The redecoration of the interior of churches and historic buildings can prove to be a real problem as many of these buildings have had work carried out be it repairs to the internal walls where lime plaster has been substituted with a cement and sand render or the walls have been recoated over many years with different coatings that are often not suitable for such an application. Problems that are often common on these old buildings are crystalline salts residues that migrate out of the walls and form efflorescent salts on the surface, these salts will cause bad adhesion for any new coating be it oil based or acrylic water based.
Often old limewash or distemper coatings have been applied some with a chalky finish that again prove to be very difficult for paints to adhere to, this is where Classidur Tradition is the answer, Tradition has zero tension which means that there is no internal stress in the paint meaning that Classidur will not try and peal off the wall or ceiling, another added benefit is that Classidur will adhere to chalky surfaces and even surfaces that are contaminated with dirt, nicotine and soot. A further benefit offered by Classidur Tradition is that it has been especially formulated with an added biocidal that will eliminate mould or algae a common problem in churches as there is often a lack of ventilation and air movement. Classidur Tradition also offers a very high degree of permeability that will allow any moisture in the walls, caused by leaks or a lack of a damp proof course in the wall, to transmit through the paint and evaporate into the atmosphere.