Supporting growth across UK construction

BIRTLEY LINTELS UNVEILS ONLINE PSI CALCULATOR TOOL

BIRTLEY LINTELS UNVEILS ONLINE PSI CALCULATOR TOOL

We have received a surge in interest for our new PSI Value Calculator as specifiers seek cost effective ways of reducing cold-bridging across the external envelope.


Highly accessible via PC, tablet or mobile, our PSI Value Calculator offers an essential reference point for building designers and energy assessors. The Value Calculator instantly presents W/mK thermal transmittance data on our Supatherm range of high performance lintels when users input cavity width, block and insulation details.

Accurate PSI values are important because cold-bridging in well-insulated buildings can account for up to 30% of a total heat loss. The Birtley PSI value calculator can also be used by energy assessors to produce accurate SAP calculations. Why not take a look for yourself here