Period property guide
Modern masonry paint and plastic-based coatings weren't designed for solid-wall, lime-built construction — and on a period property, the wrong paint can quietly cause more damage than the weather ever would.
The problem
Traditional lime render, soft handmade brick and timber-framed panels all rely on moisture being able to move through them and evaporate away. Modern masonry paints and cement-based products are far less permeable — they form a near-sealed layer on the surface.
Once that layer goes on, moisture that would normally pass through the wall gets trapped behind it instead. Over time that shows up as damp patches, blistering or peeling paint, frost damage to brick and render, and — in timber-framed buildings — decay in framing that's staying wetter for longer than it should.
Doing it properly
Painting over an existing non-breathable layer with a breathable product doesn't solve the underlying problem — the trapped layer is still there underneath. Proper removal generally means identifying what's actually on the surface first, then using methods suited to the substrate rather than aggressive abrasive stripping that can damage soft brick, render or timber in the process.
Once the surface is back to a sound, breathable base, it can be finished with a genuinely breathable product — typically limewash or a mineral silicate paint — suited to the specific wall it's going on.
Real examples from Suffolk
A Grade II listed 17th-century timber-framed house. Listed building consent covering removal of modern paint products from painted brickwork on three elevations, alongside cement render removal and timber-frame repairs.
A listed building consent application including breathable lime wash paint applied to the front elevation — a direct example of moving to a breathable finish on a listed property.
A Grade I listed 15th-century hall house on Water Street. This application covers replacement render and insulation — the kind of work that follows once an unsuitable existing coating has been identified as part of the problem.
Before you start
Removing paint, changing colour, or switching finish type on a listed building's exterior is exactly the kind of change that can need consent — see our planning permission guide for what that involves and how to check before work starts.
Non-breathable paint FAQ
Not usually. If a non-breathable layer is already trapping moisture underneath, adding a breathable paint on top doesn't remove that trapped moisture — the old layer generally needs to come off first.
Often, yes. Removing paint changes the external appearance of a listed building, which is exactly the kind of change listed building consent covers. Check with the council's heritage team before starting.
Common signs include peeling or blistering paint, damp patches that don't clear up, and a slightly plasticky or glossy sheen on masonry that should be matt. A proper assessment before starting work is the reliable way to confirm it.
Breathable options such as limewash or mineral silicate paint are generally more suitable for older, solid-wall construction. The right choice depends on the substrate and should be assessed property by property.
Not sure what's on your walls?
I can take a look, explain what's actually there, and talk through what removal and refinishing would involve before any quote is put together.
