2400X1200X12MM Sheet of Celotex TB4012 (Was TB3012) PIR Insulation Board.
TB codes are "Thermal Break" boards and are designed to be installed in areas where thermal bridging may occur and needs to be countered.
CELOTEX TB4012 INSULATION 2400X1200X12MM
Celotex Insulation TB4012 is designed for use as a thermal break insulation. This type of insulation creates a barrier between products such as roof timber and plasterboard. Alternatively in floors for perimeter upstands blocking possible thermal transference from the wall to the screed floor. Another area it is also generally installed is around window reveals where a thin Celotex insulation board is required.