I'm hoping someone can offer advice with regard to my leaking roof. My garage is, i believe, a 1980s kit one with a corrugated asbestos roof. Over the years it has become very porous. I have tried the usual bitumen at joints and then an expensive paint-on preparation which failed within weeks. I am currently looking at encapsulation on a website called asbestosafe. It's hugely expensive so I'm wondering if I have any alternatives. DIY is impossible for me. Many thanks.