Key Clients - Waterproofing & Concrete Protection

APP Membrane Waterproofing by Asian Paints is a polymer-modified bituminous waterproofing membrane designed to provide durable protection against water ingress in roofs, terraces, podiums, basements and other concrete structures. APP (Atactic Polypropylene) modified bitumen membranes combine bitumen with polymer modification to provide improved flexibility, durability and resistance to weathering and moisture.

Dolphin Enterprise provides APP membrane waterproofing solutions using Asian Paints waterproofing systems for residential, commercial, industrial and infrastructure projects. Our waterproofing solutions are suitable for terrace waterproofing, roof waterproofing, RCC slab waterproofing, podium waterproofing, basement waterproofing and other exposed and protected concrete surfaces.

• Polymer-modified APP bituminous waterproofing membrane
• Effective protection against water penetration and moisture ingress
• Suitable for terrace and roof waterproofing
• Good resistance to weathering and temperature variations
• High flexibility and dimensional stability
• Suitable for concrete roofs, RCC slabs and other compatible substrates
• Available in different thicknesses depending on project requirements
• Torch-applied installation provides effective bonding to the prepared substrate
• Suitable for new construction as well as selected renovation and waterproofing applications

APP membranes can be used for a wide range of waterproofing applications, including:

• Terrace Waterproofing
• Roof Waterproofing
• RCC Slab Waterproofing
• Podium Waterproofing
• Basement Waterproofing
• Parking Area Waterproofing
• Industrial Roof Waterproofing
• Commercial Building Waterproofing
• Residential Building Waterproofing
• Canopy and Utility Area Waterproofing

A successful APP membrane waterproofing system depends not only on the membrane but also on proper surface preparation, primer application, membrane laying, torch application, overlapping and detailing at joints, corners, drains and vertical terminations.

A. What are the causes of water Leakage in Hotels & Resorts?  

As per the study done by the team of Dolphin Enterprise, water leakage in hotels and resorts can occur due to several factors, including ageing waterproofing systems, poor construction practices, inadequate drainage, structural movement, and lack of preventive maintenance. Common areas affected include rooftops, terraces, balconies, bathrooms, swimming pools, podium decks, basements, kitchens, and water tanks. Cracked concrete, failed sealants, damaged expansion joints, blocked rainwater outlets, and leaking plumbing lines are also frequent causes. If left untreated, water leakage can lead to structural deterioration, mould growth, corrosion of reinforcement steel, damage to interiors, higher maintenance costs, and disruption to guest operations. A professional inspection followed by the right waterproofing and concrete protection system can help prevent recurring leaks and extend the life of the building. 

•  Natural causes for waterleakage in Hotels & Resorts

India's weather is diverse, sometimes erratic, and is one of the main reasons behind water intrusions. For many, this is the first reason they adopt different types of waterproofing. Here is a list of natural causes of water intrusions in India.

1. Heavy Monsoon Rainfall in India: The monsoon season often overwhelms drainage systems and attacks unprotected terraces & walls, causing water to seep through cracks. 
2. Dust and humidity of India : Whether your resort is situated in coastal areas or amidst forest greenery, the dust and humidity from the environment slowly cause moisture to build up in pockets. While this isn't the water intrusion you see overnight from downpours, it is equally harmful in the long run. 

• Man-made causes for waterleakage in Hotels & Resorts

A reason for water intrusion that often slips away from our attention is tiny errors. Here are a few causes that fall under this category and create an unwanted splash in your hotels & resort:

1. Faulty installations : Whether during a repair or even construction, improper sealing around windows, roofs, or doors creates havoc during rainy season.
2.  Damaged pipes: Temperature changes can expand plumbing. Leaky or burst pipes can create moisture problems and spread alarmingly when left unreviewed or made of sub-par material. 
3. Lack of maintenance: Structural materials can deteriorate over time, allowing water to intrude. Neglected gutters and drains can overflow and seep into every building only to be noticed too late.  

