Roof Heat Control • 8 min read • Peenya, Bangalore

Best Roof-Cooling Solution for Peenya Factories

If you run a factory or warehouse in Peenya, you already know what April to June feels like on the shop floor. Metal and asbestos roofs in this industrial belt routinely hit 65–75°C at peak sun, and that heat doesn’t stay on the roof — it moves straight down onto your workers, machinery, and stored goods. Here’s a look at the roof-cooling options available, and why Heat Lock has become the most practical fix for factories in this part of Bangalore.

Heat Lock solar-reflective roof coating by DUSH Italy, applied by Floorzy

Heat Lock — solar-reflective roof coating system, applied by Floorzy on Peenya factory and warehouse roofs.

Why Peenya Roofs Get So Hot

Peenya is one of Asia’s largest industrial estates, and a large share of its sheds share the same roofing: galvanised iron (GI) sheet or older asbestos cement. Both absorb 85–95% of the solar energy that hits them. Measured with an infrared thermometer at peak sun, bare GI roofs in this belt routinely read 65–75°C — hot enough to burn bare skin on contact. That heat radiates straight down into the shed below, pushing indoor temperatures up, straining exhaust fans and coolers, and cutting into worker productivity during the hottest hours.

What to Look for in a Roof-Cooling Solution

Actual temperature reduction, not just “cooling comfort” claims — ask for a number, and ideally a way to see it demonstrated before you commit.
No production shutdown — a fix that needs your shed cleared out for days is expensive before you even start.
Works on your existing roof — replacement or full insulation retrofits are usually overkill for a heat problem alone.
Reasonable payback period — the cost should be recoverable through lower cooling costs within a year or two, not a decade.
Suited to Indian roof types — GI sheet and asbestos cement behave differently from the roof types many imported products are designed around.

Comparing the Roof-Cooling Options

A comparison of the main approaches factories use to bring down roof and indoor heat.

Solution	Temp. Reduction	Cost	Disruption	Installation Time
Heat Lock Coating	Up to 15°C	Low–Medium	None	1–2 Days
Roof Insulation	10–20°C	High	Significant	Weeks
False Ceiling	8–15°C	Medium–High	Medium	Days–Weeks
Exhaust Fans	3–8°C	Medium	Low–Medium	Days

Insulation and false ceilings can reduce heat further in absolute terms, but both require construction work inside a live factory — scaffolding, dust, and days (sometimes weeks) where sections of the shed aren’t usable. For most Peenya units, that trade-off doesn’t make sense when a coating applied entirely from outside can deliver most of the benefit in one to two days with zero shutdown.

What Is Heat Lock, and How Does It Work?

Heat Lock is a solar-reflective, thermal-barrier coating formulated by DUSH Italy, applied by Floorzy on GI sheet, pre-painted steel, asbestos cement, and concrete roofs. Instead of trying to remove heat after it’s inside the building, it reflects 65–80% of incoming solar radiation before the roof ever absorbs it.

15°CRoof surface reduction

30%Typical energy cost savings

20%Productivity improvement

1–2 DaysInstallation time

The Numbers Behind It

Solar Reflectance (SR): 0.65–0.80 — versus 5–15% for a standard bare GI roof.
Thermal Emittance (TE): >0.85 — the coating releases absorbed heat back into the air rather than passing it into the shed.
Waterproofing bonus — seals hairline cracks and pin-holes in ageing sheets, reducing monsoon leaks.
Zero shutdown — applied to the outside of the roof, so work continues underneath as normal.
Cost — from ₹30–55 per sq. ft for the full two-coat system, including materials and labour.
Maintenance — a top-up coat is recommended every 5–7 years.

Floorzy doesn’t ask you to take the temperature-reduction figure on faith. Sample panels — treated vs. untreated — are brought to your site so you can measure the difference yourself with an infrared thermometer before deciding.

Real Result: A Peenya Textile Unit

18,000 sq. ft GI Sheet Roof — Textile Unit, Peenya Industrial Area

The problem: Indoor temperatures were reaching 48–52°C during April–June, leading to noticeable absenteeism, heat-related health complaints, and an estimated 20–25% drop in productivity during the hottest months. The unit employs around 120 workers.

The work: A two-coat Heat Lock application was completed across the full 18,000 sq. ft roof in two working days, with zero disruption to production and no interruption for the 120 staff working below.

68°C → 53°CRoof surface temperature

49°C → 41°CIndoor temperature at head height

2 daysTime to complete, zero shutdown

Worker comfort improved noticeably, and summer absenteeism dropped compared with the prior year. As the client put it at the time: “The difference was visible immediately.”

What Peenya Factory Owners Say

★★★★★

“The roofing heat shield reduced our indoor temperature significantly. Workers are more productive and we’ve seen real savings on cooling costs this summer.”

Mohan Das — Google Review, Operations Head, Industrial Cluster

★★★★★

“We had a badly damaged factory floor with major level variations. Floorzy’s team repaired it all before coating — the result is a level, professional floor we’re proud to show clients.”

Vijay Shetty — Google Review, MD, Manufacturing Unit, Peenya

Frequently Asked Questions

How much can Heat Lock reduce the temperature inside my factory?

Roof surface temperature can drop by up to 15°C under direct sunlight. Indoor air temperature typically improves by 5–10°C, depending on ventilation, building size, and other heat sources inside the shed.

Is the temperature reduction guaranteed?

Floorzy doesn’t quote a guaranteed figure, since results depend on factors outside its control — but the physics of solar reflection is consistent and measurable, and sample panels are demonstrated on-site before you commit.

What does Heat Lock cost in Bangalore?

Typically ₹30–55 per sq. ft of roof area for the complete two-coat application, including materials and labour. Volume pricing applies for roofs above 20,000 sq. ft. A site visit gives you an exact quote.

Can our factory keep running during installation?

Yes. Heat Lock is applied to the outside of the roof, so operations inside continue as normal throughout — this is one of the main reasons factories in Peenya choose it over insulation or false-ceiling work.

Does it work on asbestos cement roofs, which are common in Peenya’s older sheds?

Yes. Heat Lock is compatible with GI sheet, pre-painted steel, asbestos cement, and concrete roofs, without disturbing or removing the existing sheets.

How long does it last?

Heat Lock performs consistently for 5–7 years before a maintenance top coat is recommended — a quicker, cheaper job than the original application.

See the Temperature Difference on Your Own Roof

Floorzy brings sample panels to your Peenya facility and shows you the difference under real sunlight — before you commit to anything.

Explore Heat Lock Call +91 89517 65671

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