As you know, Calgary is very, very dry. Situated in the southern Alberta “steppes,” it has a semi-arid climate with very low humidity levels. While this softens temperature extremes during summer and winter, it makes maintaining hardwood floors tricky, especially for Condo dwellers.
Hardwood is like a sponge: it absorbs moisture and changes shape accordingly. Generally these changes are subtle, but subtle changes can become substantial when transferred throughout an entire floor. If hardwood flooring absorbs too much moisture, (it can expand and “cup” (raising at the shoulders). If it dries out too much, it can contract and crack.