Authorities in Finland advise against the use of pressure-treated

[Pilgrimen]

https://tukes.fi/sv/-/undvik-onodig-anvandning-av-impregnerat-tra-

Interestingly, they advise using a respirator and protective gloves when using pressure-treated wood. Is this something that is talked about in Sweden?

 

[Huddingebo]

Do they use the same chemicals for impregnation in Finland?

 

[ikeo]

is it impregnated in the same way?
It might be that the impregnation that is banned in Sweden is still allowed.

 

[Thomas_Blekinge]

I have been preaching for many years that treated wood is often used unnecessarily. Just because the wood might be exposed to rain doesn't mean it will rot away quickly. If the construction is good (drainage possibilities, ventilation, protected end surfaces, no possibility for dirt to accumulate, etc.), untreated wood can last for many years. A sandbox made of untreated wood lasts as long as there is a need. Then it can be used as firewood. PS: we have learned from the Corona threads that the breathing mask doesn't work. Finns should read them to build up knowledge!

 

[Zachtionman]

Impregnated wood is not recommended for the following
– supporting decking structures that are above ground

That's a deck I wouldn't want to walk on after a couple of years

A lot of strange formulations that don't really mean anything, like this: "The lifespan of untreated wood is often sufficiently long." Sufficiently long for what? For you to get tired of the color and want to switch to different timber? You use pressure-treated wood precisely so that it lasts as long as possible and to avoid buying new material, which benefits both the climate and the wallet.

 

[Thomas_Blekinge]

I wouldn't want to walk on that deck after a couple of years

A lot of strange phrases that don't really mean anything, like this: "The lifespan of untreated wood is often sufficiently long". Sufficiently long for what? That you'd get tired of the color and want to switch to different wood? You build with pressure-treated wood precisely because it should last as long as possible and avoid buying new material, which is beneficial for both the climate and the wallet.

I have built deck frames with untreated wood (including decking) that lasted for ten years and more. No problems. After that, you can replace damaged parts and use them as firewood. You can't do that with pressure-treated wood.

 

[Jonatan79]

Just a myth that the unprinted have a much shorter lifespan than the printed. Swedes should follow John and not think for themselves, we are raised for that and probably world champions at it!

 

[Plupp 282191]

Just a myth that unprinted has a much shorter lifespan than printed. Swedes are supposed to follow John and not think for themselves, that's what we are raised to do and probably world champions at!

I agree...with....

 

[Nissens]

I have built deck frames in untreated wood (including decking) that lasted ten years and more. No problems. After that, you can replace damaged parts and use them as firewood. You can't do that with treated wood.

10 years?? My deck is in quite okay condition after 20 years. I haven't replaced anything, but I'll probably replace the decking next season. The old one will go to the recycling center, and I'll arrange firewood in another way.

Glad I built with treated wood, otherwise, I would have had 10 years of maintenance behind me now...

 

[Nissens]

Just a myth that untreated has a much shorter lifespan than treated. Swedes are supposed to follow the leader and not think for themselves, that's how we're raised and probably world champions at it!

You can use untreated wood if you feel like it, it only affects you.

I have long experience with both treated and untreated wood. In the past, hunting towers were usually built with untreated wood; for about 20 years now, I have only built with treated wood. Suddenly, the maintenance need for the towers disappeared.
This is only because the treated wood lasts incredibly much longer than untreated. This is my own experience, so I KNOW it's true.

It's pure nonsense to think that treated wood is used because of some kind of herd mentality... it's about knowledge.

 

[z_bumbi]

Respirators should be used during all mechanical sawing and sanding of wood, so it's nothing strange. No, I don't do it either... foolishly enough.

Of course, it's possible to build a deck that lasts 30-40 years without factory impregnation. But the question is whether people are willing to do the work at the pace that would require, and if, in turn, it is better for the environment.

 

[Nissens]

Then, of course, it's possible to build a deck that lasts 30-40 years without factory impregnation. But the question is whether people are prepared to do the work at the pace that it then requires and whether in turn it is better for the environment.

Yes, if you use concrete or some other material than untreated spruce/pine, it's possible.

Alternatively, if you have the deck indoors...

 

[Okarlsson]

Although they write in the link that the patio floor should be pressure treated. They write that patio posts without ground contact are suitable as untreated. I can accept that. If you treat a vertical patio post, it will probably last many decades.

 

[Peter787]

Just a myth that unprinted has a much shorter lifespan than printed. Svennar should follow John and not think for themselves, we are raised to do that and probably world champions at it!

I built a deck 30 years ago, it still looks new, but I used NTR M-class pressure-treated timber

 

[sunqan]

I built a deck 30 years ago, it still looks new, but I used NTR M-class pressure-treated wood

Since there are no approved wood preservatives for ntr-m in Sweden today, one might wonder what you're getting into