Do these Insulation Materials have adequate resistance to moisture ingress?

25 Jun Do these Insulation Materials have adequate resistance to moisture ingress?

All synthetic materials exhibit good resistance to water ingress. All materials with good moisture resistance are also durable by nature. Some of the natural insulations are impervious to water but due to the fibrous nature of the product water permeability is high. Some natural material like cotton and cellulose material have poor resistance to moisture ingress. In general a specialized vapor barrier such as integral aluminum foil, PE film or Bituminous applications on walls etc are required.