Super helpful, a nightmare contractor left my roof unbolted for three months and it literally ripped in half and blew into the neighbors yard, This video really helped me get some time to patch it up until i rebild it. Used all of these tips and made it through a really heavy winter. Thank you so much.
Roger what a delight you are! I have been watching and enjoying your wonderful informative videos You have a way of delivering information in a way that is easy to understand, and you arrange things so that you build our knowledge Thank you
Roger , great video (again !). Perfect solution for the flat section on my loft Dorma. Yep, the roofers said complete rip and start again; (& yet these materials can't cost more than few hundred pounds) - top man.
"And that’s how it came to pass, that on the second-to-last day of the job, the convict crew that tarred the plate factory roof in the spring of ’49 wound up sitting in a row at ten o’clock in the morning, drinking icy cold Bohemia-style beer, courtesy of Roger Bisby...."
Nice one Roger. I was going to go all out and do a GRP system on OSB to seal a flat roof to prevent rodents gnawing through the OSB. The roof is under another roof and this looks like the perfect product. Saved myself a couple of grand!
It will in a few years. Nothing to do with Rogers workmanship, its just these products are rubbish. If you dont believe me come back to this post in a few years and ask skill builder to ask the customer if it's leak free.
Thank you for the video. Not sure what the product actually is but i am thinking we would have a hard time closing any quotes with all that is needed...Not a fan of elastomerics but for some roofs that don't really need to extend their service life so many years out i guess it is an OK fix. Our company has used pretty much everything out there over the last 25 years. We use only one products after 8 years of success and not callbacks. There is a Liquid butyl rubber made by epdm coatings. What we like about it is that it does not need a primer for any of the roof types we have applied it over that goes for metal, BUR, epdm, foam but NOT silicone. Also it is a one coat application so we close much more business with this product because we come in as the lowest bid! It is a solvent product so primarily the reason it last all the years. I guess every product has a particular use but as a roofing company we want to use a product that will last and has a history of success. Looking forward to your future videos thank You
alright mate. When it was first done, that pipe was supposed to be painted with bituminous primer, then would get a couple of layers of torch-on (2mm, then 4mm) up to 6 inches above the pipe so it forms a collar. So, although they've already paid 8 grand for 'the pros', it doesn't seem like they actually knew what they were doing. Anyone can do nice easy flat bits, but it's the details where it really matters. A roof like that, done properly could literally be used to keep water in a swimming pool without ANY of it getting through at all. Shame really, there used to be some really talented fckrs doing this work back in the day. Love the vids mate, keep em coming 🙂
Around three years ago, we tried a product out on flat roofs called Polyurcoat, there were lots of problems. All we did for weeks on end, was to go back and fix each roof, with Rinus shield.
Very true. Had ours done by a diligent couple of guys who came recommended, it still looks uneven and rough. Sometime after, I and a friend did the Selco all-day course on glass fibre roofing. We, and the rest of the students did decent jobs on our little projects. The teachers did something mindboggingly good. Clearly, you can do a decent job but I know I would not do as good a job on my own without being an assistant to one of the teachers for at least a dozen roofs. A lot of such training is a day - you do OK - then you're on your own and standards slide
Interesting because just today I recoated a concrete garage roof. Last year I did it with one coat of Evercryl Grey but ran out and finished it with Bostik Flexacryl Grey. Since then the Evercryl had cracked in a few places and begun to peel where I had coated it too thinly over the previous layer of bitumen. But the Bostik Flexacryl was still good, so today I put a second coat of Bostik's Flexacryl over the whole roof. I'll be checking it again next year to see how it stands up to another British winter.
It is interesting, and I am seeing this video just a couple days after we have recoat a previously waterproofed concrete rooftop with liquid coating and reinforcement of our own
Like most trades you get good and bad, a good roofing company would really need to strip this put in roof vents to let out the moisture trapped in the concrete through ingress of water. What youve done looks good now but in two/three years someone will be doing it properly with a professional system. Good "temporary" repair though but not permanent, it will have more cracks than a Jack Whithall gig in a couple of years once the UV have haf its way (despite what it says on the tin) the customer obviously didnt want to spend a lot. Theres an old saying, you cant polish a turd....but you can dip it and roll it in glitter. Good effort for a repair👍
It seems that alot of negative comments on youtube are possibly from "professionals" who might be losing work these days considering the information available these days to your average homeowner
Right, fair play for having a go as a hands on fella. Few points. Wet on wet rule of thumb 2kg per m2, fleece, 1kg per m2. Laying the fleece over the first layer of liquid, you must fully embed the fleece (missed in the video) take your roller and dry roll the fleece till you see the liquid coming through it. Then apply the top layer. If you don't do this the roof will debond and come up in winds, likely to happen here unfortunately. Secondly mouse holes in the felt laps. Patch to have 150mm laps onto area. Don't use the fiber as it's for difficult details only. Cut a square of fleece amd do 2 layer wet on wet as above. 3rd rule. Go to a manufacturer such as Bauder and ask them to spec the roof. The guarentee is insurance backed and covers products and workmanship for 20years minimum. Roofing is full of have a goes and pretenders. Go to a commercial contractor that's doing large scale projects, they will do your roof and do it properly. We are such a contractor.
