Recommendations For Installing Skylights On Different Types Of Roofs

Skylights are a fantastic way to bring more natural light into your home, enhance energy efficiency, and create a sense of openness in your living space. For homeowners in Maryland, skylights can brighten up gloomy winter days, and in the summer, they can provide energy savings by reducing the need for artificial lighting. However, installing a skylight isn’t as simple as cutting a hole in the roof and fitting in a window. The type of roof you have and the skylight installation method you choose will determine how well your skylight performs and how long it lasts. In this guide, we’ll take an in-depth look at the different types of roofs—shingle, metal, and tile—and how to install skylights on each one. We’ll also explain the difference between deck-mounted and curb-mounted skylights, the importance of flashing, and why it’s crucial to choose the right approach for your particular roof.

Recommendations For Installing Skylights On Different Types Of Roofs

Types of Skylights and Installation Methods

Skylight installation methods fall into two main categories: deck-mounted and curb-mounted. The appropriate choice for your home will depend on your roof type and slope, as well as your aesthetic preferences.

Deck-Mounted Skylights

Deck-mounted skylights are attached directly to the roof deck. This type of skylight sits flush against the roof, providing a sleek, low-profile appearance. Because they are mounted closer to the roof, deck-mounted skylights are great for homeowners who want a streamlined look without too much protrusion.

The low profile also helps reduce air and water leaks, making this option more energy-efficient. Deck-mounted skylights are an ideal choice for new constructions or homes that are having new roof installations. However, they are only suitable for certain types of roofs, which we’ll discuss later in this article.

Curb-Mounted Skylights

Curb-mounted skylights, on the other hand, are installed on a raised curb—typically a wooden frame made of two-by-fours—that is attached to the roof. This creates a “box” around the skylight, allowing it to sit higher than deck-mounted options. The raised curb is especially useful on low-sloped roofs or flat roofs, where it prevents water from pooling around the skylight and causing leaks.

Curb-mounted skylights are often used in retrofit installations, where a skylight is being added to an existing roof. They also offer more flexibility, as they can be installed on a wide range of roof types, including those with complex slopes or unconventional materials. Both deck-mounted and curb-mounted skylights look similar from the inside of your home, so your roof’s type and slope will be the main factors in determining which installation method is best for you.

Installing Skylights on Different Roof Types

Skylights can be installed on almost any type of roof, but the installation process varies depending on the roofing material and pitch. Here are some key considerations for the most common roof types in Maryland:

Shingle Roofs

Shingle roofs are the most common roofing material in Maryland, particularly asphalt shingles. These roofs are versatile, durable, and relatively easy to work with, making them an excellent candidate for skylight installations.

• Deck-Mounted Skylights: This option is highly suitable for shingle roofs, especially if your roof has a moderate or steep pitch. Deck-mounted skylights provide a clean look and are easy to install flush with the roof. The shingles can be easily lifted or cut away to accommodate the skylight, and proper sealing ensures that the skylight is weatherproof.
• Curb-Mounted Skylights: While deck-mounted skylights are more popular for shingle roofs, curb-mounted skylights can also be installed. Curb-mounted skylights are typically used for homes with lower roof slopes or in retrofit projects. The raised curb helps prevent water from pooling around the skylight, reducing the risk of leaks.
• Flashing Considerations: Proper flashing is critical for skylights installed on shingle roofs. Step flashing and counter flashing are commonly used to prevent water intrusion, ensuring that rainwater is directed away from the skylight and into the gutters.

Metal Roofs

Metal roofs are becoming increasingly popular in Maryland due to their durability, energy efficiency, and long lifespan. However, installing skylights on metal roofs can be more challenging due to the roofing material’s ridged surface.

• Deck-Mounted Skylights: Metal roofs can only support deck-mounted skylights. These skylights are installed directly onto the roof deck, making them ideal for metal roofs with steeper pitches. The flush fit of deck-mounted skylights helps ensure that the skylight remains watertight, even in heavy rain or snow.
• Flashing for Metal Roofs: Installing skylights on metal roofs requires special flashing to account for the roof’s seams and ridges. A raised curb is often added to create a watertight seal around the skylight. Without proper flashing, the metal roof’s unique profile could allow water to seep in, leading to leaks. Flashing kits designed specifically for metal roofs are essential for a successful installation.

Tile Roofs

Tile roofs, often made from clay or concrete, are known for their durability and aesthetic appeal. However, installing skylights on tile roofs requires special care due to the fragility of the tiles. Tile roofs are also more prone to water pooling, which makes skylight installation particularly challenging.

• Deck-Mounted Skylights: While deck-mounted skylights can be used on tile roofs, the installation process is more complicated. Tile is a brittle material, and installers need to be extra cautious to avoid cracking the tiles during installation. The shingles or tiles around the skylight may need to be cut, and specialized flashing is required to prevent leaks.
• Curb-Mounted Skylights: Curb-mounted skylights are generally a better choice for tile roofs. The raised curb keeps the skylight elevated above the tiles, reducing the risk of damaging the roof during installation. Additionally, curb-mounted skylights provide better protection against water infiltration on low-sloped tile roofs.
• Flashing and Waterproofing: Tile roofs require specialized flashing kits to accommodate the unique shape of the tiles. The flashing must create a secure seal around the skylight to prevent water from entering between the tiles and into your home. A professional installer should have experience working with tile roofs to ensure the skylight is properly flashed and waterproofed.

The Importance of Flashing in Skylight Installation

Flashing is a key element in any skylight installation. It ensures that your skylight is watertight and protected from leaks. Without proper flashing, water can seep through the edges of the skylight and damage your roof and interior.

Types of Flashing:

• Step Flashing: Installed in layers beneath the roofing material and around the skylight to guide water away from the opening.
• Counter Flashing: Acts as a top layer of flashing to cover the step flashing and provide additional protection.
• Specialized Flashing for Metal and Tile Roofs: Depending on the roofing material, custom flashing kits may be required to ensure a proper seal.

For Maryland residents, where weather can range from hot, humid summers to icy winters, high-quality flashing is essential. It helps protect your home from rain, snow, and ice dams, ensuring your skylight remains leak-free year-round.

Contact Roof Right For Skylight Installations In Maryland

Installing skylights is an excellent way to add natural light to your home, but it’s essential to choose the right installation method for your roof type. Whether you have a shingle, metal, or tile roof, proper installation and flashing are critical for ensuring your skylight remains durable, energy-efficient, and leak-free.

At Roof Right, we specialize in skylight installations for Maryland homeowners. Our team, based in Hampstead, MD, of professionals has extensive experience working with all types of roofs and will ensure that your skylight is installed correctly and beautifully. Ready to brighten up your home? Contact Roof Right today for a consultation on skylight installations. Let us help you bring natural light into your home with expert skylight installation tailored to your needs!

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