Besides using clay as a plug to stop mortar dropping, I am also experimenting with molding some bricks on site. It is a way of assuring a snug fit between the roof and the wall. I can't decide if I think it is a cop-out or if I am just exploiting the versatility of the material. The clay shrinking is again an advantage- the bricks are stuck for a day or so, and then they loosen themselves. Eventually, when they are dry, I will fire them. I am wondering as well whether there are other ways of finishing their surfaces, perhaps to try to get crisper angles.
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