And then the were two

The job center's flat sedum roof continues to amuse me. Two, not four as last Friday, men came today. Two other men than before, but from the same roofing company. They laid out some sort of carpet on the roof, one man lifted the edge and burned with a gas flame underneath, released the mat and the other man rolled a small round rolling pin over the carpet edge. And it was raining all the time! I say, that I do not really think they get it waterproof this time either .....