Reused in situ – Definition - KBCN1902
A material qualifies as reused in situ where it meets all of the following:
- It is removed from its original position or original application within the building.
- It undergoes no more than minor processing that does not alter its fundamental nature (e.g. cleaning, cutting, fixing to other materials).
- It is reinstalled in a different position or a different application within the building (or reused elsewhere within the project).
Exclusion
Materials that remain in their original location and application throughout the works, including where they undergo minor processing such as cleaning, repair or redecoration, are considered as retained. These must be excluded from the Mat 03 calculator.
KBCN Reinstated 24-Sep-2026
Information correct as of 25