Spalling Warning Signs

Hi,
We are looking at houses and a couple in the home reports mention spalling brickwork. Is there anyway when we view a property to know how bad/deep the damage goes? Are there any warning signs we should look for?
For example, one today had a section about 1m by 4m that had three bricks that were missing their fronts. Should we just assume it would be a complete replacement job?
Can this affect the structural integrity of the house as well?
Thank you!

Asked by Isabelle on 15th Apr 2021
Expert Trade Answers
"This usually means the bricks used are beginning to fail due to water ingress which when the frost strikes it expands hence blowing of the face of the brick depending on the brick type a good idea would be to post the whole area and water seal the area with a good quality water repellant"
Answered on 3rd Nov 2021 - Member since Sep 2021 - report
"Hi please see this

In construction 'spalling' refers to the flaking, cracking, peeling, crumbling or chipping of stone or bricks, particularly where areas of the surface are said to have blown. ... This can occur as a result of water penetration, freezing, heating (such as during a fire) or by mechanical processes."
Answered on 15th Apr 2021 - Member since Mar 2018 - report
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