Ceiling board

We are laying the ceiling board that is nailed to the rafters with stainless steel nails, it´s not going anywhere! Starting on the sides and then finishing on the summit. That´s Luis you see, the guy is just plain fearless. The holes you see in the last pic are for the skylight windows. They open and close for fresh air and easy cleaning. Three on the south side and one on the north for the bathroom that will eventually exist.