The product-versus-system gap
A sealant, wrap, collar, mortar or board can be one component inside many tested systems. Compliance depends on how that component is used in a defined assembly.
Why site conditions drift
Design drawings rarely capture every final cable bundle, insulation change, oversized opening or late service. An opening survey and deviation route convert those changes into visible decisions.
What a defensible handover proves
The close-out should connect each location to its configuration, selected system, materials, installer, inspection status, photographs and accepted deviations.
What to verify
- Identify the wall or floor construction and required rating
- Record every service, size, insulation and support condition
- Match opening and annular dimensions
- Check movement, environment and access
- Control material, batch, installer and location
- Inspect and close every deviation