Interpretation #6911
Published January 24, 2012
Original Request
- Code Version
- 2007
- Code
- EXTBLDG
- Code Description
- Existing Building
- Chapter
- 6
- Section
- 611.1
- Topic
- re-roofing - Insulation
Question
Is additional insulation required when a condo is to be reroofed?
Answer Published 01/24/2012 at 10:47 AM
No, additional insulation is not required. However, the
existing level (R-value) of insulation must be
replaced or maintained.
existing level (R-value) of insulation must be
replaced or maintained.
Commentary
The "No" applies unless the re-roof qualifies as a
renovation as defined in 202. And it seems this is
addressed in Section 612.
For the purposes of this code, renovation occurs when the
first alteration of any wall, ceiling, floor, or other
structural part or mechanical system of the building
commences, whether or not that alteration affects the
external dimensions of the structure.