You’ve built a beautiful building using the best material. Even the interiors look exquisite and unique. But after a few months, you get to know that the walls are chipping off and a terrible seepage issue has arisen. What went wrong Usually, this problem comes up when one does not waterproof the buildings properly. So, waterproofing chemicals and materials for roofs, and waterproof paints help you avoid such issues.
Water can penetrate into the building in many ways such as rainfall, groundwater, etc. So, it is extremely important to waterproof your building. Without effective treatment, even the best buildings fail to deliver optimal performance and get damaged.
Also, it is the process designed to prevent the penetration of water into the building structure. So, it is done in several stages and layers so that the building has multiple barriers.
Let’s understand how to treat the buildings in detail.
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The method prevents water from penetrating into the building. Also, it helps keep the building dry. Thus, it also protects the building from damage caused by moisture and water exposure.
Also, to treat a structure, you need to use membranes and coatings to protect the surface underneath and also safeguard the structural integrity of the building. So, the multiple coatings make the “Building Envelope”. This envelope determines the performance of the building against water penetration. So, the foundation of the building must be strong.
It wouldn’t be wrong to say that a building is a living entity that needs proper care and maintenance. Also, the issues that arise due to moisture and water must be avoided.
Water issues in the building can harm the structure in the following ways:
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If you see any of the following signs in your building, get ensured that it needs better treatment:
Also, all these problems can not only destroy the exterior structure of the building but also harm its interiors and core foundation.
So, it is very important to treat our building properly and keep these challenges at bay.
It becomes as important to treat your building as choosing the right material for it. So, you must understand the types of waterproofing materials for your job.
Polyurethane
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This is used for waterproofing of roof. Also, the polyurethane liquid membrane offers higher flexibility, with numerous benefits such as:
| Sr. No. | Companies and products | Price |
| 1. | Isomat polyurethane coating | Rs. 240/kg |
| 2. | BASF polyurethane membrane | Rs. 360/kg |
| 3. | Sika polyurethane chemical | Rs. 1650/4L |
| 4. | Fosroc Nitoproof PU coating | Rs. 432/L |
Image Source:Cormix
This material offers the easiest application. Also, the mixture contains sand, silica-based, organic, and inorganic chemicals. Also, these substances combined with lime work as a sealant.
| Sr. No. | Companies and products | Price |
| 1. | Fosroc cementitious acrylic coating | Rs. 150/kg |
| 2. | Cementitious chemical by Dr Fixit Fastflex | Rs. 1500/kg |
| 3. | ARDEX ENDURA cementitious coating | Rs. 700/kg |
Image Source: Comarbois
Also known as bituminous coating, or asphalt coating, this membrane works effectively against water penetration. Bituminous is mixed with a sticky organic liquid. So, its viscous quality makes it an extremely powerful roof waterproofing material.
There are two Bituminous application methods:
1. Roll roofing material method
2. Roofing felt method
The price of bituminous membranes ranges from Rs. 100 to Rs.2000 per roll depending upon the texture, thickness, and length of the membrane.
NOTE: Although the bituminous membrane offers excellent protection against water, it gets damaged by extreme temperature and UV rays. However, when modified with acrylic or polyurethane-based polymers, it gets away with this problem.
Image Source: Polygomma Industries
This roof waterproofing material is a synthetic rubber material made up of propylene and ethylene. Often, professionals associate EPDM rubber solution with a silicone compound. However, both vary in terms of chemical compositions, applications, and features.
Also, EPDM rubber is very flexible and recyclable.
The price of EPDM rubber membrane ranges from Rs. 30 to Rs. 300 per square meter.
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Another excellent waterproof chemical, Rubberized Asphalt works effectively to protect the home. Also, the strength, flexibility, and moisture vapour permeance of this material make it extremely durable and ideal for the treatment of the building.
Rubberized Asphalt is done by experts. Therefore, the overall price varies from one service provider to another.
Image Source: Sika Group
Yet another efficient waterproofing material is thermoplastic. Also, this strong solution offers protection for more than 40 years. So, its impact-resistant feature makes it ideal for all heavy-duty treatments.
Thermoplastic is done by experts. Therefore, the overall price varies from one service provider to another.
Image Source: extruflex
This material is commonly used for roof waterproofing. Also, its vapour permeable property gives it additional strength. The base of the PVC membrane makes use of polyester mesh or glass fiber.
The price of PVC roof waterproofing membrane ranges from Rs. 1000 to Rs. 2000/ 4 square meters.
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The waterproof paint protects the house from environmental degradation and enhances the lifespan of the structure. Thus, it either remains water-resistant or completely waterproof.
Also, this paint can be used inside buildings in bathrooms, kitchens, basements, etc. So, it protects the bathroom and basements from leaking and excessive moisture.
Bathroom waterproof paint for walls prevents moisture from penetrating the walls. Thus, these paints are preferred over regular paints as the former will not stand up as strongly against damp conditions as the former. Moreover, once moisture enters the walls, moulds and mildew will develop damaging the structure as well as causing health issues.
Image Source: Hometalk
Epoxy paints for waterproofing use strong chemicals to fight against extreme wet conditions and protect the surface. Also, they make ideal waterproof paint for roofs and terraces waterproofing paint.
Image Source: united gilsonite labs
Made from a mixture of latex and ceramic paint, the masonry waterproof paint is generally used for roofs. Also, this paint also absorbs chemicals and other liquids as easily as water and prevents them from penetrating inside. It also offers cement waterproofing chemical.
Image Source: imapicostudio
This type of paint suits best for roofs and terraces built with rectangular blocks. Also, this roof and terrace paint contracts and expels water from the surface. Additionally, this waterproof paint for the roof is non-toxic and easy to apply.
| Sr. No. | Companies and products | Price |
| 1. | Dulux Paints Weathershield paint | Rs. 3297/20L |
| 2. | Asian Paints Apex Ultima Weatherproof Emulsion Paint | Rs. 6400/20L |
| 3. | Berger Paints Weathercoat Roofguard | Rs. 6530/20L |
| 4. | Nerolac Paints Exterior Wall Paint | Rs. 367/L |
| 5. | Perma Elastomeric Coating Paint | Rs. 536/L |
| 6. | Fosroc Liquid Nitocote Wall Guard | Rs. 190/L |
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In order to retain the durability, life, and functionality of the building, it becomes essential to treat it properly. Issues like seepage and mold growth can cause expensive and lifelong damage to the building. Moreover, all this also causes health hazards and puts the lives of the occupants at risk.
Also, it becomes even more important to choose the right waterproof chemical and material for the specific area of application. So, if the choice of waterproof material goes wrong, it can hamper the strength, life, and functionality of the entire building.
Moreover, you must know the best type of waterproof material for each application. For instance, a Bituminous membrane must not be used on the exposed terrace. On the contrary, PVC membranes, or polyurethane treatment becomes more suitable here. Similarly, all types of waterproofing chemicals such as epoxy, EPDM rubber, thermoplastics, rubberized asphalt, etc. have their unique properties and application areas.
Thus, all these minor yet extremely necessary details about waterproofing chemicals for buildings along with price ranges help the professionals make the best decisions for their projects and deliver the most flawless results.
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