Any wood worm experts on here?

[Pigeon_Droppings2]

still have the design drawings showing wall and floor build ups if you want them.

Yes please ....I need all the help I can get

 

[addjunkie]

Pm me an email address and Ill send them over from my pc. I will say cutting and fitting the king span is a slow tedious task!

 

[addjunkie]

I've also discovered aerogel recently...very expensive but a 15mm sheet is similar I think to 75mm+ of regular insulation...handy when needed.

Good around window reveals and stuff.

 

[chrismac]

Stone buildings require a very different approach to vapour management.

From what I've read you "can" have an impervious inner insulation wall if there's a vented cavity to allow the stone to breath. But internal moisture levels need to be managed...maybe with an mvhr.

It's so complex I think I'll probably consult an expert before I do anything....I'm still a few months away from it being a problem I have to fix!

whats the thoughts on open cell foam sprayed internally , a guy I was speaking thought it was a good idea on an older property, I know about the horror stories of the botched roofs and so on with closed cell spray. This seems interesting, and I am also mid total renovation of a stone house.

 

[addjunkie]

whats the thoughts on open cell foam sprayed internally , a guy I was speaking thought it was a good idea on an older property, I know about the horror stories of the botched roofs and so on with closed cell spray. This seems interesting, and I am also mid total renovation of a stone house.

Google say..be wary

Potential disadvantages

• Lower R-value: The lower density means it provides less insulation per inch compared to closed-cell foam.
• Moisture permeability: It is not a vapor barrier and can absorb moisture, which could lead to problems like mold or structural damage if not properly managed.
• Suitability: Not recommended for high-humidity environments or applications where a vapor barrier is necessary.

 

[Pigeon_Droppings2]

whats the thoughts on open cell foam sprayed internally

Whenever I hear about a quick fix my first thought is...if it doesn't work then how difficult would it be to remove?

I've found chat gpt very useful for research...if you give it the house location it can even check soil conditions!

From my reading so far the choices seem to be either a separate insulation wall (with vented air gap for the stone side) or breathable direct to stone coatings which are mostly lime based and are permeable.

I've not got a full understanding yet but I think (in general) the permeable insulations aren't as effective (like for like thickness).