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What's happening to my bricks?

Postby Boltonlass » Thu Apr 22, 2021 3:58 pm

The bricks under my patio door look to be crumbling and I can see something in one of them! Can anyone advise what's happening, why and how I can fix this?
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Simply Build It

Postby stoneyboy » Sat Apr 24, 2021 8:46 pm

Hi boltonlass
The most likely cause of the bricks breaking up is frost action on the ones below DPC level. There is little you can do about this given the proximity of the sill and the decking. You could have this strip rendered and accept it will need replacing every few years.
Regards S
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