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Technical Information

European Technical Approval

The PFSolutions System achieved European Technical Approval from the European Organisation for Technical Approvals (EOTA) in July 2007. The British Board of Agrement (BBA) is the UK representative for the EOTA and is responsible for issuing European Technical Approvals in the UK. The PFSolutions System has therefore achieved the equivalent of BBA certification and achieved the required ‘CE’ mark of approval.

A full copy of the European Technical Approval is available upon request.

Fire Resistance
Wall thickness (including CBPBs) Verification procedure Fire resistance period (min)
150mm ETAG 009,
Annex C
REI 30
175mm REI 90
200mm REI 120
215mm REI 120
230mm REI 120
250mm REI 120
300mm REI 120
Acoustic (Airborne sound insulation)
Wall thickness (including CBPBs) Verification procedure Acoustic rating
150mm EN ISO 140-3
EN 12354 and
ENISO 717-1
Rw = 51dB
175mm Rw = 53dB
200mm Rw = 55dB
215mm Rw = 56dB
230mm Rw = 57dB
250mm Rw = 58dB
300mm Rw = 61dB
Thermal resistance
Wall thickness (including CBPBs) Verification procedure Thermal resistance
150mm Calculation
according to
EN ISO 6946
R = 0.229m2K/W
175mm R = 0.240m2K/W
200mm R = 0.251m2K/W
215mm R = 0.257m2K/W
230mm R = 0.264m2K/W
250mm R = 0.272m2K/W
300mm R = 0.294m2K/W

Thermal CO2

The energy expenditure required (embodied CO2 burden) to produce a concrete structure is greater than for steel or timber structures. This embodied CO2 burden can be demonstrated, subject to BREEAM (BRE Environmental Assessment Method), to be offset against the operational CO2 emissions, many times over, in comparison to lighter-weight forms of construction employing active heating and/or cooling systems which are not based around the structure’s inherent thermal mass.

Plasterboard on walls and ceilings acts to reduce the effectiveness of heavyweight thermal mass benefits as it is more (heat) reflective than exposed concrete or masonry.

The thermal conductivity (λ) of Cetris board (24mm thick) is 0.26W/mK in comparison to plasterboard which is 0.17W/mK. There is no cavity in the PFSolutions system between the permanent-form panel and the concrete as there is with conventional plasterboard panels which have been dabbed onto the wall. The absence of this cavity further improves the thermal mass rating of the PFSolutions system.

Cavity wall comparison.