Vapour Permeability & The Truth About Stormdry
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- Опубликовано: 9 сен 2020
- Roger carries out some tests to see if the claims made by Safeguard Stormdry are watertight.
MORE ON STORMDRY
Stormdry has been tested to EN ISO15148:2002 (E), demonstrating its effectiveness on concrete, mortar, brick, and sandstone.
Stormdry masonry protection cream is applied to masonry in a single coat by means of brush, roller, or spray. Once applied, it penetrates deeply into the masonry before curing to form a colourless, breathable water repellent barrier.
WHAT IS PENETRATING DAMP?
Rain penetration through masonry (known as penetrating damp) is a common problem in buildings - particularly in the case of those of solid wall construction.
The problem is also increasingly common in buildings of cavity wall construction where cavity wall insulation has been poorly installed or used in walls that are not suitable for cavity wall insulation.
Other paths through which rain can cross through a cavity wall include incorrectly positioned wall ties and mortar obstructions in the cavity.
Penetrating damp is caused by water permeating through walls from the outside. It can occur at all levels of a building but is more prevalent higher up.
It is possible for damp to move within walls but this horizontal movement differs from the vertical movement of rising damp. Penetrating damp is usually caused by the following:
Porous Walls - Aging bricks lose the ability to keep out rain penetration.
Spalled Bricks & Degraded Mortar - Damage to brickwork allows water to penetrate.
Building Defects - Defective guttering and downpipes, roof damage, dilapidated or poorly installed windows. In this case, fix the root of the problem before applying Stormdry to boost your protection.
#Stormdry #VapourPermeability #Safeguard
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Thanks for a great demonstration and the honesty to mention the "negligable" results from the independent test data. But mostly, thank you for bothering to take that extra step to re-assure not only the viewers but also yourselves in the face of questions. Open minds all round and always be prepared to change a viewpoint based on new info. Thank you.
Mark
The reference to 'negligible' is simply that the amount of moisture not escaping from the brick through evaporation is too small to make a significant difference.
High quality way of silencing the keyboard warriors. Big up Skill Builder.
We will never silence those people who have closed minds. We know it works and does zero damage.
Skill Builder well proved mate I’m satisfied with that proof 👍🤘
@@SkillBuilder A mind is like a parachute: it works best when it is open
Keyboard warrior here, sorry I mean a time served fixing mason who practically repairs old houses and actually understand the fundamentals of what is happening because of education, training and experience. Your house needs to get wet and then dry out as it needs the water to repair the micro fractures caused by thermal expansion through calcification. It also needs to breathe in both directions because of condensation forming in the walls. The rate of permeability is also important for different stone/brick types to prevent the formation of gypsum or effloressence on the facade, among many other things that can rapidly deteriorate the fabric and affect its look. Permeability of lime mortar for those interested is roughly, complete saturation in 15 mins for hot lime, 30-35 mins for putty and 60-80 mins for NHL. I'd be surpised if this ever gets fully saturated, meaning the mortar will dry out and crumble instead of turning to mush.
@Horatio Nelson who talks sense
Thank you Roger. Your other stormdry video and this one is very informative and it will be a product I will use on our house .
This channel is just bloody next level. Amazed at this stuff. Who needs school when you get content like this? Think i will just binge watch the whole channel history then print my own degree.
That is very funny. We could issue diplomas.
@@SkillBuilder and t shirts. "I watched everything on Skill Builder"
Fantastic clear video, thank you Roger. I’ve only just discovered your videos on RUclips this week and absolutely hooked and picked up so much useful information. Stormdry is on my list of projects to apply to my 1930’s house, just had the pointing done now for stormdry. Keep them coming please 🙌.
Welcome aboard!
Brill wanted to see this for years
We used this on 3 properties. Great stuff
Lol - If you don't believe it, well you're never going to believe it... great final words of wisdom.
Good vlog I,m a brickie and I,m always sceptical about these chemical products but this was a great test to show the product at work
What a simple and great demonstration of the product.
