Traditional methods of waterproofing are just that – traditional! Pidilite Construction Chemicals Ltd. has introduced Dr. Fixit NewCoat and Dr. Fixit Torchshield, two products that offer comprehensive waterproofing solutions.

Until now, waterproofing has been done with typical systems, like brickbat coba, lime terracing and the 'Mud Fuska.' Sometimes, tarfelt and bitumen are also used. All these methods are woefully inadequate, but also have certain disadvantages that can cause damage to the structure of the building. Most of these systems put increased load on the slab, they are more for insulation and do not offer leak-proof or water-tight solutions. As they age, breaking them and re-doing the same system is risky for the slab; cracks caused in the slab increase the problem of leakage. Also the expertise levels are not as good as in the olden days. The elements and foot traffic take their toll on the terrace surface.

Dr. Fixit Newcoat
Dr. Fixit Newcoat and Dr. Fixit Torchshield have been formulated after taking into account the weather conditions in India.

Dr. Fixit Newcoat is ideal for roof waterproofing that is old and needs to be redone. It is a high performance, heavy-duty weightless waterproofing system that can be applied over the existing waterproofing system, without even breaking it. It comes in three different light colors to ensure the customer gets all the three coatings. Dr. Fixit Newcoat does not require any additional protective system over it and is ideal for flat RCC roofs, even roofs subject to heavy foot traffic. Repairs on the existing terrace surface and the parapets, etc. must be done prior to the coating, as Dr. Fixit Newcoat is the final system, to give a finish.

Dr. Fixit Newcoat is resistant to algae, mildew and efflorescence. It breathes easily and reflects harmful UV and infrared rays to a great extent. Highly flexible with a crack bridging ability upto 1.5 mm, and excellent bonding strength with cementitious substrates, it is applicable on all new and old flat and sloping RCC roofs.

Large terrace slabs have different needs than small span labs. Large terrace slabs have continuous spans and require tougher membranes. Dr. Fixit Torchshield is a 4 mm thick torch-on membrane, with a 10 year life expectancy. This system is essentially laid over a screed course laid to slope of at least 1 in 100. It can also be sandwiched in between the sloped course below and an overlaying course of clay tiles and bedding mortar. Even sloped RCC roofs are recommended to be waterproofed with this system, as it is difficult to compact concrete in sloped roofs. Dr. Fixit Torchshield should be overlapped at different surfaces as recommended.

The two systems have proved immensely useful in preventing water seepage. It seems the worries of houseowners and builders are nearing their end. Finally, buckets can go where they belong – in the bathroom.

Terrace Waterproofing

In India, Terrace Waterproofing has always been done with very traditional materials. Typically systems like brickbat Coba, Lime terracing or the "Mud Fuska" technique are still very much in vogue. These systems have been offering waterproofing with some insulation against heat.

Some of the problems that these systems have are:
  • Heavy loading on the slab
  • Cracks on the surface, especially in case of brick bat coba
  • Expertise levels of application required for lime terracing/mud fuska not as good as in the olden days
  • Offer more insulation rather than a leak proof or a water-tight system
  • As they age breaking them and re-doing the same system is risky for the slab; cracks caused in the slab increase the problem of leakage
Simple steps can be taken up for new terrace waterproofing in case of both new & existing terrace slabs.

Some points for waterproofing contractors have been listed as under, to increase their rate of success, in carrying out the waterproofing jobs on terraces/roofs.

Structural Issues

Cause of Leakage:
  1. Cracks on the top surface of slab-Injection grouting as required, large cracks repair with URP modified mortar
  2. Cracks on the bottom of slab due to excess deflection of slab-Structural consultant's opinion must be taken; if leaking can be addressed with a hydrophobic PU foam injection grout
  3. Cracks at column supports-Structural consultant's opinion must be taken
  4. Excess porosity in the slab, bad quality concrete-Resort to Injection grouting
  5. Expansion joint in the slab-Polysulphide sealant application with proper detailing
  6. Inadequate design of the slab-Structural engineers opinion
  7. Spalling of concrete due to corrosion in the slab-Detailed repair with catholic protection & repair materials
  8. Cracks due to differential settlement of a building-structural and soil experts opinion must be taken
As the case may be, these must be addressed before waterproofing job is taken up.

