Certified Installer

Roofing terms · plain-language definition, with its source

Roofing terms · definition

A contractor credentialed by a shingle manufacturer, required to offer that maker's enhanced system warranties.

Source: Wikipedia — Roofer

Where this comes up on this site

  • Contract

    The legally binding agreement between owner and contractor that defines scope, price, schedule, and responsibilities. A remodel should ne…

  • Chimney Flashing

    The system of base, step, and counter flashing plus a cricket that waterproofs a chimney. One of the most failure-prone roof details.

  • Built-Up Roof (BUR)

    A low-slope roof of alternating bitumen and felt plies topped with gravel — the traditional 'tar and gravel' flat roof.

  • Clay / Concrete Tile

    Heavy, very durable tile roofing common in warm climates; requires engineered structural support for the weight.

  • Box / Static Vent

    Individual non-powered roof exhaust vents ('turtle vents') used where a continuous ridge vent isn't feasible.

  • Closed Valley

    A valley where shingles are woven or cut over the center. Common and economical but more leak-sensitive than an open metal valley.

  • Blistering / Cupping

    Shingle surface bubbling (blistering) or edge curling (cupping) from heat and poor attic ventilation — signs of aging or a ventilation pr…

  • Condensation / Attic Moisture

    Moisture-laden house air condensing on cold roof decking, causing mold and rot. A ventilation and air-sealing problem, not always a roof…

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