If it s a cement based render then there is no point in breathable paints on the outside as it s not a breathable layer that you are painting.
Breathable floor paint uk.
Cement renders are very hard most modern renders will be cementitious.
In the case of timber floor structures the most common underlying problems relate to rotten timber joists.
Adding some kind of breathable insulation to a floor base is key to it performing to modern standards but the additional build up required can be hard to accommodate image credit.
Isovit silicate paint by seciltek is an exceptionally durable and highly breathable paint for masonry having an sd value of 0 01 m.
The majority of our internal paints can be applied over existing paint finishes however a breathable paint is only as good as the surface it is applied too so the problem could still persist.
Breathable paints are those which allow water and moisture to permeate through materials.
On period buildings that have been painted in the past with a non breathable paint and where the paint has bubbled and come away from the building it is necessary to remove as much paint as possible and then re paint with breathable paint.
Alistair nicholls repairing wood floors.
This paint provides a strong gray finish that s resistant to weather uv chemicals and hot tires making it one of the most durable concrete paint options for indoor use.
Breathable the membrane of the waterproof paint should be breathable to prevent the build up of damp and water pressure within a substrate.
2 the earthborn paints are very good paints easy to use and suitable for both lime and modern plasters.
Providing a smooth durable finish the rust oleum 225359 concrete floor paint epoxy shield is a single part epoxy paint that s great for sealing and protecting any concrete surface either indoors or outdoors.
Resistant to water solvents acids alkalis and salts.
Two pack epoxy floor sealer under coat this epoxy floor paint first coat is designed to prepare the surface of concrete cement and non ferrous metals.
And expert advice on hand if you need more guidance.
The isovit silicate paint system which requires a base coat of silicate primer for most applications provides a high quality long lasting finish for use internally and externally.
This in turn will avoid any further restriction in breathability ensuring that the paint will stay on.
If it s a very old crumbly almost soft render it s more likely to be lime based and breathable paints are worth considering.
This gives an ideal base for epoxy topcoat or acts as a seal coat for bare concrete floors.
Peeling wallpaper or crumbling plaster is a clear sign.
Allowing water vapour to permeate the membrane does not encourage damp but does encourage stability.