43.23 — Installation of Insulation

This class includes: - thermal insulation works (e.g. for pipes, boilers and ducts, interior or exterior, including cladding for insulation) - sound insulation works - vibration insulation works - fireproofing works - installation of passive fire protection systems - hydro insulation - internal insulation of roofs

This class excludes: - external insulation of roofs, see 43.41 - waterproofing of roofs, see 43.41