This time of year, a tarp is nice to roll open the ends for ventilation and light.

The sun can be too much even in Maine in April. I'm working with West system and mixing cup sized batches. It was all going well this weekend until I got into the sun. Then a cup of epoxy started smoking, and stiffened in just a couple of minutes.

Had to roll the cover back down over the work area. That's spring weather.