I promised an update...
Well the roof is on, cut from 6mm MDF - sealed with diluted PVA, gaps then all filled with exterior grade acylic sealant. Then 10 year primer applied - as a second seal. Tonight a first coat of black paint, to get the feel for the building but also as another layer. The edges will need to be black anyway as the tar paper will only be applied to the top surface.
Does is need a ventilator? I'm tending to yes, but it'll be fiddly although I have a design in mind using 6 and 12mm MDF.
More on the blog: http://ejklr.blogspot.com
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