BURNABY, B.C. - Taiga Building Products Ltd. (TSX:TBL) has credited an increase in gross margin for a big improvement in its fiscal 2011 second quarter earnings.The Burnaby-based wholesale distributor of building products said it earned a profit of $ 3.3 million or 10 cents per share in the three months ended Sept. 30. That was up from $ 1.9 … [Read more...]