When executives at Louisiana-Pacific (LP), a Nashville-based building products group, sat down to announce its first-quarter results on May 3, the fate of Entekra, an Irish company that LP first backed in 2018, was not high on the agenda. LP had bigger issues to worry about: amid a 30 per cent drop in single-family housing starts and a collapse in commodity prices, LP’s revenues for the quarter were $584 million, exactly half their level a year earlier. Almost offhand, LP confirmed reports that first appeared in US trade and local media last month: Entekra, founded by Irish businessman Gerry McCaughey…