My husband and I bought our beautiful home about a year ago and have racked our brains trying to fix this one thing: the LOUD roof creaking. I should mention the house was built by an architect in the 70's. The entire house has cathedral ceilings with no attic. (Sorry, can't get pics to post.) The ceiling is made of 6" think tongue and grove cedar (or spruce) planks. The main supports of the house are 6x6 posts that run every 12 feet. While this creaking goes on throughout the day, the worst is at night and throughout the night. It is so loud it wakes us up; it sounds like a cement truck fell on the house. We've had several estimates for a new roof, but no one has heard of this creaking problem which we would like to address before spending the $15,000 on a new 40 sq. roof. My thought is that the expansion with temperature may be the culprit, but what I really want to do it get rid of the noise. Any ideas?