DIY: How to fix, repair, protect and seal a felt roof and flat roof using Everbuild Black Jack
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- เผยแพร่เมื่อ 18 พ.ค. 2017
- We had a problem with our shed workshop flat felt roof leaking and needed a quick repair. Instead of replacing the felt roof we decided to use a product called Ever build Black Jack All Weather Roof Coating which will seal and repair the roof to prevent current and future leaks it also helps to protect the felt, at the time of this video 5 litres of this costs £17 at Toolstation. We needed approximately 1 and half tins for a roof that is 24ft x 12ft (length/width) which should give you an idea of how much you'd need.
This product can be used on a variety of materials including concrete, metal, felt and some plastics, and ideally you want to paint it on as we found using a roller can cause finishing issues as it contains little fibres so is best applied with a paint brush really and you must mix this thoroughly!
I hope this product review helps you, it sorted out problem out. If you like this video please consider dropping a like and/or subscribing.
Buy Ever Build Black Jack:
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how to seal a flat and felt roof - แนวปฏิบัติและการใช้ชีวิต
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Excellent video!
Thank you, nice to have you guys comment!
Did it fix the leak mate
It does work and stops shed roof leaks but it only lasts for about a year, I did mine last October and I've just had to do it again, because it started cracking and letting water in, just thought I'd post this to keep people informed.It is a good product but doesn't last as long as maybe it should,it is now £30 a tin, cheers
In case anyone is still interested, this product goes on well with a SOFT sweeping brush (the type you would sweep a laminate floor with). I bought a couple from pound land. MUCH MUCH easier than a paintbrush.
great advice, thanks for sharing it.
Thanks
Sorry to comment so late but can you link exactly what sort of brush you mean?
@@danburb0 A broom for sweeping flat floors
I can't thank enough for this vid.it literally saved my badly leaking felt roof.painted this on a fine sunny day last week n since then its been raining nonstop. And not a single drop of leaking.grt stuff.thank u dan.
I am glad it helped you, it's good stuff and works. Please subscribe as I am trying to reach 1k.
Builder wanted £800 to replace flat roof , 2 tins of “ with fibre” comes in 2 types with or without fibres, fibres stop it cracking over time. On offer atm tool station £16 with fibres. USE GLOVES! Used 1 tin let it dry over night, next day used second tin. Saved me £723.
Thanks for sharing
I've just been quoted 600 to replace mine so think I'm trying this first thank you, it has 2 big cracks in so need to look at patching first then cover with this paint, so the fibers
Thanks for this video! Literally saved me from stripping all of the felt of led my garden office (it’s quite a large shed). Had a leak last week in this horrendous weather. Put a good coat of this stuff on and it seems to have done the trick so far. I’m going to try and put a second coat on when the weather lets up again.
Hello Daniel, thanks for posting this video,my shed is just over two years old and has started leaking, it's January and I've just caught a dry day to put this stuff on, exactly how you did it, totally agree seems like a quality product and hopefully will do the trick, after reading some of the comments I'm sure it will, cheers
its lasted and works
Really enjoyed watching this video. Your commentary was to the point and has given me the confidence to do this job on my own flat roof. Now I just need to wait for a couple of dry days :-)
thanks and not too cold either, good luck.
Same here. Very useful info
Grat help for me, thank you.
In my case flat porch roof covered with felt started to leak. Following recommendations bought and gave 3 coats of "Thompson's 10 YEAR ROOF SEAL" in 3 dry days, above 10 deg temperature outside. First terrential rain and leak comes back.
Climbed the roof after the rain inspect the cover. Seemed healthy, but notice tiny spike. Trying to snap it actually started too peel entire coat and peeled coat from entire roof in almost one move!
But the worst thing was - it was dry on the top and wet underneath! It was working like kind of film letting water leak to the ground and keeping it there.
Following you movie i bough instead Everbuild Black Jack All Weather Roof Coat 5L and just one paint did the job perfectly!
Thank you guys! I should have come across this review sooner.
Many thanks for this I have the adhesive but will now get the coating as it seems like a great product and will save me stripping the shed roof felt....😊
Dan. Started on mine yesterday, but my old knees, hips and back will never be the same buddy. Ha! Ha! My bitumen was much thicker than that, but the same make as yours. I hope to finish mine tomorrow with any luck, it seems to work really well so thanks for the video once again.
Good stuff!
Excellent video, I think you might have solved my roof problem. Cheers mate!
Thanks, it certainly helped us. No problems since.
I've just done my 3m X 2.4m garden flat roof, the felt hadn't failed or no leaks but it was a nice day and the experts say this lasts up to 10 years plus.
