Is this normal for an outdoor roof?

[UTH]

This is the inside of a couple of patches of the roof of the outdoor kitchen......is this normal as obviously it's outside, or despite that should this not be appearing?

[Rough101]

It’s mould, my shed gets like that if I don’t bleach it, but odd that it’s happening in an undercover area with the wind blowing through it though

[UTH]

Rough101 said:

It s mould, my shed gets like that if I don t bleach it, but odd that it s happening in an undercover area with the wind blowing through it though

Ok I did think it would be mould of some sort.
Anything to worry about? Basically I'm hoping it's not a sign the felting of the roof has been done badly? Should I be doing anything about it?

[phazed]

Could also be that the ply was contaminated in that area with some sort of dirt. That will attract moisture and lead to condensation.

Strange construction with that trellis detail. Photo from the outside?

[UTH]

phazed said:

Could also be that the ply was contaminated in that area with some sort of dirt. That will attract moisture and lead to condensation.

Strange construction with that trellis detail. Photo from the outside?

[paulwirral]

Underneath the cooking facilities by chance ?

[UTH]

paulwirral said:

Underneath the cooking facilities by chance ?

Yep, the worst patch is absolutely.

[paulwirral]

UTH said:

Yep, the worst patch is absolutely.

I’ll correct myself , above the cooking area !
I wouldn’t worry about it , bleach it off if your fussy , mine looks a bit scruffy above the bbq so one day I’ll fashion a chimney to divert the smoke out

[Tisy]

That's the moisture/steam from the stuff you're cooking collecting on the wood and then producing mould. Move the cooking thing outside out of structure or give it a hood and a flue and divert it elsewhere, or put a hole through the roof with a couple of foot of chimney out the top. Mould problem sorted.

[UTH]

Tisy said:

That's the moisture/steam from the stuff you're cooking collecting on the wood and then producing mould. Move the cooking thing outside out of structure or give it a hood and a flue and divert it elsewhere, or put a hole through the roof with a couple of foot of chimney out the top. Mould problem sorted.

Hmmmm, not convinced any of those is realistically an option.
I thought it was very common place for people with big green eggs and outdoor kitchens to have a setup like this......

[Snow and Rocks]

I'm not a great fan of "man made" materials like ply or mdf at the best of times especially in outdoor environments, they never seem to age very well but this stuff is pretty good at dealing with any organic growth on external surfaces.

I believe it's the same stuff that's in Patio Magic that you see in normal DIY stores. This is just obviously much cheaper as you dilute it yourself. Be careful and use appropriate PPE as it's pretty strong stuff.

https://www.amazon.co.uk/Benzalkonium-Concentrated...

[UTH]

Snow and Rocks said:

I'm not a great fan of "man made" materials like ply or mdf at the best of times especially in outdoor environments, they never seem to age very well but this stuff is pretty good at dealing with any organic growth on external surfaces.

I believe it's the same stuff that's in Patio Magic that you see in normal DIY stores. This is just obviously much cheaper as you dilute it yourself. Be careful and use appropriate PPE as it's pretty strong stuff.

https://www.amazon.co.uk/Benzalkonium-Concentrated...

Ahhh thank you, guessing I just need a spray bottle type thing and spray a mist onto the affected area?

[Snow and Rocks]

Yep, just spray or brush it on and leave it. Takes a while but generally works pretty well.

Buying the premixed patio magic might make sense for such a small area.

Like I said, be careful it's quite strong stuff.

[UTH]

Snow and Rocks said:

Yep, just spray or brush it on and leave it. Takes a while but generally works pretty well.

Buying the premixed patio magic might make sense for such a small area.

Like I said, be careful it's quite strong stuff.

Ok thanks, good to know I have options if I can't stand the sight of it