Jonzjob Posted July 23, 2014 Share Posted July 23, 2014 I am going to have to bite the bullet sometime soon and do a bit of crepi on the front wall of my workshop. Having done a bit of rendering about 3 lifetimes ago and having forgotteng everything I learned doing it!! What is the best way of both mixing the crepi, I have a bag of powder, and then of convincing it to stay on the wall?Anyone who would really like to give me a demo could expect a beer to lubricate their arm/shoulder/anything that needs lubrifacation [blink]Failing that, answers on a 50€ note or long answers on several of them then I could pay someone to do it [8-|] Link to comment Share on other sites More sharing options...
Pierre ZFP Posted July 23, 2014 Share Posted July 23, 2014 I shall watch this thread with interest as I too have an area of wall (not too huge fortunately) that could benefit from some crepi or similar, it is currently just cinder blocks (parpang?)love the phrase 'convincing it to stay on the wall' Link to comment Share on other sites More sharing options...
Théière Posted July 23, 2014 Share Posted July 23, 2014 I am confused, crepi is lumpy paint, or are you talking render? Link to comment Share on other sites More sharing options...
Daft Doctor Posted July 23, 2014 Share Posted July 23, 2014 The guys who di the crepi on our new house had a machine which mixed the bags of powder with water then it was sprayed onto the walls to give a rustic-type 'brut' finish. I believe you can then trowel it a bit to give a semi-smooth finish (taloché??) or of course smooth it off altogether. Most of the time was spent masking everything off the prevent an unholy mess, but the result was good. I'm sure you can hire these machines, maybe the bricolage places or builder's merchants might know? Link to comment Share on other sites More sharing options...
dave21478 Posted July 23, 2014 Share Posted July 23, 2014 The word "Crepi" has become a catch-all name for most kinds of exterior finishes that are not simply paint.Generally they are best being sprayed on, but for small areas its possible to kindof throw it at the wall by hand. I have watched it done to good effect but my own tries were less than impressive. It came out ok in the end but with a lot of waste.The shonky tool vendor lorries that send out cataloques with the junk mail and go round the villages selling cheap Chinese shart at higher than DIY shop prices usually have a hand-powered Machine a Crepir, which looks to have a hopper you load the goop into and you turn the handle which flicks it at the wall. Never seen one used, but given the state of most of these tool lorry wares, I can imagine the results being....not optimal. Link to comment Share on other sites More sharing options...
Théière Posted July 23, 2014 Share Posted July 23, 2014 They were known as Tirolean guns before the crepi'ists got hold of them and it's all in the mix or you get an awful mess everywhere, heavy to hold onto for too long as well. Link to comment Share on other sites More sharing options...
Chancer Posted July 23, 2014 Share Posted July 23, 2014 Don tons of it both the true crepi (textured resin paint) also the coloured render (enduit de renovation) and also the tyrolean (like taking a dump after a curry) and am currently redoing all my exterior facade for the second time.My weapon of choice is une crepinette from the shonky tool wagon and it still serves me well.You need a good compressor, 3hp minimum and that being an induction motor 3Hp (output) not a brush motor (2.2kw current draw when stalled and catching fire) and also you need to fit a vanne à sphère valve to the handle to stop the compressor draining.Its brilliant for crepi paint, quite good for tyrolean (dont bother with the flicker gun) and does a reasonable job of enduit de renovation if its mixed thin enough but you need a lot of coats to get up to a 15mm thickness.I have also used it for a gobetis scratch cement base render coat because i was useless at the throwing it up technique but it blocked a lot, then I bought a (forgotten the name) hopper gun which runs from a big compressor with un raccord pompier where you shovel up the muck from a wheelbarrow, thats a superb tool and wasnt too expensive really, in future I will use that for enduit de renovation.Finally the enduit de renovation is quite easy to put up with a trowel, its very creamy, I did an internal decorative finish with it to hide a brick chimney. Link to comment Share on other sites More sharing options...
dave21478 Posted July 23, 2014 Share Posted July 23, 2014 A Sablon gun? I borrowed one and got really good results from it, but it needed a towable diesel powered compressor to run it.I dont know if a domestic compressor would be up to it...perhaps in short bursts. I know my own one wouldnt as its far too small. Link to comment Share on other sites More sharing options...
Jonzjob Posted July 23, 2014 Author Share Posted July 23, 2014 Right, I have just had a look at the bag and it's 'Enduit de Perement Minéral Régional à la Tyrolienne, so what kind of curry would you recomend Chamcer [8-)]The wall area is only 9' 1" X 1.14m so I am thinking of pretending it a render jobbie and slapping it on with a trowel and float? It starts at ground level so the 'crepi won't have too far to fall and if I put a load of polly sheeting under it I probably won't loose too much either [B]Is it a good idea to leave a small gap between the bottom of the crepi/render/whatever it's called, or just slosh it on to ground level? You can tell that I am a complete perfectionist init? Link to comment Share on other sites More sharing options...
