Does the term fenestration include windows and doors? Does “opaque” include walls and doors? - American Wood Council

Does the term fenestration include windows and doors? Does “opaque” include walls and doors?

For residential provisions of the 2015 International Energy Conservation Code, fenestrations include all doors, both opaque and glazed.

The following FAQ is based on the presentation of BCD600 – Meeting Residential Energy Requirements with Wood-Frame Construction.