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I am about to start my build of a 46 meter squared garden annex. Given all the issues with supply chain and material costs I am looking at various options in terms of materials.
Please could someone help me understand what insulation I would need to meet regs if I was to build the external walls out of 215 Thermalite blocks (no cavity) with cedral cladding on the outside?
many guidance would be greatly appreciated?
Please could someone help me understand what insulation I would need to meet regs if I was to build the external walls out of 215 Thermalite blocks (no cavity) with cedral cladding on the outside?
many guidance would be greatly appreciated?