This choice comes up constantly on extensions and elevation refurbishments, and the right answer depends heavily on what the existing wall is built from, not just on appearance.
How each one handles moisture
Render forms a monolithic skin bonded to the wall, and its performance depends entirely on that skin staying intact — any crack lets water in behind it, where it has nowhere to go and no ventilation to dry out through.
A ventilated cladding system sits on battens with an air gap behind the boards, so any moisture that gets past the outer skin can drain and evaporate rather than sitting against the wall. On a solid wall with any history of damp, that ventilated void is a genuine practical advantage.
Appearance and how it reads on the street
Render gives a seamless, monolithic look that suits a huge amount of existing Kent housing stock, particularly 1930s and post-war construction where render was the original finish.
Cladding reads as a distinct material change, which works well as a deliberate contrast on an extension against an existing brick or render house, but looks like an obvious addition rather than a match if the aim is to blend seamlessly.
Repair after damage
Render damage — a crack, an impact, a patch of blown coating — needs cutting back and patch-repairing, and colour-matching an aged render exactly is genuinely difficult; a visible repair line is common.
Cladding is repaired board by board, which is usually a cleaner, more predictable job, though matching an aged, weathered board to new stock has the same visual challenge in a milder form.
Access and scaffold requirements
Render needs continuous scaffold access across the whole elevation being worked, since the coats are applied and floated in sequence and cannot easily be done from a tower moved section by section without visible joints.
Cladding can be installed more incrementally from a tower moved along the elevation, since boards are fixed individually, which occasionally makes it the more practical choice where full scaffold access is constrained.
Lifespan and what eventually fails
Render's failure mode is almost always cracking that lets water behind the skin, after which the render coat itself — not the wall — needs attention. On a sound, well-detailed wall this can be a very long service life; on a wall with movement or damp already present, cracking appears much sooner.
Cladding's failure mode is usually at individual boards reaching the end of their life through weathering or impact damage, or at the batten frame if moisture has been getting past the boards for years unnoticed — which is why the ventilated void behind needs checking periodically, not just the visible boards.
Common questions
Is render cheaper than cladding?+
Generally yes for a straightforward flat elevation, since it avoids the batten structure and air gap cladding requires. The gap narrows on complex or heavily detailed elevations where render's own preparation work grows.
Which is better on a wall with a history of damp?+
A ventilated cladding build-up generally copes better because the air gap lets moisture escape rather than sitting against the wall behind a hard render skin. Any existing damp should be diagnosed properly before either finish goes on.
Can cladding be added over existing render?+
Sometimes, subject to the render being sound and the wall able to take the additional batten fixings, but it needs assessing case by case rather than assumed as a straightforward overlay.
Get your elevation assessed
We'll look at your wall construction and any damp history before recommending render or cladding, and quote in writing either way.