Help Needed to Identify Dark Stain on Floor Joists Damp can be a major issue in the home. Find answers to questions or post your own here.

[malB45]

Hi

Looking for help to identify dark stains on edges of floor joists in images attached, is this a sign of damp ?

thanks

[malB45]

img 1

[malB45]

attached image

[Jarek]

Hello
If on side is external wall it might be damp. But to be sure please just use damp meter.