“With a roof right over our heads,” sang Bob Marley, but most of us rarely give any thought to the roof over our heads. And yet the roof of your building is one of its most important components, providing shelter to all who live and work under it, and saving the building from the worst ravages of weather and time. New technology means that roofing materials are also increasingly ecofriendly. So whether you’re looking for commercial or residential roofing, you can not only ensure shelter for yourself, your family and co-workers, but also make your building more environmentally responsible. How…