Earlier tonight, I was out at Menard's (Midwest based Home Improvement store) getting some sheets of 7/16" OSB for a project. Went to the stack, and there was a unopened bundle of OSB... Great! Good shape, no corners chipped off, clean and dry. Just what I wanted. So, I pulled off a few sheets, and it is warm to the touch. Huh? I lay my hands on the stack, where I just pulled the sheets off. Warm... like it has been in an oven. The warmth is radiating off of it. How? I looked at the date code on the sticker.... 11/19/2014 - 3rd shift. This OSB was made Wednesday night (like 72 hours ago), it was in my local store already... and the bundle was still warm on the inside. I've never seen anything like that before.