared to
temporary barriers, other
permanent obstacles often
require human interaction but
can be set up more quickly.
5. Install waterproof veneer and apply coatings and sealants.
Floodproofing comes in two varieties: dry and wet. Wet
floodproofing allows floodwaters to enter the house, whereas dry
floodproofing keeps floodwaters out. The former category
includes waterproof veneer, coatings, and sealants because they
keep water from penetrating the interior. A brick veneer
supported by a waterproof membrane can serve as a waterproof
veneer to prevent water from penetrating the outside walls. In
places below the flood level, architects should employ washable
closed-cell foam insulation in the interior walls. To prevent flood
water from entering the home through cracks, coatings and
sealants may also be placed to the foundation, walls, windows, and
entrances. This is because these openings are rarely made to be
watertight or able to withstand flood loads.
