The house is 90 years old with 300 m.m solid walls rendered.All windows have conctete cills 800m.m wide by 100 m.m deep.Some of the cills have vertical cracks right through the cill.Have tried in the past veeing out cracks and filling with various types of morter and plastic fillers but eventually the cracks return.Is there a way of fixing these cracks once and for all?There are no structural problems just want to repair for cosmetic reasons
cracks in concrete cills
- Thread starter manxcat
- Start date
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If you have a photo it could be useful - however...
As far as I'm aware there are no products on the market to repair hairline cracks in concrete. With the expansion and contraction you get with concrete you would need to rake out the crack to around 7-10mm and then fill with an epoxy resin specifically designed for concrete repair. You would not have to (and should not) rake out all the way through the cill. See the pack for instructions. To make it last a little longer painting the cill to seal it would be a good idea too.
As far as I'm aware there are no products on the market to repair hairline cracks in concrete. With the expansion and contraction you get with concrete you would need to rake out the crack to around 7-10mm and then fill with an epoxy resin specifically designed for concrete repair. You would not have to (and should not) rake out all the way through the cill. See the pack for instructions. To make it last a little longer painting the cill to seal it would be a good idea too.
H
holmslaw
I had the same problem, used pva, seems to have worked, I hope.
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