Re: Wiring a Helix for DCC

Stephen Lamb
 

I sealed all surfaces and edges of the plywood segments with a 50/50 water/PVA mix.and have not experienced any problems with expansion or contraction although the monitored humidity fluctuates between 45% and 84% with temperatures between +5degC and 24degC. The shed  has automatic frost protection that kicks in at +5degC. The inner walls are lined with plywood to inhibit condensation and are constructed with vapour barrier membrane/50mm polystyrene insulation and 50mm air gap as so are the walls and ceiling. There are adjustable slots in the ceiling to provide ventilation.

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