Hi Al Sometimes damp on or usually in a corner of a ceiling, particularly noticeable in the winter can be an indication of poor or no loft insulation. We also had the same problem and cured it after a builder mate gave the advice about the insulation. Most people will tend to open the window when taking a shower or when cooking for example, fine in the summer months, but in the winter this adds to the problem of drawing cold damp air from outside then mixing with the warm humid air. Over time, this can lead to the problem of mould and mildew on ceilings. I hope the north wind doesn't decide to blow through your new vent on a cold winters night and blast you right in the khyber pass lol :-)
Sort of right. Cold damp air from outside will still hold less moisture than warm humid air inside the home. It's nearly always worthwhile opening windows, if nothing else you get fresh air into your home. Indoor air is incredibly polluted just by the materials in our home and lifestyles. Basically if it isn't raining the air outside will normally be dryer than the air inside, and certainly healthier. Heat also helps, keeping your rooms at a sensible temperature will help prevent mould when combined with good ventilation.
@@stefanoliwa625 we have window vents but our back bedroom suffers every winter with mould on the ceilings in the corner right near the window and directly above the window Absolutely fine in the summer and that and the bathroom which is next to that bedroom suffers to with mould but I put that down to showering.
Thank you very much for this video. Exactly what I was looking for - damp corner in bedroom at ceiling point where the 2 outside walls meet. Just as shown in your video. Will be looking into options available to increase air flow - a vent to the outdoors in Eastern Canada may be a bit much (Maritimes, lots of snow and wind) but I'm pleased to see there's solutions. :)
Having air bricks done really work. Most houses have trickle vents fitted and they are the same principle and they dont stop the water residue on windows or mould in corners. Ive been looking for a solution for years and found out about the Drimaster positive input ventilation.
I have tried all the usual ways to prevent damp in our house and I was thinking of these units myself. Did you fit the unit yourself and how do you find these units?
Agree with all you have said, PPVs are the way to go, NuAir made in UK, they often come with small heat element. A lot depends on your loft, does it trap warm air, does it warm even in winter catching South direction
Best solution is run a dehumidifier through the daylight hrs , it will remove the dampness you will see just how much water it’s removed before you go to bed it will surprise you at least if pints in Six Hrs
Surely there has to be a better solution to ventilation than having gaping holes in the wall. I'm in a council flat atm and the cold air just pours through the 'vent' making heating the property almost impossible when the winter sets in.
@@jefflangan6422 Check your damp course 4 brick between floor and course...is the pointing on top of the course in good nick. Brick work might need pointing . If your gutters leak or overflow due to debris leaves . In heavy rain The walls stay damp it goes through to to inside. Causing damp mold... Screw fix sell a tub of ready to use mix for a £5 Goes along way. Trowl £2.75 Amazon. Gutters are easy to clean/repair. Might help Jeff.
Don't suppose you could do a video fitting an air brick outside could you? I have a damp issue in the corner of a bedroom, looked outside and there is no vent at all, so looks I will need to add one from scratch. Many thanks.
@@beppesapone1733 yes but I have a air vent in my bedroom. And even when closed. It still let's in cold. And terrible noise from the road and outside. That's why people cement over them. The condensation can be stopped with a humidifier
If you notice in attics the insulation is not rolled to the eves this could also be causing the mould in top corner my advice would be to add insulation out as far as you can reach and just leave a 50mm gap in the attic at the eves for air flow
I had a damp specialist show me that on a sloped ceiling that had mould growth that the reason there are vertical streaks is due to mould growing where there is no insulation, and the clean lines are where the roof joists are. And in bedroom the cold corner has no insulation in the eves hence mould growth.. he said you can add celotex insulation or wash down (I've used diluted bleach/mould cleaner works well) and add air brick or ventilation which should stop mould coming back.
I noticed the room had UPVC windows fitted, these are probably an retro fit. The problem with them is that they help to seal up the room from draughts that may have there with older wooden frames. These day the better UPVC windows come fitted with "trickle vents" which stop the condensation problems. They can be retro fitted to the UPVC window and don't cost much money.
nock the old plaster off puton framework about inch think fill all voids with insulation plasterboard it skim it paint it and u wont see that problem ever again buy some insulation roll and make sure everythings covered in the loft :) air vent in uk will let moist air and cold into your house between october and march
The problem with these vents in a bedroom is that. Even when you close them. You still get. Terrible. Noise from outside. Roads. And other noise. Which Can cause terrible problems trying to sleep. When I moved. In he. The event had been. Cemented. In. So I put a new vent in. The same place. And now. I realise. Why. They had. Cemented. It over. Now. I get no sleep. And cold. Still. Comes in so im. Going to cement. Over it. Again. Condensation. Can be stopped. With. A. Dehumidifier. So if you want a decent nights. Sleep. Don't. Put a. Air. Vent in the bedroom
Fairplay on your video will help with air circulation and some condensation but the reason condensation is happening is because heat is meeting cold the window seals are broken if they are double glazed thats why the windows are like that and the walls are not insulated properly. Ive seen huge amounts of insulation put in houses then a big hole put in the walls pointless having insulation then. Ps the only vents suitable for insulated houses are automatic or extraction. Local council houses seem to be the only ones that have damp problems because the council will not pay to fix them properly.
I'm facing this issue at the moment water leakage through the seal and council saying it is condensation my bedding, clothing also feel damp... Total hell mate
simply because houses sweat if you dont introduce fresh air , water (air moisture) turns grows spaws and before you know it damp conditions, ideal high and low level vents combined are the best. trickle vents were removed in double glazing which was the worse thing they ever did
Great video. I use a dehumidifier. I bought one from screwfix. In the winter I put it in the hallway and run it for 4-5 hours at night before I go to bed leaving the bedroom doors open when it's on. It gathers 500ml of water in that time. I get next to no condensation on my windows in the morning now. The one I bought also has a clothes drying function and only costs about 2p an hour to run.
