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Aluminium Mega Roof Vent

Ref: BVAVM

£30.82

price exc. VAT £25.68

Delivery Format: Large Item

Lead Time: 10 Days

see delivery tab for details

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Description

Flat roof moisture release vent manufactured from spun aluminium.

Top fixed to base with self tapping screw.

Designed expressly to meet the needs of the inverted roof can be used with asphalt or felt roofing.

Dimensions Height 350mm Diameter of base 240mm Diameter of aperature 165mm

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

Not for use with cross flow ventilation.

Preparation before installation

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 the problems caused by:-
(1) Blisters in the asphalt or felt roof covering.
(2) Expansion and contraction stress on the weathering membrane.
(3) 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, diameters as follows:
Extra Aqua Vent 210mm
Aluminium A. Vent 180mm
Aluminium Mega Vent 180mm
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

 

Delivery

Standard small items incur a delivery charge of £10.00 and standard large items a delivery charge of £20.00. If several items are delivered together only one carriage charge will be applied. Special orders carriage will be quoted accordingly.

Delivery can only be made to addresses in mainland England, Scotland and Wales.

IMPORTANT: Most deliveries will be sent by courier and will need a signature on delivery. For your convenience please give a delivery address where someone will be available to accept the goods during the day. 

For goods in stock we aim to get them to you in 4-7 days. Goods sent direct from the manufacturer have different despatch times, this is indicated in the product description.

Although it is extremely rare for damage to occur during transit, please remember that a consignment must not be signed for if there is any evidence of damage. It is your responsibility to check the contents of your package and notify the driver that you wish to decline delivery. Please report any damage or shortages to us within 48 hours so we can arrange for replacements to be sent. We will not be liable for replacement of any broken pieces if they have been signed for in "Good Condition".

COLLECTION of standard stock items can be made from our premises. Opening Hours Mon. to Fri. 7.30 am to 5.00pm  Sat: 8.00am to 12.00 pm

Refund Policy: Returns.

Returns may be made within 14 days of delivery for unwanted goods and 30 days for faulty/damaged goods. We are unable to accept returns of bespoke items. Please email us with details of your returns at sales@areco.co.uk quoting you order number. Returned goods must be undamaged and carriage is the responsibility of the customer - sorry, but we are unable to arrange collections.

 

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