Written approval before a tile scope change
Written change approval is the rule for a change you direct, such as a different tile, a different pattern, a different edge, or a larger area of removal. The scope changes only when that change is written and accepted before the work changes. A verbal aside on site does not approve it. The original pages keep governing until the amendment exists.
Directed changes are not discoveries
An owner choosing a new layout is not the same event as uncovering a rotten subfloor. The discovery needs a stop-and-rewrite rule because the assumed assembly was wrong. The directed change needs an amendment because the owner wants different work than the pages describe. Mixing the two lets a preference ride along as if it had been hidden in the floor.
What the amendment has to restate
The amendment should restate the lines it touches: the new product identity, the new pattern and waste, the new edge, or the new limit of removal, plus who furnishes the added material. A note that only mentions a conversation does not restate them. If the conversation cannot be copied into those lines, the change is not ready to accept.
Acceptance comes before the work changes
Written approval is that acceptance, and it has to exist before the crew changes the work. Acceptance comes before the crew acts on the new instruction. Tile already set to the old pattern cannot be pulled back into the old document by a note written the next day. If you are still deciding, the scope should say the affected area waits. Waiting is a sequence. Starting, and writing it down later, splits the floor from the pages that were supposed to describe it.
Related Costa Tile Works services: Bathroom tile installation, Floor tile installation. See all services, service areas, and all guides.