ROOFING TERMS

Roofing Terms

GET INFORMED ABOUT OUR ROOFING TERMS


Pitch: This refers to how steep your roof is. A 2/12 has very little pitch. A 12/12 is a 45-degree angle. The average roof pitch is 5/12 to 8/12.

Flashing: Metal. Flashing. It’s all the same in roofing terms. Flashings are thinly-cut pieces of metal that usually come in 10-foot lengths. Roofers use flashings to make sure the roof doesn’t leak and that water directs where it is supposed to go. Skylights, chimneys, siding, and perimeter edges are often areas where roofers use flashings.

Roof Deck: The roof deck is underneath your roof and the roofing material is nailed to it. It is made of wood and differs in thicknesses and configuration.

Underlayment: This goes underneath the roofing and on top of the roof deck. It provides a vapor barrier in between the shingles and wood. It also keeps the house dry before the shingles can be installed.

Gutter Edge: Any roof edge that has a gutter on it.

Rake/Gable Edge: Any edge of roof that doesn’t have a gutter on it. All roof edges are gutter edges or rake edges.

Attic Ventilation: Air needs to flow from the bottom of your attic to the top. This keeps the roof deck from rotting and keeps mold from growing in your attic.

Soffit: This is also the “eave.” It is the part of your roof that overhangs the inside of the home. The soffit area usually extends two feet past the exterior walls.

Composition: Also known as “composite,” “asphalt,” and “comp.” Depending on how shingles are manufactured they may also be called “laminate” or “architectural” shingles.

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