New render ontop of old render

Nicklebop1

New Member
Hi, I have been plastering for a while now but not done much rendering. I have the chance to send and cement render a house I am working on but not sure about what prep work needs doing.how should I prep the old render to take new ontop? Is it best to take old off and start from scratch????
 
Hi, I have been plastering for a while now but not done much rendering. I have the chance to send and cement render a house I am working on but not sure about what prep work needs doing.how should I prep the old render to take new ontop? Is it best to take old off and start from scratch????
Tbf it is best to take off the old and start again from scratch, but having said that there are modified products available now to apply over an existing sound render too but thickness of both combined could become an issue
 
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