Replacing the plastic parts on the Roof

msmith1199 wrote:
... but I can't paint the Fantastic Fan covers or the Shower Skylight. I guess I could, but that ruins the skylight effect of them....

Actually, there is a great benefit to painting the skylights -- it cuts the solar heating effect dramatically (as well as prolonging the life of the plastic/plexiglass/lexan).

My bathroom used to get very hot when the sun shone on the skylight. I thinned down some Kool Seal elastomeric roof coating with water and painted my skylight. Voila -- nice and cool in the bathroom now, and it still provides plenty of diffuse light filtering through the thinned paint.

Incidentally, I think this is much better than the reflective 'pillows' stuffed into the skylight from inside, which leaves the bathroom pitch dark. The paint blocks the infrared and ultraviolet rays before they pass through the plastic, rather than reflecting them back out (which gives the plastic a double-dose of radiation).

Since I seldom stared at the clouds through the skylight anyway, there has been no downside to this modification.

I also used the Kool Seal (undiluted) to paint all the other plastic on the roof (which was the very thin kind as mentioned above). The coating gave the parts a lot more thickness and they don't feel nearly so fragile now.