House Construction
Terrace room construction — a cool, dry room on your roof
Add a barsati, study, guest room or home office on your terrace, built light, insulated against heat and waterproofed properly.
Your terrace is unused space waiting to become a study, guest room, gym or home office. A terrace room can add real value without the cost of a full floor.
Two things make or break a rooftop room: heat and leakage. It sits under the full sun and on top of your existing roof waterproofing. RennovEN builds it light, insulates it, and waterproofs every junction.
Signs you need this
- You need one extra room but not a full floor
- Your structure may not carry a heavy RCC floor
- You want a home office, gym or guest room
- You worry the room will be too hot
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
Rooftop heat
A room exposed to direct sun on all sides overheats unless the roof and walls are insulated.
Broken waterproofing
Building on a terrace disturbs the existing waterproofing. Junctions leak into the rooms below if not redone.
Excess load
Heavy masonry on an old roof slab can overload it. Lighter systems are often wiser.
Our method
How RennovEN does it
- 1
Load check
Assess the existing slab and choose a suitable construction type.
- 2
Waterproof base
Treat the terrace and junctions before building.
- 3
Build light
Construct with lightweight blocks or a steel frame, as suitable.
- 4
Insulate & finish
Heat-insulated roof, ventilation and finishing.
What’s included
- Structural check of the existing roof
- Terrace waterproofing at all junctions
- Lightweight wall and roof construction
- Roof insulation or heat-reflective coating
- Electrical points and ventilation
What affects the cost
- Room size and construction system
- Existing slab condition
- Insulation and roof type
- Toilet or pantry, if included
- Access for materials to the roof
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 terrace room and the waterproofing we apply around it are covered for 10 years against workmanship defects, including leaks at the junctions we build.
How our warranty worksFAQ
Terrace Room Construction: your questions
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