You will need to screw through the render to attach the new cladding to something solid. This in itself may be an issue or may not. If the render is flacking off and patchy it may result in uneven surface. The thickness of render and cladding may also not sit well with window frames etc. best to get the builder/cladding installer to advise on your specific conditions
Kate
Related Discussions
Vinyl cladding vs rendering
Q
what colour render is this? and garage/cladding etc
Q
Render and colorbond cladding for front facade
Q
Cladding advice for my exterior update
Q