What Goes Under Shingles on a Roof? More Than Just Wood!
GAF Roofing System
Did you know that your roof is made up of a carefully orchestrated team of components, working in concert with one another?
Your roof. It's your home's shield against the elements, and while shingles are the visible layer, a comprehensive roofing system involves much more. Understanding all the components beneath those shingles is crucial for a long-lasting, leak-free roof. Let's explore what a complete roofing system, as recommended by manufacturers like GAF, entails:
Think of your roofing system as a carefully orchestrated team of components, each playing a vital role. Here's a breakdown, incorporating elements often highlighted by GAF and other leading manufacturers:
Roof Deck (Sheathing): This is the structural foundation. Typically made of plywood or OSB (Oriented Strand Board), the roof deck provides a solid base for the entire roofing system. A properly installed deck is paramount for the roof's integrity.
Underlayment: This acts as a secondary water-resistant barrier, preventing water that penetrates the shingles from reaching the roof deck. Different types of underlayment exist, offering varying levels of protection. GAF, for example, offers a range of underlayments designed for specific needs and climates.
Ice and Water Shield (in some areas): In regions prone to ice dams, this self-adhering membrane creates a watertight seal, preventing water backup and leaks during freeze-thaw cycles. It's typically applied at vulnerable areas like eaves, valleys, and around chimneys. GAF offers specialized ice and water shield products for enhanced protection.
Flashing: This is essential for preventing leaks at intersections like roof-to-wall connections, chimneys, and skylights. Flashing, usually made of metal, diverts water away from these vulnerable areas. GAF offers various flashing options designed to integrate seamlessly with their roofing systems.
Starter Shingles: These are installed along the eaves and provide a clean, straight edge for the first course of shingles. They also help prevent water from getting under the shingles. GAF often recommends specific starter shingles for optimal performance with their shingle products.
Shingles: The visible, protective layer of your roof. They shed water and protect the underlayment and other components from the elements. GAF offers a wide array of shingle styles, colors, and materials, each with different warranties and performance characteristics.
Ridge Vents/Ventilation: Proper ventilation is crucial for preventing moisture buildup in the attic, which can lead to roof damage and mold growth. Ridge vents, along with soffit vents, allow air to circulate, keeping the roof cool and dry. GAF offers ventilation products as part of their complete roofing systems.
Hip & Ridge Shingles: These specialty shingles are used to cover the hips and ridges of the roof, providing a finished look and added protection in these high-stress areas. GAF offers matching hip and ridge shingles designed to complement their various shingle lines.
Sealants/Adhesives: In certain applications, sealants and adhesives are used to further enhance the watertightness of the roofing system, particularly around flashings and in challenging areas.
Why is understanding all these layers important?
Knowing the components of a complete roofing system helps you:
Make informed decisions: You'll be better equipped to discuss roof repairs or replacements with contractors and understand their recommendations.
Compare bids: You can ensure contractors are quoting a complete system and not just replacing the shingles.
Protect your investment: A properly installed, complete roofing system will last longer and provide better protection for your home.
Your roof is a significant investment. By understanding the components of a complete roofing system, especially those recommended by leading manufacturers like GAF, you can ensure its longevity and protect your home for years to come. Always consult with a qualified roofing contractor for specific recommendations for your home and climate.
