Heat Reduction & Energy
Top-floor flat or house too hot? Cut the heat at the roof
Reflective coatings, insulation and ventilation that make top-floor rooms noticeably cooler and reduce AC running time.
If you live on the top floor, you know the feeling: ceilings radiating heat late into the night, ACs that never switch off, and bedrooms that are hottest exactly when you want to sleep.
Most of that heat comes through the roof slab, which absorbs sun all day and releases it into your rooms for hours. RennovEN measures where the heat comes from and treats the roof, the walls or both.
Signs you need this
- Ceiling feels warm to the touch in the evening
- AC runs constantly in summer
- Rooms stay hot long after sunset
- Electricity bills spike from April to June
The RennovEN promise
- 10-year warranty on all works
- Itemised pricing, approved before work begins
- One accountable team across every trade
- Residential specialists — homes only
Diagnosis
Why it happens
Dark, bare roof slab
Concrete absorbs most of the sunlight that hits it and stores the heat.
No insulation
Indian roofs rarely have insulation, so stored heat flows straight into rooms.
Trapped hot air
Without high-level ventilation, warm air collects under the ceiling.
Our method
How RennovEN does it
- 1
Heat survey
Check roof exposure, surface condition and room orientation.
- 2
Recommend
Coating, insulation, shading or ventilation as fits your home.
- 3
Prepare
Repair cracks and waterproof weak areas first.
- 4
Install
Apply the chosen system and review comfort after.
What’s included
- Roof heat survey
- Crack repair before treatment
- Heat-reflective coating or insulation system
- Ventilation recommendations
- Comfort review after treatment
What affects the cost
- Roof area
- Coating vs insulation system
- Roof surface condition
- Any waterproofing needed first
Every home is different, so we don’t publish rate cards. After a free inspection you get an itemised estimate, and you approve every line before work begins.
Get my itemised estimate10-year warranty
The roof coating or insulation we install is covered for 10 years against workmanship defects such as peeling or debonding. Natural weathering of reflectivity is normal wear.
How our warranty worksFAQ
Top-Floor Heat Reduction: your questions
Related
You might also need
Heat-Reflective Roof Coating
Reflect the sun off your roof and cool the rooms below.
ExploreRoof Insulation
Over-deck insulation, insulated tiles or under-deck systems that slow heat flow through your roof, chosen for your structure.
ExploreCool Roof Solutions
A complete cooling system for your roof — coatings, insulation, and shade.
Explore