Hardy Replacement I am replacing the old siding on home with Hardy siding. Do I replace old up to soffit or to 12″ siding that buts up to top up of window and soffit? Do I replace 12″ old with 12″ Hardy? I have digital picture of old, but no way to attach them. Don Tom’s Answer: Your browser does not support the audio element. Got a question? Click here to ask Tom Podcast: Play in new windowSubscribe: iTunes | Android | RSS Related PostsHardie vs. 105Gable VentsHow can I tell if it’s really Hardie Plank?Cellulose/Fiberglass ComboKiller Bees!