How to apply Flashband

A step-by-step guide on how to apply Flashband - the market leading, self-adhesive flashing tape from Bostik.
Please refer to product and safety data sheets for full instructions and precautions in use. www.bostik.co.uk

[@Jizzlewobbwtfcus]

I bought a different brand but the guy at Wickes was EXTREMELY helpful. However I always like to watch videos as I am a beginner woodworker. I was looking for some plastic fabric to cover the join at the top of the roof of the birdhouse I have been building for my father but could not find anythign suitable. Today I found this and this video was INDESPENSIBLE! Incredibly easy to apply. I'm WELL Chuffed! ty :D

[@jamiepalzeaird3013]

I used it all around my window holes n plywood joins on my shed to keep it sealed used a heat gun before pushing it on all places and it's worked great good enough for my man cave 👍

[@H4M24UK]

Not just roofing, I once used this to seal a hole in a bucket. Patched it with flashing tape used heat gun to seal the edges and I've got a working bucket again 😂

[@nonsheep5823]

Bloody tight arse love it

[@faroukkhan6777]

Excellent great product,, it works, heat up the place where you going to apply it, but cut the peace u going to use,, first, Don't put too much heat on,, rub it in to where needed,, 👌

[@patriciagallagher8198]

Thanks for your help 👍 🙂

[@jacksmall2959]

That bloke running a Stanley blade through the flash band directly on the felt roof😂 wonder how many people will follow this guide and end up cutting holes in there roof😂

[@dennisjorgensen3446]

I thought exactly the same... lol

[@davehowley6000]

So did i

[@jukkaikomi1763]

Classssss 🤣🤣🤣

[@bernardmartin1794]

Just watched this clip. Couldn't believe it. What poor workmanship.

[@Rajanasarali]

Hi great video. Can you advise me i didnt wait for the primer to dry up and stuck the flashband on top straight after applying the primer. Does this mean the flashband would not have stuck. I cant check as it is a rented home.

[@AndrewHelgeCox]

What you you think of people using a heat gun? When I tried it, the bitumen seemed to become completely liquid under the outer skin of the tape. I was worried I was making thin spots as I pressed the tape down after heating.

[@andrewgrayland9510]

Anyone know if you need to put primer on top of the suggested additional mastic or if that product is already adhesive enough to attach the flashband directly to it?

[@jezmck]

@bostikuk at 00:19 you mention corrugated roofs, but is there a video of this in action? I can't see how the flashband would conform to the shape.

[@nelljamina419]

I was planning to use this on a small leaking part where my flat roof meets the wall. My question is, in the next couple of years, when we get a new flat roof - will this leave a real mess on the brickwork?

[@thenegus1990]

If you use the primer then that will stay where you paint it but could Prob a my be covered up when they fit the new seal from flat roof to wall when they do the new one

[@gordonalexander1639]

Can you use this in fibreglass roof.... getting water behind the gutter.... thanks

[@paulashford4155]

I am not a roofer but this does seem like a good product. But looking at how they use lead for flashing... lead looks the best choice overall to my layman eyes.

[@allenperera6158]

anyone know whether cement/mortar reacts corrosively with spandek flashing?

[@unclelink]

Not heat?

[@lewisdite981]

I’ve just applied this to 2 leaks in my loft space, a site manager told me to add CT1 adhesive to the perimeter of the flashband.. anyone tried this or advise against it ?

[@harmanscott]

In the video, the numpty installer cuts the flashband on the felt roof with, as recommended, a 'sharp knife'....thereby demonstrating how to put a slit in the roofing felt, and of course the need for more Flashband....

[@paulbackhard6315]

Have you any idea how much pressure is used on a knife to cut flashband compared to cutting roof felt ? He wouldn’t cut through it .

[@Rajanasarali]

Hi you seem knowledgable. Can you advise me plesse. I stuck flashband directly onto wet primer as i have never done this kind of stuff before and didnt watch a video. The home is a rented oroperty therefore i cant check if it stuck. Can you tell me after the wet primer wouldve dried would the flashband tape have stick.

[@creationmark]

I tried sticking 300mm flashband to OSB and there was no adhesion. The wood was dry and dust free. Any suggestions as I've already wasted 1 metre and it's not cheap. Thanks.

[@BostikUK]

Hi @creationmark, please contact our technical team on [e-mail] or 01785 272625 who will be happy to help with your query. Thanks, Bostik UK.

