BRICK BAT COBA METHOD PDF

METHODOLOGY FOR BRICK BAT COBA (Water Drain Out System). SR. DESCRIPTION. 1 SURFACE PREPARATION. Cleaning the existing the RCC surface. Brick Bat Coba (BBC) is believed to be a waterproofing and BBC and other traditional methods like Mud Fuska or lime terracing are still being. BRICK-BAT-COBA TREATMENT. Surface Preparation. Cleaning the surface from dust, mortar splashes loose materials etc to get a sound concrete surface.

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Arch consultant required for Patna software park project Sasikala Raje December 31, Art of laying brick bat coba requires specialized skill and non-availability of manpower having this skillset is also the reason for the decline of this conventional method of waterproofing.

If we have advance options definitely should go for new modern and better techniques. Stone age did not come to an end because of scarcity of stones.

Why Brick Bat Coba Not the Correct Method for Terrace Waterproofing?

October 23, at 3: This is one of the oldest methods of waterproofing which was adopted by many when we moved towards flat roof construction. This method involves laying lightweight mortar on the roof and spreading it to give gentle slopes for draining away the rainwater immediately.

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Similarly, brick bat coba too may disappear from jethod not because of scarcity of bricks but due to other reasons. The gaps between the brick bats are generally kept between 15 and 20 mm. Water — How to do more with less Sawdust March 22, Chitra October 23, at 3: These gaps are brrick with cement sand mortar, in 1: Advent of more efficient and easy to use and install water proofing methods are the main reasons for brick bat coba lose its prominence in waterproofing industry.

Brick bat coba is a method to provide insulation for thermal comfort and waterproofing treatment to prevent leakage of water in case of RCC roofs.

Dying art of brick bat coba

Also, art of laying brick bat coba requires specialized skill and non-availability of manpower having this skillset is also the reason for the decline of this conventional method of waterproofing. This is also one of the main brifk for you not seeing this waterproofing system on many terraces nowadays.

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As an alternative, some embed broken tile or ceramic pieces in the plastic mortar which is brock called china mosaic. Lot of disadvantages also of brick bat coba.

This method was also preferred because of its efficiency in keeping the interiors cool. Before laying brick bats having an average thickness of about mm, about 70 mm near rain water pipe and mm at ridge are soaked overnight in water.

Once laid, brick bat coba can last at least 15 years if done by skillful applicators.