Non Structural Issues:

  1. Slope not proper-Slope must be provided for water drainage
  2. Inadequate rain water pipes-Provide drain water pipes as required
  3. Parapet wall not in good condition-Repair parapet masonry/plaster using mortar added with w/p compounds/polymer bonding agents
  4. Internal cracks, honeycombs (finished with ordinary mortar), porosity, etc. which cannot be seen by eye-pack using inject grout at the place of leakage from top to bottom
  5. Mechanical installations like cooling towers, AC units, etc., on the terrace-Foundations must be examined and repaired if required
  6. Aggressive climatic conditions-choose and apply protective coating/WP system
  7. Thermal extremes-Provide insulation treatment over WP layer.

Details on the Product: Newcoat

Waterproof coating for terrace

Dr. Fixit Newcoat is a heavy-duty; microfibre reinforced acrylic based flexible terrace waterproof coating.It has been tested, approved & used by Housing Development Board of Singapore. Dr.Fixit Newcoat is a three-layer system with coats in different colors ensuring proper buildup of the thickness, making it a reliable waterproofing system.

Features & Benefits
  • Better film thickness-provides 1mm dry film thickness in 3 coats as compared to 300–400 microns in 2 coats of other products.
  • High crack bridging ability-bridges cracks upto 2mm width as compared to 0.5mm by other products
  • High tensile strength, tear resistence & bond strength- with cementitious substrates as compared to available products
  • Good resistance-Against UV, Infraded rays and algal & fungal growth
  • Ease in application-can be applied by brush or roller
  • Non toxic, breathable & washable
  • Aesthetic finish-available in pink, green and grey colors for different coats.

Torchshield

Dr. Fixit torchshield
Dr. Fixit Torchshield range of polymer modified bitumen waterproofing membranes are manufactured from rich bitumen and select polymers blended together to obtain excellent heat resistance & cold temperature flexibility. The polymer modified bitumen is then coated on to a dimensionally stable non-woven polyester/fibre glass carrier to obtain high tensile strength, tear and puncture resistance. The Dr. Fixit Torchshield membranes are available in both SBS & APP modified versions.

Features & Benefits
  • Self finished, jointless monolithic membranes provide excellent watertight and vapour barrier system
  • High tensile, tear and puncture resistance
  • Can take thermal and structural stresses effectively, without any fatigue
  • Laid quickly and easily; safe and environment friendly
  • Do not undergo early aging, thus provide long life durable membrane
  • Easy melting & fixing, thus saving on usage of expensive gases
  • Available in 1.5, 2, 3 and 4mm thickness APP/SBS modified membrane rolls

Areas of application / Application Procedure: Newcoat

All new RCC flat and sloping roofs

Existing cementitious waterproofing treatments like brick-bat-coba, concrete screeds, acrylic coatings, etc.

Torchshield

  • Re-roofings
  • Roofs with foot traffic
  • Roofs without foot traffic
  • Under tiling
  • Basements
  • Roof gardens
  • Tunnels and subways
  • Hydraulic works/Swimming pools
Pidilite has trained applicators to do the job if required, but the products are otherwise easy to use and can be used by the applicators/contractors etc. otherwise as well.
Click Here
To Know More or to Contact the Manufacturer
Please let us know your name.
Invalid Input
Please let us know your Designation.
Please let us know your Contact Number.
Please let us know your email address.
Please brief your query.
Our other Value-Added Services:

To receive updates through e-mail on Products, New Technologies & Equipment, please select the Product Category(s) you are interested in and click 'Submit'. This will help you save time plus you will get the best price quotations from many manufacturers, which you can then evaluate and negotiate.

Invalid Input
Invalid Input
Invalid Input
Durability is a key requirement for modern infrastructure projects – highways and roads, bridges, airports and airfields, walkways and plazas, parking structures and stadiums. Miles of concrete must

Read more ...

