Application

  • Where gas barriers are present within the external walls of a building and the door opening levels punctuate the arrangement, there is a requirement to maintain gas-protection. Commonly, door openings are at a different level (access requirements), resulting in additional discontinuity of protective arrangement against rising gas.
  • The Type PAT provides both gas and water protection under and to the sides of every opening and eliminates discontinuity, providing adjustable connection with adjacent barriers.
  • Traditional and timber frame construction compatible.
  • New and retrofit applications.

Description

The Type PAT – Protective Adjustable Threshold is a three-dimensional damp proof course (DPC) unit that is bedded within the external wall opening.

Integration between wall barriers and the Type PAT is achieved using the adjustable side connectors that attach to the Type PAT and slide up and down to the requisite level. The cavity face of each connector has a projecting connection profiled to match that of the external wall DPC/ barrier profile. Once in position, all lapping sections are lap-sealed and gas-tape bonded.

The footprint membrane is integrated in the usual way to maintain gas-resistant integrity.

The reveal closers (compatible caviclosers available) descend into the cavity-projecting sides of the Type PAT, terminating within its channel base in which are located flow-out drainage conduits. This channel base can additionally accommodate an optional insulating strip if thermal enhancement is sought under the sill.

The Type PAT is supplied in one or more connecting sections to suit the structural opening dimensions.

The side connectors are supplied with different projecting profile options to match the wall barrier profile selected by the designer.

Features and benefits:

  • Contaminated Land Application when integrated with adjoining elements.
  • Rising gas arrested and controlled.
  • Downward gravitating water evacuated.
  • Integrates with reveal Caviclosers.
  • Ensures uninterrupted dual protection.
  • Adjusts to construction course levels.
  • Compatible with numerous wall barrier profiles.
  • Designed solution for radon gas applications.
  • Does not extrude or compress under load.
  • Chlorofluorocarbons (CFC) free and has Zero Ozone Depletion Potential (ODP).
  • May be used if cavity insulation is present, with compliant insulation types.
  • Bespoke option available, consult manufacturer for details.

Applications:

  • Where gas barriers are present within the external walls of a building and the door opening levels punctuate the arrangement, there is a requirement to maintain gas-protection. Commonly, door openings are at a different level (access requirements), resulting in additional discontinuity of protective arrangement against rising gas.
  • The Type PAT provides both gas and water protection under and to the sides of every opening and eliminates discontinuity, providing adjustable connection with adjacent barriers.
  • Traditional and timber frame construction compatible.
  • New and retrofit applications.

General information

Size

As drawing

Insert drawing number.

Uniclass 2015

Pr_25_57_21_35 Gas-resistant damp-proof coursesPrimary

CAWS

F30/270 Meshwork joint reinforcement

F30/360 Gas resistant damp proof courses/ cavity trays

F30/54 Gas resistant dpcs/ cavity trays

F30/56 Preformed cavity trays

Specification data - Gas-resistant damp-proof courses

Product Reference

Type PAT

Size

As drawing

Insert drawing number.

Standard product features

Technical characteristics:

  • Material: Polypropylene DPC.
  • Colour: Black.
  • Dimensions: All opening widths accommodated - consult manufacturer for details.
  • Cavity width: Up to 150 mm.
  • Masonry skin styles: Split/ variable style compatibility limited.
  • Undulating masonry faces: Depends on extent of deviation - consult manufacturer for details.
  • Arrested water evacuation: N/A - no horizontal arrestment.
  • Thermal transmission (U-Value) of material: Negligible - 0.15 W/m²K.

Literature
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