Flooring in Preston — post-war brick veneer on timber, newer townhouses on slab.
Preston is largely post-war brick veneer with newer townhouses filling in behind. The older houses sit on timber; the townhouses are slab-on-ground, and that changes both the underlay and the moisture check.
A slab that has not finished drying will lift a glued floor months after it looked perfect. We test rather than assume, because that failure is expensive and it is ours to fix.