By chance I happened to receive this latest blog post today in my email from Softwash UK - Can sodium hypochlorite blrach roof tiles?
Quite an interesting read and their opinion is no it doesn't and colour changes are due to natural weathering / erosion etc.
To be honest I don't know how 'expert' they actually are, or if more a case of being self-appointed experts with products to sell??
Quite an interesting read and their opinion is no it doesn't and colour changes are due to natural weathering / erosion etc.
To be honest I don't know how 'expert' they actually are, or if more a case of being self-appointed experts with products to sell??