Kingspan has been ordered to halt sales of certain batches of its Kooltherm K15 product after they were initially found to meet a lower fire safety performance rating than advertised.

The insulation manufacturer was issued with prohibition notices by the Office for Product Safety and Standards (OPSS) on 23 December to stop the supply of K15 products and recall them, after the company itself alerted regulators to the problem on 25 October. The order applies to Kooltherm K15 products manufactured between 1 August and 18 October last year with an estimated sales value of £150,000.