Tore off boards and found mold - next step?

[irisdotter]

I'm demolishing a bathroom where I noticed a small growth by a pipe, Anticimex measured the humidity level and said it was dry and fine. I felt relieved. It could have looked fine when I was demolishing it.
But of course not... In another spot, green mold appeared on one stud and faint black on another. See pictures.

I'm stuck... What's the next step? It looks like the studs have a load-bearing function, which makes it difficult for me to replace them myself. My first thought was to replace all of them. Or is there another way?

 

[RobZombie]

Is the wood rotten or is it just surface mold?

Otherwise, just spray on an appropriate mold killer and leave it be.

 

[irisdotter]

The timber felt fresh when I tested it with the knife.

 

[EndZone]

Agree with RobZombie. After determining how widespread the damage is, you can treat it with mold killer if the wood itself is not damaged. But be careful and check how extensive the damage is.

 

[AndersS]

That is nothing to worry about, and it is also on the opposite side of the rule from the bathroom as seen from the bathroom, so it does not come from moisture from the bathroom.

 

[shadowfire]

That didn't look particularly dangerous, if the other beams are just healthy (stick a knife in them and see) then I would have just brushed on anti-mold agents and done the construction. Bor-ex etc. penetrate deep into the wood so you stop the mold, which is, after all, a living fungus. Be careful to let it dry properly so you don't build in moisture.

 

[irisdotter]

Sounds quite harmless. The knife is nicely positioned in the studs. Time to buck up and take action. I'll check out mold killer.

 

[AndersS]

Sounds pretty harmless. The knife sits nicely in the studs. Time to perk up and implement measures. Going to check out mold killer.

If you look, you won't see anything on the insulation; it's very nice, so if it's an older timber-framed house, the black could even have been there already when the house was built. Not uncommon to see that in houses from the '60s and earlier.

 

[Snuslisa]

If you can get hold of a steam cleaner, it's an excellent way to mold remediate

 

[irisdotter]

Thank you for the answers. Definitely reassuring.. today I received some expert help that confirmed your thoughts. The black part has most likely been there since it was built and is probably just concrete residue. So the money I saw flying away yesterday I have now saved as I can happily continue myself. How one can save money they never intended to spend.

 

[shadowfire]

If you can get hold of a steam cleaner, it's an excellent way to clean mold

hmm, with just a water solution? i.e. adding even more moisture to wood? this is something I haven't heard of except in bathrooms.

 

[irisdotter]

I'm glad I don't have to think in saneringsbanor at the moment.

 

[AndersS]

Never attempt to renovate an older summer cottage. They often used what was leftover or what was readily available. But that was part of the time and adapted specifically for summer cottages.
It doesn't necessarily mean it doesn't work, but what creativity.