In article 0273960b-684d-404b-9849-912e5e640775
@k30g2000vbn.googlegroups.com, says...

Yes there is. The stuff comes as a flat roll. They bring a machine
that forms it after it's been cut to length. I don't see any
signifcant advantage.
http://uk.ask.com/web?q=joint+free+g...=0& o=0&l=dir


There's a van up the road from here that does it. Looks like something
from the Keystone Kops, a gutter considerably longer than the van
emerging.

--
Skipweasel - never knowingly understood.