Definition of common roofing terms

February 21, 2019

So you'll be able to converse intelligently with your contractor.

Hopefully you will find the following helpful:

·        Cool roof shingle: Shingles that are specially designed to remain at lower temperatures than traditional, non-reflective shingles when exposed to the sun's rays, which may reduce attic temperature and help save on cooling costs.

·        Cricket: A device that helps divert water around or away from chimneys and other large roof projections.

·        Designer shingle: Asphalt roofing shingles with highest-end multidimensional designs made to appear similar to slate or wood shake shingles. Often called "premium" or "luxury" shingles.

·        3-tab shingle: An asphalt shingle comprised of a single layer with the exposed area separated by cut-outs into three tabs that are approximately 12 to 13 inches.

·        Architectural shingle: An asphalt shingle made up of multiple layers. The tabs on these shingles are cut to different sizes and shapes to give the roof a more three-dimensional appearance. Also called dimensional or laminated shingles.

·        Drip edge: Rigid material, usually metal, that is installed at the edge of the roof to keep shingles off the deck, extending them out over eaves and gutters. This helps control the direction of dripping water that could damage underlying components.

·        Flashing: A material, usually metal, installed around a roof penetration or along an edge to help keep moisture from seeping into the layers below. Can be found along the roof's perimeter or at penetrations, walls, expansion joints, valleys, drains, and other places where the roofing is interrupted or terminated.

·        Ridge cap shingles: Material specifically made to cover the peak ridge or hips of the roof.

·        Square: A measurement of roof area equal to 100 square feet or enough roofing material to cover 100 square feet of a roof deck.

·        Starter strip: The first row of roofing that is installed at the edge of the eave. They are also installed along the rakes to improve the wind resistance of the roof.

·        Eave: The edge of a roof that overhangs the wall.

·        Fascia: The wood trim around the perimeter of a building, just under the roofing. Often nailed to the ends of trusses or rafters and used to hang gutters.

·        Sheathing: The structural material over which roofing is applied. Usually plywood, boards, or planks.

·        Soffit: The exposed area under a roof eave or overhang.

·        Ice dam: A mass of ice formed at the roof edge, caused by the refreezing of snow. It can cause ice and water to back up under roofing materials and waterproofing, leading to water damage.

·        Penetration: Any construction passing through the roofing system, such as vent piping, conduits, and HVAC equipment supports.

·        Rake: The inclined edge of a sloped roof over a wall.

·        Soffit: The finished underside of the eaves.

·        Soil Stack: A vent pipe that penetrates the roof.

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