Just read
As for the Walkie-Talkie, Shepherd thinks the developers could employ a number of possible solutions.
"They could coat the windows to reduce reflection - which would be a cheap fix - but the downside of that is it could reduce the light entering the building.
"Another solution would be for them to misalign the window frames, to slightly alter them by about a millimetre, but that would be very expensive," he says.
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If realigning the frames by 1mm corrects the problem, then surely the flipside is that the building was finished to incredible tolerances ? A testament to British construction techniques ?