Distemper Paint for Listed Buildings: Traditional Breathable Finishes

Distemper is the forgotten paint of British interiors. Used in every significant building in Britain from the medieval period until the mid-twentieth century, it was gradually replaced by emulsion paints in the post-war decades and is now virtually unknown outside heritage conservation circles. Yet distemper remains the technically correct and aesthetically superior choice for painting the lime-plastered interiors of listed buildings and pre-war period properties. Understanding distemper — what it is, why it matters, and how to use it — is essential knowledge for any owner of a historic building.

What Is Distemper?

Traditional distemper is a water-based paint made from chalk (whiting), animal hide glue, and pigment. It is one of the oldest paint formulations known — versions of it were used in ancient Egypt and Rome. In its simplest form, it is literally chalk dissolved in a size (glue water) solution, coloured with earth pigments. The result is an extremely flat, chalky, matte finish — the softest, most beautiful paint surface available. When you look at the walls of a great Georgian or Victorian interior and wonder why modern paints cannot quite capture the quality — distemper is very often the answer.

Types of Distemper

There are two main types of traditional distemper:

• Soft distemper: made with chalk, size glue, and pigment. Water-soluble when dry — it can be wiped off with a damp cloth. This is the traditional specification for historic interiors and is technically correct for lime-plastered walls. It must be applied to a surface that has been previously soft-distempered, or to new lime plaster, and should not be applied over modern emulsions without stripping.
• Oil-bound distemper (OBD): a more durable version that adds a small quantity of linseed oil or other binder to improve washability. This was widely used in the early twentieth century and bridges the gap between soft distemper and modern emulsion. It is more forgiving and can sometimes be applied over existing surfaces.

Why Conservators Recommend Distemper

Conservation specialists and building historians recommend distemper for listed interiors for several interconnected reasons:

• Breathability: distemper is entirely permeable — it offers zero resistance to moisture vapour movement and will not trap moisture in lime plaster walls
• Reversibility: soft distemper can be removed with water, making it easy to strip and redecorate without damaging the historic substrate — a key conservation principle
• Compatibility: distemper is chemically compatible with lime plaster in a way that modern emulsions are not. Emulsions applied to lime plaster seal the surface, trapping moisture and eventually causing the plaster to fail
• Aesthetic quality: the flat, chalky surface of distemper has a visual quality that no modern paint can replicate — it absorbs and reflects light in a way that gives old interiors their characteristic softness

Applying Distemper in Practice

Distemper requires a different approach from modern paints. The substrate must be clean and free of any modern paint — if emulsion has been applied over lime plaster, it should be stripped before distemper is used. Distemper is applied with a large, soft brush (traditionally a wide distemper brush) in broad, overlapping strokes. It dries extremely quickly and requires confidence and speed. Two or three coats are typical, with the first coat diluted as a thinning wash. The finish is beautiful but requires gentle handling — it is not washable in the way modern emulsions are.

We have experience applying traditional distemper and soft distemper in listed buildings and historic interiors across London. If your property requires this specialist finish, request a quote or call 020 3874 2670 to discuss your requirements.