What Are the Layers of My Roof and What Do they Do?


The Layers of a Roof

There’s a lot that goes into building a roof. This part of our home is unique in that it directly protects us from the elements. While we usually associate roofs with the shingles visible from the outside, many layers go into a roof that allows it to function for its intended purpose.

All of these layers build on one another to create a barrier against rain, wind, snow for those up north, falling debris, and anything else that may come in contact with our homes.

We’re breaking down the layers of a roof and what you need to know about each one.


The structural integrity of your house depends on this roof level, which is the lowest one. All that would be left of our house would be basic wood planks if the siding, windows, and sheetrock were removed. The roof is no different.

Wood planks that outline the contours of your roof are hidden behind the shingles and other layers. This is essential to stop your home from collapsing under the weight of the roof. Depending on the materials used for the remainder of the roof, the type of planks and how they are arranged will vary.


Insulation fills the gaps between the boards supporting your roof, keeping your home cozy and preventing sudden temperature swings. If an attic is unfinished, the insulation will typically be exposed.

Roof Deck

The deck, a plywood layer that serves as a base for the other roof materials, is another important component of the roof. The plywood covers the structure and makes the entire roof one solid, smooth surface.


The underlayment, which often consists of a felt-like material, sits on top of the deck and keeps water from seeping through the roof.

For the purpose of preventing leaks in your home and damage to the roof itself, roofs must be successful in reducing water penetration. The underlayment adds to the protective water barrier and covers the entire deck.

Weatherproofing & Flashing

Weatherproofing/water shields and flashing are two more roof waterproofing components. These are spot-specific protection measures, as opposed to roof-wide covers, like the underlayment.

Another waterproofing tool that will aid in the roof’s water resistance is a water shield. These are areas near eaves and valleys that are particularly susceptible to the development of water and ice.

A metal fence called flashing serves as protection from water intrusion and damage. In order to hide any cracks or open spaces, flashing must be installed where various roof sections converge. It is frequently positioned near eaves or in the vicinity of chimneys, skylights, and other roof features.


The outer layer of your roof can be made out of a wide variety of materials. Because of its longevity, low cost, and durability, shingles are the most popular roofing material in the United States. Metal and tile are additional typical choices. Shingles are available in a wide range of hues and forms, so it’s simple to select one that suits your needs.

Your roof’s shingles serve as its primary line of defense, thus it’s critical that any damaged or missing shingles be restored by a skilled roofing crew.

Experience the Difference

Choose the Rhyne Restoration Roofing team for dependable repair on all of your roofing components. Your roof can be made beautiful and useful with the assistance of our knowledgeable roofing professionals. Call (407) 277-4963 right away to make an appointment for a free estimate!


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