Where to find Owens Corning 703 in Canada?

[Elusive Sounds]

I am planning to use Rod Gervais' partially decoupled floor system using OC703 in a floor. Has any recently found OC703 in Canada? Or failing that, a product that has similar compressive specifications? I'd rather stick with compressed fiber glass.

I'm on the east coast of Canada but will contact any Canadian supplier.

Thanks,
Marc