It simple, condensation is caused by two things: moisture in the air and cold surfaces. If you eradicate one or the other or both you shouldn’t get a problem.
Is it an older home I live in Canada and I live in a home that was built in the 60s and was told there is not a vapor barrier in the walls we gutted the bedroom and installed the vapor barrier and havent had a problem since, that's if you want to go to that extreme, we did have a major mould problem.
too much moisture, all homes have moisture, but its too much moisture, so cut down the moisture from cooking, bathrooms, drying clothes in doors (air rack etc). 6 heating will warm the air, dry out the moisture, but its still there, once you turn off the heating, the air cools and releases the moisture, so ventilation or a dehumidifier is need to blow or suck out the moisture.. until then, buy a hand held glass cleaner, you can buy easy, and every morning, do the windows, walls if damp, shower glass, especially after use.. also, long socks filled with cat litter is a cheap way of sucking up moisture, once it goes hard, chuck away old cat litter, refill, replace at damp points, window ledges etc..
Yes more ventilation helps, although in bedrooms or any room black mould is condensation not damp. Damp is as a result of damp course breaking down and it will travel only 3 feet. Cant reach the bedrooms. I find it is a matter of planning when one wakes up in the morning open the bedroom window and shut the door on leaving, after breakfast shut the window. If a wet patch does appear on the bedroom wall and it is not black check for leak in the loft or roof etc.
@@dereton33 Hey, sorry if I offended you, it wasn't meant that way. Mould is often misdiagnosed as being caused by damp so people do not consider their living habits which are more often the cause.
@@raydavison2972 well said! I would even take this video down as other people have comments on what is wrong. You don’t need a vent , simply open a window in the morning for 5-10 minutes or buy a new window with treacle vent . It’s misleading. And the point you’re making as well is condensation created by the occupants. If it’s damp it’s would be running down the wall and yellow and brown stains . Obviously not as you can see .
All condensation is damp but not all damp is condensation. Giving somebody a slap on the wrist for something that you understood very well is a thing on its own. I leave that up to you.
Why not sleep with a window slightly open? Obviously not an option the traders would suggest! A sealed room is obviously going to result in issues like this. Don't understand why people insist on recycling CO2 instead of breathing oxygen.
It was filled in as it bloody makes the house cold ! And the damp comes as uk houses are old abd badly build 🤦🏻♀️ - friends abroad don't have any vents and never have any dump problems !
This is ideal for me, I have a terrible gas problem, it really bothers my wife but I quite enjoy it, Every Sunday it becomes a problem, especially if I eat Yorkshire puddings and Brussel sprouts. Hit and miss just like my gas problem. Every 1 in 10 leaves a stain.
Good advice, but not so good for the winter when freezing cold air is blowing through the outside air brick into the void. I live on the hill opposite your property and realise the issue with living so close to the sea and its associated issues. This is fine during the summer, but come winter you do not want cold air blowing in to your bedroom and those types of vents, in my opinion, will not stop the gusts entering your bedroom in storms even when closed. I have found the only thing that eliminates this condensation damp from sleeping in a cold bedroom with the door shut is heat. It's the bedroom walls being very cold and breathing in bed that causes the damp on the walls as your breath condensates on the cold bedroom walls overnight. The other device I use on occasion is a large dehumidifier to draw out the moisture in the rooms and can get from a small glass to a pint of water out of the air over several hours, using it in several rooms. Good vids as always but I felt I had to elaborate considering I live in the same area as you and experience the same seasonal issues. Keep the great vids coming.👍
No problem, great to have another viewpoint, I have, since this video was completed fitted a hit and miss vent to the bedroom wall so Regulating the amount of air coming in. I also use a dehumidifier now.
What you need are air changes per hour, cold as it may be you need rid of stale humid air and need to keep the fabric of the building warm, a juggling act, an interior fan running or windows permanently open front and back for cross flow ventilation.
That looks like a cavity vent as it’s a 9x3 and was sealed after insulation was put in to stop material coming out! If so remove the insulation behind the vent b4 making any holes as no air can get through which would be pointless
Interesting. By installing that screen, arent you just venting the cavity in a cavity walled property. Personally there should be an air brick installed externally with a fitted sleeve to bridge the cavity and going up to your new vent screen. That way you get rid of any moisture in a room directly to the outside rather than it just dissipating in the cavity zone.
Wayne, I had a similar thought. The outside vent could have been sealed up due to the installation of cavity wall insulation. In which case, wouldn't it mean the cavity wall insulation is now exposed to the damp outside?
I got a vent put in my small bedroom it don't work damp still in the room with rising heating costs I'm not going to open the window to freeze as I don't see the logic of that at all,its burning money,what I have done to cure the problem is I baught damp traps and they do fill with water,but that smell is gone and I would say to anyone if you see it on items spray with white vinager and let it sit it kills damp fungi..
I have an air vent in my bedroom and there's still damp present. I also have an issue where everything in the room feels clammy. It's very frustrating, all of my clean clothes constantly smell musty too.
I have this problem too. Windows open often, air vent does not appear to be blocked. I do need to fix the radiator and have bought a dehumidifier, not ideal but i live in rented room, limited what i can do. have also been told to de-clutter, to allow more air flow in the room
I have an extra Fan in my bathroom. So cold air will come into the room from outside especially if it’s windy . I am constantly treating mould in the corner above this fan . So l do not believe that putting a vent in that corner will eradicate the damp problem . I use a dehumidifier during the winter this has stopped the mould . Each day the dehumidifier will extract 6 pints of water . And we get a small amount of vapour which forms overnight which we remove with a dry cloth .
I live in a 1930's house so the bedrooms have chimney breasts although the fire places have been removed & filled in, can these vents be fitted to them instead of the outside walls?, & if so is it low down or near to the ceiling?.
This a very common problem. But it is not damp it is condensation it is caused by the moisture in your breath hitting cold wall and turning from vapour to liquid then mould forms. Gentleman is correct ventilation is the answer. Just open windows .
