A monument to a roofer that lets in the rain: Theaster Gates’s Serpentine Pavilion

The Chicago-based artist has punched a huge hole in the roof of his Black Chapel. Could a downpour add one further thrilling sonic dimension to its programme of Gregorian chants, jazz recitals and Japanese tea ceremonies?A tolling church bell has joined the summer sounds of birdsong and tinkling fountains in Kensington Gardens, announcing the arrival of an unusual sacred space. Standing among the trees as a brooding black cylinder, this year’s Serpentine pavilion, titled Black Chapel, is o