When you look at a roof, the shingles are often the most visible part. However, there is a detailed structure underneath that supports and protects your home. Understanding roof anatomy is crucial for both homeowners and professionals, especially when maintaining or repairing a roof.
Roof Anatomy Explained: What Goes Under the Shingles
Decking (or Sheathing)
Decking forms the foundation of your roof. It’s usually made of plywood or OSB (oriented strand board). This layer provides structural support and holds the nails for shingles and other materials. What is the wood under the roof called? It’s the decking or sheathing. Over time, decking can weaken due to moisture or age. Regular inspections help catch these issues early. If you spot sagging or soft spots in your roof, contact Pro Exteriors for a professional assessment.
Roof Underlayment
The underlayment is an essential waterproof barrier. It sits directly on the decking, beneath the shingles. Most modern roofs use synthetic underlayment for better durability and resistance. Felt paper, also known as tar paper, is a traditional option. What goes under shingles? Underlayment protects against water infiltration if shingles are damaged or displaced. Investing in quality underlayment can save you costly repairs down the line.
Roof Ice and Water Shield
An ice and water shield is a self-adhesive membrane that offers extra protection. It’s typically installed in areas prone to water damage, like valleys, eaves, and around roof penetrations. This shield helps prevent ice dams in winter, which can cause significant roof damage. Installing this membrane ensures that melting ice or heavy rain doesn’t seep into your home. Pro Exteriors recommends adding this layer for homes in cold or wet climates.
Roof Felt Paper
Roof felt is another type of underlayment, often made from a combination of natural and synthetic fibers. It’s usually installed on top of the ice and water shield to provide extra moisture resistance. What is under shingles on a roof? Roof felt acts as an additional barrier to guard against water and wind-driven rain. It’s affordable and easy to install, making it a popular choice for homeowners and contractors alike.
Roof Flashing
Flashing is made of thin, corrosion-resistant metal. It’s installed at roof intersections, such as around chimneys, vents, and skylights. This component redirects water away from these vulnerable areas, preventing leaks. Regularly checking your roof’s flashing is vital. If flashing becomes loose or rusted, water can seep into your home, leading to interior damage. Pro Exteriors can help ensure your flashing is secure and functioning properly.
Roof Ventilation and Insulation
Proper roof ventilation and insulation work hand-in-hand to keep your home comfortable and energy-efficient. Ventilation prevents heat and moisture build-up, reducing the risk of mold and prolonging the life of your roof. Insulation helps maintain indoor temperatures and improves energy efficiency. Without good ventilation, the roof decking can warp, and shingles may age prematurely. If you’re unsure about your roof’s ventilation system, contact Pro Exteriors for a professional evaluation.
Roof Anatomy Tips for Homeowners
Maintaining your roof involves more than just a visual check of the shingles. Regular inspections help you spot hidden damage. After storms, look for any missing or cracked shingles, as these could indicate issues below the surface. Keep an eye out for signs of water stains on ceilings, as they can point to leaks. If you suspect damage or need guidance, Pro Exteriors is here to help.
Contact Pro Exteriors
Keep your roof in top shape with Pro Exteriors. Our team knows roof anatomy inside out and can inspect, repair, or replace your roof with care. Contact us today for a free consultation and expert advice to protect your home.