Small air bricks are a waste of time they wont move enough air - The way to solve the problem is to fit a positive pressure fan in the loft that moves and changes the air - Iv tried all these so called solutions on dozens of houses and believe me they dont work !
I have no air vents in my flat they've all been filled in when I moved in I was healthy but now I have c. O. P. D., what should I do to help my health we have pigeons and seagulls too
How come i have rising damp on internal walls of the old part of my house? extension on back to kitchen is fine. Solid floors put in some time ago in place of timber, re-plasterd dashed on outside looks like its even passed its life span, marble chips white background going black with dirt, original air bricks plastered over! why they did this I will never know but its maybe because they thought as the timber floors were taken out and replaced with solid that it would be ok,?
That is not damp , it is fungus caused by warm air coming in contact with a colder surface . i.e. poorly insulated walls / ceilings. This is a major problem in poorly insulated British houses. Much less of a problem in homes in continental Europe where standards are much higher and respect for the citizens living in the homes is also much higher.
I am a window fitter , i always tell customers to change the air in your house every day , air flow stops condensation and mould, always open your windows, when your at home
Hi Al, I seem to have a very smelly loft and it seems damp. Could it be that after fitting very good and insulated loft hatch I created the problem? I have a lot of stuff in the loft and it all stinks. Getting dehumidifier in Screwfix tomorrow. Could there also be a small leak from the roof? But I have the water tanks and central heating tank there too. Bit baffled! 🤔
@@dereton33, Thanks Al, I have bought a dehumidifier and ozone www.amazon.co.uk/gp/product/B076GZ26ZF/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1 to get rid of the smell. It seems it's not that bad but I also found this th-cam.com/video/vDWzITdEt5o/w-d-xo.html Seems a simple and easy solution. Will be checking for loose tiles on the roof too.
@noxxi knox , thank you! I have bought these www.amazon.co.uk/gp/product/B01BLCI14C/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1 The house is 1907 Victorian. In 2018 unless the roof is vented there will be a problem. I think I caught it just in time 😉 👍
Hi, did you manage to fix this problem? Things in my loft smell too. When the suitcases come down for holidays they smell musty and have white mould on them.
Great job! Too many people assume heating is the answer. Funnily enough, there's a blocked up vent in my bedroom (which will feature briefly in my next video).
I have a timber framed house, some years ago I came into a bit of money and had all the windows replaced with triple glazing there were no vents built in the house was built in 2003 and I live on the NE coast of Ireland, there has been black sooty mould growing on the window frame and walls the interior pane gets fogged in the morning. Regards
My parents house had: No double glazing No central heating No air vents AND NO DAMP PROBLEM! They recently had a damp problem in an outside toilet, broken window latch. I fixed it, sealed the door and no more damp... The idea that you can solve DAMP by drilling holes in the wall and letting more damp into the house is a joke, it must be....jesus we spend thousands insulating our houses and then you say just drill a massive hole in the wall??? hahahahaha
The reason your parents house had no damp was because they had no double glazing,no central heating, so, no air vents needed. The house let in enough air for no damp to occur.
Patrick you really are lacking any understanding of this issue. This is condensation and not damp, condensation is caused by mostly the moist air we breath out/cooking, showers etc. Introducing air flow allows the air to circulate. Adding things like insulation contribute to air not circulating properly, it may make your house warmer but the air will be much more humid. If we kept houses as they were originally designed we wouldn't have these condensation issues.
Hi buddy love your videos in our spare room there IS a very already however still got moisture in the corners (upper) and in.particular bottom corner x1m currently painting the room.out and the bottom in particular where moisture has wet paint as such I'm assuming I have a separate issue? The chimney is the opposite side to this semi detached Thanks
i have had black mould in my bedroom for many months even had the wall washed and papered but it still came back i had my loft insulated and the external wall insulated i allways have my top window open no matter how cold it is right now im decorating my bedroom ive rewashed the mould areas with polycell mould remover and i got a mould eraticor kit from my housing assc ohh and my outside walls have been sprayed with a water residant mix i still get condensation on my windows and i got 2 humidifers from pound shop which are filling up and a fan i got to help air the room i will update you in a few months let you know if mould has gone
There lies your problem, insulating the walls actually traps condensation which then has nowhere to escape. Check out this site it helped me alot www.heritage-house.org/damp-and-condensation/managing-damp-in-old-buildings.html
Bit late perhaps to save you mr Ben, but google weather conditions in your town - if the humidity is above 60% then there's really no point in opening your windows, it will just make it worse, you are essentially forcing wet air inside. Buy a small electric dehumidifier, the ones from poundland do nothing really. The amount of water those will absorb is absolutely nothing in a room where you need to remove water from the air. Our Bedroom ALWAYS rises up to 80% humidity (and causes all kinds of problems), but we run a dehumidifier 24/7 to keep it around 40-50% and our problems have gone away.
What do I do if there is no vent in the room? I mean I have a vent for warm air, but I don't have a vent that leads outside, I don't know how else to increase the air flow in my bedroom. It's also in the basement, and there's no particular corner that's damp, it's just very humid. It's like walking into a room full of soup, the rest of the house is far less humid.
Does using dehumifers kill mold or stop new mold appearing I have mold in my bedroom and I use dehumifers also is salt effective and ok to use in dehumifers that have crystals in the top of dehumifer when Crystal's have run out I wanna save money and not have to keep buying more dehumifers when Crystal's have run out
Just moved into our property, and the previous owner "cleverly" did something similar and covered the holes with a slat of wood from the inside. 🤦🏻♀️ Thank you for your video!
Great vid. I live in a house with cobbed walls so impractical to make a vent. Would putting a vent in the ceiling directly under the attic be a alternative?
