clkuas 0 Report post Posted December 6, 2016 (edited) Hi all! recently got the keys to my new place and I noticed that these marks are all over every single wall. Looks like water marks but the patterns are so "regular". Before I start renovating, would want to troubleshoot this in case it requires serious work. Anyone encounter or can diagnose these stains on the walls? My ID and I have scratched the walls and made sure they are not plasters. I have also contacted the previous owner who has encountered the same issue and she repainted the walls. However the marks came back shortly. Edited December 6, 2016 by clkuas Share this post Link to post Share on other sites
Terradyne 27 Report post Posted December 29, 2016 Looks like marks cause by heat, its your wall facing direct sunlight? 1 Share this post Link to post Share on other sites
federick1 0 Report post Posted February 15, 2017 I think it is something due to humidity. It seems like some wet wall around. Share this post Link to post Share on other sites
