Built-Up Roof (BUR)

Roofing terms · plain-language definition, with its source

Roofing terms · definition

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

Source: Wikipedia — Bituminous Waterproofing

  • Certified Installer

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

  • Box / Static Vent

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

  • 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.

  • Blistering / Cupping

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

  • Clay / Concrete Tile

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

  • Attic Ventilation

    Balanced intake (soffit) and exhaust (ridge) airflow that controls attic heat and moisture, extending shingle life and preventing ice dam…

  • 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.

  • Assignment of Benefits (AOB)

    A document transferring the homeowner's claim rights to the contractor. Convenient but ripe for abuse — read carefully before signing.

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