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Areco Aluminium Mega Vent - 350mm

Product Code:
Manufacturer Code:
Estimated Delivery:
up to 3 working days

Our price today, excluding delivery and VAT is

£34.20 inc. VAT £28.50

Product Description

Areco Aluminium Mega Roof Vent, manufactured using spun aluminium.

Top fixed to base with a self-tapping screw.

The area that can be effectively ventilated by a "Mega-Vent" is determined by the materials used in the construction of the roof.


  • Designed expressly to meet the needs of the inverted roof can be used with asphalt or felt roofing
  • Not for use with cross flow ventilation

New roofs
Moisture is present in most roofs. A newly screeded concrete deck takes a long time to dry out thoroughly and when the deck is waterproofed, residual moisture from the screeded concrete is trapped with no means of escape. The installation of breather vents in the waterproofing layers of the roof allows this trapped moisture to escape, thus alleviating potential problems:

  • Blisters in the asphalt or felt roof covering
  • Expansion and contraction stress on the weathering membrane
  • Subsequent ceiling level condensation

Existing roofs
Where an existing roof covering has failed and moisture has penetrated the roof structure, breather vents should be installed with the replacement waterproof membrane (felt or asphalt). They will assist in clearing the excess moisture and continue to act in relieving vapour pressure, subsequently. Damp timber roof decks still require any repairs to be completed before re-roofing commences.
For felt roofs, the performance of the breather vent will be improved by the use of a proprietary partial bonded base layer or a vented felt. Both provide a better flow of vapour laden air to the breather vents.

Method of installation

Felt roofing
A hole should be cut in the base layer and insulation. Place the vent base over the hole and dress subsequent layers of felt over the base and up the neck. The cap can then be secured to the base.

Asphalt Roof
Place the vent base in position and trim sheathing felt around the base plate. Apply minimum two coats of asphalt over the box and dress around the neck of the vent. The vent cap can then be secured to the vent base.

Priming of the vent bases in contact with the waterproofing membrane is recommended.

Product Specification

Base Diameter 240mm
Brand Areco
Colour Aluminium
Compatible Roof Material(s) Felt & asphalt
Diameter of Aperture at Base 165mm
Height 350mm
Material Spun Aluminium
Product Type Breather vents
Ventilation Area Determined by the materials used in the construction of the roof.

Delivery, Cancellation & Returns

For our delivery, cancellation and returns policy.

Delivery charges are included in the final shopping basket total and will depend on the basket's contents. Additional shipping charges may apply to orders from the Scottish Highlands and UK islands.

These extras delivery charges are based on certain costs from the manufacturer, distributor or our own couriers. Not all products will be applicable.

If additional shipping fees apply, a member of our team will contact you before processing your order to let you know.

We will do our very best to make sure your delivery arrives by the date required, however manufacturer availability and delivery schedules cannot always guarantee this.

Should your estimated delivery date differ from that displayed on our website, one of our team will inform you by email or telephone

If we cannot make a delivery due to access not being possible, we reserve the right to make a failed delivery charge.