B. What Happens to a hotel & resorts without proper Waterproofing? 

 Resorts without proper waterproofing are vulnerable to water leakage, damp walls, mould growth, peeling paint, cracked concrete, corrosion of reinforcement steel, and damage to interiors and finishes. Constant exposure to rain, humidity, swimming pool water, and coastal conditions can accelerate structural deterioration, increase maintenance costs, and shorten the lifespan of the building. Water ingress may also lead to room closures, guest complaints, health concerns due to mould, and loss of revenue. Investing in a professionally designed waterproofing system for roofs, terraces, balconies, basements, podium decks, bathrooms, swimming pools, and water tanks helps protect the property, reduce lifecycle costs, and provide a safe, comfortable experience for guests. 

1. Mould growth: Water intrusions, such as leaky roofs and damp walls, foster harmful mould. This turns your precious resort into a breeding ground for health risks and unpleasant odours.
2.  Insects and diseases: Moisture eventually causes stagnant water pockets around the resort. This attracts water-borne insects like mosquitoes and roaches, damaging your brand's reputation, hampering guest comfort, and spreading disease. 
3. Structural damage: Whether it's slow seepage or flooded drains, water intrusion weakens foundations, beams, and walls, leading to costly repairs and forced renovations. 
4. Deteriorating aesthetics: Without the right types of waterproofing, constant moisture will crack tiles, cause paint to peel, and erode furniture , ruining the resort's visual appeal and business. 

C. What are the issues at Resorts & Hotels that neessiate different types of Waterproofing? 

.  Hotels and resorts contain a wide variety of structures, and each requires a waterproofing system designed for its specific exposure and service conditions. 

Using the correct system for each area helps prevent leaks, protects the structure, and reduces long-term maintenance costs. 

1. Overcrowded pool decks and lawns: A party by the pool or lawn-side celebrations are great signs of happy customers. But when these spaces get overcrowded, it often leads to more leakages, spills, and damages than preferred. Situations like these require robust waterproofing to eliminate water intrusion, allowing the parties to continue unhampered. 
2. Rooftop traffic: Resorts with accessible rooftops, pool decks, or bars often experience huge foot traffic, wind, and rain. These areas are among the most water intrusion-prone and need the most effective types of waterproofing.
3. Overused rooms: Certain rooms, like bathrooms, children's play zones, or family suites, tend to get overused. Whether it's splashes during bath times or just numerous visits, waterproofing measures in bathrooms and play areas are a must to avoid water damage, cracks, leaks, and more.
4. Weather warriors: Resorts must be weatherproofed year-round, from torrential downpours to scorching sunshine. Well-waterproofed roofs with proper flashing and heat-reflective coatings in sunny regions become necessary.
5. AC blues: Condensation from air conditioning units can lead to water pooling and potential mould growth. Regular maintenance of AC units and ensuring proper drainage for condensate are vital.
6. Clogged calamities: Clogged drains are among the most frequent issues in every resort and home. Drainage systems clogged by leaves and debris can cause overflows and water damage. Without robust types of waterproofing, these fast-spreading seepages can wreak havoc

D. What are areas to be waterproofed in a resort and a hotel?

Here are the key areas that need to be protected against waterleak and must be waterproofed no matter what, 

