Of course the outside would still be on fire. Most of the UK has either wooden or plastic window frames.
The absolute best outcome would be lower burn rates in the outer rings of the heat zone.
But in a full exchange fallout levels would kill those people regardless, and even if fallout didn't, they'd still starve.
I've seen maps from the 1950s - before the huge warhead build-up - which showed most of the UK being reduced to desert by fallout.
In reality, in a full exchange the larger cities would be hit multiple times, so the short-term odds of survival for anyone within 10-15 miles of a large city would be essentially zero.
The absolute best outcome would be lower burn rates in the outer rings of the heat zone.
But in a full exchange fallout levels would kill those people regardless, and even if fallout didn't, they'd still starve.
I've seen maps from the 1950s - before the huge warhead build-up - which showed most of the UK being reduced to desert by fallout.
In reality, in a full exchange the larger cities would be hit multiple times, so the short-term odds of survival for anyone within 10-15 miles of a large city would be essentially zero.