I bought a 25L drum on eBay and used a garden soft broom to paint it on. Took me about 45 minutes.
Thanks for sharing your experience.
Thanks guys this will solve my one leak in my garden shed instead of re-felting the whole roof.
Spot on video. Used it to tank a vertical wall a few years back to block water ingress ( ultimately from a leaking gutter ) really a belt & braces exercise. Now watching this for a small non lead flat bay window roof, was harder to get hold off but will try Toolstation ( a mere 100 yards away!) 😊👍
£30 from Toolstation
Propper diy guy .... u wana try do it cheep get bitchmin 1st .... tbh if i was u id just re felt it lol tool staion etc all desinged to sell trade trade and u diy stuff
Nice one. Top tip. Just what I need! Thank you
No problem 👍
Great video guys, thanks. Happy Easter.
Thanks you too.
Having watched your video I have just used this product on my leaking garage roof, I applied 2 coats to seal a 12” long split in the existing felt , a small felt patch was then applied and a further 2 coats of the Black Jack applied over the patch and the result looks excellent. The product is very easy to work with and good value at £17.45 a can. Fingers crossed the leak has been stopped. Thanks for posting your video and inspiring me to attempt my repair !
Awesome, glad the video has helped you out!
Hi Rich - A year down the line now. How would you rate this product? Did it stop the leak. Storm Eunice damaged the felt roof on our kitchen extension, and a I just need a quick, cheap fix that will last 12-24 months until we can afford to have it done properly.
@@Marc-wg2mr I haven’t checked the roof since storm Eunice tbh but the repair up to now as far as I know is still fine.
Just wanted to share that I used this product after watching your helpful video. I'd started with the thinner 'Bitumen Paint' but this didn't do the job. I follower it up with 2 coats of this 'All Weather Roof Coating', and, fingers crossed it is holding up however one issue was: one of the problems with my roof is there's a lot of pooling of water - this product says that it will be resistant to rain almost immediately but the problem is that in the areas of my roof where the water pools, the paint has also run into these areas so is thicker. The paint may be showerproof instantly but where the water pools the paint has split to some extent - it still seems to be holding the water off but once it's dry I'm going to give it another coat of paint. I used a tar brush which was quick, but it might have gone on a bit too thick to dry quickly.
sounds like the underlying structure of the roof has a low spot, this paint is good but isn't a magic bullet to bigger problems.
If you found this video helpful please subscribe, it will help me a lot. I am planning to release more videos shortly.
2 years later, how did the roof hold out over time? I have a gentle pitched roof, no current leaks and was thinking to do this to buy me another few years till I am ready too properly re felt? Cheers
Very informative video. This stuff looks like the solutions to my problems. It’s amazing how much water can penetrate a loose felting nail or find that hole in. the felt.
Thanks for watching!
Great work lads
Great video thanks👍🏻I’ve just ordered a tin from amazon to do my shed roof with so I’d love to know did it rain just after you finished the video and when it did rain did it solve your leaking roof? Thanks 🙏
Thanks that’s helped me to do my shed now with these products easy do it 💪🏽
awesome thanks
I used a full size roller with a soft sleeve on the end of a broom handle, poured it on the roof and spread it around in no time. Also, although more expensive I found the Bostic product much better.
good to hear, the brush is all we had so used that.
Just a top tip,
Use a soft brush like what you use indoors, or a 5" paste brush, also, a company in wakefield called bc profiles sells a 25ltr tin of 905 for £43 plenty for 2- 3 coats but good video you got there in the end, 👍
Good advice thank you.
I'm not a fast mover and it does go off quite quick - I found that if I put the tin inside a bucket that had a few inches of boiling water in it; it gave me plenty of time to cover my 15 sq meter roof, without straining my wrist stirring every 5 minutes ;-).
good advice
I've used this & Roofix & the important thing is to mix it thoroughly. I now use a mixing tool [£10] in an electric drill, which is miles better than a stick! As I have a 20ft x 12 ft roof to cover, I will roll it on & not punish myself with a 3" brush.
true mixing it is important, we did the job on a sunday afternoon when shops were closed the roof was leaking so wanted to get it done before the rain that being said brushing will apply a thicker coat, however you can roller 2-3 times if needed.
Thank you very much for this!
You're very welcome!
So I’ve put new boards on the pre-fab garage roof. I’ve got felt on there now. Do i need to torch or do I just paint over the felt? New to DIY - cheers
Thanks for the video. Pretty good for 17 quid a tin.
Thanks for your comment, yes it's good stuff in fact it solved our leaking problem. I'd definitely recommend and use it again.
