17/11/25: Today I used up the rest of a second bag of cocciopesto. I finally closed the gaps in the wall with a mortar mix of cocciopesto:promptcement at 2:1, plus some hemp shives. This should buffer the temperature difference between cold and warm, and reduce condensation thanks to the improved insulation of the wall. The cocciopesto in the cement makes the mortar more elastic and more permeable to vapor, while the hemp shives provide slightly better insulation. The romancement offers better adhesion to the stone/iron and allows greater layer thicknesses to be applied in a single pass.
The good thing about 100% natural mortar/cement is that you can dispose of the leftovers in the environment without hesitation. It can even improve the soil because no artifical and plastic additives are used.
#waterpipe #wall #diy #craftmanship #renovation #natural #lime #cocciopesto #romancement #hemp #sustainability