'Tis growing closer to a searing Canberra summer, and I'm tired of the
sagging length of shadecloth stretched accross the front of my
greenhouse. It's a couple of feet from the roof, and at best cuts the
heat and light but not as much as if it was protecting all of the
glass on that side. There has to be a neater way of attaching the
shadecloth, perhaps some sort of clip that would hold it reasonably
taut against the glass? Or might it be better to make a frame of
timber or pipe, and fix the shadecloth to that?

The lean-to greenhouse is aluminium framed, I'm reluctant to try
drilling holes into the metal for fear of cracking the long glass
panels.

What have other people done?