I am of the opinion that roofs at majors are not a good thing - one of the things that make the majors what they are is the consistency of conditions - including the elements. Rain and wind have no idea what year it is, and if it was good enough for Jimmy Connors, and Rod Laver and Pancho Gonzales and Bill Tilden, it should be good enough for the modern supplicants to their thrones in tennis heaven. But the US Open could ill afford to fall behind all three majors in this regard, not to mention the atrocious run of luck that saw so many men's finals pushed to Monday over the last 10 years, so the structure of the roof will make its appearance for the first time in 2015, with the roof itself to follow possibly next year.