ERV External Roof Ventilator

Description

External roof ventilator for use with flat and low pitched lead covered roofs.

General information

Color

Grey.

Material

Lead

Size

210 x 140 x 160 mm.

Small - plus 335 x 260 mm base surround. Free airflow area 6,000 mm², including drain-out slot

405 x 140 x 160 mm.

Large - plus 530 x 260 mm base surround. Free airflow area 12,000 mm², including drain-out slot

Uniclass 2015

Pr_30_59_29_30 Flat roof ventilatorsPrimary

CAWS

H71/110 Lead sheet fully supported roof covering

J31/360 Roof ventilators

J31/60 Roof ventilators

Specification data - Flat roof ventilators Enhanced data

Material

Lead

to BS EN 12588

Colour

Grey

Size

-

Diameter or section (minimum)

210 x 140 mm

Small

405 x 140 mm

Large

Upstand (minimum)

160 mm

Flange base (minimum)

335 x 260 mm

Small

530 x 260 mm

Large

Product Reference

ERV – Large

ERV – Small

Literature

Ventilation Product Guide

Ventilation Product Guide

Protecting the Building Envelope Volume 28 (cavity tray, damp proofing, ventilation and cavity closers)

Protecting the Building Envelope Volume 28 (cavity tray, damp proofing, ventilation and cavity closers)

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