Louisiana-Pacific ( LPX ) is a rather boring manufacturing business at first glance, specializing in the production of building materials. Despite the fact that Warren Buffett owns around 8% of the company through Berkshire Hathaway, the company has attracted very little media attentionI´m a German value investor with a strong focus on companies that can be bought with a high margin of safety far below their intrinsic value. My portfolio is very concentrated with around 8-12 companies and a preference for s ...