Underlayment is an important component to your roof. It acts as a water barrier between the external roof and the roof structure. Choosing quality materials for your home is vital. Three types of underlayment exist. Felt is the most widely used, but it’s not considered high quality. If you live in a place prone to inclement weather, it does not offer proper protection. Ice shields offer special protection, and often they are used in conjunction with other forms of underlayment. Synthetic is the last underlayment option, and the best quality. It has many advantages as it is very durable. Investing in the best underlayment will save you money in the future.
Read full article here: Roofing Underlayment Guide—Felt, Synthetic and Ice/Water Shield