![How do I know if my home has defective concrete blocks? - HD McKay Consulting Engineers | Structural & Civil Engineers Ireland How do I know if my home has defective concrete blocks? - HD McKay Consulting Engineers | Structural & Civil Engineers Ireland](http://www.consultingengineers.ie/wp-content/uploads/2017/02/Defective-block-pic-4.jpg)
How do I know if my home has defective concrete blocks? - HD McKay Consulting Engineers | Structural & Civil Engineers Ireland
![Totally and utterly ruined': The eight-year battle by homeowners affected by mica concrete block scandal Totally and utterly ruined': The eight-year battle by homeowners affected by mica concrete block scandal](https://c2.thejournal.ie/media/2018/10/mica-2-752x501.png)
Totally and utterly ruined': The eight-year battle by homeowners affected by mica concrete block scandal
![Daryl Kelly on Twitter: "Due to the lack of cement and the presence of a mineral called mica these blocks are not fit for purpose. The mica holds on to water from Daryl Kelly on Twitter: "Due to the lack of cement and the presence of a mineral called mica these blocks are not fit for purpose. The mica holds on to water from](https://pbs.twimg.com/media/E1sgga-X0AEqaKR.jpg)
Daryl Kelly on Twitter: "Due to the lack of cement and the presence of a mineral called mica these blocks are not fit for purpose. The mica holds on to water from
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Donegal building firm Cassidy Brothers issues statement responding to horror stories of homes falling apart due to defective Mica-contaminated blocks - Irish Mirror Online
![Council chief claims defective mica blocks used for Wexford home were sourced 'outside of the county' - Independent.ie Council chief claims defective mica blocks used for Wexford home were sourced 'outside of the county' - Independent.ie](https://www.independent.ie/regionals/wexford/news/885ef/42284715.ece/AUTOCROP/w1240h700/Mica%20Gorey%20house.jpg-a)