361
roof structures

363
Roof coverings

364
Roof cladding

369
Roofs, other

343
internal supports

331
Load-bearing exterior walls

334
Exterior doors and windows

335
Exterior wall cladding, exterior

336
Exterior wall cladding, interior

321
Subsoil improvement

324
Subfloors and Floor Plates

325
Floor coverings

326
Building waterproofing

319
Excavation, miscellaneous