Design Life

Permastore is the technical market leader in the design, development, manufacture, and supply of premium modular bolted
Glass-Fused-to-Steel, Fusion Bonded Epoxy coated and Stainless Steel containment storage solutions.

Design Life

PERMASTORE® Glass‑Fused‑to‑Steel structures have been utilised extensively for the containment, storage and treatment of drinking water, agricultural feed crops, animal waste, industrial effluents, and municipal sewage. Our structures have proven to be reliable and to provide cost effective containment solutions worldwide.

In 2000 the Company  undertook a detailed Design Life review of PERMASTORE® Glass‑Fused‑to‑Steel tanks and silos and determined that its products are designed for a minimum design life in excess of 30 years. The evaluation included the experience that has been accrued over a period extending over 40 years in association with the evolution of the design, third party assessment and an ongoing commitment to a programme of continuous product development and improved quality. The conclusion of this evaluation providing a sound basis for compliance with ISO 15686-1:2011, ISO 15686-2:2012 and ISO 15686-3:2002.

It is also important to differentiate between the terms ‘Design Life’ and ‘Service Life’:

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  • Design Life is the service life that is intended by the designer
  • Service Life is the period of time after installation during which a structure or its parts meets or exceeds the performance requirements.

The expected Service Life should therefore be equal to or greater than the Design life.  The earliest Glass‑Fused‑to‑Steel tanks supplied by the Company for Industrial and Municipal applications now have a proven Service Life history of over  40 years. It is therefore reasonable to conclude that PERMASTORE® Glass‑Fused‑to‑Steel containment storage solutions will provide a Service Life in excess of 50 years, when installed in accordance with the Company’s ‘Construction Guide for Tanks and Silos’, used in accordance with the  Company’s recommendations and  maintained on a routine basis in accordance with the Company’s ‘Tanks & Silos Inspection & Maintenance Manual’.

The evidence is that PERMASTORE® products are equal to or significantly better than any other containment solution currently available. Glass‑Fused‑to‑Steel tanks provide a well-proven, cost effective, readily adaptable, and easily maintainable storage solution with a proven performance pedigree.