|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|
|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
|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|
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|
|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.|