Breathable Emulsion Paint for interior walls

Breathable Emulsion Paint for interior walls

Breathable paint is such a commonplace term these days with plenty of greenwashing confusing prospective customers all over the industry. There is such a massive sliding scale of what is ‘actually’ breathable, but you can rest assured that the paints listed below are some of the best around. Whether you need breathable paints for old houses, or modern, there is plenty of choice. 

If we don’t have breathable paint, the moisture can build up behind the paint (due to most paint being made from plastic) which eventually destroys the plaster, which can cause no end of issues. Damp walls cause mould and mildew, which must be avoided. 

Breathable paint for lime plaster: If painting over lime plaster, Auro 344 is ideal as it is a lime based paint, although Auro 555 is compatible if you want colours. 

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Showing 21 products
Natural Emulsion Paint, Colours - Auro 555
From £55.00
Natural Emulsion Paint, Colours - Auro 555
AURO’s highest quality natural coloured emulsion. Our hero paint & top selling.  Premium natural paint...
Premium Natural Emulsion Paint, White - Auro 524
Premium Natural Emulsion Paint, White - Auro 524
From £5.00
Premium Natural Emulsion Paint, White - Auro 524
AURO’s highest quality natural white interior emulsion paint. Our top selling white paint. A highly...
Grafclean Natural Emulsion - Graphenstone
Graphenstone Colour Charts
From £5.50
Natural Interior Matt - Grafclean by Graphenstone
Top selling, coloured wall and ceiling natural interior emulsion paint. Hard wearing, washable and suitable...
Grafclean Natural Eggshell - Graphenstone
Grafclean Natural Eggshell  Colour Chart - Graphenstone
From £5.50
Natural Interior Eggshell - Grafclean by Graphenstone
Natural Eggshell paint for wood and walls. Breathable, odour free and non toxic. Easy to...
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Lime Paint & Lime Wash by Lime Earth Paints - Colours
From £4.00
Lime Paint & Lime Wash by Lime Earth Paints - Colours
Modern lime paint by Lime Earth Paints for interior and exterior walls that allows buildings...
Clay Paint, Colours - Auro 535
Clay Paint, Colours - Auro 535
Clay Paint, Colours - Auro 535
Clay Paint, Colours - Auro 535
Clay Paint, Colours - Auro 535
Clay Paint, Colours - Auro 535
Clay Paint, Colours - Auro 535
Clay Paint, Colours - Auro 535
Clay Paint, Colours - Auro 535
Clay Paint, Colours - Auro 535
From £53.00
Clay Paint, Colours - Auro 535
Ready-to-use coloured High-grade Natural Clay paint for walls and ceilings by Auro, available in 96...
Clay Paint, White - Auro 331
Clay Paint, White - Auro 331
Clay Paint, White - Auro 331
Clay Paint, White - Auro 331
Clay Paint, White - Auro 331
Clay Paint, White - Auro 331
Clay Paint, White - Auro 331
Clay Paint, White - Auro 331
Clay Paint, White - Auro 331
From £5.00
Clay Paint, White - Auro 331
This highly breathable Natural Clay paint is a specially formulated and beautiful paint, especially suitable...
Heritage Paint - GCS by Graphenstone
From £8.50
Traditional Lime Silicate Paint - Heritage GCS Interior by Graphenstone
Interior lime based natural paint for normal plaster, lime plaster, gypsum, brick, stone, tiles, as...
Modern Exterior Lime Paint - GCS by Graphenstone
From £8.50
Traditional Lime Silicate Paint - Heritage GCS Exterior by Graphenstone
Exterior lime based natural paint for lime render, brick, old paints, brick, mortar, concrete and...
Airfresh Photocatalytic Wall Paint by Auro 328
Airfresh Photocatalytic Wall Paint by Auro 328
From £5.00
Airfresh Photocatalytic Wall Paint by Auro 328
A scientifically developed white natural paint by Auro Paints that breaks down airbourne pollutants and...