Chancer Posted July 23, 2014 Share Posted July 23, 2014 [quote user="dave21478"]A Sablon gun? I borrowed one and got really good results from it, but it needed a towable diesel powered compressor to run it. I dont know if a domestic compressor would be up to it...perhaps in short bursts. I know my own one wouldnt as its far too small.[/quote]Yup that is Dave, I couldnt remember the name, my pal has a petrol engined site compressor, probably 10hp, it has no reservoir as such except the tubular chassis which has a couple of vannes and raccord pompiers, he was going to sell it but I convinced him to keep it if I kept my sablon.It (the sablon) was very cheap from an E-bay seller I could sell it for a lot more in the UK.The drawback with the sablon and the crepinette is the weight, you are holding up close to 10kg for spraying, the proper pumped systems are much easier to use, I have nearly bought a couple of them at auction but would have needed to go into business to make a return from them.Jonzjob, the enduit tyrolean is just a finish to be sprayed or flicked on top of a (normally cement) render, it should not be used to build up any thickness or be put on with a trowel, it will not be stable and will crack, as a finish to cover up poor rendering it is excellent and long lasting.You need a crepinette to put it on, the clockwork ones are crap and you really need two hands to hold up the weight and a third to crank the handle. Link to comment Share on other sites More sharing options...
Jonzjob Posted July 24, 2014 Author Share Posted July 24, 2014 Oh dear [:(] It looks as if I need to get on and slap some cement render on it first then? I would assume that a scratch finish on the render would be best so the crepinette has something to hang onto? As I asked, is it best to leave a small gap at the bottom between the render and the floor?I think I will stick to spinning bits of wood when I have finally done this. At least they don't have to be stuck onto a wall! Plus, I know what I am doing [:-))]Anyone want better part of 20 kG of tyrolean stuff, going cheep (or does it yodel?) Link to comment Share on other sites More sharing options...
Pierre ZFP Posted July 24, 2014 Share Posted July 24, 2014 Oh dear indeed. I was getting all excited at the thought that I could cover up an unsightly wall. Rendering, along with plastering, is one of those things that I seem to be incapable of doing until someone invents an anti gravity machine.Maybe I could fix up some bardage? Now where did I put my nail gun .......... Link to comment Share on other sites More sharing options...
Jonzjob Posted July 24, 2014 Author Share Posted July 24, 2014 I'm not sure Pierre, but I don't think that you can nail rendering to a wall [8-)] I suppose that if you whacked enough nails in then the stuf would stick a bit better?Now were'z me wood an me lathe [8-|] Link to comment Share on other sites More sharing options...
Pierre ZFP Posted July 24, 2014 Share Posted July 24, 2014 [quote user="Jonzjob"]I'm not sure Pierre, but I don't think that you can nail rendering to a wall [8-)] [/quote]Challenge accepted ! [:-))] Link to comment Share on other sites More sharing options...
Chancer Posted July 24, 2014 Share Posted July 24, 2014 The tyrolean sticks really well even to an old smooth hard rendered finish.You can put up the enduit de renovation with a crepinette, you wouldnt then need a tyrolean as you can smooth it, trowel it or gratte it to whatever finish you want, its really nice stuff to work with, I have done one wall of about 15m2 and about the same métrage of my low car park walls, the real problem is putting on a proper thickness of 12-20mm, you need an awfull lot of coats, you will be filling the gun and lifting a heavy weight for as long as it takes to finish the job without stopping as you must keep it wet between coats, very very hard work.After my success on the internal chimney I would in future put it on with a trowel like traditional render, not the flicking action. Link to comment Share on other sites More sharing options...
Jonzjob Posted July 24, 2014 Author Share Posted July 24, 2014 My brain cell 'urts now Chancer [8-)] Just above you had said that it isn't a good idea to put it on with a trowel?The surface I have to cover is the red terra cotta bit. I nearly bricked my trailer in when I built it. I only noticed it when I had put the 1st course down and it would not have fitted through the door [:-))][:-))][URL=http://s47.photobucket.com/user/Jonzjob/media/Johns/Workshop3a_zpsc34310dc.jpg.html][IMG]http://i47.photobucket.com/albums/f180/Jonzjob/Johns/Workshop3a_zpsc34310dc.jpg[/IMG][/URL]Even on a good (?) day I doubt that I could get a better finish than the bricks, but after several years it would be nce to have it the same-ish colour as the rest? Link to comment Share on other sites More sharing options...
Chancer Posted July 24, 2014 Share Posted July 24, 2014 You cant put tyrolean on thick, its just a finish for (normally) hard render.I would buy chaux based enduit de renovation in the colour to match your existing, for a small surface like that i would (now) trowel it up and then gratte it before it dries to match the existing surface, I have also done areas that big with the crepinette but you probably have 20mm to make up and it will be long, long, long, finishing will be as above. Link to comment Share on other sites More sharing options...
osie Posted July 24, 2014 Share Posted July 24, 2014 I had some crepi work done, and the guy that did it first stapled chicken wire to the plaster wall.... he also put it on brick without the wire...both are holding up well... Link to comment Share on other sites More sharing options...
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