If you are upgrading your loft, the more insulation you can install the better, but typically you should install at least 240mm of Thermafleece CosyWool or UltraWool. / a natural fibre insulation.
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If you are upgrading your loft, the more insulation you can install the better, but typically you should install at least 240mm of Thermafleece CosyWool or UltraWool. / a natural fibre insulation.