@@dereton33 we experienced mould in our children room, not much but getting worse Now air is dry and it makes a difference in winter as is more warmer inside
I expect this solution depends on whether the property has had cavity wall insulation installed. If so, this would be the reason for having had the outside vent blocked up. And, in which case, any cold patch on the internal side of an outside wall (on which condensation and then mould is forming) could mean there's a thermal bridge across the cavity at that point, possibly meaning either the cavity wall has failed there and/or something is conducting the heat from the warmer inner wall of the cavity wall to the outer cooler wall (as I understand it).
Hello can you give me any ideas how to fix a dam problem. Our Internal wall is wet to the touch an wall paper pealing off . It is in the center of the house, so not has other walls around it. Thanks ?
Our flat had a fireplace in the bedroom long before we moved in. The room feels cold and damp, more than the rest of the flat if the door is kept shut. Should there have been a vent put in where the fireplace was. Do you think this would make any difference? Thanks.
That’s not damp but condensation With little air circulation the warm air inside from breath over night etc or warm heating contacts the outside walls which are cold which forms water particles which left when dry out produce particles which then attracts more moisture and then can form damp in walls Best option to keep all furniture off of walls and radiators ie beds And crack the window open to let the room breathe 👍🏼
William is right. A few holes is not enough. You need to cut a rectangular hole in the wall so the full length and width of the vent can recive air. Basically drilling only a few whole as the guy did in the video will only use about 20% of the vented area behind. The vents are designed to be a size suitable to allow air flow and need a hole behind them the size of the vent. There not designed to work as intended when you just drill a few holes.
Hi there, we need to do exactly this but my wife is worried they were blocked up for the cavity wall insulation. Do you have any advice on how to handle this?
Hi Al
Sometimes damp on or usually in a corner of a ceiling, particularly noticeable in the winter can be an indication of poor or no loft insulation. We also had the same problem and cured it after a builder mate gave the advice about the insulation. Most people will tend to open the window when taking a shower or when cooking for example, fine in the summer months, but in the winter this adds to the problem of drawing cold damp air from outside then mixing with the warm humid air. Over time, this can lead to the problem of mould and mildew on ceilings. I hope the north wind doesn't decide to blow through your new vent on a cold winters night and blast you right in the khyber pass lol :-)
Thanks for the info Cliff. Al.
Sort of right. Cold damp air from outside will still hold less moisture than warm humid air inside the home. It's nearly always worthwhile opening windows, if nothing else you get fresh air into your home. Indoor air is incredibly polluted just by the materials in our home and lifestyles. Basically if it isn't raining the air outside will normally be dryer than the air inside, and certainly healthier. Heat also helps, keeping your rooms at a sensible temperature will help prevent mould when combined with good ventilation.
Yup that's cold bridge. Vent help with condensation, but why make all cold and unefficient. Window with vents will be sufficient
@@stefanoliwa625 we have window vents but our back bedroom suffers every winter with mould on the ceilings in the corner right near the window and directly above the window Absolutely fine in the summer and that and the bathroom which is next to that bedroom suffers to with mould but I put that down to showering.
Such a lovely man, thank you for these wonderful videos. Much appreciated.
ngatiramona your more than welcome
Thanks for sharing I put one in my bedroom and it works brilliantly thanks
Thanks for sharing. I blocked one of these up a few years ago from the inside of the bedroom and some damp has appeared. Will sort it in spring.
@Colonel Ga-Taffy Seagull noise!
No , problem you have is condensation not damp . Just control it by opening a window up for few minutes every day.
Problem is that the air is cold so why would you want to open these up? I'd rather just use windows are certain times of the day.
Cheers.
Thank you very much for this video. Exactly what I was looking for - damp corner in bedroom at ceiling point where the 2 outside walls meet. Just as shown in your video. Will be looking into options available to increase air flow - a vent to the outdoors in Eastern Canada may be a bit much (Maritimes, lots of snow and wind) but I'm pleased to see there's solutions. :)
Thanks for making this video. I have an identical problem so I'll be giving this a go!:)
No problem.
Having air bricks done really work. Most houses have trickle vents fitted and they are the same principle and they dont stop the water residue on windows or mould in corners. Ive been looking for a solution for years and found out about the Drimaster positive input ventilation.
I have tried all the usual ways to prevent damp in our house and I was thinking of these units myself. Did you fit the unit yourself and how do you find these units?
Agree with all you have said, PPVs are the way to go, NuAir made in UK, they often come with small heat element. A lot depends on your loft, does it trap warm air, does it warm even in winter catching South direction
Best solution is run a dehumidifier through the daylight hrs , it will remove the dampness you will see just how much water it’s removed before you go to bed it will surprise you at least if pints in Six Hrs
Surely there has to be a better solution to ventilation than having gaping holes in the wall. I'm in a council flat atm and the cold air just pours through the 'vent' making heating the property almost impossible when the winter sets in.
Try a humidifier.
@@dereton33 i think he means de-humidifier
Ghost
Buy a vent cover with a
Slider so you can open & close at will
Nightmare, the mold just keeps coming back no matter what we do so just keep cleaning.
@@jefflangan6422
Check your damp course
4 brick between floor and course...is the pointing on top of the course in good nick.
Brick work might need
pointing .
If your gutters leak or overflow due to debris leaves . In heavy rain
The walls stay damp it goes through to to inside.
Causing damp mold...
Screw fix sell a tub of ready to use mix for a £5
Goes along way.
Trowl £2.75
Amazon.
Gutters are easy to clean/repair.
Might help Jeff.
Don't suppose you could do a video fitting an air brick outside could you? I have a damp issue in the corner of a bedroom, looked outside and there is no vent at all, so looks I will need to add one from scratch. Many thanks.
Problem with them they let a lot of cold and noise in.
@@beppesapone1733 yes but I have a air vent in my bedroom. And even when closed. It still let's in cold. And terrible noise from the road and outside. That's why people cement over them. The condensation can be stopped with a humidifier
chris james *dehumidifier
@@juljasmaharchive yes I meant dehumidifier
Yes my son's bedroom freezing
Why not open window now and again
What a beautiful view from your window.
