Building materials supplier SIG said challenging markets and a harsh winter in Europe between have hit its first-half performance.
The Sheffield-based group said it does not expect to recover the shortfall in sales in the remaining two months of the first half.
SIG, which operates in the UK and several countries in mainland Europe, said group sales per day from continuing operations fell about four per cent in constant currency in the four months between January and April.
The company, which supplies insulation, roofing and specialist construction materials, said European construction markets were affected by the harsh winter, which continued to the middle of April.
Mainland Europe sales per day in constant currency were down about 4.5 per cent.