Once the firing is complete these tiles will withstand years of weather exposure when professionals properly install them on a roof.
Painting terracotta roof tiles.
Change all broken tiles.
Nutech elite terracotta primer has been specifically formulated to provide superior adhesion and long term performance over properly prepared unglazed glazed and vitrified terracotta roof tiles.
Since you cannot paint terracotta roof tiles here is the terracotta restoration process.
If the terracotta tiles are outdoors make sure the latex paint is labeled for exterior usage.
If painter claims they can paint a terracotta roof then ask for manufacturers data sheet and double check the product is suitable and guaranteed for terracotta coverage.
Also to mention that any product guarantee will be lost.
Terracotta roof tiles are created from clay and fired with a glaze to provide a long lasting protective finish that contains an attractive sheen.
The pros and cons of painting terracotta roof tiles november 4 2016.
Paint the terracotta tiles with latex paint.