Can you put this on top a 3 layer felt as an extra layer of protection (4th layer almost)
Did you put any " scrim " along the joints first?
Good afternoon
I have a question for you.
On a flat felt roof we had a slight leak in one of the bedroom ceilings;
* We Bitumen painted the felt joint/seals (how long is the job good for?)
* We Bitumen painted the felt joints/seals and then a 2nd coat , a few days later, for the entire roof( how long is the job good for?)
It only caused a small leak and that was down to the recent 6 weeks of solid /hard rain/torrential rain.
Any words of wisdom would be appreciated.
Thank you
Thankyou very good and helpful video 👍👍
Most welcome 😊
Did it last and work ok .Thanks 🙂👍
nice one, it's good stuff
Brilliant helpful video
Thank you
Glad it was helpful!
Hi can I used this on a terrace house with a pitch roof made with tiles?
Great video .cheers
Thanks
After watching this I'm going to do my roof with this next week. Is it still working?
Hi Lee, thanks for your comment. Yes it's still working and in great condition, we expect this to last a number of years really and I reckon it will do. Probably best to get it done sooner rather than later as the weather is starting to turn cold now.
This is an economical solution to a garage roof i have. Have you had any problems with sunlight affecting the coating (cracking etc)?
Next project... even smaller brushe, that’s keep you in the business forever 🤪
Very interesting and thanks.
Do you need to sprinkle the stones or gravel over the roof afterwards or is it fine without?
Fine without but would certainly add some protection and stabilisation to the roof.
@@DanielJohnHowTo thankyou so much...brilliant video!!
would you recommend stripping back old felt first or just paint this stuff over the top? I have an old shed with felt that is in ok condition, but has started to go brittle and flake. I was wondering if paint straight over would be ok or if I should smooth it back slightly first. What do you think?
I would either brush the old stuff then use black jack, as it will adhere better and fill holes but really if the felt is that bad then consider replacing it.
I love your video
thanks!
I'm getting a new shed delivered soon, I'm thinking about coating the roof before applying the felt as the felt supplied is probably going to be thin, or should I just buy thicker felt?
coating the boards isn't a bad idea as it will stop the wood for rotting, you can lay the felt and paint this over. thicker felt would be better but we paid for good quality stuff and it didn't last that long.
hi daniel does blackjack work on insulating /waterproofing all felt shed roof including pitched roof (non flat) thank you
it will work on that, probably adds some insulation but not loads i honestly don't know
Good call guys , i have a leaking shed roof across the overlap this will do nicely instead of re-felting it all
yep and will provide further protection for you.
I used this after watching this video in May last year, had no leaks until now? Only used a single coat to be fair but used the whole tin so applied quite a thick coat, especially on the joins of the felt. Any recommendations, should I buy another tin and try and apply another coat inbeteen the dry weather or re-felt?
if you think another coat would be best and ensure protection then go for it.
Dan, Was about to re-felt my garage this spring, but seeing this it looks a better job, easier and cheaper. Did it work and did the roof become water proof again? Would you suggest a second coat? Brilliant help and very apt for me right now.
Yes it did work, stopped any leaks we had and also protected the felt you can always recoat it every now and then for added protection, thanks.
Blackjack works for a short term fix, but won't last long on a flat roof that gets sun all day in summer, it eventually just melts through the porous areas it sealed and you need more, it may work better on a flat roof that doesn't experience full sun all day long in the summer, or in places where its not so warm in summer, but as a short term fix it can help in some situations, it's just not %100 guaranteed to work in all situations.
thanks for sharing your advice.
I agree Vinnie,my shed is South facing and gets the sun all day and it has cracked,so the location is definitely a factor when applying this stuff, cheers
Did it work and is it still holding up ok
Hi Daniel,
Good video, i am planning to fix my felt flat roof next week.
Has your roof survived the latest heavy rain and snow?
Thanks, Marie
Yes it has and thanks for asking
I had the same problem but mine was coming in at the front and runing down the timber .and runing down the back wall so ive aded more felt to the front overhang but i am gona use this on the roof just for extra safe results .
Mine is currently doing this, I am going to have to do something similar.
Hi, i have the black jack DPM/damp proof membrane version, can i use that as a roof felt adhesive?
Not sure, best to use the proper stuff.
Will just black bitumen on its own cover a small ply roof? Thanks
If you are laying felt ontop then yeah it will help protect the wood but probably best buying this stuff or they do a version thats a felt adhesive.
How did it hold up? I'm looking for a solution to my leaky felt roof on my 12 x 12 home office.
still good.
