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What causes bricks to do this?
gazfocus
Posts: 2,492 Forumite
Not sure if this was the correct place to post this so apologies if it’s not.
Went to view a house today and the outside wall has deteriorated bricks like in the picture.
The section shown in the picture isn’t the worst, as there’s some much worse further towards the back of the house, but I was just wondering what causes this and is it something to be concerned about (other than it not looking particularly nice)?


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It's spalling, caused by frost damage. Badly damaged bricks can be individually replaced, but it is more important to make sure the mortar is intact to avoid water ingress.
"Cheap", "Fast", "Right" -- pick two.3 -
If a wall is originally built in lime mortar, and later on repointed with a strong cement mortar, this can increase the chance of the brickwork spalling.4
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That’s an unusual brick bond. Is that an extension?No reliance should be placed on the above! Absolutely none, do you hear?0
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Horrendous brickwork.
Make £2026 in 2026
Prolific £156.37, TCB £8.24, Everup £12.17
Total £176.78 8.7%Make £2025 in 2025 Total £2241.23/£2025 110.7%
Prolific £1062.50, Octopoints £6.64, TCB £492.05, Tesco Clubcard challenges £89.90, Misc Sales £321, Airtime £70, Shopmium £53.06, Everup £106.08, Zopa CB £30, Misc survey £10
Make £2024 in 2024 Total £1410/£2024 70%Make £2023 in 2023 Total: £2606.33/£2023 128.8%0 -
They used a different sized for the front, which is why it's been bonded like that.0
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I’ve seen a lot of houses in the area we are looking where the front of the house is completely different brick to the rest. It’s a horrible idea in my opinion. One house in particular had a really lovely front brick pattern then the sides/back of the house were red brick which was completely different. Spoilt the house for me.stuart45 said:They used a different sized for the front, which is why it's been bonded like that.0 -
It was often the case years ago, when only the front flank had high quality, expensive brickwork, and the sides and rear had the cheaper, poor quality bricks.2
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gazfocus said:
I don’t believe so. It’s where the front of the house meets the side wall.GDB2222 said:That’s an unusual brick bond. Is that an extension?
We can only see a few of the front bricks, but none of those have spalled. Different quality as well as size, perhaps?stuart45 said:They used a different sized for the front, which is why it's been bonded like that.No reliance should be placed on the above! Absolutely none, do you hear?1 -
Probably a much higher quality brick.1
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