- Project plans
- Project activities
- Legislation and standards
- Industry context
- Specialist wikis
Last edited 02 Jul 2021
Why do buildings crack? (DG 361)
Why do buildings crack? (DG 361) was first published by BRE in May 1991, and the original content largely remains valid. The current edition was published on 21 August 2014 and includes updated references. It was written by Roger Sadgrove.
Most buildings develop cracks in their fabric, often soon after construction when materials are drying out, but sometimes later. Most early cracking is not structurally significant and is easily repaired. Only rarely does cracking indicate a reduction in structural capacity.
However, diagnosis can be difficult, as every building is unique and several factors may combine to produce a defect. DG 361 examines the causes of cracking in buildings, describes a wide range of potential problems and offers complete solutions to every cracking problem. It is intended to broaden the reader’s understanding of the factors that contribute to cracking and so increase the likelihood of correct diagnosis and remediation.
The contents of the 12 page digest are:
- Extent of movement.
- The effect of movements: how do cracks occur?
- Temperature changes.
- Initial drying out of moisture and wetting and drying.
- Loss of volatiles.
- Freezing and thawing of absorbed water.
- Subsurface crystallisation of soluble salts.
- Sulfate attack.
- Corrosion or oxidation of steel.
- Moisture expansion of fired clay products.
- Alkali silica reaction.
- Hydration of oxides and unstable clinker aggregates.
- Imposed load effects.
- Foundation movement.
 Related articles on Designing Buildings Wiki
- BRE articles on Designing Buildings Wiki.
- BRE Buzz articles on Designing Buildings Wiki.
- BRE Buzz.
- Building Research Establishment.
- Burland scale
- Cracking and building movement.
- Cracking in buildings.
- Defects in brickwork.
- Defects in construction.
- Defects in dot and dab.
- Defects in stonework.
- Ground heave.
- Latent defects.
- Leaning Tower of Pisa.
- Preventing wall collapse.
- Pyrite and mica redress issues in Dail Eireann.
Featured articles and news
Will the way we heat homes change when winter comes ?
Can XR technology be leveraged in design & construction?
Or are you capping.
Digital gaming competition for UK students aged 16 to 18.
Heritage protection in England vs Australia.
Three-quarters of fire doors fail inspections
The role of geoparks, biospheres and world heritage sites.
Just one month to go ! Find out more here.
A new gallery for the University of Huddersfield.
What will it take to stop it ?
To celebrate world bee day 2022 !
Not forgetting part F and the new part overheating part O.
As energy prices jump up in cost.
With people in the UK from Ukraine.
Industry leader Steve Murray takes on role.
An abundant and versatile building material.
600,000 heat pump installations targeted per year by 2028.
Helping prevent those unwanted outcomes.
How has transport changed due to Covid-19 ?
Will you need it ? after June 15 and the new Part O ?
Create an account and write the first of many articles.