Great video... Do you need to cover the entire garage roof or can you use it on a certain patch/join in the leak area... Thanks
Entire area in the video but you can use it to patch areas.
@@DanielJohnHowTo thanks for reply mate
Good video.. Have applied this black stuff but the roof still leaks. Any advice for this?
apply more, we had a simliar issue and it fixed it.
Hi can we use that during winter or it has to be summer time. Thanks
warmer weather is better for drying but you can use it in the winter
How is this getting on now - was it a long term fix or just a hack to get another winter out of the roof? Cheers!
I had the same issue with my roof before water was going through the felt but I corrugated it instead after for long term protection. Just curious did this work did it do the job you brought it for??
I've got a flat roof at the front of the house, although its not leaking its got stone chippings on but looks like its been up there awhile. I'm going to wait until the better weather and coat the roof before putting stone back on, I'm wondering wether to use this or not?
Thanks for sharing your thoughts
it did work, and we did consider corrugated but at the time i didn't have the money to do it but corrugated is best long term so you've done a good thing.
@@DanielJohnHowTo it was only a small area i corrugated but I would have had to reconsider if a larger area like you say it would have been more costly.
Thanks, I will look into this product when the weather picks up 👍
Iv just used most of a can 4+ litres. Didn’t find any fibrous material in it. Are you sure it wasn’t consolidations of solids that needed more stirring to break them up and disperse them into the liquid? Just wondering if one of us has a dodgy can?
it's funny you mention that because i have purchased two tins of this stuff recently which is a long time since making the video and didn't notice any little bits this time either. Perhaps it was a dodgy tin or they changed something, not 100%
Daniel thanks for the reply. You may be right about them changing it. Iv seen some types in other videos still of the black jack brand which do have fibres to reinforce it and stop cracking.
Thanks for your time.
How is it looking after 5vyears
Brilliant video, thank you. Would you recommend cleaning / sweeping the roof first before painting?
Yes, absolutely
@@DanielJohnHowTo Hi Daniel, I watched your video and ready to piant the roof of my shed, but not sure if its ok, can I send you the image of roof then have your comment? Thanks. Eric
@@aaronmaoeric1 What's the issue with it?
@@DanielJohnHowTo I am not sure roof material is ok to paint waterproof coat or not, if you can share email address I will send image to you, Thanks
Followed your cleaning the roof advice and off I went (not literally). Easy to apply,great coverage and really pleased with the results. Will add another coat. Thanks for the tips etc.
Hi Daniel, do you think this would work on gravel asphalt roof. our roof has gravel stuck with tar and perhaps i could scrape the grave out. i am trying to patch a leaking kitchen roof
probably will yeah, just stick a large amount of it in there and let it set.
alternatively, dig out/stick something in hole then cover with this stuff
I've got pooling in one section of my roof and leak right underneath there at the joint. Will this solve it?
Waheed Malik it should do you will want some decent weather and to clear the area before applying this stuff
@@DanielJohnHowTo I hope so bud. I've been distressed and then came across your video!
What can you use for the cracks (I have a few on the outer part of my flat roof)before applying this paint ???
what type of roof is it?
@@DanielJohnHowTo it’s felt
Hello Daniel, could you tell me please did this waterproof roof paint work? I note your didn't lay down a primer first. Would be good to have a follow up video 3 years down the line.
We didn't need to lay down primer, and yes it worked and is still working.
@@DanielJohnHowTo thanks for your reply and merry Christmas
Can you fill spilt new post with this product thanks.
sorry?
Bought the heavy duty rough type of felt for my shed. So after 10 yrs it must be loosing it"s oils, had pin hole leaks. Being the rough type of felt was wondering if, a coat of unibond first would make a small tin of blackjack go on easier and further. Cool vid by the way.
I haven't used unibond before.
Just done my workshop with this after watching your video last week, hopefully it turns out as good as yours once dry
I used this a few days ago on a felt roof. However, on a couple of areas where water settled after rain and then dried, the coating came off. Any solutions?
wait for a dry few days and try again
@@DanielJohnHowTo do you think I'd need 2 coats on that bit?
Thanks for this. How long did this repair last?
years
How has it held up long term guys? I have a relatively new large roof like yours where the guys didn't not seal the joints and I think I have leaks from the nails in there wholes. I was hoping something like this would fill and seal where its penetrative as I can't see the leaks being caused by anything else at this stage.
Many thanks for the video. Chris
the job has lasted well and worked, give it a try
Hi guys . Great video. !! 3 Years on how is are the roof leaks. ?? . As I have a slightly larger workshop/storage , as yours . felt etc . a replacement roof ,is too costly at the moment . Heavy rain ..results in water ingress . Would be good to know ,as we may treat the roof ready for winter ? cheers
No issues.
