Step 7: Plastering
Plastering is done in stages; usually two coats inside and two coats outside. The mix is three parts of sand to one part of cement. A 50 pound sack of cement roughly equals one 5 gallon plastic bucket, or 6 shovels full of sand. Add more, or less water to get the consistency you need. Wear rubber gloves, because wet cement is caustic to the skin. Everybody around here mixes cement on the ground with a shovel.
The first step, using rubber gloves, is to rub cement through the fishnet from the outside to stick it to the rebar. That way, whatever you do to one square in the grid doesn't affect the neighboring squares.
Day one: plaster the outside as high as you can reach. Day two: plaster the inside. Day three: stand on a drum and plaster the outside as high as you can reach. Day four: stand on a drum inside and plaster, etc.
When you get to the roof, you have to start walking on the tops of the bamboo to spread out the cement. Little by little, work toward the center.
You don't have to finish the first coat completely before starting the second coat, from the bottom up. Eventually, you can start walking on the cement.
The skylight has clear silicone rubber stippled to the bottom side to make a frosted glass effect. The topside of the glass gets algae growing on it in our climate, so keep the topside free of silicone for easier cleaning. The glass is just glued in place with silicone. If you set it directly in the cement, heat expansion differences may cause the glass to crack. (A photo of the skylight will be added soon.)