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What is the best way of waterproofing a shed roof made of concrete 5'x4'

i have a shed that has a leaking roof in a couple of areas is there a product that would do the job..i have tried bitumen but this did not work and I do not really want to felt it.

2 Answers from MyBuilder Roofers

Prime the concrete roof, then use a cold applied liquid water proofing system. A qualified tradesman will issue a guarantee on this work.


Answered 3rd May 2017

Paint witch primere and felt 3 layers felt


Answered 27th Feb 2019

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