Hi I Have A 1970 Mobile Home 12by60,and A Room 12by30. The Roof Has Been Sealed For 38 Years With Alum Seal With Fibers. There Is Such A Built Up From All These Years The Coating Keeps Cracking Open An I Get Leaks. I Try To Seal It Up Again With Alum Sealant,but In Two To Three Months The Leaks Are Back.the Whole Roof Is Getting This Way. Should I Use The Fiber Cloth An Recoat The Whole Roof, Or Is There Anything To Do For This Roof Beside Putting A Roof Over. An If A Roof Over Is What I Have To Do What Is The Best To Use.thank You Don Fl.