This particular model is designed to be fitted to a builders upstand and is fitted with an offset actuator to provide a sufficient clear opening for access to your roof.
Our AOVs are fully tested and certified in accordance with BS EN 12101-2, meeting standards for safety, security, non-fragility and fire safety with the full guarantee of an established, accredited UK manufacturer.
Fully certified to approved document B to automatically open and extract smoke in the event of a fire.
Please note, this is a bespoke assembled product, returns are not accepted. Please ensure you select the correct size.
Certification and Regulatory Information
Operation and Options
|Smoke Vent Size (Note: Rectangular Sizes are Hinged on the Long Side)||Daylight free area* Size||Roof opening area (m2)||Standard (no Wind deflectors)|
|1050 x 1050mm||900 x 900mm||0.81||0.48||0.39|
|1200 x 1050mm||1050 x 900mm||0.95||0.46||0.43|
|1200 x 1200mm||1050 x 1050mm||1.10||0.47||0.52|
|1350 x 1050mm||1200 x 900mm||1.08||0.44||0.48|
|1350 x 1200mm||1200 x 1050mm||1.26||0.45||0.61|
|1350 x 1350mm||1200 x 1200mm||1.44||0.40||0.67|
|1500 x 1050mm||1350 x 900mm||1.22||0.42||0.51|
|1500 x 1200mm||1350 x 1050mm||1.42||0.43||0.61|
|1500 x 1500mm||1350 x 1350mm||1.82||0.45||0.83|
|1650 x 1050mm||1500 x 900mm||1.35||0.40||0.54|
|1650 x 1200mm||1500 x 1050mm||1.58||0.41||0.65|
|1650 x 1350mm||1500 x 1200mm||1.80||0.42||0.76|
|1650 x 1500mm||1500 x 1350mm||2.03||0.38||0.76|
|1650 x 1650mm||1500 x 1500mm||2.25||0.44||0.99|
Abbreviations: Aa = Aerodynamic Free Area, Cv = Coefficient flow
Mardome Trade Electronically Operated Access Smoke Vent Rooflights are individual polycarbonate domes intended for easy installation on flat roofs of all modern building types to provide natural smoke and heat exhaust, as well as comfort ventilation and access.
The lead times and delivery service are clearly displayed against each product, just below the price.
We will continue to send items on a Next working day delivery, but please accept delivery might take longer, this is out of our control.
Please note, for certain products and delivery zones we can offer AM deliveries and Saturday Deliveries, if available, you'll be able to select and pay for these options via the checkout.
Delivery Charges will be applied for deliveries to geographical areas represented as Zones C, D and E:
This includes certain parts of Scotland, Scottish Islands, Northern Ireland, Channel Islands and IOM)
You can return a standard product within 14 days of receipt.
Please note Made to measure products cannot be returned.
Click here to download a return form.
Our couriers have had to make some changes in order to protect you, and their staff, while also dealing with exceptionally high demand. As a result the following changes apply:
Parcelforce Worldwide Update - Coronavirus (COVID-19) Public Health England (PHE) has advised that people receiving parcels are not at risk of contracting the coronavirus (COVID-19). From experience with other coronaviruses, we know that these types of viruses don’t survive long on objects, such as letters or parcels. This complements the highly publicised guidance from PHE for people to wash their hands more often than usual using soap and hot water.
In order to protect both our people and customers as much as possible, we will not be handing over our hand-held devices to customers to capture electronic signatures. Our drivers will instead log the first and last name of the person accepting the item and we will record the geolocation of the delivery. This will apply to all deliveries that normally require a signature.
If recipients are unable to come to the door or are self-isolating, we will post a customer contact card in the normal way, advising of other ways the recipient can arrange to get their item. For example, by getting a friend or family member (who is not resident with someone who is self-isolating) to collect the parcel from their local Parcelforce depot or Post Office branch, as specified on the card. They will need to bring along the card we left and a form of ID in the name of the person the item is addressed to. Examples of suitable ID are specified on the card.
Due to the current situation, there are significant impacts on our ability to maintain all our usual service levels. We will continue offering our services, receiving and delivering parcels for our customers but there may be disruptions to some services under current conditions. As a result, we will be suspending service guarantees from 18 March 2020 but will seek to ensure ‘all reasonable endeavours’ to maintain service levels where we can.