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Posted: Wed Nov 21, 2007 8:33 am
by Rich H
Morning lads. I need some advice.
A client has asked me to render an existing full brick wall, 6' high. The wall is free-standing on the boundary.
I've only ever rendered walls I've just built!
Do you think the wall will need any special prep like a PVA wash before I put the scratch coat on?
Posted: Wed Nov 21, 2007 8:34 am
by Rich H
Should have said the wall is only 8 years old, is in good nick (bricks and pointing) and has no moss or algae growth.
Posted: Wed Nov 21, 2007 6:17 pm
by lutonlagerlout
pva and chicken wire,i expect ronafix do something special but will the job hold it cost wise?
plenty of waterproofer in the mix and you should be ok
cheers
LLL 
Posted: Thu Nov 22, 2007 5:23 pm
by Rich H
Thanks LLL. Good old PVA.
Doesn't stick astroturf though... (another story!)
Posted: Sat Nov 24, 2007 4:11 pm
by simeonronacrete
You're right; Ronafix will help in two ways.
1. Ronafix mixed with cement will bond render to brick
2. Ronafix added to the render will make it waterproof or watertight depending on how much you add
Don't use PVA where it's damp or wet. It's not designed for that. It won't survive.
As to whether it's worth paying the price of Ronafix, that depends on the problems / embarrassment of render debonding, cracking, debonding.
See the Ronacrete web site for more on a product that'll match your own professional image and reputation. The link below will take you straight to the product specification you need.
Ronafix for waterproof rendering