phal with air roots only

[highwar]

I have a phal that 2 months ago had root rot .
I cut all the roots since all of them had rot. it has 8 good air roots, two of them I put into the media and the rest I spray with water.
It has been one or two months since I cut all of the roots and nothing grows.
The media is bark with coco husk (small pieces),mostly bark.
I couldnt find root hormone in my country or its too expensive and it costs like a new orchid)

My temp in my country is around 31-33 at day time and 25-26 at night with 60+ humidty.
I put the orchid a week ago outside so it could flurish with the high humnidty that summer brings I just hope its not too late.

I put it in a small greenhouse with a lot of air movments and shaded place.

Any thing else I could do ? since two months and no root growth