Brookline Roofing: Article About Felt Versus Synthetic Underlayment

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Although it is not seen once a new roof is completely installed, the underlayment plays a big part in roof protection during the installation process. If, for example, it begins to rain when only half of the roof is on, the underlayment will protect the sheathing and the attic against water damage. However, there two main types of underlayment that may be installed on a roof: felt underlayment and synthetic underlayment. Because both types have different properties, one type may be more appropriate for one home but not the other. Homeowners should speak with their local Brookline roofing contractors before making a decision.

Felt underlayment is made from the same materials that asphalt shingles are made from: asphalt. Paper is saturated with asphalt, which increases its resistance to water and adds weight. The felt comes in various weights, with the heavier options being a bit more difficult to install but providing more protection.

Synthetic underlayment is made from materials that are manufactured, such as fiberglass and polypropylene, among others. This type of underlayment provides a barrier against radiation and water but is much lighter.

The expert roofers from Capital Construction of Brookline would be happy to answer any question you have about carpentry or siding.

Not only does this make the material thinner, but it makes it easier to properly install as there is not as much material to work with.

Choosing the right underlayment can take some time as there are some considerations that should be made. First, synthetic underlayment often costs more than felt as the manufacturing process for the synthetic materials are expensive. For this reason alone, many choose to have felt underlayment installed.

In general, synthetic underlayment offers a wider variety of advantages when compared to felt. Because the synthetic material is thinner, it is less cumbersome to work with when up on the roof. It is also safer to walk on. Felt can be slippery due to the asphalt; fiberglass and plastic materials are not as hazardous as they are not as slick. Finally, synthetic underlayment can potentially last much longer than felt; this material works well under roofs that have a long lifespan, such as slate or clay tile roofs.

Ultimately, the type of underlayment that will be installed depends on what the roof absolutely needs, what the budget allows for and the homeowner's preferences. Since both types of underlayment will provide adequate protection for the underlying roof components, it really comes down to price and the need for underlayment that has a long lifespan. An expert roofer can always provide advice when it comes to adequate roof protection.

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