Noise reduction measures on existing buildings outside the base. Can consist of the following measures on buildings:
— Vents,
— Windows,
— Doors,
— External and internal measures on walls,
— External and internal measures on roof constructions,
— Balanced ventilation,
— Tinsmith works,
— Painting work,
— Moving fixtures,
— Building cleaning and washing,
— Environmental clearance,
— Demolition.