Cavity wall damp

[richardmm]

evening during the renovation we have decided to use external wall insulation as the house gets cold and it will create a nice texture from the outside. The builder has quoted around £9500.

However I got questions

People say ewi isn't suitable for cavity walls but my house is solid wall but the kitchen has a very small gap in the middle of the two bricks (the gap is less than a normal cavity wall gap) and the brick measures more than 9 inch so that mean it not solid. I also know this because I used to hear mice creep up the inner walls theogh the air bricks. Note, the house never been extended. it is 1925 house.

Does that mean I got a cavity wall or not? One of the builders said some bricklayers used to brick houses like this but I am not sure if it's true or not?

please let me know
Richard

 

[Jurassicspark]

There are houses built in Stretcher bond that are solid, just as there are cavity walls built in Flemish bond.

I won't class it as a cavity though. One of my neighbors had EWI installed on an extension which was a cavity. Doesn't really serve a purpose but I think he wanted to match it with the rest of the house.

 

[richardmm]

thank you googled it now looks like my wall is stretcher bond the wall has a slight gap in the middle but I can always add cavity insulation to it along with ewi As the room does get cold in winter! the wall measure around 10.7 inch btw

I don't want to waste money installing the ewi on the kitchen if it doesn't need it. The rest of the hoise is solid brick.