Sometimes it pays to build up - and take the roof with you. by Henri de Marne RAISING the ROOF Raising or moving an existing roof is often more economical than building a new one from scratch. In past issues I described two roof raisings. One was to create a dormer on a Cape. On that job, we hinged most of one side of the roof, then lifted and held it with a crane while the carpenters raised the wall they had built in the attic the day before. The other job involved an unusual situation where part of a trussed roof was removed to add a second story to part of a house. The piece of roof happened