Groenberg Hardtop
Hard top roof tents with aluminium shell
Alvar and Tjelvar stay on your roof and open in a few moves: aluminium shell in a wedge shape, STABILUS gas struts, 8,000 mm hydrostatic head and a memory foam mattress for two. Closed, both are just 12 cm high. Here you'll find both models in Grey and Safari plus the matching accessories.
Alvar, Tjelvar, accessories: your hardtop system
Hard shell · Canopy
Alvar
The wedge-shaped hard shell roof tent with integrated canopy: the windows can stay open even in the rain.
Weight – 77 kg (excl. ladder)
Height closed – 12 cm
Height open – 143 cm
Mattress – 196 × 119 × 5 cm, memory foam
Colours – Grey, Safari
Double opening · more comfort
Tjelvar
Double-opening shell with windows on both sides, heavier tent fabric and an adjustable mattress.
Weight – 77 kg (excl. ladder)
Tent fabric – ripstop polyester, 320 g/m²
Mattress – 196 × 119 × 5 cm, adjustable head and foot
Organiser – integrated, with touch function
Colours – Grey, Safari
Optional
Hardtop accessories
For cold nights, more space in front of the tent and luggage on the shell.
What Alvar and Tjelvar have in common
Both models share the same basic design. The differences are in the shell, the tent fabric and the mattress.
Opening
Semi-automatic
STABILUS gas struts lift the aluminium shell. Your tent is up in seconds rather than minutes.
Weather
8,000 mm hydrostatic head
Ripstop polyester with an 8,000 mm hydrostatic head, windows as entrances with fine insect mesh and a nylon UPF50+ weather cover.
Sleeping
Memory foam on airmesh
5 cm memory foam with a washable cover. The 3D airmesh mat underneath keeps air moving and reduces condensation. Inside load up to 300 kg.
Equipment
Light, ladder, shoe bag
12 V LED lighting, three dimming levels, with USB port. Plus a 2.3 m telescopic ladder and a shoe bag for two pairs of shoes.
Roof load and mounting
A hardtop always travels with you. That's why the dynamic roof load matters for Alvar and Tjelvar: what your roof may carry while driving.
Roof load
At least 77 kg dynamic
Add the weight of your roof bars. The static roof load when parked is usually much higher.
Check your roof load →Roof bars
Sturdy crossbars
The tent is mounted firmly on the crossbars. The tools for mounting are included.
Roof bars for rooftop tents →Less roof load?
The WEEKEND from 11.5 kg
Your car can't carry 77 kg on the roof? The WEEKEND travels packed in the boot and only goes on the roof at your pitch.
View WEEKEND →Important
The tent, your roof bars and anything on the Roof Rack all count towards the roof load. Together they must not exceed your vehicle's dynamic roof load.
Hard top roof tent FAQ
How many people fit in Alvar and Tjelvar?
Both are made for two people. The mattress measures 196 × 119 cm, and the inside load capacity is up to 300 kg.
What's the difference between Alvar and Tjelvar?
The Alvar has an integrated canopy over the windows. The Tjelvar has a double-opening shell with windows on both sides, 320 g/m² tent fabric, a mattress with adjustable head and foot sections and an organiser with touch function.
Can I use the hard shell roof tent in winter?
For cold nights there's the Thermo Inner Tent: an extra insulating layer that fits inside the tent. The 3D airmesh mat under the mattress reduces condensation.
Can I carry luggage on the roof tent?
Yes, with the Roof Rack: up to 100 kg on the closed tent and up to 30 kg on the open tent. The load counts towards your vehicle's roof load.
Which ladder do I need?
A 2.3 m telescopic ladder is included. For taller vehicles there's a 2.6 m ladder as an accessory.