Sunanda Global’s Top 5 Waterproofing Membrane Solutions

Waterproofing membranes are essential components in protecting structures from water damage. They serve as barriers that prevent water from penetrating various surfaces, safeguarding buildings from leaks, mold growth, and structural deterioration. Understanding waterproofing membranes and how to select the right one for your needs is crucial for any homeowner or builder.

Understanding Waterproofing Membranes

Waterproofing membranes can be classified into two main types: liquid and sheet membranes. Liquid membranes are applied in a liquid form and cure to form a seamless barrier. Sheet membranes, on the other hand, come in pre-manufactured rolls that are adhered of affixed on to the surface. Each type has its own advantages and is suitable for different applications, which we will elaborate on.

Why is Choosing the Right Waterproofing Membrane Important?

Choosing the right waterproofing membrane is vital for several reasons:

1. Protection Against Water Damage: An effective membrane prevents water intrusion, which can lead to severe damage such as structural failure, rot and mould.
2. Cost Savings: The right waterproofing solution can save you money in the long run by preventing costly repairs and extending the lifespan of your property.
3. Comfort and Safety: Proper waterproofing contributes to a healthier living environment by reducing moisture-related issues that can affect indoor air quality and safety.
4. Compliance with Building Codes: Many regions have specific waterproofing requirements in building codes. Choosing the right membrane ensures compliance and avoids legal issues.

Factors to Consider When Choosing a Waterproofing Membrane

When selecting a waterproofing membrane, several factors should guide your decision:

1. Type of Surface: The surface you plan to waterproof is a key consideration. Different membranes are suited for various materials, including concrete, wood, and metal. For example, a liquid membrane may be ideal for irregular surfaces, while sheet membranes work best on flat, smooth areas.
2. Environmental Conditions: Assess the environmental conditions where the membrane will be applied. Factors such as climate, UV exposure, and temperature fluctuations can affect the performance of the membrane. For instance, areas with heavy rainfall or extreme temperatures may require more robust waterproofing solutions.
3. Application Method: Consider how the membrane will be applied. Liquid membranes can be sprayed or rolled on, making them versatile for many applications. Sheet membranes often require mechanical fastening or adhesive application, which may necessitate additional labour or expertise.
4. Durability and Lifespan: Evaluate the durability of the membrane. Some products may offer shorter lifespans and may require more frequent maintenance or replacement. Opt for a membrane known for its longevity to minimize future costs and efforts.
5. Budget: Lastly, your budget plays a crucial role in your decision. While some waterproofing membranes may have a higher upfront cost, their durability and effectiveness can lead to savings over time. It is essential to strike a balance between initial costs and long-term value.

Solutions by Sunanda Global

SUNPRUFE PU1K: Single component, liquid applied, polyurethane waterproofing and sealing membrane

SUNPRUFE PU1K is an advanced waterproofing solution ideal for a variety of applications, including RCC roofs, podiums, parking garages, walls, and water-retaining structures such as overhead and underground water tanks. Its single-component formulation is easily applied using brushes, rollers, or spray, providing a strong bond to concrete surfaces while maintaining flexibility under extreme temperature conditions. Unlike traditional sheet-type membranes, SUNPRUFE PU1K offers seamless waterproofing, ensuring comprehensive protection. This robust, thick membrane eliminates the need for a reinforcing layer, making it an efficient choice for both new constructions and renovations.

A well-known case study for its use in the prestigious Narendra Modi Cricket Stadium in Ahmedabad India. The coating is applied over a primer in two layers after perfect surface preparation. In the end, the membrane is protected with geotextile before laying tiles or other protective surfacing. This polyurethane liquid membrane waterproofing made the stadium one of the spectacles in the cricket community. 

SUNKOTE WP+: Single component liquid applied elastomeric waterproofing membrane

SUNKOTE WP+ is a high-performance waterproofing solution designed for all types of RCC surfaces, including roofs, chajjas, parapet walls, and external areas like toilets and sunken spaces. This strong, thick, elastomeric membrane system is UV resistant and meets international standards such as IS 101, ASTM C836, ASTM D 412, and DIN 1048. Being a single-component product, SUNKOTE WP+ can be easily applied with a brush, roller, or spray. Its non-toxic formulation allows the concrete surface to breathe while providing excellent tensile strength, tear resistance, and strong adhesion to substrates, ensuring long-lasting protection against water intrusion.

SUNROOF PU: Waterproofing and sealing membrane

SUNROOF PU is a high-performance waterproofing solution designed for all types of RCC surfaces, including roofs, chajjas, parapet walls, and external walls. Suitable for both flat and sloping roofs—whether new or existing—this strong, flexible membrane eliminates the need for reinforcement and does not stain tiles or marble. Its UV-resistant properties ensure long-lasting durability, while its non-toxic formulation allows the concrete surface to breathe, making it environmentally friendly and safe for use in confined areas. Additionally, SUNROOF PU can be applied on slightly damp surfaces without blistering, providing versatile protection against water intrusion.

POLYKOTE 2C: 2K cementitious, elastomeric waterproof coating

POLYKOTE 2C is a versatile waterproofing solution designed for various applications, including roofs, bathrooms, and water-retaining structures. It offers excellent adhesion to both porous and non-porous surfaces and retains flexibility even when submerged, making it suitable for environments exposed to water, domestic wastewater, and other chemicals. The product is non-toxic and safe for contact with potable drinking water, while its breathable properties allow substrates to breathe while effectively repelling water. Additionally, POLYKOTE 2C provides a CO2 barrier and anti-carbonation benefits, resists occasional foot traffic, and can be reinforced with polypropylene or glass fabric for added durability. Its ease of mixing and application ensures a reliable protective layer for concrete surfaces against water damage and aggressive elements.

POLYALK WP+: Surface applied a two-component capillary waterproofing coating of crystalline type

POLYALK WP+ is a high-performance waterproofing solution ideal for a variety of applications, including roof slabs, external walls, and submerged structures like water tanks and swimming pools. With exceptional flexural strength and extraordinary adhesion, it effectively protects concrete against carbonation and provides durable, long-lasting waterproofing. Notably, POLYALK WP+ can be applied in slightly moist conditions, making it suitable for exteriors during wet monsoon spells. Its unique crystalline action reactivates upon contact with water, offering additional protective benefits over time. Before application, surfaces must be cleaned and any faulty areas repaired to ensure optimal adhesion and performance.

In conclusion, selecting the right waterproofing membrane is vital for protecting your property from water damage and ensuring its longevity. Sunanda Global stands out as the best waterproofing company, offering a diverse range of solutions, including advanced waterproofing membranes, epoxy paint, waterproofing admixtures, and polyurethane coatings. 

With expertise in various applications, our team of waterproofing contractors in Delhi, as well as in cities like Chennai, Mumbai, and Hyderabad, is equipped to provide tailored solutions for your needs. Whether you’re looking to protect RCC surfaces or need quality finishes like gypsum plaster, Sunanda Global is committed to delivering exceptional results that safeguard your investments.

Ishita Manjrekar