Source google image: https://c8.alamy.com/comp/MXK7P4/building-site-with-house-under-construction-reinforced-concrete-floor-with-isolation-netherlands-MXK7P4.jpg
Construction isolation
Source google image: https://c8.alamy.com/comp/MXK7P4/building-site-with-house-under-construction-reinforced-concrete-floor-with-isolation-netherlands-MXK7P4.jpg