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PYRITE
SOLUTIONS
IRELAND

A DIVISION OF BRACKFIELD CONSULTING

Irish Standard 398-1:2013

I.S. 398-1:2013 came in to affect on 29 January 2013 and was available for purchase shortly after this date. The standard aims to provide a formalised protocol for testing and categorising hardcore materials which are suspected of containing unacceptable levels of pyrite. A system of Green, Amber and Red has been adopted for the condition and risk rating of a property. In all cases, certification to I.S. 398-1:2013 requires sampling of the sub-floor aggregate(s) and structural condition assessment combined with reporting by a competent Chartered Engineer or equivalent qualified competent person.

Buildings which fall under this category are deemed to be of negligible risk of damage due to pyritiferous sub-floor expansion of the hardcore. The property presents with either no structural damage or damage attributable to factors other than pyrite.  

Green certificate categorisation

Buildings which fall under this category are deemed to be of either low (Category B) or significant (Category C) risk of damage due to pyritiferous sub-floor expansion of the hardcore. The property may present with either no structural damage or damage attributable to factors other than pyrite OR the property may present with some structural damage typical of damage caused by sub-floor expansion of the hardcore. In both cases the hardcore will present as being susceptible to pyritiferous expansion according to the Geologists report.

Amber certificate categorisation

Buildings which fall under this category are deemed to be present with (significant) structural damage due to pyritiferous sub-floor expansion of the hardcore. A period of monitoring (6-12 months) may be required to determine this damage condition rating.The hardcore will present as being either susceptible to pyritiferous expansion or at risk of significant pyritiferous expansion according to the Geologists report.

Red certificate categorisation

The Finance (Local Property Tax) (Pyrite Exemption) Regulations 2013 were passed by the Oireachtas on 7th May 2013 (download .pdf). In order to qualify for exemption status the regulations require that a property presents with either significant structural damage or structural damage which is progressive in nature. If properties have been tested for pyrite prior to the introduction of I.S. 398-1:2013, then the old sampling and testing data may be used but it should be validated by a professional geologist with relevant experience. However, in order to attain a Certificate of Categorisation for Reactive Pyrite in Sub-Floor Hardcore Material which is a requirement for any claim; a structural engineers report undertaken in accordance with I.S. 398-1:2013 is required and would therefore need to be commissioned. A document outlining the basis of the Regulations can be downloaded here (download .pdf)

The LPT exemption only applies after a certificate confirming “significant structural damage” has been issued. The period of exemption starts from the liability date (1st November) following issue of the certificate and we understand the exemption applies for a period of five years.

Local Property Tax (LPT)