the house doesn't have an attic. you can have access to the roof directly from the closet. the roof work was done last year so i still have warranty on the work. do you recommend that i contact the contractor who did the work on the roof. i don't think that there is a problem with the plumbing in the wall. the only thing that is affected are the ceilings in the closets. so from what i gather on your reply, the problem has nothing to do with insulation. i have been told that since the walls face the outside maybe, i don't know, this may be the cause. what do you think.