Nearly every ground floor in Corby is a solid one, which makes flooring here a preparation exercise rather than a structural one.
The two questions on a solid floor are flatness and moisture, and both get skipped more often than they should. Most of these slabs need levelling before a hard covering goes down. A floor that is out by a few millimetres over a couple of metres looks perfectly fine to the eye and shows badly in large format tile or engineered board, and there is no way to correct it once the covering is on.
Moisture is the one that causes the expensive failures. A slab of this era may have a membrane, may have one that has been breached by a later alteration, or may have one that was never especially effective. We test rather than trust the look of it, because a slab can appear completely dry and still be wet enough to lift an adhesive within a year.
There is one specific caution on this stock. Floor tiles from the 1950s to the 1970s, and the black bitumen adhesive under them, can contain asbestos. They are not a hazard while they are intact and covered. Taking a scraper or a grinder to them is another matter, so we check before lifting rather than afterwards.
Timber acclimatises in the house before it is fixed. Our flooring page covers the coverings we fit and the preparation that goes under them.