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Comparative Chart (abc Cool Roofs)

Parameters Pressed Tiles abc Tiles (Cool Roof)

Type

Red Clay. No glaze coat.

Ceramic base with improved glaze coat.

Appearance

Red to brown

White or any light shades.

Solar Reflectance Index (SRI)

20 to 30

90

Weight, kg/m2

43

13.50

Raw materials

Presently not available in Kerala

No shortage in Gujarat & Rajasthan

Bending Strength, kg/cm2

75

> 100

Unfired Tiles

About 5% or more
Difficult to remove at site

00% Nil

Method of Fixing

Needs more sloping to drain rain water.
Surface temperature reaches to 65 to 70 deg C.
Hence need more weathering course materials.

Needs less sloping due to smooth surface. Surface temperature reaches to 40 to 45 deg C.
Hence less material to maintain slope. Tile can be fixed on ¾ to 1” lime mortar. Lime act as a binder and good heat insulator.
Tiles shall be fixed in near - dry conditions. Excess water below the tiles, if any, could evaporate through downward movements.

Cleaning with acid

Not possible

At any point of time, a simple acid wash is sufficient to make like a new terrace. Abc grout and tiles are acid resistant.

During Service Life

Fungus formation, plant and vegetation growths commonly seen
Unburnt tiles gets eroded and water easily enters
Reduces roof span life

No fungus

No erosion is possible on glaze

Increases roof span life

Tile Warranty

Not confirmed

Building life time.

Delivery up to (10 lac sq ft)

Not possible to supply in one brand.

Delivery of same batch in 60 days easily possible.

Green Building concept

Not possible

Possible

History

Max temperature during 1951

As old as 100 years.

31 deg C

Cool Roof concept is very recent
Now a days : 41 deg C

Remark

In the present scenario of climatic conditions, Cool Roof becomes a necessity.

Cost Analysis

Generally a Cool Roof cost 10 to 15 % more. Materials used for gradient & weathering course can be greatly reduced. Increase in 15% can be compensated.

Tiles Cost per sq ft

Rs 35/

Rs 41/

 

Considering warranty, service life and Green Building material concept of abc Cool Roof Tiles, cost increase is negligible.

Parameters White Cement Tiles abc® Tiles Spec

Weight

4 kg/ft2 (43 kg/m2 )

1.4 kg/ft2 (15 kg/m2)

Tile Thickness

20 MM

9.10 mm

Modulus of Rupture

53 kg/cm2

> 100 kg/cm2

Moh’ s Scratch Hardness

Easily scratch- able

6 to 7 (as good as vitrified)

Stain Free

Not stain free

100% stain free

Type

White Cement Bounded/Multi-Layered

Ceramic base with improved glaze coat.

Appearance

White

White or any light shades.

Method of Fixing

Just like any mosaic tiles

Like ceramic tile. Change bed mortar as per R value.

Tile Sizes

300mm × 300mm

300 mm x 300 mm
250 mm x 250 mm

Water Absorption

7.5%

7 – 12%

Solar Reflectance Index

90

95

Polishing

Some brand needs polishing

Polishing never required

Surface Temperature

48 deg C

Max. 45deg C

During service life

Prone to staining

Never staining

Abc tile fixing system is designed with water proofing at various stages and lime mortar is suggested to get more R value.  Terrace will be very safe with respect to any kind of weather because ceramic tiles are processed at 1200 deg C against white cement tiles which are not processed at high temperature.

White cement tiles appears to be strong but weaker than ceramic tiles.

 

Sl  No

Parameters

abc Weather Proof S.R.I Coat (White Cool Coat)

abc Weather Proof S.R.I Tiles                     

1)

COST / Sq ft
Material + Installation

Rs 25 to 35 for pressed clay tile terraces

Rs 75 to 90

2)

Where to use

Very old building & structures
Good choice where additional floor is to be raised

New buildings / Old buildings

3)

Expected life

5 years 50 years

4)

Water Proofing

Yes

Yes

5)

Materials used

White minerals and Titanium mixed with acrylic polymer

Glazed ceramic tiles enriched with Titanium and Zirconium

6)

Weathering course (R 2.1 / 3.5)

Exclusively required as per ECBC norms.

Required as per ECBC norms.
Integrated with tile fixing system also.

7)

Solar Heat Reflection

>90%

>90%

8)

Scratch - ability

Less resistance

Excellent as good as vitrified tiles

9)

Accelerated Weathering Test (IS 101)

Passed

Passed

10)

Cool Roof Norms

Satisfied

Satisfied

11)

Maintenance tips

(any cool roof could be effective as long as whiteness is maintained)

Once in a few years, top coat (IV th coat) can be applied to restore whiteness.

Normal washing is sufficient to restore original surface. Check grouting points for any damage.

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Comparative Chart
(abc Cool Roofs)
Our Products

Abc Weather Proof S.R.I(Cool) Coat

These tiles are suitable for roof top / terrace due to ability to reflect solar heat. Solar Reflectance Index is 95.

Abc Weather Proof S.R.I Tiles

These tiles are suitable for roof top / terrace due to ability to reflect solar heat. Solar Reflectance Index is 95.

Hollow Tile + abc Cool Coat

These tiles are suitable for roof top / terrace due to ability to reflect solar heat. Solar Reflectance Index is 95.

 

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