I picked up 130 firebrick this week and stacked them near my build.....then the rain came. They had been in an old building supply warehouse and were dry....I don't know how much water they absorbed but I imagine it was a fare amount. I am going to cover them before I leave this morning. IS this likely to cause a problem with the build, or will the moisture just bake out of them eventually? I see people talking about the oven getting wet after they build it but I havn't even started yet.