the company is National Tent & Awning, Inc, in Elkhart, Ind.
but the canvas is clearly out of warranty, but they might be willing to repair it if you sent it to them.
or you could try Bear Creek Canvas.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC