It looks like a land drainage problem to me and guttering plus pointing that needs redoing.

I have recently bought some humidity readers and put them around my old stone house. The readings are always above 70% and even reaching over 80% in a morning. In my kitchen area I have a very damp wall sometimes you can see the water running down it. A few so called damp specialist have been and told me it's rising damp, now after watching this video I'm confused. I think I might just install a PIV unit and see what that fixed. If the damp still remains on the kitchen walls I might need to get a second opinion. @dampsam What do you think?

I don’t even think I have any damp but I like watching your videos 😂

There's a few pedantic nob heads on here like

@8.20 I must have replayed it like four fecking times pissing mesen. Fucking Breath 😂😂😂 Just for the record your fecking mint chap. Had me laughing 😂😂😂

What?

Basically your whole argument for damp proofing in this video is its quicker and cheaper. Basically go for the quick fix. Except your damp proofing doesnt solve damp, it masks it and keeps the building wet, cold and thermally inefficient.

Your so wrong saying paint doesnt trap moisture. Surely as a 'damp specialist' you should know that it does. There js evidence all around us that polymer paints trap moisture and salts, normally manifesting as blistering and bubbling. I have literally popped a bubble in paint and water came pouring out.

Hey sam, ive got this issue in the hallway eaternal wall of a 1930s semi detatched. Ive scratched and its definatly dry plaster below the surface. Other than improve ventilation / lower humidity, whats the best way to prep the wall to prevent this? I was going to install a radiator on that wall to heat it up.

I moved into a rental House last April (Northern Ireland) over the past 2 or 3 months i noticed that all my windows are door are wet in the morning. i bought myself a Hydrometer After one hour it showed 85% Humidity !!! So, i bought myself a 12l Dehumidifier (£ 189) and let it run after 12 h the Dehumidifier shut itself off , BECAUSE IT WAS FULL! The humidity in the House was still 82% . I ask my Neighbor if he has the same problem, only when it was flooded a few years ago he said. He gave me the same meter , you're reviewing. The walls are all around 20% but the wall behind the boiler (Hot Press) is 60% . The ceiling in the hallway is 90% . So i thought there is a leak in the attik ? Went up , but could not see any moisture or wetness. What else can i do ?

Great video. What board and skim would you use for this work? Thanks.

Just yesterday I started work in the pantry in the house that I am renovating. Almost same problem as you describe here. The walls are plastered, but somebody along the way has made a sort of skirting board out of sand and cement render, which go right to the concrete floor. The damp had a very strong smell when hacking them off. After just one day, and the help of a small dehumidifier, the walls are drying out. Dry rods in tomorrow. Some say they are snake oil, but seem to be working in other parts of the building. This damp course bridging has been a "feature" throughout the whole house, one way or another, along with missing roof tiles, disconnected gutter/downspouts, holes in downspouts, pipework underground held together with parcel tape, shot pointing, blocked cavities, ground levels too high, anything else you can think of. I took the house on as a retirement project (must be mad) but with the help of your and other videos, I have learned a lot along the way.

150mm from floor ??? which floor the external ground or internal floorboards ?? Internally the treatment will need to be below the bottom of skirting

Are they pore liners or pore blockers ???

Why do it on the external skin???? That gets wet above and below by rain.....it's outside! Ensure the cavity is clean and treat the INTERNAL leaf. What exactly it treating the external skin doing??

Hi Sam, 7 years on would you still recommend one of these solutions? Thank Richard

Not all hotels will do that lol if you couldnt sleep you shouldve asked for your room to be changed the moment the noise started bugging ya

It’s a common hobby these days, going on the internet and making a tit of yourself. Facts are facts, gypsum and plastic paints are very bad for old buildings but yeah, you keep it up in order to sell shit to people daft enough to believe you.

Cat's Arse 😆 great vid, but Rodger is a top bloke. Subed

Hey Sam, wondering what kind of condition the plaster needs to be in behind the iso-therm? If the plaster has damp patches - does it need a fresh plaster job before proceeding with the iso-therm?

I've never seen a plasterer or painter/decorator wearing a mask. Though I feel they definitely should

Aye up Sam, do you cover the Hull area, Thorngumbald to be exact. We're in the process of buying a terraced cottage, built approx 1930-1949. Getting a homebuyers survey done but would also like a competent damp specialist to check the place over. Personally I cannot smell any damp or see any visible signs, plus the damp course is not bridged and visible from outside. I would like peace of mind none the less. Could you accommodate?

