22/10/2026
🏠 Dark lines on your ceiling? It might not be dirt or mould!
Ever noticed grey or black marks following the ceiling beams in your home? It could be thermal tracking.
We explain what causes it, why it happens and what you can do about it in our latest Painting Advice blog.
👉 Read more on our website: https://www.prowsespainting.com/post/thermal-tracking-on-ceilings-and-walls-what-causes-those-dark-marks
Noticed dark lines or shadowy marks on your ceiling? Learn what causes thermal tracking, how to identify it and what Canberra homeowners can do to fix it.