A very convincing test to my eyes, thanks Roger!
This is brillant. I have a solid damp wall and when I watched your previous video this was my first concern but it's just confirmed its probably the right fix.
It will do no harm which is reassuring.
Proof positive, stoomdry is breathable. Excellent video Rodger👍
The integrity of this channel is/was never in doubt. I think everybody agrees you are an honest and trustworthy channel. You gave me hope that there are still good tradesmen about.
On the product, I certainly think there will be applications where this product is suitable. The problem is when people start using the wrong product to solve the problem.
I think it probably works well on brick, but I do still have doubts as to anybody painting this on sandstone, especially in coastal areas!
Except the dot and dab tiling that didn't get addressed
It did get addressed. You missed it. You can dot and dab and still meet the British Standard. No problem. The tiles are still there, no cracking or missing grout.
I am wanting to use it on a hard sandstone at the coast:/
Another Mic drop moment! Great video Roger! Well done and thank you for your video!
What would be great is to see a video whereby there is damp whether that’s rising or penetrating and fixing the cause of it rather than masking the symptom... if you know what I mean. Thanks again! 🙌🏼👏
Really interesting. We have damp penetration through our brickwork and I've ordered some Stormdry. Thanks for doing this to show me how it works.
And? Satisfied?
One of the best products I've ever used. It worked wonders on the old stone chapel that I live in. Can't recommend it highly enough.
Great video Roger! Explained everything down to the tee! Cheers.
Thanks 👍Shaun
Really interesting video, thanks for taking the time to do it. 👍🏻
I use Storm dry and swear by it. The best product that I have been introduced too. I remember seeing how much it cost for the first time and thought it was an error. 😂 I took the plunge and its worth every shackle. I think even brick manufacturers rate it, and they normally hate anything being coated onto their precious brick. Looking forward to your new Damp videos. I get the odd call to look at problems caused by potentially penetrating damp, normally it's straight forward like a faulty Gutter or Drainage but it's an interesting subject especially if it's rising damp etc. 👍
Thanks Mark. Nice to have your comment based on experience. As you say most of it can be fixed easily by sorting out gutters and pipes etc. This product is good for chimneys with no dpc.
Brilliant! ive just used this product on one of my Builds. It was astone property , with penatrating damp!
Thanks for this and all your other content Roger. I'll certainly be giving it a go.
I've just used StormDry on old granite/slate chase. Mortar was lime mix two weeks before. I'll go extra on the flashing, top cap, drip edge, shale rock and joints. Great video Wodgey Rodge, although on a chase the ability to expel trapped water is negligible. I shall report back....
Report back then
Utopia, excellent presentation! Well done that man 👍👏
Nice to see now i will use it on any cement mortar wall. Thanks for the info.
This was really useful, thanks Roger
Nice one Roger!
Thanks for the clarity
Wow! Great demonstration Roger. 🤓
I have been using this stuff for years and it is incredible
This is another great video, i purchsed this and will do again it is super stuff, you can feel the difference when inside it is like having new windows for the first time.
Thanks Roger, That has convinced me it works.
Great demo thanks!
Good video Roger,
Forget all the doubters.
Tell them to go and use it.
I have used this product for years on chimneys, single skin garage walls etc and never had a come back.
There is the proof.
Excellent sir. I have an occasional problem with efflorescence on segmented retaining walls I construct. You gave some ideas for consideration.
Looks good, Roger .
Great video thanks for making it as I am about to use this on a customers house and will also show them this video 👍
Have you done the same with a control sample? Without treatment showing water going trough? Would be good to see what head of water could be with held by a treated sample (without a positive pressure from in side). Other control I would like to see is two bricks saturated with water, then one treated one left untreated, and then left to air dry to see how long one takes to dry to the other. (Weight of brick dry and wet should measure how much water is locked in to the brick)
Well I’m convinced Roger ! Great little demonstration 🧱👍🏽👌🏼
Thanks 👍guys. This gets used on damp chimneys all the time.
