In more detail; The plain card sub-roof is first covered with a thin white PVA glue and water mix. I then apply the white 'DAS' in small thin sheets, about the size of a Oreo biscuit. Once the roof is covered, I use a modelling tool to smooth out the whole shape and even add 'sausages' of 'DAS' to the sides and lower portions of the thatch. Once I am satisfied with the shape (this is done by eye after studying actual thatch roof shapes on the internet or historical books) I 'comb' the 'DAS' with a modelling tool, using a dragging action at first and then a prodding action when I am detailing the roof. The over-hang (the exposed section at the bottom of the thatch) is prodded with a cocktail stick in a jabbing motion. I then leave it to dry (or cook in the oven).
Once the main shape is finished and completely dry I add the topping or apex, the bit that covers the top of the roof. The rough shape is modelled with a 'sausage' of 'DAS', pressed in to the existing thatch, then 'combed' with a modelling tool and later trimmed back to the up-turned shape you see. The small indentations are meant to represent the way that thatch is held down by weaved straw or thatch.
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I am pleased with the finished thatch effect, which should really become apparent once the building is painted.
Tony
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