Tell someone or document it before you close it up.
Riser Offset Lands Inside the Floor Zone
Check the offset rise, run, joint locations, support locations, and required access against the actual floor-zone depth before fabrication or installation.
The riser offset shown here puts a joint and reinforcement inside the floor zone. I checked the floor elevations and available shaft depth. Can we verify the approved fitting and penetration arrangement before fabrication?
Watch out
Do not shorten the offset, flatten a fitting, or move a penetration merely to make it fit.
Check
Mark the floor structure and finished floor elevations.
Lay out the offset centerline and connector positions.
Check sleeves, rated construction, beams, and other services.
Confirm where the offset can be assembled and supported.
Steps
Mark the floor structure and finished floor elevations.
Lay out the offset centerline and connector positions.
Check sleeves, rated construction, beams, and other services.
Confirm where the offset can be assembled and supported.
Say this to your foreman
The riser offset shown here puts a joint and reinforcement inside the floor zone. I checked the floor elevations and available shaft depth. Can we verify the approved fitting and penetration arrangement before fabrication?