i'm sensing we could do with a d*mp section
I worked for a damp coursing firm years ago and the blokes who used to do the chemical injection never did it properly ,instead of injecting the bricks until saturated they would just give the drilled holes a quick splash with the fluid. i am sure lots of firms used to do this and may explain why a lot of damp courses fail.View attachment 927
Well it's a party wall terrace house solid 9" wall both breast have been removed . The problem of spoiling plaster is due to were the breast have been remove. It has sometime in the past had a injection but not worked for what ever reasons.
I am going to remove the section of brick work were each breast has been and insert dpc strip to this area. Here is a pic of heavy soot which the T***s renderd over it is just boxed in this area.
The thing is twitcher this row of bricks is fecked cut out plastic strip blue bricks job sorted. If I tank the wall then all of the render will have to come off then I could tank the wall. I intend to use renderlit backing plaster I know this gear is good alows the wall to dry out. unlike a strong s+c backing coat trapping the moisture still in the brickwork.
Thing is Henry, and I know you are aware of this, if you put in a new physical plastic Dpc you will have to put it in as far as you can. Ie up tp the next door neighbours plaster (225 or whatever) because if you subscribe to the theory of rising damp it will rise on your neighbours side of the wall and back into your customers side ( which is obviously bollixlol) if you don't.
Prob is likely to do with salts, soot etc in old chimney breast wall
View attachment 925 View attachment 926
I've got something similar I think that I've got coming up.
It's happening on 3 internal walls, the externals been chemically treated years ago and that's fine.
They told me that they didn't have any d*mp problems with the old wooden floor that was there. It was only when the floor had been concreted that they had problems, which means the DPC has been bridged by the floor.
you play conkers with irish?? neutralise the salts as you said tank and renovation backing skim finish, theres many different ways to skin a cat its just finding the right one for said situation, but im not as clued up on the whole damp situation as the likes of irish, i merely sub off of a contractor, who subs off a damp firm and i follow the spec
neighbours house I am told is very damp and rented both breast are still in, do not know if they still full on the sides with infill
from when old coal fire was used. Not sure about floor level. The one am working on is solid floor put in sometime in the past.
The effected area seems to stem from bottom course of bricks were the breast was. The salt is showing in this area about 2' up the wall in this area.