Alu-Cab Silenus Roof Conversion for INEOS Grenadier
Turn your INEOS Grenadier into a self-contained expedition vehicle with standing room, integrated sleeping space and unmistakable Alu-Cab engineering.
Now Available in Canada
The Alu-Cab Silenus Roof Conversion is now in stock and available for professional installation on compatible INEOS Grenadier vehicles.
Visit Alu-Cab Canada’s headquarters at Cap-it Langley Township, BC to experience Silenus installed on our own Grenadier. Open it, climb inside and see what this transformation actually adds to the vehicle.
The Silenus Roof Conversion is not a rooftop tent mounted above your INEOS Grenadier. It becomes part of the Grenadier itself.
Alu-Cab replaces the factory roof with a purpose-built aluminium pop-top system that adds a full sleeping platform, interior standing room, integrated power, lighting, ventilation, roof storage capability and a new level of expedition functionality.
With the roof raised and the bed platform lifted, you can stand inside the Grenadier, change clothes, organize equipment or take shelter from the weather. When it is time to sleep, lower the bed and settle onto a full-length mattress measuring approximately 2588 mm long by 1180 mm wide.
When closed, the tapered aluminium roof follows the Grenadier’s purposeful body lines and maintains the rugged, integrated appearance the vehicle deserves.
This is not an accessory added to your Grenadier. It is the next evolution of the vehicle.
From Grenadier to Expedition Vehicle
The INEOS Grenadier is already built to travel beyond the pavement. Silenus adds the living and sleeping capability required to stay out there longer.
Instead of carrying a separate tent or adding a conventional rooftop tent above the factory roof, Silenus integrates the sleeping system directly into the vehicle. You retain the Grenadier’s interior cargo space while gaining a full-length bed and usable standing room above it.
- Integrated two-person sleeping platform
- Interior standing room when the bed is raised
- Fast one-person opening
- Full-length 72 mm mattress
- Interior access from inside the Grenadier
- Small rear bed section helps preserve access without disturbing the entire sleeping platform
- Integrated power, lighting and solar preparation
- Exterior cargo rails and accessory mounting channels
- Room to leave suitable bedding inside when closed
Why a Roof Conversion?
A conventional rooftop tent sits above the vehicle. Silenus replaces the factory roof and connects the sleeping area directly to the cabin, creating one integrated living space with internal access, standing room and a lower-profile, vehicle-specific design.
Stand Up Inside Your Grenadier
One of the biggest advantages of Silenus is what happens below the bed.
Raise the pop-top and lift the sleeping platform to create standing room inside the Grenadier. You can move around, access cargo, change clothing and prepare for the day without immediately stepping outside into rain, snow or wind.
At camp, the Grenadier becomes more than transportation. It becomes a protected base for sleeping, organizing gear and living out of the vehicle.
Sleep Above. Live Below.
Lower the bed when it is time to sleep. Raise it when you need standing room. Silenus gives the Grenadier two distinct interior modes without requiring a trailer or permanent rear-cabin conversion.
A Proper Full-Length Bed
Silenus includes a substantial sleeping platform measuring approximately 2588 mm long by 1180 mm wide, with a 72 mm mattress.
The unusual bed length gives taller travellers room to stretch out, while the small independent rear bed section helps maintain interior access without requiring the entire sleeping platform to be moved.
- Designed to sleep two people
- 2588 mm x 1180 mm sleeping area
- 72 mm mattress
- Insulated roof construction
- 400 gsm double-layer canvas
- Internal shoe bag included
- Suitable bedding can remain stored inside
Built to Look Like It Belongs There
Silenus was designed specifically for the INEOS Grenadier. Its tapered front profile, black finish and strong horizontal lines complement the vehicle rather than appearing like a universal tent attached as an afterthought.
Custom roller-formed aluminium components provide rigidity and strength while helping control weight. A continuous perimeter seal between the roof lid and base provides weather protection when the system is closed.
- Vehicle-specific design for the INEOS Grenadier
- Black aluminium construction
- Custom roller-formed structure for strength and rigidity
- Tapered front profile designed to reduce aerodynamic drag
- Continuous perimeter sealing rubber
- Automotive-style interior finish
- Compatible with Grenadiers with or without factory auxiliary roof power points
The goal was not to place a box on top of the Grenadier. Silenus follows the vehicle’s design and turns the roof itself into the expedition system.