If you notice in attics the insulation is not rolled to the eves this could also be causing the mould in top corner my advice would be to add insulation out as far as you can reach and just leave a 50mm gap in the attic at the eves for air flow
Hi, how would you recommend doing this on slanted ceiling?
I had a damp specialist show me that on a sloped ceiling that had mould growth that the reason there are vertical streaks is due to mould growing where there is no insulation, and the clean lines are where the roof joists are. And in bedroom the cold corner has no insulation in the eves hence mould growth.. he said you can add celotex insulation or wash down (I've used diluted bleach/mould cleaner works well) and add air brick or ventilation which should stop mould coming back.
You get an immediate like for reminding me about spiders. NO to creepy crawlies
Ha ha , don`t you just love them.
I noticed the room had UPVC windows fitted, these are probably an retro fit. The problem with them is that they help to seal up the room from draughts that may have there with older wooden frames. These day the better UPVC windows come fitted with "trickle vents" which stop the condensation problems. They can be retro fitted to the UPVC window and don't cost much money.
Thanks for the info.
nock the old plaster off puton framework about inch think fill all voids with insulation plasterboard it skim it paint it and u wont see that problem ever again buy some insulation roll and make sure everythings covered in the loft :) air vent in uk will let moist air and cold into your house between october and march
yeah great, i'll just find a few thousand pounds out of nowhere...
why not just rebuild the house while you're at it too?
The problem with these vents in a bedroom is that. Even when you close them. You still get. Terrible. Noise from outside. Roads. And other noise. Which
Can cause terrible problems trying to sleep. When I moved. In he. The event had been. Cemented. In. So I put a new vent in. The same place. And now. I realise. Why. They had. Cemented. It over. Now. I get no sleep. And cold. Still. Comes in so im. Going to cement. Over it. Again. Condensation. Can be stopped. With. A. Dehumidifier. So if you want a decent nights. Sleep. Don't. Put a. Air. Vent in the bedroom
Judging by the thumbnail I thought my man was fitting the worlds smallest radiator!
Now there`s an idea.
Simplicity, and soo effective I take my hat off to you good sir
Thank you.
Air vents are a must, especially in older houses.
True but in smaller properties they let drafts in , especially in the winter
I've noticed every single time I'm having a shower there is an extreme amount of dampness in the shower.
That`s normal.
Open window and/or fit extractor fan we need to do this too
Lol
Fairplay on your video will help with air circulation and some condensation but the reason condensation is happening is because heat is meeting cold the window seals are broken if they are double glazed thats why the windows are like that and the walls are not insulated properly. Ive seen huge amounts of insulation put in houses then a big hole put in the walls pointless having insulation then. Ps the only vents suitable for insulated houses are automatic or extraction. Local council houses seem to be the only ones that have damp problems because the council will not pay to fix them properly.
I'm facing this issue at the moment water leakage through the seal and council saying it is condensation my bedding, clothing also feel damp... Total hell mate
@@carmel-wayfinder5401 keep getting onto them
if you can afford it put a new window in with built in vents looks smart
You can fit trickle vents to an existing window..
Well fuck. I found a similar thing to yours where my damp is forming. I'll talk to the landlord to see if he allows me to fix it.
doesn't help that the outside vent is upside down lol
60`s builders.
David Twaits ONLY IF IT RAINS.
@@jeremiahkerry It is the U.K. ! It rains a great deal there.
simply because houses sweat if you dont introduce fresh air , water (air moisture) turns grows spaws and before you know it damp conditions, ideal high and low level vents combined are the best. trickle vents were removed in double glazing which was the worse thing they ever did
Thanks for the info Paul.
Great video. I use a dehumidifier. I bought one from screwfix. In the winter I put it in the hallway and run it for 4-5 hours at night before I go to bed leaving the bedroom doors open when it's on. It gathers 500ml of water in that time. I get next to no condensation on my windows in the morning now. The one I bought also has a clothes drying function and only costs about 2p an hour to run.
Thanks for sharing
Hi, any chance you could tell me the model you bought, I'm after getting one for my damp issue. Cheers
What make mate?
Which one did you get?
It simple, condensation is caused by two things: moisture in the air and cold surfaces.
If you eradicate one or the other or both you shouldn’t get a problem.
Jam, if you put heating on in the room, you'll automatically warm surfaces up.
Is it an older home I live in Canada and I live in a home that was built in the 60s and was told there is not a vapor barrier in the walls we gutted the bedroom and installed the vapor barrier and havent had a problem since, that's if you want to go to that extreme, we did have a major mould problem.
too much moisture, all homes have moisture, but its too much moisture, so cut down the moisture from cooking, bathrooms, drying clothes in doors (air rack etc). 6 heating will warm the air, dry out the moisture, but its still there, once you turn off the heating, the air cools and releases the moisture, so ventilation or a dehumidifier is need to blow or suck out the moisture.. until then, buy a hand held glass cleaner, you can buy easy, and every morning, do the windows, walls if damp, shower glass, especially after use.. also, long socks filled with cat litter is a cheap way of sucking up moisture, once it goes hard, chuck away old cat litter, refill, replace at damp points, window ledges etc..
Pointless in Irish Weather.
I know what you mean it's esp humid wet there
Yes more ventilation helps, although in bedrooms or any room black mould is condensation not damp. Damp is as a result of damp course breaking down and it will travel only 3 feet. Cant reach the bedrooms. I find it is a matter of planning when one wakes up in the morning open the bedroom window and shut the door on leaving, after breakfast shut the window. If a wet patch does appear on the bedroom wall and it is not black check for leak in the loft or roof etc.
Thanks for the info.
Really lovely man. Simple and easy explanation. It works great.
Thanks Edmond.
A useful video explaining a simple fix but never refer to mould as being caused by damp, it is caused by condensation.
Ok, thanks. Give me a slap on the wrist.
@@dereton33 Hey, sorry if I offended you, it wasn't meant that way. Mould is often misdiagnosed as being caused by damp so people do not consider their living habits which are more often the cause.