Skill Builder 🧱👍🏽
Cheers mate. Great vid.
We had a house that seeped in water in via porous brick, this treatment worked a treat
Does it feel any warmer, as claimed?
Difficult to say, but it stopped the water which was a big relief.
@@RoderickSpoke that's all we need, cheers
Thank you for this video !!
I used storm dry about 6 months ago on our house to treat penetrating damp. I've been monitoring the moisture content of our walls internally and externally since then, and it has been dropping to the point where I no longer have a problem. Prior to that, there was year round damp (somewhat variable with the weather, but always higher than satisfactory). It's great stuff if used for the correct application, if a little pricey.
Where was the damp coming from?
@@TurinTuramber Rain. We're in a fairly exposed spot. The house is from the 30's. It's lovely, but the bricks are very porous and there is no cavity. I spent a long time confirming the problem and researching solutions.
I should also add that there are loads of products out there which absolutely would lock moisture in. They have other uses. It's all about doing your homework and finding the right solution for the right problem. To echo what Roger says in the video, the independent analysis is available and my personal experience backs it up.
Our house is victorian with a gable end wall. Every time it rained we had huge damp patches showing at the gable with three distinct areas showing wet. Tried other products and no better. Finally used Stormdry and it cured the problem straight away. I cannot recommend highly enough.
A lot pricey! £120 for 5L.
Great video!!!
Very clear to anyone with half a brain that it works!! Well done, really good quick video !!
Looks great!
A great demonstration & a conclusive result 👍 but I bet you’ll still get a few sceptics 😉
Quality work here
Thank you Rodger
Roger’s done enough. He did the original video and there were doubters. Fair enough. He’s now done a fine job by going to the manufacturer and building an experiment to try and show the doubters that it does actually work. If this is not good enough then do the right thing instead of whingeing. Go out, buy the product yourself and demonstrate that it doesn’t work!
Well, if you don't believe it now you don't want to believe it. Thanks for taking the trouble to show this stuff in action, as they say a picture (or video) says a thousand words.
Quality product. Just applied some at high level and can see this being utilised much more frequently because of the Government's 2050 building regs.
Another great job chap! Wish my beer would retain co2 like that.
Great video, and fair play for testing the products you've promoted and putting them under scrutiny. It takes balls as it may put future sponsors off but if everyone done this then hopefully, in the long run, lead to a higher standard of products across the board. I like the look of this product and I'm definitely going to try it, however, when the water was poured in you could see air bubble rising from the brick. That suggests that the water is penetrating the brick and forcing the air out? So maybe the brick is breathable because it isn't sealed by the product???
Well done Roger👍 Stormdry is a fantastic product which is proven over time, and has a BBA certificate. It isn’t like Thompson’s water seal either that isn’t uv resistant 👍
Thank you Ross. At last someone who knows something about the product. So many people condemn it without every using it.
Skill Builder keep up the good work Rodger 👌👌👌
I'm so glad I found your channel this week. I bought Thompsons waterproof sealer as I have a small patch of penetrating damp from rain coming through 1920's brickwork. I was waiting for a dry weekend to apply it but have now gone out and bought stormdry understanding that Thompsons can lock in moisture. Wondering what I should do with a full 5L of Thompsons now...any suggestions for applicable uses?
awesome, thanks very much this is perfect
Great channel, great product and I need to waterproof a wall but the price...!!! Wow
Thumbs up - Good to see you are open minded about these things as it is indeed necessary to verify the claims of manufactures. This demonstration was very interesting and does appear to support the claim that the coating is breathable. Strictly speaking however this demonstrated that air - rather than water escaping as water vapour - will readily passes through the sample under slight pressure. Would be illuminating therefore to seal water in the base of the container, place it in a dry place, and see how long the container takes to fully empty by simpler evaporation - maybe this has already been done?.
Yes all those tests have been done but they are hard to film. There is no doubt at all that this coating is vapour permeable. If water turns to vapour the molecules are very fine and aren't trapped.
