Rendering a Concrete garage

[Freerider]

Alright guys, just been to look at a job to render a concrete garage, you know the ones that are built out of pre moulded sections that are bolted together, anything in particular I should be doing to correctly render over this?

Cheers dude!

 

[Runswithscissors]

Warrior is the man - he has done quiet a few recently!
he will be along soon I bet!

 

[Nisus]

Are you using sand & cement on it freerider ?

 

[Nisus]

I know you'll need plenty of mesh :RpS_wink:

 

[Runswithscissors]

http://www.plasterersforum.com/ston...3-some-brick-effect-jobs-using-wallcrete.html

have alook at these - OK wallcrete - but priciple is the same!

tape up joints - basecoat and mesh and then top coat! or WALLCRETE! LOL

 

[Runswithscissors]

just make sure the concrete walls are stable!

 

[Nisus]

Thought he said it was a garage :rolleyes)

 

[Freerider]

Yeh in sand and cement dude! I wasnt sure if it needed EML over the lot, or and SBR coat before rendering, wasnt sure whether the joins between concrete sections would be an issure or not with cracking?

Ive seen Warriors stuff, the guys an absolute plastering legend! sick stuff!!

 

[goody]

On a slight tangent, I've just used lafarge aqua board( orange) on tanelised studs to renovate my concrete sectional garage. Used parex maite & mesh with roughcast sprayed acrylic coating. Looks like a block work garage now as the type of finish is the last thing you expect on boards. Rendering onto the concrete directly, microgobetis & parex thin coat system.

 

[Runswithscissors]

Nice one Goody

If the walls are in bad condition that is the way I would advise you do it (with a slight difference...LOL).

you can put some acrylic rough finishes onto boards (with basecoats and mesh) - just get approvals before doing it.... Lots of residential jobs need them to match local housing for planning permission in existing well built up areas....

Did you run it right down to the ground or concrete garage base?

Sounds like you have been busy on your own house - nothing like showing off your skills on your own place (as well as having a play!). are you going to post some pictures?

Freerider - if you want to do a battened and boarded wall with S&C - get in touch with me and I will advise how to do it!

 

[Freerider]

Externally battened and boarded matey?

 

[Runswithscissors]

Yes mate - make sure you use a suitable board for the render you use! (not internal gypsum boards!)

If the concrete panels are not true, this way will flatten them all out.

But if the panels are fairly true - it would be cheaper to tape and joint the concrete joints (like in Warrior's wallcrete pictures) and render direct....

 

[Freerider]

Prob gonna go with the taping the joins and rendering as normal dude, Im not a massive renderer so excuse the twenty questions! What would be used to 'tape' the joins? a strip of eml over each then bedded in with Sand n Cement?

As far as the render adhering to the concrete, can I render over with no prep or would an SBR splatter dash be the ideal? dont want it failing, I ******* hate sand n cement!

 

[lilharbs]

Would go with a sbr slurry mix mate.that will control the suction alrite.

 

[Runswithscissors]

Sorry Freerider... I'm a render board specialist!

I would suggest you cut some basecoat mesh to 300mm strips to make the joint mesh...... other than that you need one of the other Spreads on here to help you with mix and process onto concrete walls

Good luck!

 

[warriorupnorth]

Rider, is the garage dashed or plain faced, do as richard said with the joints, then fully mesh the whole unit in your baserend, i would use an high polymer render if poss mate, if your mixing your own then nice clean plastering mixed at 4:1 using a gauging solution of sbr /water mixed at 4:1 and an handfull of fibres if poss, top in weaker mix. you can modify mono in the same waywith the sbr/water mix as well if you wish, and obviously it will need priming/scudding if theres no key, and there is the option that goody adopted lath and aquapanel, base ,mesh, and top in prefered finish

 

[Freerider]

Cheers Warrior!

4:1 mix for top coat too? and also SBR in top coat or is that just base coat? never added it to mix before meself! as far as meshing the whole the goes, you talking about that mesh I've seen you guys press into the base coat with the bagged renders?

 

[warriorupnorth]

Yes mate alkaline resistant mesh ya can get it off e-bay, avoid the cheap chinese s**t tho, top in weaker top coat using sbr mix add lime if you wish

 

[Freerider]

Cheers matey! Im assuming sand and cement rubs up ok using SBR in the mix? just have horrible thought of it doing what plaster does when PVA gets caught up in it!!

 

[Arti]

Cheers matey! Im assuming sand and cement rubs up ok using SBR in the mix? just have horrible thought of it doing what plaster does when PVA gets caught up in it!!

Put some pics up Freerider so we can see how ya how the jobs progressing.....:RpS_thumbup:

 

[Freerider]

Haha ..Sounds a little sarcastic cos of the twenty questions.. but if ya serious I will if I get the job! was getting advice on best solution before I put the estimate in!

 

[Arti]

Haha ..Sounds a little sarcastic cos of the twenty questions.. but if ya serious I will if I get the job! was getting advice on best solution before I put the estimate in!

Im being gen up marra. It would be good to see..........:RpS_thumbup:

 

[Redman]

Just one thing to say wallcrete it :RpS_thumbsup: