This particular model is designed to be fitted to a builder's upstand. It has an offset actuator which provides a sufficient clear opening to allow 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, automatically opening and extracting smoke in the event of a fire.
Please note that as 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 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 (most access panels and loft hatches) within 14 days of receipt. Roof domes, Roof Lights, Roof Hatches and AOV Smoke Vents will be subject to a collection restocking fee.
Please note Made to measure products cannot be returned.
Click here to download a return form.