@@raydavison2972 well said! I would even take this video down as other people have comments on what is wrong.
You don’t need a vent , simply open a window in the morning for 5-10 minutes or buy a new window with treacle vent . It’s misleading. And the point you’re making as well is condensation created by the occupants. If it’s damp it’s would be running down the wall and yellow and brown stains . Obviously not as you can see .
All condensation is damp but not all damp is condensation. Giving somebody a slap on the wrist for something that you understood very well is a thing on its own. I leave that up to you.
What’s the difference between damp and condensation?
Why not sleep with a window slightly open? Obviously not an option the traders would suggest! A sealed room is obviously going to result in issues like this. Don't understand why people insist on recycling CO2 instead of breathing oxygen.
We do sleep with the windows open.
It was filled in as it bloody makes the house cold ! And the damp comes as uk houses are old abd badly build 🤦🏻♀️ - friends abroad don't have any vents and never have any dump problems !
Welcome to England.
This is ideal for me, I have a terrible gas problem, it really bothers my wife but I quite enjoy it,
Every Sunday it becomes a problem, especially if I eat Yorkshire puddings and Brussel sprouts. Hit and miss just like my gas problem. Every 1 in 10 leaves a stain.
You wanna get one installed on the back of your trousers , let them flow out even more naturally.
@@causetheplumstasteyum7848 I agree, just make sure the vent is pointing down.
Good advice, but not so good for the winter when freezing cold air is blowing through the outside air brick into the void. I live on the hill opposite your property and realise the issue with living so close to the sea and its associated issues. This is fine during the summer, but come winter you do not want cold air blowing in to your bedroom and those types of vents, in my opinion, will not stop the gusts entering your bedroom in storms even when closed.
I have found the only thing that eliminates this condensation damp from sleeping in a cold bedroom with the door shut is heat. It's the bedroom walls being very cold and breathing in bed that causes the damp on the walls as your breath condensates on the cold bedroom walls overnight.
The other device I use on occasion is a large dehumidifier to draw out the moisture in the rooms and can get from a small glass to a pint of water out of the air over several hours, using it in several rooms.
Good vids as always but I felt I had to elaborate considering I live in the same area as you and experience the same seasonal issues. Keep the great vids coming.👍
No problem, great to have another viewpoint, I have, since this video was completed fitted a hit and miss vent to the bedroom wall so Regulating the amount of air coming in. I also use a dehumidifier now.
What you need are air changes per hour, cold as it may be you need rid of stale humid air and need to keep the fabric of the building warm, a juggling act, an interior fan running or windows permanently open front and back for cross flow ventilation.
Thanks.
That looks like a cavity vent as it’s a 9x3 and was sealed after insulation was put in to stop material coming out! If so remove the insulation behind the vent b4 making any holes as no air can get through which would be pointless
There is no insulation.
Interesting. By installing that screen, arent you just venting the cavity in a cavity walled property. Personally there should be an air brick installed externally with a fitted sleeve to bridge the cavity and going up to your new vent screen. That way you get rid of any moisture in a room directly to the outside rather than it just dissipating in the cavity zone.
Thanks Wayne, I only know it works exactly as it is.
Wayne, I had a similar thought. The outside vent could have been sealed up due to the installation of cavity wall insulation. In which case, wouldn't it mean the cavity wall insulation is now exposed to the damp outside?
Hi, just wondering we have a 100ml hole in our home in Ireland is that to big it’s so cold in my room’s can you help me out please thanks x
A hundred mm is finely
I got a vent put in my small bedroom it don't work damp still in the room with rising heating costs I'm not going to open the window to freeze as I don't see the logic of that at all,its burning money,what I have done to cure the problem is I baught damp traps and they do fill with water,but that smell is gone and I would say to anyone if you see it on items spray with white vinager and let it sit it kills damp fungi..
Thanks for the info.
I have an air vent in my bedroom and there's still damp present.
I also have an issue where everything in the room feels clammy. It's very frustrating, all of my clean clothes constantly smell musty too.
Some times you just have to resort to a humidifier.
Don't you mean a de-humidifier? A humidifier just adds moisture to the air.
@@dereton33 dehumidifier
I have this problem too. Windows open often, air vent does not appear to be blocked. I do need to fix the radiator and have bought a dehumidifier, not ideal but i live in rented room, limited what i can do.
have also been told to de-clutter, to allow more air flow in the room
Not a good idea for a room you dine or sleep in sure by drilling holes and putting vent in walls only be letting cold air come in during cold spells.
Thanks for your comments 🙂
You need to breathe fresh air. You probably have breathing issues too.
Install a vent.
Well that`s a breath of fresh air.
Can you put an air brick on the exterior side and drill through the holes to line up with the air brick?
Yes .
A nice natural way to cut mould spores down is mix Myrtle lemon oil tea tree Euculptus Cinnemon oil and get a powerful dehumidifier
ThePoisoned Goth or just get the dehumidifier lol
I have an extra Fan in my bathroom.
So cold air will come into the room from outside especially if it’s windy .
I am constantly treating mould in the corner above this fan . So l do not believe that putting a vent in that corner will eradicate the damp problem .
I use a dehumidifier during the winter this has stopped the mould . Each day the dehumidifier will extract 6 pints of water . And we get a small amount of vapour which forms overnight which we remove with a dry cloth .
Thanks David.
@@dereton33 only jus seen this video on damp sams channel 😎
They put those little vents above windows in the frame. They are neither use nor ornament.
They are in all the new frames now. Still worth opening if you have them.
I live in a 1930's house so the bedrooms have chimney breasts although the fire places have been removed & filled in, can these vents be fitted to them instead of the outside walls?, & if so is it low down or near to the ceiling?.
Yes fit near the ceiling
This a very common problem. But it is not damp it is condensation it is caused by the moisture in your breath hitting cold wall and turning from vapour to liquid then mould forms. Gentleman is correct ventilation is the answer. Just open windows .
Thanks.
How's the damp stain in the bedroom since posting this? Has it improved?
