Mr. Eoin O'Dowd:

The cost analysis was carried out as part of the 2020 additional guidance to Technical Guidance Document B - Fire Safety - Volume 2 Dwelling Houses and informed the publication of that document. In terms of the provision of a suppression system, in that version of the document, it was in the case of specific modifications for the internal layouts of what we term open-plan flats. Here we would typically have a protected-entrance hallway that the suppression system works in place of.

In the same vein, the travel distance within common corridors was lengthened by means of suppression systems where they are provided. Those systems are an essential life-safety system. Not unlike our other life-safety systems provided in buildings, our fire alarm or smoke control systems have redundant backups by means of battery or generator systems. With those suppression systems, given their essential characteristics for life safety and control of the growth of a fire pending the arrival of the fire services, it is essential the redundancy is-----