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Application

  • Suitable for use at the junction of a slated or tiled roof with an abutment.
  • E Version: For increased resistance to both wind uplift in exposed locations and corrosion in coastal locations, the ventilator can be supplied in 1.0 mm-thick, 316 grade stainless steel. Where extreme weather conditions are likely, consideration should be given to providing more weathering cover to upstands and slating or tiling to improve the integrity of the detail.
  • FR Version: To reduce spread of fire through ventilation apertures, the ventilator can be supplied with an intumescent seal.

Note: Standard Airtrak details assume moderate weather conditions. Small amounts of moisture may be admitted under heavy storm conditions. Where more severe weather conditions are likely, consideration should be given to increasing the vertical overlap dimension to upstands and to slating or tiling to improve the integrity of the weathering detail. For slate and tile details the manufacturer also recommends the use of the Airtrak LPS where appropriate. Contact manufacturer for further technical help.

Description

Introduces ventilation at the head of slated or tiled pitch where the roof meets an abutment wall.

Features and benefits:

  • The profile is supplied pre-bent to suit the roof pitch as specified, and is fixed to the abutment wall and covered with a flashing.
  • At lower pitches, the apron is combined with the appropriate LPS low pitch soaker to maintain the integrity of the detail.

Applications:

  • Suitable for use at the junction of a slated or tiled roof with an abutment.
  • E Version: For increased resistance to both wind uplift in exposed locations and corrosion in coastal locations, the ventilator can be supplied in 1.0 mm-thick, 316 grade stainless steel. Where extreme weather conditions are likely, consideration should be given to providing more weathering cover to upstands and slating or tiling to improve the integrity of the detail.
  • FR Version: To reduce spread of fire through ventilation apertures, the ventilator can be supplied with an intumescent seal.

Note: Standard Airtrak details assume moderate weather conditions. Small amounts of moisture may be admitted under heavy storm conditions. Where more severe weather conditions are likely, consideration should be given to increasing the vertical overlap dimension to upstands and to slating or tiling to improve the integrity of the weathering detail. For slate and tile details the manufacturer also recommends the use of the Airtrak LPS where appropriate. Contact manufacturer for further technical help.

Product selection guide:

- Tiled roof applications:

  • 45-65° roof pitch: VA200.
  • 28-44° roof pitch: VA200 + LPS150.

- Slated roof applications:

  • 35-65° roof pitch: VA200.
  • 25-34° roof pitch: VA200 + LPS225.
  • 20-24° roof pitch: VA250 + LPS225.

Installation:

Consult manufacturer's literature for details.

Specification data
Product Reference

Airtrak VA200 Ventilated Apron

Standard.

Airtrak VA200-E Ventilated Apron

Increased exposure.

Airtrak VA200-FR Ventilated Apron

Fire resistant ventilator with intumescent seal.

Airtrak VA250 Ventilated Apron

Standard.

Airtrak VA250-E Ventilated Apron

Increased exposure.

Airtrak VA250-FR Ventilated Apron

Fire resistant ventilator with intumescent seal.

LPS low pitch soaker

Not required

Airtrak LPS150

For tiled roofing, for use with VA200/ VA200-E/ VA200-FR only.

Airtrak LPS225

For slated roofing, for use with all aprons.

Airtrak CF ClipFast fixing clips

Not required

Airtrak CF ClipFast clips, stainless steel

Airtrak CF ClipFast clips, copper

Standard product features

Material:

Insect mesh: Vinyl-coated glass-reinforced plastic (GRP).

Length:

1000 mm.

Ventilation:

10 mm continuous air gap equivalent.

Product Options

Product reference:

- Airtrak VA200/ Airtrak VA200-FR:

  • Material: 0.7 mm-thick 304 grade stainless steel.
  • Cover to roof pitch: 200 mm.
  • Overall width: 220 mm.
  • Safe to use with other metals (lead, copper, zinc) under normal inland (non-marine) conditions.

- Airtrak VA200-E:

  • Material: 1.0 mm-thick 316 grade stainless steel.
  • Cover to roof pitch: 200 mm.
  • Overall width: 220 mm.
  • Increased resistance to chemical corrosion and marine environments.
  • Safe to use with other metals (lead, copper, zinc) in coastal environments.

- Airtrak VA250/ Airtrak VA250-FR:

  • Material: 0.7 mm-thick 304 grade stainless steel.
  • Cover to roof pitch: 250 mm.
  • Overall width: 275 mm.
  • Safe to use with other metals (lead, copper, zinc) under normal inland (non-marine) conditions.

- Airtrak VA250-E:

  • Material: 1.0 mm-thick 316 grade stainless steel.
  • Cover to roof pitch: 250 mm.
  • Overall width: 275 mm.
  • Increased resistance to chemical corrosion and marine environments.
  • Safe to use with other metals (lead, copper, zinc) in coastal environments.

Intumescent seal (Airtrak VA200-FR/ Airtrak VA250-FR only):

  • Size: 4 x 30 x 1000 mm.
  • External finish: Foil wrapped for moisture protection.
  • Activation: 180–200°C.
  • Expansion ratio: 30:1.

Airtrak CF ClipFast fixing clips:

Fixing clips for securing lead flashings to the Airtrak ventilators to prevent flashing creep over time. Clips locate in the slots found in the lower edge of the ventilator; these slots are spaced at approximately 330 mm centres.

  • Length (overall): 70 mm
  • Width (overall): 60 mm.
  • Thickness: Copper: 0.5 mm; stainless steel: 0.6 mm.

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