Roger - just checked the Stormdry website and indeed they have done the water vapour test and found that the sample was, as you say, only slightly (10%) less breathable than the untreated sample and in many if not most cases this would be an acceptable reduction. If however the wall was damp due to internally generated moisture (eg condensation) a 10% reduction might be undesirable. Definitely learned something useful here, not least that it is necessary to track down the actual source of any excess moisturer before deciding upon a treatment method.
@@SkillBuilder Roger - yep all accepted and an interesting demo.
Hi Rodger thanks for the experiment. Scientifically though, you would need a control brick which hasn’t been treated with the storm dry. That should show water ingress. That said, clearly breathable. Cheers..
We will do more on this with a control sample but the test results are all there for public consumption.
well done and thank you on with a renovation at the moment the house is 1800 if not before all old sand stone with some damp going to paint the sand stone with this
Well dude it’s obvious the haters don’t know what they’re talking about. You don’t want to lock in moisture but that’s why you didn’t put it on the inside of the house lol. You did exactly what you want to do!
Love the channel been watching a while now. Always interesting. I have never used this product nor am I a builder but I do believe a better test needs to be done. In no situation would this stormdry be under pressure. When the little chamber was pressurised higher than the atmospheric pressure air is very likely to find its way through. In order for it to be a true and honest result the pressure both sides if the brick need to be equal as it would be in a real world building brick.
Callum
This was not a test, it was a demonstration to show that air and vapour can pass through the Stormdry and it can therefore not trap moisture. We know that because the tests on this product have been carried out by several reputable labs across the world and they are published for public consumption. As for pressure in buildings if you assume that water vapour is passing through the building and there is sunshine on the wall which, even in the winter, will warm the wall up any moisture locked in that wall would certainly be under pressure but it is not necessary to apply pressure for the moisture to escape. Things dry out in the sun very easily so if there is a pathway through for air there will be one for water vapour. There is a lot to discuss when you start looking at the way vapour travels through a building and if you are interested in knowing more I will find you some good bedtime reading.
@@SkillBuilder thankyou for the reply. Every episode I watch is lesson that I enjoy keep them coming :)
Would you apply Storm Dry to a Sandstone building?
I have black mortar on my brick work which is very porous, wondering if this product would be suitable or would I need to repoint the brick work as I am getting considerable damp inside
What product would you recommend for a rendered gable that has been painted, some wind driven rain getting in on occasion.
Hi Rodger Ive been given the task of quoting to repair an old flat roof on a hotel, the company is struggling in the current climate and rather than stripping the whole roof back 19x15 mt and doing it properly im asked just to repair the area of the leak, Question is there a product that you can recommend I use (EPDM) that will allow me to paint over/ on top of the Ash felt?
I might buy , this
can you do some tests with acrylic masonry paints that claim to be breathable? and upload a vid would be good
Back in the early 80's they gave us an option, play rugby(in the freezing cold) or learn a skill. I chose the skill route and didn't look back but it was a shame we didn't have the Skill Builder channel in those days!
This would be ideal for houses in flood area's to keep the foul water from penetrating deep into the walls , maybe ? good video 👍🇮🇪🍀
Check out their website where they show that very application with a cavity pump.
I like Rodger the scientists more than Rodger the skill builder😀.
Are there any alternative product?
Does this help dry out the house? I do not have problems with moisture through the wall. But due to energy prices I like to have the house quite "cold". But than you automatically run in to high humidity issues. Does this product help to get excess moisture our?
Thank you Roger I have a cavity extension and room is cold so I will definitely try this to see would it help keep cold out
Slso I will be doing in side plaster walls on termalite water coat paint
Regards
Billy Arnold
Ireland
Very inventive demonstration. Belzona make something similar - also very expensive. But sprayed on, so much quicker application and greater reach from single position. Less easy to see the bit you've already done than with Stormdry. but this only a drawback if you are haphazard.
You can spray Stormdry on too.
Will it work on synthetic SLATE roof tiles or will it cause a chemical reaction with synthetic file material?
