I have a terrace that has been recently covered with a bitumen based product (This one, if you can read german). My problem is that is black and it get's very warm during the day, making it uncomfortable. It also gives a bad chemical smell when it gets very warm. I would like to paint it brighter, but don't know with what. Is there any paint that can hold on top of bitumen? What other options would I have to cover it? I live in an area where it rains and gets below freezing in the winter.
It seems similar enough to "blacktop" (asphalt, tarmacadam, etc...) to apply the advice given in this greenhouse manual (page 7) - basically to dust with portland cement (get white rather than gray, if you can find it) and then sprinkle/mist with water. Certainly the product linked appears to be congruent with common driveway blacktop sealer. I have only read the advice in question, not tried it.
Tennis court toppings should also work, I believe, and are commonly available in green, blue, or red - and possibly many other colors.