Power, Lighting and Solar Preparation
Silenus includes integrated electrical features for both the sleeping area and the living space below.
- 2 x USB charging ports
- 2 x USB-C charging ports
- 2 x interior LED lights
- 1 x exterior roof LED light
- USB kill switches to reduce standby battery draw
- Integrated Anderson plugs in the roof for solar connection
- Supports Grenadiers with or without auxiliary roof power points
The completed electrical system must be connected to an appropriate fused vehicle or auxiliary power supply. Solar panels, batteries and charging equipment are sold separately.
Carry Gear Above the Roof
Integrated cargo rails make it possible to add compatible load bars and roof-mounted equipment without requiring a separate full-vehicle roof rack.
Silenus is rated to carry up to 50 kg (110 lb) of compatible rooftop cargo, subject to the ratings of the load bars, mounting hardware, vehicle and completed installation.
Double nut channels along both sides provide additional mounting locations for compatible Alu-Cab accessories.
- Integrated roof cargo rails
- 50 kg (110 lb) roof load rating
- Dual side nut channels for accessory mounting
- Compatible with Alu-Cab load-bar systems
- Compatible with selected roof-conversion accessories
See Silenus in Person
A roof conversion is difficult to fully understand from photographs. The real impact becomes clear when you stand inside the Grenadier, raise the bed, see the available headroom and inspect how the system integrates with the vehicle.
Visit Alu-Cab Canada in Langley Township
Silenus is installed on Cap-it’s own INEOS Grenadier at Alu-Cab Canada’s headquarters in Langley Township, British Columbia.
See the conversion open and closed. Stand inside. Inspect the bed, canvas, lighting, roof structure and available accessories. Speak with the team responsible for bringing Alu-Cab products into Canada.
This is one product we strongly recommend experiencing before installation.
Professional Installation Is Required
Installing Silenus involves permanently removing and cutting the factory roof of your INEOS Grenadier. This is not a bolt-on rooftop accessory and it is not suitable for home installation.
The conversion must be completed by a qualified installer with the correct equipment, technical knowledge and experience in structural vehicle modifications, sealing, wiring and final fitment.
We Are Cutting the Roof of Your Grenadier
There is no room for shortcuts. Correct preparation, measurement, cutting, structural fitment, sealing, wiring and final inspection are essential to the long-term performance of the conversion.
A professional Silenus installation includes:
- Pre-installation vehicle inspection
- Protection and preparation of the vehicle interior and body
- Removal of the required factory roof components
- Precision roof cutting and preparation
- Installation and alignment of the Silenus structure
- Professional sealing and weatherproofing
- Electrical integration and function testing
- Roof opening and closing adjustment
- Water testing and final inspection
- Customer orientation covering operation and care
Contact Cap-it to discuss vehicle suitability, installation scheduling, available accessories and total installed pricing.
Build the Complete Grenadier Expedition System
Silenus creates the foundation. Alu-Cab accessories allow you to build the Grenadier around the way you travel, cook, carry equipment and live at camp.
INEOS Grenadier Rear Door Drop-Down Table
Turn the rear door into a practical work surface for meal preparation, cooking equipment, drinks or trail-side repairs.
View the INEOS Grenadier Rear Door Drop-Down Table
INEOS Grenadier Exterior MOLLE Plate
Add exterior mounting space for recovery equipment, utility gear and compatible expedition accessories.
View the INEOS Grenadier Exterior MOLLE Plate
Alu-Cab 270° Shadow Awning
Create fast wraparound shade and weather protection beside the Grenadier. Silenus-specific awning brackets are required.
View the Alu-Cab 270° Shadow Awning
Silenus Load-Bar Feet
Add compatible Alu-Cab load bars to the integrated roof rails for rooftop cargo, recovery boards, solar equipment and selected adventure gear.
View the Silenus Load-Bar Feet
Alu-Cab Shower Cube
Add a compact private space for showering, changing clothes or using a portable toilet at camp. Silenus-specific mounting brackets are required.
