Choosing the right underlayment is crucial for the overall protection and longevity of your roof. Typically, there are two types of materials that come to mind when it comes to this integral roofing component: synthetic and felt. In this post, roofing experts from US Roofing will help you determine which is the better choice for your home.
All About Felt Roofing Underlayment
Felt underlayment, often referred to as tar paper, is the traditional option that has been used for decades. It is made from natural materials like wood cellulose, saturated with asphalt to make it water-resistant. Felt underlayment comes in two thicknesses, commonly known as 15-pound and 30-pound felt, with the latter providing better durability and protection.
Advantages and Disadvantages of Felt Underlayment
Felt underlayment is valued for its lower cost and the fact that it offers a basic level of protection for a roof repair or a new roof installation. However, its water resistance can be considered inferior to synthetic options. Felt is also heavier and can tear more easily during installation or under strong winds after exposure.
The Rise of Synthetic Roofing Underlayment
Synthetic underlayment is a relatively recent innovation in roofing technology. Made from woven or spun polyethylene or polypropylene, synthetic underlayment is engineered to offer superior strength, durability and moisture resistance.
Benefits and Considerations for Synthetic Underlayment
Durability and resistance to elements are where synthetic underlayments shine. They are immune to mold growth, provide excellent UV and chemical resistance and can handle severe weather conditions. Synthetic materials are also lighter and offer safer footing for roof repair crews, which can be crucial for emergency roof repair situations. While synthetic options tend to be more expensive upfront, their longevity can offer better value over time.
Comparing Installation and Performance
When it comes to installation, synthetic underlayment has the clear edge over the felt counterpart. It is lighter and comes in larger rolls that cover more area, leading to faster and easier installation. This, in turn, can be critical during emergency roof repair scenarios. Felt underlayment, while having improved its water-resistant qualities over the years, still cannot match the water-shedding capabilities of synthetic materials. Synthetic underlayment may offer better moisture protection, especially if the roof is exposed to elements such as moisture.
Environmental Impact and Longevity
It’s worth considering the environmental impact of your underlayment choice. Synthetic materials are not biodegradable but are recyclable in some cases. Felt underlayment is more traditional and may appeal to those looking for natural materials. However, in terms of longevity and protection against the elements, synthetic underlayment generally provides a more robust solution that can extend the lifespan of the roofing system.
Making the Right Choice
When deciding between synthetic and felt roofing underlayment for your home, the specific needs and challenges presented by the local climate should guide your choice. If you’re looking for underlayment that can withstand the rigors of heavy snowfall and the need for regular roof snow removal, synthetic might be the way to go. For a cost-effective solution or a less extreme climate, felt could provide sufficient protection.
Whether you choose to have synthetic or felt roofing underlayment, trust an expert to install it for you in the best way possible. You can always count on us at US Roofing to install your roofing system as the manufacturers intended. Call us at (978) 532-6300, or fill out this contact form to get an estimate.
