When it comes to roofing, the visible shingles or tiles often take the spotlight, but what lies beneath them is just as important. Roofing underlayments play a crucial role in protecting your home from the elements, providing an extra layer of defense against rain, snow, and moisture infiltration. Two common types of underlayment used in roofing are traditional asphalt felt (also known as tar paper) and modern synthetic underlayment. In this article, we will delve into the characteristics, advantages, and considerations of both options to help you make an informed choice for your roofing project.

Traditional Choice: Asphalt Felt

Asphalt felt, or felt paper, has been a staple in the roofing industry for many years. It is made by saturating a base material, typically paper or fiberglass, with asphalt. Here are some key aspects to consider:

1. Water Resistance: Asphalt felt is water-resistant, providing a reliable barrier against moisture infiltration. However, its effectiveness can decrease over time, particularly if it becomes damaged or torn during installation.

2. Durability: While asphalt felt can withstand exposure to the elements, it may not be as durable as synthetic underlayment, especially in extreme weather conditions. It may become brittle or prone to tearing with age.

3. Installation: Asphalt felt is generally heavier than synthetic underlayment, which can make it more challenging to handle and install. It may also require more fasteners to secure it to the roof deck properly.

4. Cost: Asphalt felt is often more cost-effective than synthetic underlayment, making it an attractive option for budget-conscious homeowners.

Modern Innovation: Synthetic Underlayment

Synthetic underlayment is a relatively recent development in roofing technology. It is typically made from materials like polyethylene or polypropylene, which are lightweight and highly resistant to moisture. Here's what you need to know about synthetic underlayment:

1. Superior Water Resistance: Synthetic underlayment is designed for exceptional water resistance. Its moisture-repellent properties make it a reliable choice for areas prone to heavy rain or high humidity.

2. Durability: Synthetic underlayment is known for its durability and resistance to tearing and UV exposure. It can remain effective for an extended period, even under harsh weather conditions.

3. Lightweight: Compared to asphalt felt, synthetic underlayment is lightweight, making it easier to handle and install. Its reduced weight can also be beneficial in terms of transportation and logistics.

4. Installation Efficiency: Due to its lightweight nature and ease of handling, synthetic underlayment can lead to quicker and more straightforward installations, potentially saving on labor costs.

5. Long-Term Cost Considerations: While synthetic underlayment may have a higher initial cost compared to asphalt felt, its durability and long-lasting performance can result in cost savings over the life of your roof.

Choosing the Right Underlayment

Selecting the appropriate underlayment for your roofing project depends on various factors, including your budget, climate, and personal preferences. Here are some considerations to help you make an informed choice:

1. Climate: If you live in an area with heavy rainfall or extreme weather conditions, synthetic underlayment may be the better choice due to its superior water resistance and durability.

2. Budget: If you're working within a tight budget, asphalt felt may be a cost-effective option. However, keep in mind that it may require replacement sooner than synthetic underlayment.

3. Roofing Material: The type of roofing material you choose may also influence your underlayment selection. Some roofing materials may benefit from the enhanced durability and moisture resistance of synthetic underlayment.

4. Long-Term Goals: Consider your long-term plans for your home. If you intend to stay in your current residence for many years, investing in synthetic underlayment may provide more extended protection and peace of mind.

5. Professional Guidance: Consult with a roofing contractor or professional to assess your specific needs and the compatibility of roofing materials with different underlayment options.

For more information, reach out to RRG Roofing & Gutters at 828-820-7663. We service areas in Dahlonega, Blairsville, and Hiawassee, GA.