Any suggestions for curing a wet roof?

Susan writes from Newmarket, Ontario: "The north side of my roof, on the inside, is all wet. Some of the insulation is wet in the centre but we think that is causes by the poor job done by our contractor who didn't vent the bathroom right out of the roof. We stopped using that vent and the area around it dried but not the north section of roof - any suggestions??" Answer: I agree that ventilation of the roof was a problem: vents should be venting to the outside. The north side of a roof is typically the side getting the least amount of sun heat and it will take time to dry out. Even if it will eventually dry out with warmer weather, I recommend removing the wet insulation and replacing it after the wood dries. The joists or studs adjacent to the insulation in your attic may be damaged by moisture over time so it is best to remove the insulation and ensure the wood dries out. Use this time to also inspect the roof in this area for leaks or blocked soffits.  more