We often ignore few important things in our daily life and
think these are only for Professionals. Like water proofing. Many of us in our
lifetimes find opportunity to build our own houses, industry or office but few
of us know the importance of water proofing and result is obvious. We come
across issues like seepage and it redo things which cost more money, time and
causes lot of irritation.
Water proofing is very simple term;
Waterproofing is the process of making
an object or structure waterproof or water-resistant, so that it remains
relatively unaffected by water or resisting the ingress of water under
specified conditions. Such items may be used in wet environments or under water to specified
depths.
There are some common types of waterproofing methods used in
construction industry.
Waterproofing in buildings / structures are generally
required for:
·
Basement
of structure
·
Walls
·
Bathrooms
and kitchen
·
Balconies,
decks
·
Terrace
or roofs
·
Green
roofs
·
Water
tanks
·
Swimming
pools
The following waterproofing methods are commonly used in
construction:
·
Cementations
Waterproofing
·
Liquid
Waterproofing Membrane
·
Bituminous
Membrane
·
Bituminous
Coating
·
Polyurethane
Liquid Membrane
Applications of Cementations Waterproofing:
Cementations waterproofing is used in
the following type of structures:
·
Water
Treatment Plants
·
Sewage
Treatment Plants
·
Bridges
·
Dams
·
Railway
& Subway Systems
·
Marine
Cargo Ports & Docks
·
River
Locks/Channels & Concrete Dykes
·
Parking
Structures & Lots
·
Tunnels
Liquid Waterproofing Membrane Method:
Liquid membrane is a thin coating
which consists of usually a primer coat and two coats of top coats which are
applied by spray, roller, or trowel. It offers more flexibility than the cementations
types of waterproofing. The liquid cures into a rubbery coating on the wall.
The elongation properties of the coating can reach as high as 280%. The
durability of the waterproofing coating depends on what type of polymer the
manufacturer use for the making of the liquid waterproofing.
Liquid waterproofing membrane can be
of spray-applied liquid membrane composed of polymer-modified asphalt.
Polyurethane liquid membranes in separate grades for trowel, roller, or spray
are also available from various manufacturers.
Bituminous Coating Waterproofing Method:
Bituminous coating is a type of
coating used for waterproofing and flexible protective coat in accordance with
its formulation and polymerization grade. Its flexibility and protection
against water can be influenced by the polymer grade as well as reinforcement
of fiber.
Bituminous coating is also called as
asphalt coating. The most common applications of bituminous coatings include
areas that are beneath screed wet. It is an excellent protective coating and
waterproofing agent, especially on surfaces such as concrete foundations.
Bituminous coating is made of bitumen based materials and it is not suitable
for expose to sunlight. It becomes very brittle and fragile when long exposure
to the sunlight unless it is modified with more flexible material such as
polyurethane or acrylic based polymers. The flexibility of the finished
products always depends on the solid content of the polymer added to the
bitumen.
Bituminous Membrane Waterproofing Method:
Bituminous membrane waterproofing is
a popular method used for low-sloped roofs due to their proven performance.
Bituminous waterproofing membrane have torch on membrane and self-adhesive
membrane.
Self-adhesive compounds comprise
asphalt, polymers and filler; additionally, certain resins and oils may be
added to improve adhesion characteristics. The self-adhesive type has low shelf
life as bonding properties of the membrane reduces with time.
Torch on membrane have exposed and
covered types. Exposed membrane often has mineral granular aggregate to
withstand the wear and tear of the weathering and the other types of membrane,
contractor need to apply one protective screed to prevent the puncture of the
membrane.
Bituminous Membrane Waterproofing Method:
Polyurethane Liquid Membrane
Waterproofing Method:
Polyurethane liquid membrane method
of waterproofing is used for the flat roof area and exposed to weathering. This
waterproofing method is expensive.
Polyurethane Liquid Membrane
Waterproofing Method
Polyurethane Liquid Membrane can offer higher flexibility.
Polyurethane is very sensitive to moisture content present, therefore before
application, one has to be very careful evaluating the moisture content of the
concrete slab, otherwise peeling or de-bonding of membranes may happen after
some time.
For more details and information about Water Proofing in
Karachi You may contact BuildingComforts.com.
BuildingComforts.comis one the most reliable Waterproofing
Company in Karachi
Founder CEO of PNTGlobal.com,
Business Consultant and Digital Marketer. He gathered this information on
behalf of BuildingComforts.