Damp spreading
- Thread starter mark121
- Start date
Bauwer
Well-Known Member
The approach do damp handling is different in modern and older, traditionaly built propoerties. You might be interested in our recent publication on this topic:
https://greenbuilding.co.uk/insulating-masonry-walls-of-old-stone-cottages-and-listed-buildings/
vfr12
MOTORC*NT
more than you bargained for
just having a look now ...will have a proper look tonight ..i guess its difficult as everybody is a expert and also wants to sell there products on a very competitve market.
Is it a plasterer and where did you get his details? Just interested x
Bauwer
Well-Known Member
Hi Mark, sure, you are absolutly right.
But selling our material we meet customers who deal with impermeable materials installed in their tradtiaonlly built homes with the outcome being trapped moisture.
The physics process is not that complex, let me try to explain based on this example - if you run and use impermeable plastic coat - it would be soaking wet on inside as vapour generated by your body would not be able to escape. if you would use permeable jumper, you are likely to stay dry. that's the way how tradittionally built propoerties work, which are typically built before 1919 with solid stone or brick walls without cavities.
Modern buildings with cavities operate a different scenario, DPC, memebranes, vapour extraction....so no need for brethability really.
But those two construction method can not and should not be combined.
There are many brethable materiasls on the market as well, not just Bauwer.
There you go a simple answer to a question....
vfr12
MOTORC*NT
He is a russion. Think twice !
A.plasterer
Private Member
Meanwhile here on the costa it's a nice dry 26c today 
Danny
-
Thank you for your enquiry and patience.
Lots of interesting pictures. It would be interesting to see the outside as you mention that the grass comes right up to the wall, but you don’t mention the ground level. It could be a tanking situation.
The first picture has a caption saying that the damp was coming through only two weeks after replastering. It looks like the wall has already been painted, so the damp could be residual moisture from the plaster that is behind the paint. We can’t be certain, but it looks like a gypsum has been used (this is based largely on the colour). If gypsum has been used then this is very susceptible to moisture damage. The previous plaster may have been lime based given that the apparent age of the cottage.
The first thing that needs to be checked is the ground level and Drybase Flex or a slurry used for the below ground section of wall. Dryzone or Dryrod then needs to be installed in the mortar above the ground level. As the mortar lines are irregular the spacing should be reduced to 100 mm. Replastering with either the Damp Resistant Plaster (preferred if substrate is strong enough) or Hi-Lime and then allow the wall to dry for as long as possible before redecorating.
The key question is where is the moisture coming from? Is it rising damp or is it penetrating damp?
Lots of interesting pictures. It would be interesting to see the outside as you mention that the grass comes right up to the wall, but you don’t mention the ground level. It could be a tanking situation.
The first picture has a caption saying that the damp was coming through only two weeks after replastering. It looks like the wall has already been painted, so the damp could be residual moisture from the plaster that is behind the paint. We can’t be certain, but it looks like a gypsum has been used (this is based largely on the colour). If gypsum has been used then this is very susceptible to moisture damage. The previous plaster may have been lime based given that the apparent age of the cottage.
The first thing that needs to be checked is the ground level and Drybase Flex or a slurry used for the below ground section of wall. Dryzone or Dryrod then needs to be installed in the mortar above the ground level. As the mortar lines are irregular the spacing should be reduced to 100 mm. Replastering with either the Damp Resistant Plaster (preferred if substrate is strong enough) or Hi-Lime and then allow the wall to dry for as long as possible before redecorating.
The key question is where is the moisture coming from? Is it rising damp or is it penetrating damp?
A.plasterer
Private Member
Meanwhile if this was your neighbours you might 
Drove past this today
Drove past this today
A.plasterer
Private Member
Have they relocated 
You were crying like a bitch the other week lolyou dont ?? Did you think i did ? its being rented out
Oh and also that answer was given on the 1st page!!!
A.plasterer
Private Member
bopper
Active Member
Mark you have wasted more than enough of our time,I got the jist of you about two pages in!is there any wonder you are getting s**t from other forum members.do your self a favour stick your hand in your pocket ye tight arse and pay somone to sort out your property,it could do with it!the whole lot in and out!!!
He has already wasted time and money and is back at square one lol
A.plasterer
Private Member
Abbiejohn
New Member
use the gypsum half below on wall and nothing is the best option and moisture problems is also solved and according to damp surveys Hampshire damp cause of many diseases in children like a
cough, eyes problems ...
irish_spread
Private Member
The clown is back