Brick Batting Works in Hyderabad
Brick batting — also known locally as "coba" — is a traditional waterproofing method that’s been used on terraces and flat roofs for generations, and it remains popular in Hyderabad because it does double duty: waterproofing and heat insulation. Broken bricks are laid flat in lime mortar with a built-in slope toward drains, creating a thick, insulating layer that keeps the slab below noticeably cooler than a bare RCC roof.
Lime mortar, broken bricks, Dr. Fixit waterproofing admixtures, cement plaster
Common Causes We See in Hyderabad
- Bare RCC terraces with no heat-insulating layer, common in older buildings
- Existing brick batting that has cracked or lost its slope over decades of weathering
- Homeowners wanting a durable, low-maintenance alternative to chemical membrane coatings
- Terraces facing intense direct summer sun where insulation matters as much as waterproofing
Our Process
- 1 Clean and prepare the RCC slab surface
- 2 Apply waterproofing base coat on the slab
- 3 Lay broken bricks flat in lime mortar with proper slope
- 4 Fill joints with lime mortar and finish smooth
- 5 Final cement plaster or tile finish as required
Frequently Asked Questions
How is brick batting different from chemical coating waterproofing?
Brick batting is a thicker, traditional masonry-based system that also provides heat insulation, while chemical coatings are thinner, faster to apply, and purely for waterproofing. Brick batting has a longer lifespan but takes more time and cost to install.
Does brick batting really reduce indoor heat?
Yes — the layer of brick and mortar adds thermal mass and an air gap effect that noticeably reduces heat transfer into the slab compared to a bare or thinly-coated RCC roof, which is why it remains popular for Hyderabad’s summer heat.
How long does brick batting waterproofing last?
A well-installed brick batting system with proper slope and lime mortar can last 15–20 years with minimal maintenance, significantly longer than most chemical coating systems.
Can this be done over an existing damaged brick batting layer?
In most cases the old layer needs to be removed down to the RCC slab first, since laying new brick batting over a cracked or hollow existing layer won’t solve the underlying seepage.
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