Sheet applying process

Claim 1

A PROCESS FOR COVERING AND INSULATING SUBSTANTIALLY HORIZONTAL SURFACES OF A BUILDING OR THE LIKE WITH A WEB OF INSULATING MATERIAL HAVING A BITUMEN COVERED AFTER BOTH WHICH ADHERES TO THE SURFACE TO BE COVERED AFTER BOTH SURFACES ARE HEATEDM COMPRISING THE STEPS OF SUPPORTING THE WEB OF INSULATING MATERIAL IN ROLL FORM DIRECTLY ON THE SURFACE TO BE COVERED SO THAT A PORTION OF THE BITUMEN COVERED SURFACE OF THE ROLL RESTS ON THE LATTER SURFACE; ROLLING THE ROLL OF INSULATING MATERIAL ALONG THE SURFACE TO BE COVERED SO AS TO UNROLL THE WEB OF INSULAATING MATERIAL AND SO THAT THE ROLLED WEB OF INSULATING MATERIAL HAS AT ANY INSTANT DURING THE UNROLLING THEREOF A BITUMEN COVERED SURFACE PORTION DIRECTED TOWARD AND ABOUT TO ENGAGE A SURFACE PORTION OF THE SURFACE TO BE COVERED; AND CONTINUOUSLY HEATING BOTH OF SAID SURFACE PORTIONS DURING THE UNROLLING OF THE WEB OF INSULATING MATERIAL SO THAT THE SURFACES ARE AT ELEVATED TEMPERATURES AT THE MOMENT OF CONTACT WITH EACH OTHER.