I think it’s clear you are a professional, however it doesn’t look good on your part when you are kicking people down and basically making them out to be stupid for trying something new. A lot of plasterers have this chip on their shoulder saying it’s a dark art and there is some sort of invisible right of passage where you must learn off an actual spread or hold a city and guilds. Modern era has changed all that I’m afraid pal.

Love the new avatar. Funny how you’ve made yourself better looking, younger than in real life. Can you do one where you say anyone who calls a handboard a hawk… s’a cunt! ?

Hello sam ,whats the black stuff around the top of the skirtings,looks like black jack seal.

Hi Sam you don't know me but I've been recommending you to my clients in the Leeds and Harrogate area. My small company is called WatertightRoofingLeeds Ltd I've learnt a few things from your KZbin channel which has helped me advise clients on various damp issues.

Hi, this video is very helpful!! thank you!!! I am a basement flat in a VIctorian 1880s home - to which my flat is below ground level - historically used for servants. I have damp all on the base of my chimney breasts x 3 reaching at about 30-60cm high with zebra patches of salt residue. I removed the plaster and bonding to expose the brick and can see there’s been a DPC installed. Leak detection survey revealed uncapped chimneys. Could this be the cause? as i have damp all along the structural walls that are connected to a chimney and have plaster on top. what to do next?? 😭😭😭 please help!

Hiya mate hope all is well with you and yours. Where has tha gone! I miss your videos. All the best ❤

Hi Sam, had thse fixed to my walls today and they're back to plaster next week. Looks a bit uneven and bumpy at the moment. Will that matter for the plaster finish? Cheers mate

i do enjoy the show and i don't know who SJ build is but Rodger Bisby is the man, don't you even go near slagging off Rodger Sam! :P

Thanks for the video, I am looking at using this system to cover the lower part of internal / external-facing solid brick walls after minor rising damp and some small amount of penetrating damp, and I am wondering how small a gap is sufficient between the wall and plaster? The existing lime-base and gypsum skim varies from 25mm down to about 15mm. Would you use a 9.5mm board if it's tight as I assume this system needs some kind of air flow and gap to stop moisture getting into the board.

I'd die down the stairs

You can skim hard wall soon as it’s set, the skimming goes in better as it’s still full of moisture. Next day it pulls it straight in. I’ve just checked online for installation guide…there’s a link, doesn’t give a time to skim.

Unfortunately I couldn't see alot of the actual airbrick installation

It didn’t need the second coat of hard wall,he could have nail floated it ready for skimming. He shouldn’t of floated over paint, would of been better using gyp liner

Defo condensation, ventilation is needed is old homes, just crack the windows on the trickle vents or on the latch for an hour per day, wood burner helped massively in my old house, nice dry air. heating the condensation air with central heating creates mold and damp.

Hope you are doing well mate, miss the videos.

What about if you've got salts along the top of the skirting on the first floor as well as peeling paint

Hi Sam, i need to do this in my back attic bedroom. Do you have links to the adhesive and membrane used so i can buy the right stuff? Cheers.

Worked for me stopping damp coming up through garage floor 💁‍♂️

The problem not with this industry but with any industry nowadays is that professionals are no longer professionals. Instead of doing the job properly they put different strategies to take more and quicker money from their customers. They always assume their customers don't know anything about the job so "the professional"is always right.

I am willing to believe in this but what to know is there evidence of this working? showing bricks sitting in water and the water not going past this layer or a wall cut open to show the layer of this stuff?

Sam I need your advice on bridgeing and cold spots etc. Could I contact you?

Hi Sam, how does this compare in terms of warmth when compared to full insulating boards etc

I dont agree with you. Modern technology eg you gypsum is for modern houses. 100+ year old houses especially no cavity and stone need lime instead. It's the same with cement mortar on stonework you use that and the only way water leaves the wall is at interface between stone and brick and that's why the stone starts to blow out. Whereas lime based allows the water to evaporate from it saving the stone. It's the same inside with plaster on wall. My wive caused a major water leak once upstairs entire downstairs under cm of water the ceilings water logged. Guess what dried them out and perfect whereas been plasterboard and gypsum within first few mins of water would have caved in. As for damp majority is due to poor ventilation and humid air hitting cold spots. Lime helps absorb and release gypsum doesn't.

Is it possible to be any more Yorkshire? 😂 love it

will leaving windows cracked open help damp from condensation and mositure in a gable end terrace

Mate that wall needs to be water proof sand and cement rendered sika1 .