NBS Source
List your products
Application

  • Suitable for ventilating lead ridge details from 0 to 30° (BRV1) or 31 to 65° (BRV2).
  • 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

Range of between-roll ventilators for lead ridge details, to be located between the wood or hollow core rolls.

Features and benefits:

  • Designed to ventilate the top of a pitched lead roof either at an abutment with a wall or at a ridge.
  • Provides a ventilation path under the flashing.
  • Provides an unobtrusive alternative to cumbersome timber constructions, especially on ridge details.

Applications:

  • Suitable for ventilating lead ridge details from 0 to 30° (BRV1) or 31 to 65° (BRV2).
  • 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.

Installation:

Consult manufacturer's literature for details.

General information
Material

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

Uniclass 2015
Pr_30_59_29_02 Abutment ventilatorsPrimary
Specification data - Abutment ventilators
Product Reference

Airtrak BRV1 Between Roll Ventilator, pitch

Insert pitch requirement, between 0 and 30°.

Airtrak BRV1-E Between Roll Ventilator, pitch

Insert pitch requirement, between 0 and 30°.

Airtrak BRV1-FR Between Roll Ventilator, pitch

Insert pitch requirement, between 0 and 30°.

Airtrak BRV2 Between Roll Ventilator, pitch

Insert pitch requirement, between 31 and 65°.

Airtrak BRV2-E Between Roll Ventilator, pitch

Insert pitch requirement, between 31 and 65°.

Airtrak BRV2-FR Between Roll Ventilator, pitch

Insert pitch requirement, between 31 and 65°.

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).

Ventilation:

25 mm continuous ventilation aperture.

Product Options

Product reference:

- Airtrak BRV1/ Airtrak BRV1-FR:

  • Material: 0.7 mm-thick 304 grade stainless steel.
  • Size (w x l): 180 x 1000 mm.
  • Safe to use with other metals (lead, copper, zinc) under normal inland (non-marine) conditions.

- Airtrak BRV1-E:

  • Material: 1.0 mm-thick 316 grade stainless steel.
  • Size (w x l): 180 x 1000 mm.
  • Increased resistance to chemical corrosion and marine environments.
  • Safe to use with other metals (lead, copper, zinc) in coastal environments.

- Airtrak BRV2/ Airtrak BRV2-FR:

  • Material: 0.7 mm-thick 304 grade stainless steel.
  • Size (w x l): 300 x 700 mm.
  • Safe to use with other metals (lead, copper, zinc) under normal inland (non-marine) conditions.

- Airtrak BRV2-E:

  • Material: 1.0 mm-thick 316 grade stainless steel.
  • Size (w x l): 300 x 700 mm.
  • Increased resistance to chemical corrosion and marine environments.
  • Safe to use with other metals (lead, copper, zinc) in coastal environments.

Intumescent seal (Airtrak BRV1-FR/ Airtrak BRV2-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 clip 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.

Similar products from Nicholson STS

© 2020 NBS Enterprises Ltd. All rights reserved.