[@kraznayaploshad]

Had the same problem but on what appeared to be some kind of fibre covered roof. Didn’t stick in 3 separate places. Will contact technical support and see if a solution is forthcoming

[@philipashton1443]

Do you need to heat it up in colder weather as in don't seem to stick?

[@alanpatterson2384]

Yes, definitely. On both surfaces.

[@AndrewHelgeCox]

What about using a heat gun to soften the bitumen?

[@Rajjjjjjjjjjjjjjjj]

You need to regulate the heat. I used an old steam iron to heat and flatten the band. The patch was on old deteriorating roof membrane that was quite porous and literally powdery. Yet the patch held on.

[@paultweedley2026]

Hairhair dryer on full heat, heat guns a bit aggressive, if it's a warm sunny day the heat of the sun should be enough.

[@ihgday6103]

I followed the instructions on a nice warm weekend. Applied primer first and waited to dry. Put on flashband and used roller to make sure applied. A few hours later it had fallen off. It is just glorified sticky tape. Which I doubt would last long in the rain. A waste of time.

[@BostikUK]

Hi David - we’re sorry to hear you’ve encountered problems when using Flashband. Please feel free to contact our technical team at [e-mail] if you’d like to discuss the issue further, they’d be more than happy to help. Thanks

[@caseycarver3272]

Why give a negative review of a product when it was more than likely your fault it didn't work properly??? You say you followed the directions, well obviously you did something wrong. Hundreds of installations with no problems then you have a problem with yours. That tells us that you were the problem, not the product.

[@johnbrowne7461]

wouldnt mind but this crap costs as much as lead !

[@stormytempest3907]

Its good stuff usually, used it myself, the best.

[@rottweiller8759]

You get you lead very very cheap then

[@cathalohanlon8765]

How would I put this on a pebble dash wall? Is there another product to use?

[@BostikUK]

Hi Cathal. Flashband wouldn't be suitable for a pebble dash wall due to the gaps making an uneven surface. You could use our Penetration Primer with Flexacryl, but it would depend on the type of application. If you wanted to discuss more specific details you can contact our technical support team: [e-mail]

[@MONTY-YTNOM]

I can't get the stuff to stay stuck

[@livestreaming7295]

Hello sir i was wondering. I use the flashband in my roof but there’s a process that i need to use silicone sealant and then i put the flashband but i notice on the box that there’s an instruction like this ‘Flashband is bituminous and must not come into contact with silicone sealant’. I was wondering what will happen?

[@dominicmackrill5953]

Explosion

[@johnnycassell2305]

@@dominicmackrill5953 😂

[@2icelollys1goat]

Good, cheap alternative to lead, but... it has little to no adhesive quality without primer

[@aaaaa4266]

Used this recently to clean brickwork for conservatory and it’s pealed off

[@BostikUK]

Hi @aaaaa4266, thanks for your comment. To speak with an expert regrading Flashband, please contact our technical team on [e-mail] or 01785 272625 who will be happy to help with your query. Thanks, Bostik UK.

[@markxkx8791]

Doesn't. stick at all without heat in my limited experience

[@AndrewHelgeCox]

The primer gets it to stick too.

[@deadlybow7408]

Water can still get down unelss u chisel the wall out

[@simontrotter2678]

A well known Lincolnshire Conservatory co. Used flashband on our conservatory 15years ago, at the time I was away from home and thought they were using lead , unfortunately I couldn’t get them to change it on my return. The flashband is still there (touchwood) with no problems.

[@mdon1662]

is this OK to go on lead and tiles anyone ??

[@BostikUK]

Hello and thank you for your message. Yes, it is OK to go on lead and tiles. You can follow the instructions on pack or via our Technical Data Sheet online: www.bostik.com/uk/en/catalog/product/construction/emea/uk/product-flashband/ If you have any other questions, you can contact our Technical Services team direct at [e-mail] Thanks, Bostik Team

[@paultweedley2026]

Up to 15 years watertight, interesting, anyone think it may last longer than 15 years or less?

[@buddhistsympathizer1136]

This voiceover . . . he says the very last word in every sentence really quickly . . . weird

[@jezmck]

Sounds to me like it's edited like that.

[@jcreswick]

A.i

[@anthonykinrade8642]

Bullshit!