The people who maintain, alter and eventually demolish a building need to know the risks that were left in it. Tie that information to the elements in the model and the asset register, not to a binder nobody opens.
When the contractor leaves, the risks they managed don't all leave with them. Some stay in the building: a heavy fan to replace on a roof, a confined tank, a fragile rooflight, a material that needs care when drilled. In the UK the client keeps this in the health and safety file. Most countries have something similar. What matters is that the person doing the work finds it.
Asset information (tags, manufacturers, serial numbers) is collected from installers and checked at milestones. Health and safety information can travel the same way: as properties or linked documents on the assets and spaces, checked with the rest.
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