Pressure Treating Hardwoods

[Wendelspanswick]

Anyone have any info on pressure treating hardwoods?

The reason I ask is I am looking to clad the outside of a barn I am building and I have an abundance of Ash I could mill and use but it's not durable.

[Nick Connell]

As far as Iam aware the pressure treatment doesn't penetrate far enough to be useful that's why most things treated are soft wood.

[Big J]

I agree with Nick. Mill the ash, replace it when rots.

[Wendelspanswick]

Out of interest any idea what pressures and duration they use to treat timber and what chemicals they use?

[briquette_seller]

Cant you just treat it with creosote?

[Wendelspanswick]

I was thinking of something that wouldn't affect the colour of the timber too much and stink to high heaven!

[Wendelspanswick]

Ideally I could do with swapping some of my Ash butts with some WRC/Oak/Sweet Chestnut/Larch butts in the Somerset area.

[se7enthdevil]

I was thinking of something that wouldn't affect the colour of the timber too much and stink to high heaven!

 

it would turn grey anyway (or the colour of the pressure treatment) so you may as well creosote it or if you wish the preserve the natural colour you'll need to find a good timber to use.

 

can you find any robinia or true cedar?

[SteveA]

Anyone have any info on pressure treating hardwoods?

The reason I ask is I am looking to clad the outside of a barn I am building and I have an abundance of Ash I could mill and use but it's not durable.

 

I've been recently introduced to this stuff.... 'Swedish far' or 'pine tar', or whatever it's officially called??

Not bought or used any myself yet but it does smell nice.

 

http://www.solventfreepaint.com/pine-tar.htm

 

Could be worth further investigation....

cheers, steve

[Wendelspanswick]

I don't mind if the timber goes silver/grey, not keen on the dark colour (or stink) of creosote.

We have about 8 acres of woodland, 90% is Ash with the rest made up of Sycamores, ancient Beech trees (with TPO'S), Birch and the odd Oak, Cherry and Holly.

I need to find enough timber to clad 140m2.