22:32In the StudioTheaster Gates: Dream Whisperer for Old MaterialsBBC World Service Duration: 27 minutes Tue 9th May 2017, 22:32 on BBC World Service OnlineAvailable for over a yearListen nowWhy Theaster Gates is giving roofing material a new lease of life Show more GenresFactualArts, Culture & the MediaFormatsMagazines & ReviewsBrandIn the Studio Source: BBC Online