Safe lifting and placement
Use specified lifting points, rigging and module weights. The crane plan should account for radius, ground bearing, wind and set order.
Only essential trained personnel should work within the controlled area. Stop conditions should be defined before lifting begins.
Permanent structural work
Modules must be aligned, anchored and connected to each other and the foundation. Temporary bracing remains until the engineered load path is complete.
Field modifications to resolve misalignment require designer review when they affect structure or approved details.
Closing the marriage line
Crews complete insulation, air sealing, vapour or water control, roofing, siding and interior finishes at module joints.
Connections for wiring, plumbing, ducts and controls need testing. Hidden marriage-line work should be photographed before closure.
Apply this guide to a real project
For crane set, structural connections and marriage lines, create a dated project note tied to the destination address and current drawing revision. Identify the authority, designer, factory or contractor responsible for each unresolved item. Attach the written evidence for ‘Are final module weights and lifting points in the crane plan?’ and ‘Who inspects structural connections before concealment?’ rather than recording a verbal assurance.
Before a deposit, production release, shipment or final payment, convert every open question into a named action with an owner and deadline. Keep superseded drawings and decisions in the record so later inspectors, lenders, insurers and future owners can understand why the completed house differs from an early sales plan.
Questions to resolve before proceeding
- Are final module weights and lifting points in the crane plan?
- Who inspects structural connections before concealment?
- How are air, water and thermal layers continued?
- What testing verifies cross-module services?