I just had a repair done to my roof today where the wood rotted in a small part causing a sag. The plywood was replaced and an barrier was put down. Matching shingles were blended into the existing roof about 4 feet up from the gutter, and about 15 feet across. All plywood underneath this area was replaced. My question is regarding the shingles. Toward the gutter part of the roof the new shingles seem to not lay that flat causing an irregular look to them, especially when you look up at them from close. I was thinking that this might be because its cold, and when it warms up they might lay flatter down than they are right now. Am I wrong to assume that they will flatten themselves out when it gets a little warmer?