Share Why should I get a chimney cap? chimney questions Three great reasons: 1. rain 2. animals 3. sparks In addition, caps also: prevent rain from damaging your chimney walls. stop birds and other animals from nesting in your chimney. protect your roof from sparks. Previous Article What if I don’t use my fireplace? 21 / Apr / 2012 Next Article What is creosote? 21 / Apr / 2012