Solar Slab performing like a champ!

As you know, the slab was poured on Tuesday. The whole point of having the slab is so that it will absorb heat from the sun and help to warm our house in winter. Well, yesterday was a sunny day, and when I went up to the lot around 7:30 pm, and sat myself down on the slab, it was pleasantly warm. It stayed warm until after 9:00, too. Yippee! I look forward to seeing how well it retains heat when it has a house (and walls) around it!