House Construction
RCC roof slab casting done right — the first time
Correct shuttering, steel placement, concrete grade and curing for a roof slab that is strong, level and leak-resistant.
The roof slab is cast in one day but carries your home for decades. Mistakes on that day — wrong cover to steel, honeycombed concrete, early removal of shuttering — show up years later as cracks, sagging and leaks.
RennovEN treats slab day as a critical milestone: steel is checked against drawings before the pour, concrete is mixed and vibrated properly, and curing is supervised.
Signs you need this
- You are at the roof-slab stage of construction
- You want an engineer to check steel before the pour
- Past slabs in your area have leaked or cracked
- You need a terrace room or extra floor slab cast
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
Insufficient cover
Steel too close to the surface rusts, swells and cracks the concrete from inside.
Honeycombing
Poorly vibrated concrete leaves voids that weaken the slab and let water in.
Short curing
Concrete that dries too fast in Indian summers develops shrinkage cracks and loses strength.
Our method
How RennovEN does it
- 1
Shuttering check
Level, rigid formwork with proper props.
- 2
Steel inspection
Bar size, spacing, cover blocks and laps checked against drawings.
- 3
Pour & vibrate
Correct mix, continuous pour and mechanical vibration.
- 4
Cure
Supervised curing and correct de-shuttering time.
What’s included
- Pre-pour steel and shuttering inspection
- Specified concrete grade
- Mechanical vibration during the pour
- Supervised curing period
- Slope provision for roof drainage
What affects the cost
- Slab area and thickness
- Steel quantity as per structural design
- Concrete grade and mixing method
- Shuttering type and height
- Site access for materials
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
Slabs we cast are covered for 10 years against workmanship defects such as honeycombing or improper cover. Roof waterproofing we apply is also covered.
How our warranty worksFAQ
RCC Roof Slab Casting: your questions
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