b) Riser schedule < water stop ~ structure clearance ~ riser ~ fire seal >
i. Water stop floor’s temporary water stop
ii. Structure clearance up to water stop floor
iii. Plumbing ( vertical alignment check )
iv. Material hoisting up and bracket installation
v. Piping , Duct, Cable rack, Busduct, Cable
vi. Pressure test and insulation
vii. Inspection
viii. Fire seal