Backing Out A Whole House

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oasis

oasis

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Just been to see a job .. the Whole house is to be backed out using what ever we feel best, its and old house all back to dusty bricks.. with all the old cables in black piped on the wall etc sash windows to make up to,looks very thick. but the skirting are off..

as u lot all no i have v. little experience in backing out so I'm looking to price the job to cover a spread to help out.. ie ill lay it on and he can rule off and show me how it worksalong the way.. with this type of job would you use hardwall or S&C? i think s&c would take at least 3 coats as its the deep around frames etc..

and advice on this kind of work would be cool!
 
Re: Backing Out A Hole House

Oasis,

I think you'll find sand and cement is slightly cheaper, plus if you crack it all out quick enough you can double back and start skimming without the need to seal the walls with PVA. If you do a whole house with hardwall you'll need to glue up every wall you want to skim.

where aboots is the job mucker?

SPREDZ
 
Re: Backing Out A Hole House

If your using gypsum backing, skim same day, dont pva and skim it.Alternativly ask a machine man politly to spray it with mp75 for you, for the right dollar of course ;) ;). Failing that mortar render, phone tilcon get the 24h re***d ready mix in tubs. Jobs a good un.
 
Re: Backing Out A Hole House

if you learn to float using sand and cement, using anything else seems easy.
 
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Not being funny either, there wont be many Plasterers willing to have you lay it on and let them rule it. I could,nt be doing with that.
 
Re: Backing Out A Hole House

ok thanks for the replays, i no S&C will be cheaper but with the hardwall can i make up the big thickness in on or 2 hits, rather than 3 days with S&C as in 3 coats 1 a day.. ill do what ever the guy wants me to do, i fort if i lay on the hardwall nice and thick should be OK for him to rule.. but then i dont no do i!haha

but yea ganna stick a price in just trying to work out the best way to allow for the plasters wages to be paid plus i will just price my self in as a lab for the backing out stage, then i will prep and skim the lot with him :-)

looks like some hard areas were there are loads of sockets and door edges and door frames meet ect!
 
Re: Backing Out A Hole House

as long as the external walls have a cavity and theres no damp issues use what you want if its all single skin you should use sand cement really mate
when you say the cables are piped on the wall are they covered in flat conduit or running through a pipe?....also how heavy are some of the frames etc if the cables are over 20mm on all the walls youll need a heavy scratch coat on all the walls ..they might have set it out for dabbing mate
 
Re: Backing Out A Hole House

Exactly how thick is thick Oasis? Sand & cement is cheaper and nicer (my opinion) to work with than Hardwall and you can get up to 30mm on in two coats and you can work right through the property with it without needing to PVA before you set ???
 
Re: Backing Out A Hole House

oh no the cables in the pipes are the old style ones been there years! it is quite thick. he dont wnat it dabed out.. so has many people had to do a 3 coats S&C job?
 
Re: Backing Out A Hole House

oasis you do seem to push your limitations if I were you id pal up with somone whoos got experiance in floating you could seriously get your bell ringers burned here
 
Re: Backing Out A Hole House

Float it in s+c as above once you can do that you can float anything. Also as above after you float the whole house in s+c you can turn back and skim with no need to pva.

5-1-1 all the way mate, if your worried about damp mate waterproofer in the scratch.
 
Re: Backing Out A Hole House

If it was me I would'nt seal the walls just a light spray for the water bottle.
 
Re: Backing Out A Hole House

SkyZOO said:
surley u got seal the walls if the bricks are dusty....
Click to expand...

no need to seal Walls,
just dust off with sweeping brush
& dampen down.
I usuall use the same brush in big bucket of water prior to s&c or hardwall.
 
Re: Backing Out A Hole House

carlos said:
Float it in s+c as above once you can do that you can float anything. Also as above after you float the whole house in s+c you can turn back and skim with no need to pva.

5-1-1 all the way mate, if your worried about damp mate waterproofer in the scratch.
Click to expand...

Personally I wouldn't bother with the lime, in fact I never use lime for internal work.
 
Re: Backing Out A Hole House

carlos said:
Why? I use it as I find it butters up the mix nice.
Click to expand...

I don't use it as I get a good bit of muck without it, I don't have to spend my money on it and it can create more suction than I want. Do you leave your S&C for five days before setting to allow it to cure or do you skim it green?
 
Re: Backing Out A Hole House

i was taught to skim it green, what does every one else do?
 
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I no its wrong but always green. Just too pushed on time to leave it and go back.
 
Re: Backing Out A Hole House

If you skim while its still green the S&C will still be shrinking but the finish won't be, and although the wall will probably look fine the finish will no longer be adhered to the render. This is why when people go to strip their wallpaper and the skim comes off with it, sometimes many years later, but not always.
 
Re: Backing Out A Hole House

do you use waterproofer in youre s/c before you skim or do you wet it down andy?
 
Re: Backing Out A Hole House

spunky said:
do you use waterproofer in youre s/c before you skim or do you wet it down andy?
Click to expand...

I use 2 capfulls (off a 5 litre tub) of waterproofer per bag of cement, more because it's a good plasticiser not as a waterproofer. I've never had to water a rendered wall down to set it. I once rendered a house out and because I had so much external render to do I didn't set it for 3 months, when I did it went really well and the only bits that needed wetting were the heads which always go really dry.
 
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what waterproofer do you use? as a rule i never use it , but on the odd occasion that i do use i have problems.
 
Re: Backing Out A Hole House

Pug said:
what waterproofer do you use? as a rule i never use it , but on the odd occasion that i do use i have problems.
Click to expand...

I use whatever I have for my outsides at the time, I've used Feb rendamix, Cementone freeflo, B&Q own brand (same as Feb) and Everbuild 3:1 in the last few years but like I said for internal work I'm not trying to waterproof the render as I like suction when skimming. All these waterproofers work well outside though Pug.
 
Re: Backing Out A Hole House

Back to the question if it is an old house, solid walls built in lime morter then the render should go back in pure lime morter, but as we know this dosent often happen sometimes due to ignorance but normaly due to cost and the time factor invloved and a lot of spreads scared to use it, if it is a newer build with cavity walls spray it with one coat.
Lucius.
 
Re: Backing Out A Hole House

If I was you Oasis I would take this oportunity to have a good practice with both backing coats. I would also spend the time formings screeds.

I would look at this as a way to improve my skills and not just another job.

If I didnt take home as much money each day because I was taking my time, I know that when the next one comes along I would be confident in doing a good job in good time.

Just make sure when the customer is watching you let them think you know what your doing!!
 
Re: Backing Out A Hole House

I think it might be a good idea to do it 2 coat work , roughly scratch it 6-1 with fibres and waterproofer then next day top coat it with 7-1 using plastiser and the screed method and devil float , it takes years to float coat properly but at least this way you should get the time to learn , as long as you keep the thickness of both coats down to a minimum you shouldn't go far wrong ,best of luck.
 
Re: Backing Out A Hole House

whats the maximum you can go to without the need for lime churchy baby ?
 
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