Buildings have major environmental impacts over their entire life cycle. Resources such as ground cover, forests, water, and energy are depleted to give way to buildings. Today, India has demonstrated

Read more ...

Scour is a natural phenomenon caused by the erosive action of flowing stream on alluvial beds. Failure of bridge due to scour at their foundations, which in this case consisted of abutments and pier, one 1.2 dia

Read more ...

To protect concrete structures like Flyovers, Bridges, Parking areas, Big Commercial and Residential Buildings, the normal decorative exterior paint will not serve the purpose as these paints are not vapour permeable

Read more ...

Repair Strategy of Stoplog Sill Beams During Operation Stage of 510 MW Teesta-V Power Station in Sikkim Running Power Stations serve as a boom to the economy of the country and any generation loss due to construction

Read more ...

Concrete protective liner is a multipurpose solution for waterproofing and protection of concrete surfaces against corrosion and destruction. The product warranties long-term and reliable protection of structures

Read more ...

Sangeeta Pandey, Chief Manager (Civil), Power Grid Corporation of India Ltd., Patna, PVS Sudhakar, Sr. General Manager (Civil), NOFN Works, Power Grid Corporation of India Ltd., Vishakhapatnam & Dr. Achintya, Professor of Civil

Read more ...

Samir Surlaker, Director, Assess Build Chem Private Limited discusses some new joint treatments and injection systems in waterproofing. It is a myth that waterproofing treatments can be carried out by application of single material

Read more ...

Years of research plus decades of practical experience have enabled FAIRMATE to develop detailed solutions to restore and rehabilitate concrete structures with structural rehabilitation, retrofitting and strengthening of RCC structures

Read more ...

Sunny Surlaker, Head Technical Services, Assess Build Chem writes on the selection ideologies, materials and methods for defect remediation in Concrete Buildings. The building façade or the envelope is the primary line of

Read more ...

This article provides some basic information on effects of fire on concrete, various condition evaluation methods, and show findings from a case study of a fire exposed concrete foundation in California, and informs construction

Read more ...

There is considerable controversy within the concrete repair industry regarding the use of bonding agents as a pretreatment method for the repair of deteriorated concrete. This paper examines the use of bonding agents

Read more ...

This paper discusses the effects of fire on concrete and provides a methodology to assess, evaluate and repair concrete structures. Though concrete is among the best fire-resistant building materials, it does get damaged when

Read more ...

The ACI 562 Code Requirements for Assessment, Repair, and Rehabilitation of Concrete Structures and Commentary was first published in 2013 and revised in 2016. Development of ACI 562 was an industry response to variations

Read more ...

The repair industry in India and for that matter, throughout the world, is like the story of an elephant described by seven blind people. Whichever part of an elephant will come in the hands of a blind man, the elephant will be described

Read more ...

The Chamera Hydro-Electric Project (Stage-III) is located on the river Ravi at village Kharamukh (250.0 m downstream of the confluence of river Ravi and Tundah Nala) in Chamba district of Himachal Pradesh. The Project consists

Read more ...

Terex — a diversified global manufacturer of equipment for mining and quarrying industries — is celebrating 10 years of operations in India and has announced expansion plans for its 45-acre manufacturing plant in Hosur, with which it plans

Read more ...

The rapid boom in the construction industry, has tremendously given rise to the demand for sand, causing deficiency of suitable river sand in many parts of India. Besides, river mining causes imbalance in the river bed water flow, and

Read more ...

Regardless of the quality of pavement material and design, increase in vehicular traffic and changing environmental conditions will reduce the service life of pavements and ultimately result in their failure. The causes and

Read more ...

With the increase in construction of buildings in the last two decades, it has been observed that many of the structures are already showing signs of distress. In some cases, repair measures become necessary even within a span

Read more ...

×
Sign-up for Free Subscription
'India Construction Week'
Weekly e-Newsletter on Construction Industry
Get the latest news, product launches, projects announced / awarded, government policies, investments, and expert views.