I want between 10 - 20 good quality well researched and written articles on the subject of roofs, roofing contractors, roofers, roofing services, flat roofs, roofing materials, roof tiles, slates, leaks, repairs etc. The articles are to be informative and useful as opposed to search engine fodder. Must be native UK writer, ( ideally with some prior knowledge of the subject ) Between 500 - 1000 words per article, dependant on what's necessary for the specific subject. Willing to pay over the odds for very good work. PM with prices and examples of your work please.