Replace old
https://www.evernote.com/shard/s590/sh/d0dee1d7-001c-e68e-dc16-bb47ec060acf/3Yplu4myeJrZHbPo4I0v6IEV1ZhwqYMUEUxj413wKlBjBSpWjjw5hmJy1g
Replace old, inefficient insulation with newer materials to reduce energy loss and maintain comfortable indoor temperatures