Paul Sweet said:
This is interesting.I don't see any reference to energy codes in Chapter 9. Chapters 6 to 8 require alterations to comply with the IECC or IRC, but spaces that are just used for a different purpose than originally don't have to be upgraded.
If you use the prescriptive metnod, 307.5 would require compliance with the IECC, unless the original use was very energy intensive. The prescriptive method might be the only option in Virginia, because 301.1.1 requires compliance with this chapter or one of the methods in 101.5, but Virginia amendments to Chapter 1 changed 101.5 so it doesn't list any methods.
It might be good to also post this on the VBCOA website.
Thanks Paul, I know many that read the VBCOA also review this forum because it's more active.
Where the code references ICC Chapter one it is valid;
VCC 101.4
Chapter 1 of the IBC is not incorporated as part of the USBC, any reference to a provision of Chapter 1 of the IBC in the provisions of Chapters 2 - 35 of the IBC is generally invalid. However, where the purpose of such a reference would clearly correspond to a provision of Chapter 1 established herein, then the reference may be construed to be a valid reference to such
corresponding Chapter 1 provision.
I'm currently looking at the VRC (IEBC) for clarification:
Such state amendments to the IEBC are set out using corresponding chapter and section numbers of the IEBC numbering system. In addition, since Chapter 1 of the IEBC is not incorporated as part of the
Virginia Rehabilitation Code, any reference to a provision of Chapter 1 of the IEBC in the provisions of Chapters 2–15 of the IEBC is generally invalid. However, where the purpose of such a reference would clearly correspond to a provision of Chapter 1 established herein, then the reference may be construed to be a valid reference to such corresponding Chapter 1 provision.
101.6 Order of precedence.
The provisions of Chapter 1 of this code supersede any conflicting provisions of Chapters 2 –15 of the IEBC and any conflicting provisions of the codes and standards referenced in the IEBC. In addition, the state amendments to the IEBC supersede any conflicting provisions of Chapters 2–15 of the IEBC and any conflicting provisions of the codes and standards referenced in the IEBC. Further, the provisions of Chapters 2–15 of the IEBC supersede any conflicting provisions of the codes and standards referenced in the IEBC.
The provisions of Chapter 1 (USBC) supersede change of occupancy, alterations and reconstruction in Chapters 2 - 15 of the IEBC. Clear as mud
Francis