The shine in this alis coat is achieved by adding mica to the mixture instead of silica sand as the aggregate. The mica reflects light, and different sizes of mica in the alis paint will give different results.
The cedar soffit on this straw bale house has a one and a half inch vent running the length of the overhang to allow for the air flow through the roof structure. The vent has screen behind it to prevent entry of insects or small animals to the roof cavity.