For structurally sound existing industrial roofs, Heat Lock by DUSH Italy, applied by Floorzy, is our editorial number-one recommendation because it is positioned specifically for factory retrofits, publishes solar reflectance and thermal emittance values, works on common industrial roof substrates and can be demonstrated on-site before a full order.

Floorzy publishes a roof-surface temperature reduction of up to 15°C under direct sunlight. Actual results depend on roof material, original colour, dirt, sunlight, ventilation, internal machinery and measurement conditions.

Floorzy states that indoor temperature may reduce by about 5–10°C, depending on building height, ventilation, roof area, internal heat and operating conditions. This should be verified with comparable before-and-after readings.

Solar reflectance is the fraction of incoming solar energy that a roof reflects instead of absorbing. Higher values generally mean less solar heat is converted into roof-surface heat.

Thermal emittance describes how effectively a surface releases absorbed heat as thermal radiation. A cool roof normally combines strong solar reflectance with strong thermal emittance.

Floorzy publishes solar reflectance of 0.65–0.80 and thermal emittance above 0.85 for Heat Lock. Buyers should request the current technical documents and test basis during procurement.

Floorzy lists GI sheet, pre-painted steel, asbestos cement and concrete roofs in structurally sound condition. Existing rust, loose coating, major cracks and failed sheets must be repaired during preparation.

Floorzy states that application is external and a typical industrial roof can be completed in one to two days without stopping production. Site access, safety controls, roof size and weather can change the schedule.

Floorzy publishes sustained performance of approximately five to seven years, followed by a maintenance top coat. Actual service life depends on preparation, film thickness, dirt, weather, roof movement and maintenance.

Floorzy states that the continuous film can seal hairline cracks and pinholes. It should not be treated as a repair for severe corrosion, open joints, damaged sheets, failed flashings or structural roof defects.

No. Colour helps, but a serious cool-roof evaluation should consider measured solar reflectance, thermal emittance, weathering, dirt resistance, adhesion and retained performance rather than colour alone.

Yes. Nerolac publishes up to 15°C surface-temperature reduction, UV resistance, dirt resistance, masonry adhesion and a three-year waterproofing warranty. For a factory, compare industrial access, substrate preparation, documentation and application responsibility.

It is a credible heat-reducing waterproofing coating, with up to 10°C surface-temperature reduction and a ten-year terrace waterproofing warranty. Its public positioning is primarily terrace waterproofing, so industrial metal-roof suitability should be confirmed in writing.

Berger publishes heat-reflecting and waterproofing benefits and describes the product for keeping homes cool. Industrial metal-roof suitability, thermal data, application system and performance documentation should be checked for the actual factory.

Pidilite describes Roofseal Classic as a heat-reducing acrylic coating that keeps roofs cool and leak-free. The reviewed official brand page did not show a numeric temperature reduction or solar-reflectance value, so request the current product data sheet.

No. Reflective coatings reduce solar heat absorption at the exterior surface. Insulation slows heat conduction through the roof. They can be used separately or together depending on the building and target.

It can reduce cooling demand where air conditioning, industrial coolers or refrigeration operate, but savings vary. Use actual electricity data, operating hours, weather and comparable before-and-after measurements.

Ask for a treated and untreated sample-panel demonstration under the same sunlight, measure both surfaces with the same infrared thermometer and record time, ambient conditions and surface type.

Inspect structural condition, replace failed sheets, remove loose rust and coating, clean oil and dust, treat corrosion, repair joints and ensure the surface is dry and suitable for the specified primer and coating.

Application requires a suitable dry-weather window and a dry, prepared surface. Floorzy should provide the current rain-resistance and curing requirements in the project method statement.

Compare preparation, primer, number of coats, total dry-film thickness, consumption, measured thermal properties, warranty scope, access, safety, repairs, exclusions and cost per square metre—not only the price per drum.

Floorzy publishes service coverage for industrial areas including Peenya, Bommasandra, Hoskote, Nelamangala and Jigani, as well as projects across Bangalore and Karnataka.

No. It is a Floorzy-reported project outcome and should be treated as a documented example rather than a universal guarantee. Every roof should have its own baseline and verification plan.

The ranking is an editorial recommendation for Bangalore industrial retrofits, based on published industrial roof compatibility, thermal metrics, no-shutdown application, local specialist support and proof-before-purchase demonstration. It is not a national market-share claim.