Mold "new" patio

[MarkusNilsson9494]

Hi!
Recently moved to a house with a newly laid (larger) deck in 2021 (13x3). After 2 very humid months in southern Sweden, I have noticed mold appearing in several places. Worth mentioning is that most of the deck is covered by a roof. The wood is pressure-treated, so this shouldn't happen? What should I do now? Clean and treat it in the spring with something? Is there anything you recommend?
Best regards

 

[Jonatan79]

Try scrubbing with a root brush, some mold always appears on such a structure sooner or later regardless of whether it's treated with impregnation or not. Typically, impregnation isn't used on roofs otherwise…

 

[InsidersUnited]

It has very little "green" in it for being freshly cut lumber. It's not heat-treated or otherwise impregnated?

 

[Anna_H]

Unfortunately completely normal.

 

[peteds01]

Hello!
Recently moved to a house where a new (larger) deck was laid in 2021 (13x3). After 2 very humid months in southern Sweden, I see mold has appeared in several places. Worth mentioning is that there is a roof over most of the deck. The wood is pressure-treated so this shouldn't happen? How should I proceed now? Clean and treat in the spring with something? Is there anything to recommend?
Regards

No problem with this black mold.
Just wash it off, mix YES dish soap + bleach in the cleaning water, let it sit for a while, rinse off.

 

[pacman42]

Unfortunately, completely normal.

Exactly. That's how it always looks on the west coast at least...

 

[Aunty]

Don't quite understand what you mean?
Pressure-treated doesn't protect against mold.
It will mold like other wood under the "right" conditions.

 

[raveper]

A little soft soap scrubbing every spring and it will be fantastic by summer.

 

[Villa Spinell]

Hi!
Recently moved into a house where a new (larger) deck was laid in 2021 (13x3). After 2 very humid months in southern Sweden, I see that mold has appeared in several places. Worth mentioning is that there is a roof over most of the deck. The wood is pressure-treated so this shouldn't happen? What should I do now? Clean and treat it in the spring with something? Is there anything to recommend?
Kind regards

Boracol

 

[warthog]

The top image is of a printed board...and it's completely normal if it turns out that way...it disappears over time...images two and three seem to be organowood...that is, impregnated with silicon...the first few years, organowood will look terrible...with black mold spots and "fuzz" on everything...also completely normal and disappears over time...