Earthborn Claypaint
Earthborn Claypaint
Earthborn Claypaint
Earthborn Claypaint
From £4.50
Earthborn Claypaint
A luxurious, ultra-matt finish for interior walls and ceilings. Its unique clay recipe results in...
Lime Paint - Auro 344 White
Lime Paint - Auro 344 White
Lime Paint - Auro 344 White
Lime Paint - Auro 344 White
Lime Paint - Auro 344 White
Lime Paint - Auro 344 White
Lime Paint - Auro 344 White
Lime Paint - Auro 344 White
Lime Paint - Auro 344 White
Lime Paint - Auro 344 White
From £5.00
Lime Paint - Auro 344 White
For your well-being! Traditional mineral paint based on aged slaked lime, in professional quality with...
Auro 327 - Anti-Mould Paint
From £5.00
Auro 327 - Anti-Mould Paint
A lime-based anti mould emulsion paint by Auro with a higher pH value to effectively prevent...
Auro 303 - Mould Resistant Silicate Paint
Auro 303 - Mould Resistant Silicate Paint
Auro 303 - Mould Resistant Silicate Paint
Auro 303 - Mould Resistant Silicate Paint
Auro 303 - Mould Resistant Silicate Paint
From £5.00
Auro 303 - Mould Resistant Silicate Paint
Our top performing natural anti mould emulsion paint by Auro Paints.The problem solver for interior...
Auro 326 - Chalk Paint
Auro 326 - Chalk Paint
Auro 326 - Chalk Paint
Auro 326 - Chalk Paint
Auro 326 - Chalk Paint
Auro 326 - Chalk Paint
Auro 326 - Chalk Paint
From £5.00
Auro 326 - Chalk Paint
An economical, off white super matt paint. Hygroscopic to allow good breathability for walls; this...
Economy Natural Emulsion Paint, White - Auro 321
Economy Natural Emulsion Paint, White - Auro 321
Economy Natural Emulsion Paint, White - Auro 321
Economy Natural Emulsion Paint, White - Auro 321
Economy Natural Emulsion Paint, White - Auro 321
Economy Natural Emulsion Paint, White - Auro 321
From £5.00
Economy Natural Emulsion Paint, White - Auro 321
Economy white natural emulsion paint for walls and ceilings. Not quite as bright white and...
Auro 505 - Grip Coat (Fine)
Auro 505 - Grip Coat (Fine)
From £5.00
Auro 505 - Grip Coat (Fine)
Problem solver for all difficult substrates: This solvent-free primer with a very fine granulation provides...
Cornish Milk Mineral Paint (Coloured)
From £15.00
Cornish Milk Mineral Paint (Coloured)
Cornish Milk Mineral Paint is a water-based decorative paint with an ultra matte finish. It...
Auro 506 - Grip Coat (Granulated)
Auro 506 - Grip Coat (Granulated)
Auro 506 - Grip Coat (Granulated)
From £5.00
Auro 506 - Grip Coat (Granulated)
Problem solver for all difficult substrates: This solvent-free, granulated primer provides better adhesion for follow-up...
Earthborn Ecopro White Matt Emulsion
From £5.00
Earthborn Ecopro White Matt Emulsion
Earthborn Ecopro Matt Emulsion is a low odour, environmentally sound alternative to conventional emulsions. Suitable...

How is breathability measured?

Fundamentally, breathability is measured using an SD value, which is known also as “equivalent air layer thickness”. The lower the SD value, the more permeable the paint is for water vapour to have the ability to pass through. This is a good thing, we want moisture to be able to exit the walls (through the paint), as this stops mould and mildew growth.

Are clay paints breathable?

Clay paints are also very breathable and a common choice.

What is a good SD value?

Anything below 0.5 is great, and more than enough for most homes. This 0.5 Sd value means that the paint “has the same vapour resistance of 0.5 metres of still air”. SD values are put into classes, and SD Class 1 shows the highest level of breathability (SD value of less than 0.14m)

SD Classes of Breathability

SD Class 1 - Highly Breathable - 0 to 0.14m

SD Class 2 - Moderately Breathable - 0.14 to 0.5m

SD Class 3 - Limited Breathablity - 0.5 to 1.5m

SD Class 4 - Low Breathability - 1.5m+