Damp joist why and what can I do about it?

[Deleted member 292770]

Damp ?
That’s where the timbers were treated before installation.
Class

 

[Deleted member 292770]

damp? no.

 

[^woody^]

Damp ?
That’s where the timbers were treated before installation.
Class

Treated on site in 1910?

Endgrain capillarity does not mean the penetration is even. Plus there is no evidence that damp is coming up, so the bottom of joists may well remain drier.

 

[Deleted member 292770]

Treated on site in 1910?

Endgrain capillarity does not mean the penetration is even. Plus there is no evidence that damp is coming up, so the bottom of joists may well remain drier.

sure he said ‘I have a 1970’s house’
Can’t think why they’d have built it using 60 year old timbers.

 

[^woody^]

sure he said ‘I have a 1970’s house’
Can’t think why they’d have built it using 60 year old timbers.

LOL. I am referring to another thread.

But perhaps they did use a job lot of pre-war timbers.

 

[Deleted member 292770]

LOL. I am referring to another thread.

But perhaps they did use a job lot of pre-war timbers.

And pre-war poly beads maybe. the porous type.

 

[JP_]

Could a leak in/over a wall saturate all the bricks, with the damp course stopping the water getting to the ground? That could explain it ... water pooling above the DPC ...

Just throwing an idea in.

 

[JohnD]

IIRC, back in 1970, they used to fill the cavity up to DPC level with concrete. To resist crushing of the wall by ground pressure, I think.

 

[Deleted member 292770]

IIRC, back in 1970, they used to fill the cavity up to DPC level with concrete. To resist crushing of the wall by ground pressure, I think.

no chance . I refuse to believe mankind is actually that stupid. Although they did see fit to fill walls with wool. So , show us a picture.

 

[Deleted member 292770]

am assuming this could cause issues in the DPC area?

no

 

[JohnD]

Could a leak in/over a wall saturate all the bricks, with the damp course stopping the water getting to the ground? That could explain it ... water pooling above the DPC ...

Just throwing an idea in.

very rarely, a pipe, perhaps an overflow, can leak inside a cavity.

 

[Nige F]

So you think you can tell........a green field from a cold steel rail.....rotting wood from creosote. Can you tell, tell ? tell us, tell

 

[BarnabyT]

I'm with Godwas on this one. My house is identical and its preservation fluid.

 

[^woody^]

IIRC, back in 1970, they used to fill the cavity up to DPC level with concrete. To resist crushing of the wall by ground pressure, I think.

Filled to two course below DPC.

 

[Maryas]

Looks like wood preserver to me. 20 quid spent on a damp metre would answer it for sure.