(ShareCast News) - Roofing and building materials company Northern Bear has turned in an improved first-half pretax profit of £1.1m, from £0.9m, that it said marked pleasing progress.Net-bank debt had fallen to £2.0m at 30 September, down from £4.0m a year ago and from £2.5m in March. Basic earnings per share was 5.2p, from 4.2p.Executive chairman Steve Roberts said he was pleased with the company's continued progress."The results for the six months ended 30 September 2016 represent a further improvement in performance, following excellent results in the previous two years," he added.At about 11:08 GMT, shares in AIM-quoted Northern Bear were up 4.4% to 47.5p.