Acrylic fibre coatings and Polyurethane coatings don't perform as well where there is ponding water or gutters , I would advise to check these areas regularly
Used Acropol years ago and now there’s loads of product on the market (fibre paints) and they mostly look and smell the same. Great stuff. Good on a old chimney breast. Paint over it once dry, never no it was there.
Fleece backed single ply membrane would have been best for that job. We would only use liquid solutions in tight channels or difficult detailing. Hats off to you for persevering with it over a larger area. And reference to having the experts in before. They obviously didn't do a very good job.
Looks good. We have just found out the issue with our front porch. There was a gap left so the water runs down the outside wall. Just need to figure out how to patch it but can see some of the obs has rotted away. I might be able to patch it with this stuff.
We have pooling water on top of a felted roof covering, which has been put on top of a poured concrete roof, which drains the wrong way. What product / method should be used to level out the liw spots? Presume it would be best to remove the old felt, rayher thancover over with another product?
I Did The Same As This Video, After 3 Years Start Cracking All Roof, It Is Good For Cool Weather Cities But Not Good For Hot Weather Like South Florida. Amén.
How long does this product last before you would need to reapply? Is there a warranty period? Didn't see this information mentioned on the product website.
Great video Roger, This looks like a great product but to patch up the liquid roof I have spoken to Sika and they suggest that you may need a "re-activation" product before applying further liquid roof. Does sound like rather simple maintenance for the DIYer like me but must know correct way of adding more layers (or patches) - can you confirm?
I need to do this to my garage roof the felt nearly 20 years old now and starting leak into garage i don't want to spend thousands on refelting it when I'm going to build a extension over it in a few years
So there's two methods to spread that. We call them "dip and stick" and "slop and mop". Dip and stick is when you dip your roller in the bucket and spread it out, slow, thin, likely uneven, takes way to long bit saves material. Often good for a top coat. Slop and mop is when you pour it onto the roof and use your roller to essentially mop it around until it's covered. Thicker, faster, much better in every way except you use twice as much. Will last longer come out better. Best way to do bottom coat.
I used stuff like this with fibres in years ago and it's bloody good stuff. But in the end any prick builder or architect who puts a flat roof on a building wants shooting.
Flat roofs are always a bad idea, because they always have or will get tiny depressions where water can stand, which feed fungus and encourages people to walk on them, then leaks are literally guaranteed. I was a little surprised than the roof wasn’t given say like one degree’s angle and the depressions hunted down, but then I'm no roofie.
My new house has a flat roof conservatory, and whoever did it was useless. The felt is just an absolute bodge job and obviously leaking. Dont really want to have to pay for a new roof so this is exactly what im going to do myself. How long can you expect the product to maintain its integrity? Im going to apply it very thick. Maybe even let one lot set then re-apply another coat?? Or is that pointless?
Will this stuff stick to roofing lead? Roofers bodged my fibre roof by trying to lay fibre on top of lead on the edges of the flat roof where it meets a pitched roof. Unfortunately they didn't prime the lead first and the fibre has now lifted away and water is getting in!
Great video thanks, Is there something in the range to deal with pooling/puddles. Im going to recoat my flat roof this summer and would like to build up the areas of pooling so they run off with the rest of the water.
Used similar to fix garage roof , it lasted a couple of years but cherry tree above it so bird muck and cherries sitting on it along with a dip where it puddles was too much and I had to get new roof along with beams etc and went fibre glass so job is a good un now. But I think it would work for a normal repair where there is not such a harsh environment.
I'm quite surprised that if they had professionals in & they paid £8000 to have the job done I would have got them back in to correct the problems (just saying) even after a couple of years they still shouldn't have had that many problems with the roof but great video to show what you can do to make it more waterproof than it was or to get a bit more time out of an old roof with problems and a DIY er can repair
I am trying to repair my flat roof. I have applied the adhesive to the roof. When I lay felt onto the adhesive do I have to peel off the thin plastic sheet from the felt first? Absolute beginner here😮😮.
Hi, i think you are the guy maybe has answer to my problem, i shingle a flat roof with shingles, it is only 8 by 12 feet( 2,5 M. by 4 M.) roof, and because of my mistake in the first place the roof leaks, now can i put something on top of the shingles to fix the problem, this is only a shed ( storage for my ATV) .Should i roll Liquid roof on it in a nice sunny dry day ?
Yes they are amazing. What is so difficult about putting up some pipe brackets? You can see where one has pulled out of the boss and is pissing down the wall
Gawd! ..... I wish I'd seen this a year ago..... tried several products on my leaky roof, just seemed to make it WORSE somehow ...... So I ended up putting a Tarpaulin over it and fixing it around the edges .... Now THAT is a bodge-job ... but it IS holding ... So Far - Touch Wood :-)
Great video, I have a garage with a concrete roof cast in three sections. I have tried everything to seal it but the joints always leak after about a year. Would I need the fleece to span the joints and compensate for the movement?
Hi, Thank you for the informative video. I had an extension done some 5 years back and my builder installed a GRP flat roof and used the 'Cure It' prodcut. This is now flaking in places and there Is a small leak somewhere that I cannot locate. I feel that the leakage only happens when we have heavy, windy rain. Do you know which Everbuild product will be suitable to repair the cracked and flaky bits please? Will the Evercryl (with the fibre bits) be suitable? Any help and advice appreciated
