I don't remember the details, but on a previous article on wooden skyscapers, it was explained how the engineering of the wood, which is also required for the n

I don't remember the details, but on a previous article on wooden skyscapers, it was explained how the engineering of the wood, which is also required for the necessary structural strength, made it very dense and practically incombustible. Fire proofing is an inherent quality, not something that's applied and thus could be done poorly. IIRC.