Though not uniformly codified across the country, this tradition reportedly originated to prevent damage caused by vibrations during the hottest part of the day when materials might react differently. Some claim that any drilling or hammering noise near centuries-old churches or castles is strictly restricted, or face a fine, reinforcing an unusual intersection of cultural customs, preservation concerns, and everyday life rhythms. Despite some uncertainty about the legal enforceability of these rules, they showcase how heritage protection in Spain can blend practical, cultural, and surprisingly quiet demands in preserving history.
Source / verification note
Based on various local accounts and heritage protection discussions in Spanish municipalities; no centralized legal text found.