I've just had an estimate for repair of my cracked pebble dash
external wall and it includes a final coating of Murfill waterproof
water dispersed polymer solution. My son has warned that if water gets
in anywhere through a crack it will be trapped and will cause
problems. What's the general consensus about waterproof coatings for
rendered walls? I suspect the low temperatures last winter has caused
the damage to my wall.
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