When it comes to protecting your home from the elements, the roof plays a critical role. However, under the shingles and roofer materials lies an unsung idol: roofer underlayment. Often overlooked but incredibly important, roofer underlayment is the hidden layer that provides an additional shield against moisture, ice, and other potential dangers. In this blog, we will explore the value of roofer underlayment, its numerous kinds, installation methods, and why it’s an essential part of a durable and long-lasting roofer system.
What is Roofer Underlayment?
Roofer underlayment, also known as roofer felt or tar paper, is a protective layer installed between the roof deck (plywood or OSB) and the final roofer roofing vancouver material (shingles, tiles, metal, etc. ). It serves as a supplementary barrier that helps prevent water infiltration, protects against wind-driven rain, and additional warmth. Roofer underlayment is essential in regions with harsh conditions, as it helps extend the life span of the roof and look after the integrity of the house’s structure.
Types of Roofer Underlayment
Asphalt-Saturated Felt: This traditional underlayment material is made from cellulose fibers or fiberglass saturated with asphalt. It comes in rolls and is affordable and easy to install. Whilst it provides good protection, it may not be as resistant to Uv rays and moisture as newer materials.
Man made Underlayment: Made from polyethylene or polypropylene, man made underlayment is highly resistant to moisture and Uv rays. It is lightweight, durable, and less susceptible to getting or wrinkling during installation. Man made underlayment often comes in rolls or sheets and is considered a more modern alternative to traditional felt.
Plastic Asphalt Underlayment: This type of underlayment combines asphalt and plastic to manufacture a self-sealing, water-resistant material. It adheres well to the roof deck and can close around nails and fasteners, providing excellent waterproofing.
Benefit of Roofer Underlayment
Water Resistance: Roofer underlayment acts as a waterproof barrier that prevents water from leaking into the roof deck. This is crucial in areas with heavy rainfall, snowmelt, or wind-driven rain.
Ice and Snowfall Protection: In regions with cold climates, underlayment can help prevent ice dams by providing an additional layer of warmth and preventing water infiltration that can lead to ice build-up.
Wind Resistance: Underlayment adds wind resistance to the roof, helping to keep shingles or other roofer materials in place during severe thunder or wind storms and high years.
Trickle Prevention: It serves as a backup layer of protection in case shingles or other roofer materials become damaged or sacrificed, reducing the risk of water leaks.
Installing of Roofer Underlayment
Proper installing of roofer underlayment is essential to its effectiveness. Here are the basic steps involved:
Clean the Roof Deck: Ensure that the roof deck is clean and without any debris before installing underlayment.
Start at the Eaves: Begin at the eaves (bottom edge of the roof) and work your way up, overlapping each line of underlayment as you go.
Overlap Joints: Overlap the edges of adjacent sheets or rolls of underlayment according to the manufacturer’s instructions. This ensures a water tight close.
Secure with Fasteners: Secure the underlayment to the roof deck using roofer nails or staples, making sure to follow the recommended spacing and pattern.
Install Drip Edge and Boasting: Install drip edge along the eaves and gable edges, and boasting around roof penetrations (vents, chimneys, etc. ) to help expand drive back water infiltration.
Inspect and Repair: After installation, carefully inspect the underlayment for any tears, holes, or flaws. Any issues should be promptly repaired to maintain the integrity of the roof.
Roofer underlayment is a crucial but often underestimated part of a durable roofer system. It provides an additional layer of protection against moisture, wind, and other environmental factors, helping to extend the life span of the roof and safeguard the house’s structure. Whether you’re developing a new roof or replacing a pre-existing one, investing in high-quality underlayment and ensuring its proper installation is essential for long-term roof performance and peace of mind. By protecting your roof from the inside out, you’re investing in the comfort and safety of your home for years into the future.