Home -> Forums -> Construction -> Cement -> Cracks in concrete roof

Cracks in concrete roof

Tue Jun 28, 2016Total posts : 2
Aarav Sharma
Aarav Sharma
Join date: Jun 2016
Topic: Cracks in concrete roof

I have noticed small cracks developing on my concrete roof. I would like to fix the problem myself since the cracks are still small in size and are just developing. I wanted advice on an effective and easy to use waterproofing compound that could fill the cracks and also prevent leakage during the monsoon. Any suggestions?
Wed Jun 29, 2016Post  #1
S L Gupta (Civil Engg)
S L Gupta (Civil Engg)

Join date: Mar 2008
Dear Sharma
        

Repair Cracks on RCC Surface

Clean cracked portion and apply guniting

The cracked portion should be widen gently and be cleaned of all loose materials.  Fill the cracked portion by pressure grouting or ‘guniting’. The material for such grouting can be epoxy or cement (with suitable admixture).

Apply epoxy and finish the surface

Epoxy has more strength and adhesion than cement and can go into very thin cracks as fine as 0.1 mm. The surface should be finished according to adjacent area on the wall.
Note: The cracks in RCC members/ structural members should be repaired immediately with consultation form structural engineer/professional
 
Wed Aug 24, 2016Post  #2
Dhanush Ahuja
Dhanush Ahuja

Join date: Aug 2016
Post subject: Finally found a solution!

Hi Aarav

I carried out waterproofing repairs on my concrete roof before the last monsoons. I had faced some leakages so I decided to call in a contractor to get the job done. He used a flexible waterproof coating that not only worked well that monsoon but is still going strong! I was very impressed with his work so I asked him what he used. He used a waterproofing compound called roff hyguard. I could see first-hand how effective it was so it definitely could be something that you could try.

 

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