It would be really helpful to hear from you as to if this worked and stopped a leak. I have a leak in a small porch to the house ans are looking for a similar product that might work. The other products are about £50 quid for 5kg so I am interested hear if this worked
It does work and if you read through some comments you will also find other questions answered as well.
Thanks for your time and advice
if it goes on my carpet o won't have to worry about getting it clean cos my wife will murder me 😂
yep, use old clothes and gloves etc because this stuff gets into things and won't come out easily, good stuff though.
Used this on my garage roof five years ago, it's just started lifting in certain places so doing it again.
thanks for your comment
Does it dry or remain sticky? We have cats that walk on the shed.
it dries out forming a protective layer after a while, it's not like anti-climb paint.
Nice video!Would this work on a flat concrete roof that is leaking in your opinion?
Yes but make sure you work it into the surface, apply enough coats and it has a good time to dry etc. You can use this stuff on metal and all sorts etc.
Thx a lot for the fast reply! What is the coverage with one 5l tin?
I can't honestly remember, it should say on the product information when you buy it although it does go quite far. if you are doing a large roof it may be worth getting another tin just in case so the job can be finished, take it back if you don't use it etc.
great vid is the roof still water tight ?
Certainly is, can't recommend this product enough.
Brilliant video, thanks you, did it work as you wanted. I was considering doing mine rather than re-felt?
MrWayno79x works great but new felt isn’t always a bad idea and you can use this stuff in conjunction
Thank you that's really helpful! Is this still lasting or did you need to do anything else to your roof?
still lasting, we check it every now and then.
What about now August 2023
Hi guys, good video, can you tell me did it work and has it lasted? Thanks.
Yes it does
Any updates mate did you stop the leak?
Its been a few years, How did it do, last?
Can you get these in a small tester pot size
not to my knowledge, they do sell smaller tins though
Hi Daniel, aware this was 2 years ago, just wondered how it’s still holding up? Felted my new shed I built from scratch last year, just had a massive down pour and noticed floor wet pretty much along where there beams run front to back. Layer felt across beams opposite way.
Job is still good, thanks.
Daniel cheers pal, grabbing a 5 litre tin next week
@@MOOSEIOD i bought ours from toolstation but check prices to get a good deal
Will try that. Is it worth putting more felt over too?
personally I would try more of this stuff, it worked for us.
Good job and can put 2 coat?
Many thanks
if you want to but let the first coat harden off.
@DanielJohnHowTo OK I see many thanks
Hi Daniel.howz ur roof now. Does this thing really work. My roof has started leaking.thinking of using this once the rain stops completely.
Yes it does work, still working good.
Did it work???
I had the same problem in my kitchen flat roof leaking
I'm going to buy 5l then paint the whole roof hopefully should sort my leak
But the only problem is UK bad weather
it will be fine
GreAt post
thanks, it's ideal weather for doing that sort of thing also.
Could you do an update, see how this product is panning out after a few months
Hi Eve, I could do. I can tell you it's lasted and is doing a great job currently though.
Well, providing they had no more than a light shower it probably worked, add high winds and driving rain and they'll be back to square one, or worse!
@@audimanuk well looking at recent updates its still holding out. And I'm sure over the last 3yrs they've had more than a light shower.
@@markramsell2722 More by luck than judgement, it would probably still be watertight without golightly mincing about with his little brush, a pointless exercise.
@@audimanuk Bruce, what would you do to repair a felt roof leak?
This is the video people told me to come and have a look at so here gose nothing.
It will last for 12 to 18 months. For best results use a horse hair brush or a hand sweeping brush. Normally it will take 24 hours to dry but if possible wait 48 hours befor second coat 😊
thanks is the video linked somewhere or talked about? just curious
@@DanielJohnHowTo someone was on about It on Facebook page
@@thomasbingham9648 thanks
and this will hopefully stop the leak on my angled shed roof thats been ok for two years and is now soaking thru ?
it should do, it fixed our issues
@@DanielJohnHowTo ive just had a mate look and the problem is a raised bubbles up bit of felt on the join, so ive been advised to seal it, if this stuff will be thick enough to briddge a small gap so to speak ill give it a try
@@wevsky it is thick stuff, you could always use some black gutter mastic to fill the join? then stick this on top?
@@DanielJohnHowTo i think this should do the job, ill gt the brush under the gap and apply as much as i can and coat the join form end to end and apply a little pressure it should hold it down.. in theory
Did you have any more leaks in flat roof
Please can you update us thank you
nope, all sorted thanks.