A replacement creates a new starting condition in an older setting.
Record what changed
Identify which boards were replaced, when and with what documented product. Do not assume the new material matches the original species, machining or coating because the invoice uses a similar trade name. Keep the existing finish history and the replacement details together.
Avoid a colour deadline
A prediction that the new board will match by a certain month can create an expectation unsupported by evidence. Shelter, finish history and starting appearance may differ. Ask the supplier what product-specific information is available and distinguish experience from a guarantee.
Choose the scope of the appearance decision
Discuss whether the contrast is acceptable, whether a sample review is useful, or whether a broader finish plan should be considered. Do not extend replacement work solely to chase a photo-perfect match without documenting the cost and scope decision through the appropriate commercial process.
- Identify replacement locations
- Record old and new finish history
- Agree acceptable contrast
Evidence & scope
Surface weathering research (2020), not a forecast for a supplied board or a structural assessment.
Original planning guidance. References support their stated technical scope; examples and workflows do not establish product approval.