I need to attach a bracket to hold a 42inch TV. It needs to be able to swivel and pull in and out a bit. So bracket needs to be very strong.
Question is: do I need to first cut out the 90mm internal warm board to somehow attach the bracket directly to the concrete blocks? I presume its not possible to attach something like this to internal insulation board?
(Prob means I'll have a cold bridge if I cut out board to attach directly to external wall)