Roofing Basics: The Anatomy of a Roof

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I think I need a new roof. Now what? First of all, don’t worry. Owens Corning™ Roofing is here to help. Our entire Roofing Basics section is designed to give you the information you need.

While replacing a roof can be a big, important decision, it also helps protect your biggest investment-your home-and it gives you the chance to start fresh with a new exterior look. Getting the color and shape of shingle you always wanted is a great way to express your individual personality and add real value. Plus, if you have a leak, ignoring it can only get worse and could result in interior damage or even mold or roof deck rot. 

Let’s get started.Click on the spots below or click here for a print friendly version of the entire page.

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Ridge vent
An exhaust vent that runs horizontally along the peak of the roof allowing warm, humid air to escape from the attic.
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Ridge
An intersection of two roof planes forming a horizontal peak.
 

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Flashing
Waterproofing construction used at intersections of different planes or at openings in the roof.
 

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Valley
The intersection of two sloping roofs joining at an angle to provide water runoff.
 

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Deck
The structural base for the roof, usually made of wood or plywood.
 

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Gable Roof
 

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Gable
The triangular section of the outer wall at the peak of the roof. Also a type of roof.
 

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Underlayment
A layer of protective material between the deck and the shingles.
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Metal drip edge
A narrow strip of noncorrosive metal used at the rake to facilitate water runoff.
 

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Ridge
An intersection of two roof planes forming a horizontal peak.
 

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Ice and Water Barrier
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A self-adhesive waterproofing membrane used along eaves and valleys to protect these sensitive areas against ice damage and wind-driven rain.Learn More  

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Eave
The lower border of the roof that overhangs the wall.
 

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Hip
The intersection of two roof planes that meet to form a sloping ridge running from the peak to the eave.
 

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Undereave vent
Intake vents located under the eaves of the roof that help draw cool dry air into the attic.
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An Owens Corning™ Total Protection Roofing System™§  Total Protection Roofing SystemTM logo Owens Corning™
 

You'll notice that a roof is much more than just shingles-it's a complete system of integrated components and layers all working together to protect the home. To see more information on the Owens Corning™ Roofing products that make up the Total Protection Roofing System™§click here  .

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