When are joints around windows and door frames typically filled?

The filling of joints around windows and door frames is typically done after priming because this allows for a smooth and secure base for further finishing. Priming is essential as it helps seal the surfaces and provides better adhesion for the filler material. This process ensures that the filler adheres properly and that the finish is uniform and durable.

When joints are filled after priming, it ensures that any gaps are effectively sealed before the final coats of paint or other finishes are applied. This step is crucial in preventing moisture intrusion and enhancing the longevity of the paint or finish applied later.

In contrast, performing this action before painting, after caulking, or after measuring does not necessarily provide the same level of effectiveness in ensuring that the filler material bonds well and integrates seamlessly with both the primed surface and the eventual finishing layers. Therefore, timing the filling of joints correctly in relation to other preparatory steps is key to achieving the best results in painting and finishing work.