WHAT IS THE MEMBRANE
SADGURU WATER PROOFING
WHAT IS THE MEMBRANE
The purpose of waterproofing membranes is to prevent leaks from occurring on a surface. Water penetration and leakage, Waterproofing membranes serve as protective layers which can be applied either on the roof, retaining walls or basement of a structure. There are different types of waterproofing membranes which can be broadly classified AS sown in the picture explain each in detail
WHY IT IS IMPORTANT
Waterproofing
membranes are designed to protect a surface from the perils of leakage. Water
penetration and leakage, if neglected, can have disastrous consequences for a
structure. Membrane protects a building against all types of water
damage and prevents further repairs.
Excess water exposure
can enlarge the foundation cracks and joints, leading to issues with leakage,
deterioration, and spalling that will require repairs. Before water damage
leads to bigger issues in a building
Membrane Waterproofing can provide:
1. Safety: Lack of waterproofing can
severely damage a building's integrity, resulting in an unsafe environment.
2. A way to strengthen the structure: A
waterproofing membrane prolongs the lifespan of a building by preventing
moisture from intruding and causing rust, rot, corrosion, structural defects,
or other damage.
3. A healthier environment: By waterproofing a space,
you can ensure that it is well-maintained and protected from the elements As a
result of fungus and mold growth on the walls and ceilings, allergies and
health issues can develop.
4. A way to reduce maintenance costs and increase property
value: Quality waterproofing — done right the first time — will safeguard
property from water damage and limit the need for costly repairs or maintenance
services.
CLASIFICATION OF MEMBRANE
There are different types of
waterproofing membranes which can be broadly classified as sheet-based membranes and liquid-based membranes. Sheet-based
membranes are in the form of rolls whereas liquid applied waterproofing
membranes come in the form of liquid that can be sprayed on the surface.
A. SHEET BASED WATER PROOING MEMBRANE
Sheet-based membranes are in the
form of rolls. Bituminous waterproofing membrane is one of the most common
sheet-based membranes
Sheet Based Membrane further
classified in two
1. WATER PROOFING MEMBRANE
2. GEO MEMBRAEN
A. WATER PROOFING MEMBRANE
A membrane roof is a flexible or
semi-flexible roof covering material that primarily waterproofs a roof system.
It can be made of a single material or several laminated materials together.
While membrane materials can sometimes be used on residential roofing, they are
primarily used for commercial or industrial
buildings with flat- or low-slope roofs.
1. APP - ATACTIC POLYPROPYLENE.
APP membrane is the most commonly
used waterproofing material on concrete roofs and low-slope roofs. APP membrane
is applied to asphalts with a torch. Applications of APP membranes aren’t
limited to just roofs. Man made ponds, bathrooms, water tanks, curtain walls,
APP membranes are characterized by
high tensile strength
APP membranes are 100% impermeable
APP membranes are easier to apply
APP membranes are durable and
won’t succumb to changing climatic conditions
2. SBS - STYRENE BUTADIENE STYRENE
- Has
high elongation and tensile strength.
- Resistant
to aggressive effect of the soil.
- Easily
applied to the details such as dilation,
·
membranes are durable and won’t succumb to changing climatic
conditions
3. SELF-ADHESIVE MEMBRANE
The
installation is much easier and quicker.
4. EPDM - ETHYLENE PROPYLENE DIENE
MONOMER
No torches or gas required during installation.
Resistant to UV, Ozone, and air pollutants.
Temperature
resistance
Lightweight
5. TPO - THERMOPLASTIC POLYOLEFIN /
PVC - POLYVINYL CHLORIDE
Compared to
many other types of roofs, TPO roofs are extremely long-lasting. They hold up
well to long-term exposure to the sun's ultraviolet light, and they are highly
resistant to puncturing, tearing, or water damage.
B. GEO MEMBRANE
A geomembrane is a thin, synthetic
liner or barrier used to control the movement of fluids (liquids or gases) in
or out of a human-made structure or system. They are typically made from
1. HDPE - HIGH-DENSITY
POLYETHYLENE
2. PVC - POLYVINYL CHLORIDE
3. LDPE - LOW-DENSITY POLYETHYLENE
4. EPDM - ETHYLENE PROPYLENE DIENE
MONOMER
5. TPO - THERMOPLASTIC POLYOLEFIN
PROPORITIES OF GEOMEMBRANE
Impermeability: Geomembranes are very low
permeability, which means that they are very effective at preventing the
passage of liquids and gases.
Durability: Geomembranes are designed to be
durable and last for many years, even in harsh environments.
Resistance to chemicals: Geomembranes are resistant to a wide
range of chemicals, including acids, bases, and solvents.
Flexibility: Geomembranes are flexible, which
makes them easy to install and conform to the shape of the ground
APPLICATION
OF GEOMEMBRANE
Landfills: Geomembranes are used to line
landfills to prevent the leakage of leachate (contaminated water) into the
ground.
Canals and ponds: Geomembranes are used to line canals
and ponds to prevent water from leaking out or seeping into the ground.
Reservoirs: Geomembranes are used to line
reservoirs to prevent water from leaking out or seeping into the ground.
Mining: Geomembranes are used in mining
operations to prevent the contamination of water and soil by mining waste.
B. LIQUID WATERPROOFING MEMBRANE
Liquid applied waterproofing
membranes come in the form of liquid that can be sprayed on the surface.
Liquid waterproofing membranes are
a type of coating that is applied directly to the surface of a building or
structure to create a waterproof barrier. They are commonly used in moist
environments where high levels of water are present like roof, terrace,
bathrooms, wet rooms, and basements. These membranes work by forming a
continuous and seamless layer over a surface which prevents water from
penetrating into the underlying materials.
Different type of Liquid membranes
1. WATER/ACRYLIC-BASED
MEMBRANE
Water/acrylic-based
liquid waterproofing membranes are usually made from a combination of acrylic
polymers and other additives, making them highly resistant to water and other
environmental factors, such as UV radiation
2. POLYURETHANE
(PU) MEMBRANE
Polyurethane
membranes are highly elastic and can withstand both positive and negative
hydrostatic pressure. They are commonly used in roofing applications and can resist
exposure to sunlight and other environmental challenges.
3. BITUMINOUS
LIQUID WATERPROOFING MEMBRANE
Bituminous
membranes are made from a mixture of bitumen and other materials such as
polyester or fibreglass. They are highly resistant to water and can be applied
to a variety of different surfaces including concrete, metal or wood.
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