I took all my shade cloth off my orchid house - well it is winter inNorthern Europe !
Object was to get to the glass for a good clean - I used a pressure washer 120 bar, and was amazed how much dirt I got off both sides of the glass.
But when I come to replace the shade cloth, I find I have forgotten whether it goes with the shiny side in or out ?
I can argue it both ways : on the outside it will reflect a lot of sunshine away from the greenhouse - ,keep it cooler, which is the object of the exercise.

Of course some light has to get in for the plants to grow, through the practically open spaces between the strips. Shiny side in would mean that light in the greenhouse tends to reflected back in rather than escaping.

So which do I do ? I think the former, but what do others think ?