James Hardie soffit panels are available in vented, non-vented and a range of pre-cut sizes. As with all James Hardie siding products, HardieSoffit panels are Engineered for Climate®, so you can have peace of mind that your siding products will stand up to the harshest elements no matter where you live. HardieSoffit panels are non-combustible and come with a 30-year non prorated, transferable, limited warranty.