Statistical Classification of Economic Activities NACE Rev. 2.1

This class includes:
- erection of roofs
- roof covering

This class excludes:
- rental of construction machinery and equipment without operator, see 77.32

This class includes:
- construction activities specialising in one aspect common to different kind of structures, requiring specialised skill or equipment:
construction of foundations, including pile driving
damp proofing and water proofing works
de-humidification of buildings
shaft sinking
erection of steel elements
steel bending
bricklaying and stone setting
scaffolds and work platform erecting and dismantling, excluding rental of scaffolds and work platforms
erection of chimneys and industrial ovens
work with specialist access requirements necessitating climbing skills and the use of related equipment, e.g. working at height on tall structures
- subsurface work
- construction of outdoor swimming pools
- steam cleaning, sand blasting and similar activities for building exteriors
- rental of cranes and other building equipment, which cannot be allocated to a specific construction type, with operator

This class excludes:
- rental of construction machinery and equipment without operator, see 77.32