Underfloor heating systems cannot respond rapidly to quick temperature changes, and have longer heat up and cooling down periods than other forms of heating systems. There is greater disruption when installing an underground heating system in an existing building than with other systems. The choice of floor finishing requires careful consideration, and changes of floor finish may affect performance. It is advisable to avoid solid wood or laminate floor finishes, that may be affected by the frequent temperature changes. Stone or ceramic tiles work well.