P
Pocket, Pitch

Pocket, Pitch

A pitch pocket is a metal container used in roofing to seal penetrations with bitumen or caulking, ensuring waterproofing around pipes, conduits, and structural elements.

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Definition

A pitch pocket is an opening between growth rings of a tree which usually contains resin, bark, or both. In roof construction, it is a metal container placed around a roof penetration at roof level to receive hot bitumen or caulking and provide a roof seal, commonly found at columns or plumbing stacks.

Purpose

In roofing, pitch pockets provide a method to seal penetrations through the roof surface, preventing water ingress around pipes, conduits, or structural elements. They ensure the integrity and waterproofing of the roof.

Examples of Use

  • Roof Sealing: Used around plumbing stacks, electrical conduits, and structural columns penetrating the roof.
  • Maintenance: Applied in roof repairs to seal gaps around new or existing penetrations.
  • Commercial Buildings: Commonly found in commercial roofing systems to maintain waterproofing around complex roof penetrations.

Related Terms

  • Roof Flashing: A material used to seal and protect joints in a building from water penetration.
  • Caulking: A flexible material used to seal joints or seams against leakage.
  • Bitumen: A viscous substance used for waterproofing in roofing applications.

Notes

  • Maintenance: Regular inspection and maintenance are essential to ensure the effectiveness of pitch pockets and prevent leaks.
  • Installation: Proper installation involves filling the pitch pocket with a suitable sealant, such as bitumen or elastomeric caulking, to ensure a long-lasting seal.

Related Terms