Cavan-based Kingspan expects to deliver a full year trading profit of around €750m.
Kingspan says this is "significantly ahead" of the €508m recorded in 2020.
In a trading update up to September 30th, sales for the insulation leader were €4.72 billion, which is 44% higher than in the same period last year.
Insulated Panels sales increased by 47% in the first nine months this year, while insulation boards sales were up 51% over the same period.
Kingspan says 2021 "has been unusual and characterised by order placement earlier in the year than is typical as customers sought to get ahead of ongoing inflation and availability pressures".
However, the company added that "there are no signs yet of any meaningful raw materials deflation" but that such an "impact would be negative" and Kingspan is "acutely conscious of that".