Yes all good .
whot if you just get dehumidifier and open your windows from time to time🎉
Just a good.
Small air bricks are a waste of time they wont move enough air - The way to solve the problem is to fit a positive pressure fan in the loft that moves and changes the air - Iv tried all these so called solutions on dozens of houses and believe me they dont work !
Worked for me.
I have no air vents in my flat they've all been filled in when I moved in I was healthy but now I have c. O. P. D., what should I do to help my health we have pigeons and seagulls too
You will just have to creak some windows open to simulate the same thing as vents.
@@dereton33 thank u sir bless you x
How come i have rising damp on internal walls of the old part of my house? extension on back to kitchen is fine. Solid floors put in some time ago in place of timber, re-plasterd dashed on outside looks like its even passed its life span, marble chips white background going black with dirt, original air bricks plastered over! why they did this I will never know but its maybe because they thought as the timber floors were taken out and replaced with solid that it would be ok,?
old part wasnt protected the same way the extension was. you will need to retrofit dry lining
Looks like a black mould problem as well!
That is not damp , it is fungus caused by warm air coming in contact with a colder surface . i.e. poorly insulated walls / ceilings. This is a major problem in poorly insulated British houses. Much less of a problem in homes in continental Europe where standards are much higher and respect for the citizens living in the homes is also much higher.
O dear we had better move then.
I am a window fitter , i always tell customers to change the air in your house every day , air flow stops condensation and mould, always open your windows, when your at home
Good advice David.
Hi Al, I seem to have a very smelly loft and it seems damp. Could it be that after fitting very good and insulated loft hatch I created the problem? I have a lot of stuff in the loft and it all stinks. Getting dehumidifier in Screwfix tomorrow. Could there also be a small leak from the roof? But I have the water tanks and central heating tank there too. Bit baffled! 🤔
Do check for roof leaks but I thing you could probably do with a couple of vented ridge tiles.
@@dereton33, Thanks Al, I have bought a dehumidifier and ozone www.amazon.co.uk/gp/product/B076GZ26ZF/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1 to get rid of the smell. It seems it's not that bad but I also found this th-cam.com/video/vDWzITdEt5o/w-d-xo.html Seems a simple and easy solution. Will be checking for loose tiles on the roof too.
@noxxi knox , thank you! I have bought these www.amazon.co.uk/gp/product/B01BLCI14C/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1 The house is 1907 Victorian. In 2018 unless the roof is vented there will be a problem. I think I caught it just in time 😉 👍
@noxxi knox, thanks for that. The roof has a black felt, not a membrane. I will check out your links👍👍👍
Hi, did you manage to fix this problem? Things in my loft smell too. When the suitcases come down for holidays they smell musty and have white mould on them.
Great job! Too many people assume heating is the answer. Funnily enough, there's a blocked up vent in my bedroom (which will feature briefly in my next video).
Olly Parry-Jones Keep up the good work, will look forward to your video. Al.
Thanks for subscribing, by the way.
Marry a frigid lady...(sorry-could not resist) good vid tho...open a window is my advice.
Ha ha thanks Lee.
I’ve got an air vent I still gett my windows damp and the ceiling i goes black my windows open daily I’ve had them in to try to fix it Still got it
In that case an air conditioner is your only way.
I have a timber framed house, some years ago I came into a bit of money and had all the windows replaced with triple glazing there were no vents built in the house was built in 2003 and I live on the NE coast of Ireland, there has been black sooty mould growing on the window frame and walls the interior pane gets fogged in the morning.
Regards
Ventilation or a humidifier.
@@dereton33 Dehumidifier lol
My parents house had:
No double glazing
No central heating
No air vents
AND NO DAMP PROBLEM!
They recently had a damp problem in an outside toilet, broken window latch. I fixed it, sealed the door and no more damp...
The idea that you can solve DAMP by drilling holes in the wall and letting more damp into the house is a joke, it must be....jesus we spend thousands insulating our houses and then you say just drill a massive hole in the wall??? hahahahaha
The reason your parents house had no damp was because they had no double glazing,no central heating, so, no air vents needed. The house let in enough air for no damp to occur.
Patrick you really are lacking any understanding of this issue. This is condensation and not damp, condensation is caused by mostly the moist air we breath out/cooking, showers etc. Introducing air flow allows the air to circulate. Adding things like insulation contribute to air not circulating properly, it may make your house warmer but the air will be much more humid. If we kept houses as they were originally designed we wouldn't have these condensation issues.
Can I just drill some holes all the way through and then fit the internal plate ?? I don't have an existing vent on the outside
Yes if you want.
Hi buddy love your videos in our spare room there IS a very already however still got moisture in the corners (upper) and in.particular bottom corner x1m currently painting the room.out and the bottom in particular where moisture has wet paint as such I'm assuming I have a separate issue? The chimney is the opposite side to this semi detached
Thanks
Either knock a vent through or use a humidifier.
i have had black mould in my bedroom for many months even had the wall washed and papered but it still came back i had my loft insulated and the external wall insulated i allways have my top window open no matter how cold it is right now im decorating my bedroom ive rewashed the mould areas with polycell mould remover and i got a mould eraticor kit from my housing assc ohh and my outside walls have been sprayed with a water residant mix i still get condensation on my windows and i got 2 humidifers from pound shop which are filling up and a fan i got to help air the room i will update you in a few months let you know if mould has gone
ben lockhurst
The dehumidifiers should solve your problem mate. Get a low power version!
There lies your problem, insulating the walls actually traps condensation which then has nowhere to escape. Check out this site it helped me alot www.heritage-house.org/damp-and-condensation/managing-damp-in-old-buildings.html
Close the window you moron
Bit late perhaps to save you mr Ben, but google weather conditions in your town - if the humidity is above 60% then there's really no point in opening your windows, it will just make it worse, you are essentially forcing wet air inside.
Buy a small electric dehumidifier, the ones from poundland do nothing really.
