Q. I’m remodeling an old house. I have a metal duct that runs through a crawl space. What do you recommend to go around it and insulate it? Also, there is one place where I want to redirect the duct ...

Q. I live in a 1,000 square foot house to which an addition was added several years ago. The bathroom and bedroom in the addition are always cold, as they are the rooms farthest from the furnace.