Hi All. Getting closer to installing the 1.25″ Roxul on plywood sheathing along with the 1″x 4″ horizontal strapping. Vertical metal cladding is the final layer.

Anyone have tips or experience with such an install? Recommended fasteners & installation method for the horizontal strapping ? Looked at the Heco therm screws, but they are only available in 200 mm length which is expensive and overkill.

Thanks in advance.