The amount of water those will absorb is absolutely nothing in a room where you need to remove water from the air. Our Bedroom ALWAYS rises up to 80% humidity (and causes all kinds of problems), but we run a dehumidifier 24/7 to keep it around 40-50% and our problems have gone away.
Just looking at the outside vent, has it been put in upside down, surely water could run down the vanes and inside?
There is a massive overhang outside so no chance. Was fitted like that when the house was built in 1968.
What do I do if there is no vent in the room? I mean I have a vent for warm air, but I don't have a vent that leads outside, I don't know how else to increase the air flow in my bedroom. It's also in the basement, and there's no particular corner that's damp, it's just very humid. It's like walking into a room full of soup, the rest of the house is far less humid.
You could run a flexi vent through the ceiling and out of room above.
Does using dehumifers kill mold or stop new mold appearing I have mold in my bedroom and I use dehumifers also is salt effective and ok to use in dehumifers that have crystals in the top of dehumifer when Crystal's have run out I wanna save money and not have to keep buying more dehumifers when Crystal's have run out
They do help in drying the air out.
@@dereton33 are the small dehumifers ok to use in my bedroom I use the small dehumifers and do they get rid of rotting smell
Just moved into our property, and the previous owner "cleverly" did something similar and covered the holes with a slat of wood from the inside. 🤦🏻♀️ Thank you for your video!
It happens all the time.
@@dereton33 went to bnq after watching. Installing it now. 😁
Really misleading video, you skipped all of the bits which would be difficult for home diy ers how to drill what drills to use etc...
Slapped wrists, sorry teacher, will try harder next time.
Wonderfully explained, easy and simple 👏
Thank you Mate 😊
No problem 👍
They love to say that in England, open the window.
No it doesn't work!!!!
OK just crack it open.
Great vid. I live in a house with cobbed walls so impractical to make a vent. Would putting a vent in the ceiling directly under the attic be a alternative?
Yes better than nothing.
Easier way, just buy a good dehumidifier and problem solved
Amazing how much water colects
Recommend John Lewis Meoco brand
I now have one and problem solved. Wouldn't be without it now.
@@dereton33 we experienced mould in our children room, not much but getting worse
Now air is dry and it makes a difference in winter as is more warmer inside
I expect this solution depends on whether the property has had cavity wall insulation installed. If so, this would be the reason for having had the outside vent blocked up. And, in which case, any cold patch on the internal side of an outside wall (on which condensation and then mould is forming) could mean there's a thermal bridge across the cavity at that point, possibly meaning either the cavity wall has failed there and/or something is conducting the heat from the warmer inner wall of the cavity wall to the outer cooler wall (as I understand it).
Thanks for the info Martin.
Thanks for the video. You need the house to breathe, especially older houses.
Sure do.
Did that vent fix the condensation on the windows?
Yes sorted.
Hello can you give me any ideas how to fix a dam problem. Our Internal wall is wet to the touch an wall paper pealing off . It is in the center of the house, so not has other walls around it. Thanks ?
Need more ventilation.
@@dereton33 thank you very much for reply you
Our flat had a fireplace in the bedroom long before we moved in. The room feels cold and damp, more than the rest of the flat if the door is kept shut. Should there have been a vent put in where the fireplace was. Do you think this would make any difference? Thanks.
Certainly would cut a hole for a vent you can use one with a slide to open and shut it.
@@dereton33 Thank-you.
How to cure damp in the bedroom. Don't have anything to drink before bedtime. 😁
Ha ha.
put a trickle vent in the window
Thanks.
I'm going to fit in 2 rooms. Thanks for that
No problem 👍
i thought you had to make a whole brick size hole but if a few holes drill out does it 👍
If it is going in to an out side vent. If not a 4 inch core hole is best.
The other option people without a vent is to fit a trickle vent in the window frame,
Thanks great advice.
I love your easy to understand explanations. Thank you. Keep up the good work!
You're very welcome!
Thank you so much, it’s amazing video and for sure it helps a lot. Love you
Glad it helped!
What is this type of vent called? I tried searching for it on Amazon and couldn't find it. Can you post a link?
It is called a MAP vent. Best bought in a hardware store, nothing on Amazon.
@@dereton33 thank you!
Is that an old house with cement render on.? As if so this is exactly why that has condensation problems
No.
Will this help stop black mould in corner of bedroom?
Yes.
@@dereton33 thanks ☺️
Why in God's name is this in my recommended
Why not?
That’s not damp but condensation
With little air circulation the warm air inside from breath over night etc or warm heating contacts the outside walls which are cold which forms water particles which left when dry out produce particles which then attracts more moisture and then can form damp in walls
Best option to keep all furniture off of walls and radiators ie beds
And crack the window open to let the room breathe 👍🏼
Thanks for the info.
@@dereton33 no problem
It’s a common problem people have with over furnishing rooms and stopping airflow
Good job tho 👍🏼👍🏼
Should have turned the outside vent round the right way. That's going to cause ingress that way up.
Thanks for this video . I searched for a long time for instructions how to fit a hit and miss vent.
No problem!
No you need to cut a rectangular hole to match the dimensions of the vent. Just drilling a few holes won't be sufficient. Good video though.!
So this wouldn't work?
yes it will
William is right. A few holes is not enough. You need to cut a rectangular hole in the wall so the full length and width of the vent can recive air. Basically drilling only a few whole as the guy did in the video will only use about 20% of the vented area behind. The vents are designed to be a size suitable to allow air flow and need a hole behind them the size of the vent. There not designed to work as intended when you just drill a few holes.
I get quite few damp patches upstairs walls will it help if I do same process ??
Yes .
There is speciel ones which you can stick on pvc windows or doors,with sponge inside.
Cheers.
PIV fan from loft sorted all our damp issues in our house
Thanks for the info.
Hi there, we need to do exactly this but my wife is worried they were blocked up for the cavity wall insulation. Do you have any advice on how to handle this?
There is a vent tube you can get to pass through the wall.