Warm, Breathable Protection That Lasts Cork coating for homes across North Devon. Stop black mould, cut condensation, and protect against coastal weather — with a 25-year product warranty. Cork coating in Ilfracombe, Barnstaple, Braunton, Bideford, lynton, Lynmouth & across North Devon – warm, breathable walls that last spray directly to existing render to improve the look of your property and gain up to 30% in heat loss