Rising Damp – Production Recommendation
We've noticed some rising damp around a window after this winter. I've looked up solutions, and it typically involves removing the plasterboard and applying treatments. It's not something I'm keen on tackling at the moment. I vaguely remember seeing a product a while ago that involves sanding off the layer of paint in the affected area, applying it, and then painting over it again. Has anyone used a product like this that they can recommend?
Buy a copy of the The Ultimate Guide to Heat Pumps
Subscribe and follow our Homeowners’ Q&A heat pump podcast
Hi @editor, a lot of damp is mis-diagnosed as rising. Often it is penetrating damp through the fabric, common in older solid wall properties in the corners of rooms and around (ironically) well sealed airtight windows where lower local indoor air temperatures can reach dew point and form moisture on the adjacent walls promoting mould growth. Can also be damp from excess internal moisture that is condensing on cooler external walls. Be wary of applying internal or external damp treatments - they can prevent the fabric of the building from breathing and naturally drying. I would recommend a specialist check moisture levels for you and recommends a treatment. Have you high humidity inside the room where there's damp?
Yet another topic I'm not an expert in. Nonetheless, there is something that might be of interest or use.
Some friends of ours had a bit of a damp problem in one room of their Victorian house and spent some significant amount of time and effort researching and getting advice. A lot of that advice involved removal of plaster and injection of a chemical damp proof course at considerable expense. One surveyor, however, who happened to have a lot of experience with heritage buildings and had done a fair bit of work with the National Trust felt the answer to their issue lay in working with the way the building was originally designed. The suggestion given was that they should remove the soil from next to the outside face of the offending wall and then fill that trench with gravel so as to provide quick drainage. That is what they did and the damp problem disappeared.
I hasten to add that was a different property and perhaps even a different problem so I'm not suggesting a solution per se. However, it does feel to me that a bit of work minimising the ability for the moisture to get into your wall instead of some barrier to stop the moisture moving from your wall into your plaster might be a more productive line of enquiry.
105 m2 bungalow in South East England
Mitsubishi Ecodan 8.5 kW air source heat pump
18 x 360W solar panels
1 x 6 kW GroWatt battery and SPH5000 inverter
1 x Myenergi Zappi
1 x VW ID3
Raised beds for home-grown veg and chickens for eggs
"Semper in excretia; sumus solum profundum variat"
- 26 Forums
- 2,197 Topics
- 48.4 K Posts
- 27 Online
- 5,854 Members
Join Us!
Podcast Picks
Latest Posts
-
RE: Why Air Release Valves and Deaerators are Non-Negotiable
We have air release valves - the automatic ones with th...
By Old_Scientist , 4 hours ago
-
RE: Heat Pump Installers: Competence, Illusion and the Hard Truth Homeowners Must Face
@editor Agreed, I await the details of what went wrong ...
By ASHP-BOBBA , 5 hours ago
-
RE: Large heat pump options for church building
I wonder if this is a project @aventus-eco would be int...
By Mars , 6 hours ago
-
RE: Help me keep the faith with my air source heat pump installation
@dgclimatecontrol yes the wall fixings are mostly aroun...
By AdamK , 6 hours ago
-
RE: Rodents! A word of warning for heat pump owners
@lucia, I hear you on the lagging and insulation front....
By Mars , 7 hours ago
-
@majordennisbloodnok And of course, ‘No deliveries betw...
By Toodles , 12 hours ago
-
RE: RDSAP10 effect on existing heat pump EPC rating?
@mike-patrick interesting! Funnily enough we've just ...
By Tim441 , 13 hours ago
-
RE: Do I just go with the lowest quote for my heat pump?
@jancold 😆 Toodles.
By Toodles , 15 hours ago
-
RE: Moving FIT array onto a Tesla Powerwall 3 possible?
@judith The PW3 can accept AC or DC inputs. Regards, To...
By Toodles , 15 hours ago
-
RE: DESNZ doing a survey which asks the right questions!
Its great to hear of your approach and success with the...
By JamesPa , 20 hours ago
-
RE: Samsung Gen 6 - Schedules not working
@old_scientist Yes they are. Ive found a detailed discu...
By bontwoody , 1 day ago
-
RE: Testing new controls/monitoring for Midea Clone ASHP
The logic currently changes the max flow temp setting v...
By Grantmethestrength , 2 days ago
-
RE: Which thermostat should I get (or do I need one?)
OK. It may be best to run it through the wint...
By JamesPa , 2 days ago
-
RE: Samsung 5kW R32 Monobloc Gen 6 ASHP
Hi @Nick Owens, welcome to the forum. My Sam...
By Old_Scientist , 2 days ago
-
Heat pump and wifi kit connection.
Currently trying to connect my Samsung MIM-B19N board t...
By Alfapat , 2 days ago
-
RE: Heat Pump + Tado Setup: Smarter Control for Secondary Pumps?
I suspect this is one for @pirate-rich
By Mars , 2 days ago
-
RE: Seal the Deal: Don't Let Your Heat Pump Leak Energy
Yuck, yuck and more! Others have pointed out lots alr...
By Judith , 2 days ago