Check the roof and walls regularly for any weather damage that could lead to water ingress. Make sure your shed is well ventilated, and apply wood treatment yearly to timber sheds to guard against damp. Installing insulation helps to maintain a steady temperature, discouraging condensation build-up. Heating and dehumidifying devices can help to keep a shed's interior dry and cosy. For more advice, read our handy guide to damp-proofing your shed.