Identification Crosswall/RAT-trad ex council with flat roof
Hi everyone, I'm wondering if anyone is familiar with this construction type? It's a 1950s ex council house (SW9 7LG). It has a flat felt roof. I think it's a crosswall construction (RAT-trad, rationalised traditional construction) but just want to check if anyone knows any more details. I'm wondering what the internal walls are likely to be made of too. I assume if it's a RAT-trad then the internal walls won't be load bearing? but some of the internal walls seem quite thick so i'm not sure. Thanks in advance.