I'm looking for a fire retardent paint for a timber clad annex I would like to paint the annex a mid/dark grey colour and then have an exterior fire retardent clear coating over the top if that's possible Alternatively if you do a mid/dark grey fire retardent paint all in one that would cover everything that might be the better option Do these fire retardent paint covering also treat the wood or would the timber cladding need a wood treatment prior to fire retardent paint being applied. Area to cover is 60m2