Fiamma Vent 40 Crystal Roof Vent 40x40 | Caravan Motorhome Campervan Rooflight | 04328B01D

The Fiamma Vent 40 Crystal (item no. 04328B01D) is a 40 x 40cm rooflight and ventilation unit for caravans, motorhomes, campervans and van conversions. The translucent "crystal" dome floods the interior with natural light while the built-in permanent ventilation keeps air moving even when closed. It fits the standard 390 x 390mm roof cut-out, making it a direct replacement for older Fiamma 40x40 rooflights — check the fitment details below.

Key features & benefits

• Light + airflow: tinted crystal dome lets daylight in; permanent ventilation gives constant air exchange, cutting condensation.
• Easy manual opening via winding handwheel, with a centre support arm for stability when open.
• Integrated mosquito net keeps insects and debris out.
• Watertight patented rubber seal and UV-resistant materials — rain runs off without getting in.
• Aerodynamic low-noise design — no separate spoiler needed, reduced vibration at motorway speeds.

⚠ Fitment — please confirm before buying

Confirm your roof aperture and thickness before ordering:

• Roof cut-out: standard 390 x 390mm; the reinforced frame adapts to openings from 360 x 360mm up to 420 x 420mm.
• Roof thickness: 25–50mm as standard. Thicker roofs (up to 85mm) need Fiamma's optional extension kit.
• Replacing an old unit? It's interchangeable with previous-generation Fiamma 40x40 rooflights — the existing aperture should work without modification.

Specifications

What's in the box

1 × Fiamma Vent 40 Crystal rooflight with integrated fly screen and winding handle. Fixing screws and sealant are not included — you'll need approx. 20 screws and a suitable non-setting sealant (e.g. Sikalastomer-710).

Why buy from Motor Synergy

• Free delivery — with you in 2 days.
• 30 days free returns, hassle-free.
• Real support: unsure about fitment? Contact us before you order and we'll check.

FAQs

Will it fit my caravan/motorhome? If your roof aperture is 360–420mm square and the roof is 25–50mm thick, yes. Measure before ordering.

Is the dome see-through? It's translucent tinted — it lets light in but isn't fully transparent, so you keep some privacy.

Can I add a blackout blind? Yes — the optional Fiamma Rollo Vent 40x40 roller blind fits this Crystal version.

Does it need a spoiler? No — the aerodynamic dome is designed to run quietly without one.

What do I need to install it? Screws (~20, not supplied), suitable sealant, and basic tools. If your roof is thicker than 50mm, add the Fiamma extension kit.