So today had a builder out (for quote_and he said something surprising about dry rot and fill

[CalvinHobbes]

He said to get clean coarse stone that comes out of a quarry to stop transferring the dry rot in the old cottage into the new build, he said it comes up over the side. He also said I could use the cottage rubble for the driveway.

Thinking now - the new house won't have a wooden frame, it is block so surprised.

[Radian]

Sounds like knowledge gained through experience. I'm quite impressed.

[CalvinHobbes]

 

So was I. He said he knew of people who had dry rot 20 years after building and so regretted it. He specifically said it could be in the block. 

 

[Radian]

As the most serious form of fungal decay in timber, I wouldn't take any chances if you know it was present.

[Bonner]

Fungal spores are all around us, there is no avoiding it. Despite its name, dry rot only grows in damp timber so you shouldn’t have a problem in a well designed house. Having said that I would feel more comfortable with clean stone under the house.