Thanks for showing us roger question tho ? can yo put masonry paint over the coating ?
Excellent Rog. Two fingers up to the keyboard warriors
Can I paint Stormdry Masonry Cream on the concrete ceiling before plastering?
You could also conduct a Karsten tube test.
What do you think of batten and insulated plasterboard internally for walls where there is no cavity’s? (Solid brickwork). Someone told me that if I do this. The brickwork will get more frost damage in winter months
Quick question…… can this be applied onto brickwork after it’s been cleaned using Disclean or similar?
Thank you so much for this great video. Can Stormdry be applied internally? We are considering buying a house, but the kitchen wall is underground (built in an Italian cantina/basement) and so on the other side of the wall is earth and the damp is coming through from there. It's impossible for us to dig down on the other side because it is actually a public road that the wall backs on to. Would love any help! Thank you :)
Stormdry is quite expensive, would you recommend any other similar (cheaper) brands?
Just had my roofer endorse the product 100%
people who have used it tend to like it a lot, people who haven't seem to know all about it.
Nice bit of Science there Roger, thank you. Would the same permeability hold true for older building materials? I'm thinking sandstone in my case.
Yes, absolutely it works well on houses which are several hundred years old.
Difference between storm dry and storm dry max? Does the max still dry without changing the color of the brick?
Now try the experiment with brick treated with 'ordinary' silicon liquid. You are applying air pressure to one side that would not normally occur in real life situations. It would be interesting! Storm dry is about £120 for 5L so how much would be needed to treat a house? The savings in heat loss would have to be very significant to justify the cost, though if you have a damp problem, obviously the dual benefits of stopping that AND heat loss would make it worth the cost
Can this be used on limestone please? Latley I have noticed greasy looking patches on my walls upstairs sort of floor to hip level.
Hi, roger great channel would like to know if you could use this on cerment render painted wall, wall is painted with masory paint without taken paint off has next door wall is making wall damp
or would you think there woul be a problem. any help would be greatfull . or could you use on inside block wall if no access to next door wall thanks .
Interesting - well Roger, you have clearely demonstratd that air molecules under pressure can be pushed up through the brick sample but surely, that is not the same as water vapour (so larger molecular sizes?) under just atmospheric pressure being able to do the same? PS I'm not a chemist or physicist, just a curious bod. And I've only just started to watch your channel and I love the stuff you're doing so please don't take my comments as a criticism.
Will it work on garden walls?
Fantastic! I need to coat my chimney.
Hi Roger, I have a problem with bricks on the front of my house, some of the (about30 on the lower part) have for some reason lost the front of the brick and become very powdery on the face. About three years ago, I went to B&Q and after talking to the them manager was director to a product called Aquaseal, I took this home and applied it to the outside walls, problem solved or though I thought. Then you come along talking about trapping water in, something I had not even considered. My question is does Aquaseal work the same way as the product you are advising people to use
Frost damage on bricks that absorbed water which then froze and expanded (many times) causing 'spalling'
Great video. My dad was a mason for 50 years, and maintains you should never paint anything on brickwork. And with the technology he lived with - good idea. New tech can change things - this looks great.
Respect for your Dad but there are plenty of products that can help to prevent rain penetration. Chimney stacks are particularly prone to damp being wicked down into the bedrooms. They used to use linseed oil to try and reduce this. The only trouble it that the starlings love it and peck away at the mortar.
Can someone tell me if this can be applied on pebbledash walls. Thanks
Any Canadians know if this product is available in Canada or if there is an equivalent here?
How many coats before it blocks the pores?
very thin wafer of brick
is the surface of the brick a surface edge or cut edge?
I'm not a skeptic but I find the test a bit rushed, still planning on trying the stuff.
Would the water leave from behind?
If you reverse the vacuum to negative pressure instead of positive will the water penetrate through? Can you do a video like this? So pull instead of push
Can ‘Stormdry’ be used to ‘tank’ garage wall from the inside?. To stop water penatration.