CoolGriha IR or Heat Reflective Coating

CoolGriha is latest IR / Heat Reflective water based high thermal emittance coating useful in the world of industrial and commercial buildings, as a roof coating system that has the ability to reflect the visible, infrared and ultraviolet wavelengths of the sun, thereby reducing heat transfer to the building.

CoolGriha  is defined as a cool roof coating by virtue of its ability to radiate absorbed, or non-reflected solar energy. Solar heat incident on a roof is dissipated by means of three physical phenomenon namely,

• A fraction of the absorbed heat is conducted to the ground and surrounding buildings
• A fraction is convected to air leading to higher air temperatures, and
• A fraction is radiated to the sky.

As such one has no control over the first two phenomenon but the third one, that is, the amount of heat radiated can be maximized by CoolGriha  roof/ wall coatings that inherently possess high emittance values. Use of CoolGriha  is particularly useful where the terrace covers an air conditioned space. A higher roof temperature necessarily leads to a higher load on the air-conditioning plant a reduction in roof temperature will result in lower roof temperature with consequent savings in power consumption.

Recommended use:

• Concrete, Plaster & Asbestos Cement Sheet
• Galvanized Tin Sheet
• Primed Metal
• Technical Information:
• Form: Viscous liquid
• Solids by weight: 45 % to 50 %
• Dry film thickness:  As per surface.
• Water absorption: Nil
• Abrasion resistance: excellent.

Advantages:

• Ready to use single pack system.
• Repels heat energy & control heat transfer.
• Reduces air-conditioning running cost.
• Its coating acts as a shields the surface from heat & water.
• Its film is water resistant & hence do not support growth of fungus & algae.
• Does not crack in wide temp. fluctuation.
• Cleans up with soap and water.

Special Features:

• CoolGriha enhances roof durability and reduces both building cooling loads and the urban heat island effect.
• CoolGriha is also an effective alternative to bulk attic insulations under roofs in humid tropical climates. Bulk insulation can be entirely replaced by CoolGriha roof coatings that both reflect solar radiation and provide emission to the sky.
• CoolGriha has excellent abrasion and water resistance it is also resistant to fungal growth

Direction for use:

• Application areas to be cleaned with a hard brush to remove all dust, weak paint, fungus etc. Cleaned area to be washed with water.
• The surface should be moist before application.
• Stir the paint thoroughly before each use.
• Apply first coat with brush on the cleaned & washed surface.
• Apply second coat after a gap of minimum one hour.
• Ensure that the coated area does not come in contact with water for minimum one hour.
• After completion of full coating, 24 hours is the (self) curing period for this paint.