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Then add the mechanics: Retrofitting Traditional & Listed Buildings What areTraditional Buildings? Traditional vs Modern Construction Blog Ideal Sequencing & Knowledge Base Solarwatt modular battery storage Solarwatt modular battery storage Solarwatt modular battery storage Post World War I housing began to built from two individual skins of brick leaving a small 1” gap between.  Architects realised that brick absorbs moisture, and that houses were suffering from internal damp after long periods of wet weather.