Home Resources Fact Sheets Fact Sheets Are you building or renovating your home? How do I become a NatHERS Accredited Assessor? Why should I become a NatHERS Accredited Assessor? How does your home rate? Is your rating accredited? How do windows work in NatHERS A certifier and surveyor's guide to the NatHERS certificate A Guide to the NatHERS Certificate Non-Accredited Certificate Guide