English Heritage say a company importing Chinese stone has purloined an English Heritage video explaining how to lay Collyweston roof tiles and put it on its website. English Heritage say they are taking action.

English Heritage like to make as much as possible of their material freely available to assist the conservation sector of the construction industry, but they take exception to it being used in breach of copyright, especially by a company they say fails to mention that the stone it is selling is in fact imported, not indigenous Collyweston stone.

English Heritage have not named the company involved.