1. Roofs: Flat roofs are prone to water pooling and seepage. Since water intrusion progresses quite fast through the roof, it is crucial to waterproof it. Roof waterproofing involving specialised Waterproofing like CWS100, Bitumen coatings or liquid PU solutions, that can make the roofs leak proof. 
2. Bathrooms: Constant shower, bathtub, and sink use can cause moisture problems. With most water usage happening in and around bathrooms, it is a significant risk not to waterproof them. Preventing water damage and mould growth requires targeted waterproofing around floors, walls, and shower cubicles. 
3. Pools: Pools are a highlight in any hotel or a resort, but they also present unique challenges. Good waterproofing of the pool shell and surrounding areas prevents leaks and maintains pool health. 
4. Walls (both interior and exterior): Proper Waterproofing solutions repel rainwater and prevent moisture penetration on exterior walls. The internal structure is protected from peeling paint and dampness. 
5. Kitchens: Bathrooms and kitchens need waterproofing around sinks, cooking areas, and dishwashers to prevent mould and water damage.
6.  Water tanks: There are many water tanks and concrete water reservoiurs to store fresh water of grey water in a hotel & resort. Resort operations depend on underground & over ground water tanks; waterproofing keeps them safe and leak-free. The waterproofing of potable water storage tanks has to be coated protected with food grade waterproofing like CWS100 or Food grade epoxy waterproofing. 
7. Spas and wellness areas: Steam rooms, saunas, and plunge pools are luxurious but moisturising. These areas must be waterproofed to prevent water damage, mould growth, and guest safety. 
8. Laundry rooms : High-volume operations in Hotel & resort laundry rooms can cause moisture problems. Waterproofing floors and walls in these areas prevents mould and building damage.

While these are the main areas to attack, you must also thoroughly check for water structures such as fountains and reflecting pools

What are the types of waterproofing for Hotels & Resorts?  

Hotels and resorts require different waterproofing systems depending on the area of application, structural design, and exposure conditions. While several waterproofing technologies are available, CWS100 Penetrating Concrete Waterproofing System offers a permanent solution for concrete structures and can significantly reduce maintenance costs over the building's lifecycle.

CWS100 is an advanced penetrating concrete waterproofing system that reacts with the concrete to form a permanent Calcium Silicate Hydrate (C-S-H) gel within the pores and capillaries. Unlike surface coatings, it becomes an integral part of the concrete and cannot peel, puncture, or delaminate.

Ideal Applications:

• Roof slabs and terraces 
• Podium decks 
• Basements 
• Swimming pools 
• Water tanks 
• Lift pits 
• Retaining walls 
• Foundation slabs 
• Parking decks 
• Service areas 

Key Benefits:

• Permanent waterproofing for concrete structures 
• Penetrates deep into the concrete instead of forming a surface film 
• Seals pores and micro-cracks while reducing water ingress 
• Resistant to chloride and sulphate attack 
• Protects reinforcing steel from corrosion 
• Improves concrete durability and service life 
• Zero VOC and suitable for potable water applications 
• Requires minimal maintenance compared to conventional systemsWith the key areas in mind, choosing the types of waterproofing for resorts that suit your needs may be complex and confusing. If you're wondering how many types of waterproofing there are, the answer is many, especially with the extensive product range from Dr. Fixit. Here are some carefully curated types of waterproofing that would be most effective for resorts.

1. Liquid PU coatings : Amongst the many types of waterproofing, this advanced polyurethane coating is ideal for uneven surfaces like roofs, balconies, and pool decks. Known for their superior elasticity and UV resistance, a liquid PU coating creates a crack-bridging membrane that adapts to surface unevenness and movements due to temperature shifts. This makes it very durable, flexible, weather-resistant, and easy to maintain.
2. Thick coating solutions: Great for interior walls and bathrooms, these exterior coating solutions create a strong barrier against moisture with their polymer-modified cement or acrylic composition. Choose ones with anti-fungal and anti-algal properties to combat mould growth in humid areas and superior protection from capillary moisture penetration.
3. Hardening sealants: These penetrating solutions are meant for concrete surfaces such as foundations and basements to strengthen the material's inherent ability to repel water. Hardening sealants are usually silicate-based and chemically react with the concrete to form insoluble crystals and protect against moisture ingress. They are a low-maintenance and durable choice among the many types of waterproofing.
4. Sheet solutions: Available in various materials like plastic or fabric, these sheets are perfect for high-water-pressure areas. Their high tensile strength and resistance to hydrostatic pressure ensure long-term moisture control. Use them for retaining walls or under flooring in moisture-prone areas like pool decks.