Technical Specifications
| Product | Alu-Cab Silenus Roof Conversion |
| Vehicle Compatibility | INEOS Grenadier |
| Product Code | RC-IG-B |
| Construction | Roller-formed aluminium |
| Colour | Black |
| Sleeping Capacity | Two people |
| Mattress Dimensions | 2588 mm L x 1180 mm W x 72 mm H |
| Silenus Weight Including Mattress | Approximately 147 kg (324.1 lb) |
| Factory Roof Components Removed | Approximately 17 kg (37.5 lb) |
| Approximate Net Vehicle Weight Increase | Approximately 130 kg (286.6 lb) |
| Roof Cargo Rating | 50 kg (110 lb) |
| Canvas | 400 gsm UV-resistant, rip-block, double-layer waterproof canvas with sealed seams |
| Roof Insulation | Polyethylene closed-cell foam with automotive-grade interior finish |
| Weather Protection | Continuous perimeter sealing rubber and roll-up flysheet |
| Lighting | 1 x roof LED and 2 x interior LED lights |
| Charging | 2 x USB and 2 x USB-C ports |
| Solar Preparation | Integrated Anderson plug connections in the roof |
| Installation | Professional installation by a qualified installer required |
Frequently Asked Questions
Is Silenus a rooftop tent?
Not in the conventional sense. Silenus replaces the Grenadier’s factory roof and integrates the sleeping system directly with the vehicle interior.
Does the conversion provide standing room?
Yes. When the roof is open and the bed platform is raised, Silenus creates standing room inside the rear cabin of the Grenadier.
How many people can sleep in Silenus?
Silenus is designed to sleep two people on a mattress measuring approximately 2588 mm long by 1180 mm wide.
Can bedding remain inside when the roof is closed?
Suitable light bedding can remain stored inside when arranged correctly. Do not force the roof closed around excessive or bulky bedding.
How quickly does Silenus open?
The pop-top is designed for fast one-person operation. Setup time will depend on any roof cargo and the way bedding is stored.
Can I install Silenus myself?
No. Installation requires permanent modification and cutting of the Grenadier’s factory roof. It must be completed by a qualified professional installer.
Will the conversion work with Grenadiers that have factory auxiliary roof power points?
Yes. Silenus supports Grenadier vehicles with and without auxiliary roof power points.
Does Silenus include power and lighting?
Yes. It includes interior and exterior LED lighting, two USB ports, two USB-C ports and integrated Anderson plug connections for solar preparation.
Can load bars be installed?
Yes. Integrated cargo rails allow compatible load bars and selected rooftop equipment to be added within the applicable load ratings.
Can I add an Alu-Cab 270° Shadow Awning?
Yes. Silenus-specific left-hand and right-hand awning brackets are available. Correct bracket selection and installation clearance must be confirmed.
Can I add an Alu-Cab Shower Cube?
Yes. Silenus-specific left-hand and right-hand Shower Cube brackets are available.
Where can I see Silenus in person?
Visit Alu-Cab Canada’s headquarters at Cap-it Langley Township, BC. Silenus is installed on our Grenadier and available to view in person.
Is Silenus available now?
Yes. Silenus is now available in Canada, subject to inventory and professional installation scheduling.
Who Is Silenus?
In Greek mythology, Silenus was the wise and spirited companion of Dionysus, known for balancing knowledge, adventure and an appreciation for life’s simple pleasures.
The name reflects Alu-Cab’s approach to the Grenadier, purposeful, capable and built for people who believe the journey should be enjoyed as much as the destination.
It is also a fitting nod to the INEOS Grenadier itself, a vehicle famously conceived through conversations in Sir Jim Ratcliffe’s favourite pub.
Why Buy From Cap-it?
Cap-it has helped Canadians build truck, off-road and adventure vehicles since 1977. As the Canadian home of Alu-Cab, we import Alu-Cab products directly from South Africa and support them through our distribution network, retail locations and experienced installation teams.
With Silenus, installation experience is as important as the product itself. Our team can help review vehicle compatibility, plan the conversion, configure optional equipment and complete the work to the standard expected when modifying a premium expedition vehicle.
Built in South Africa. Installed and supported by Alu-Cab Canada at Cap-it.
Designed for Adventure®