Reduce condensation in your Citroën Jumper L2H2: 34 m² of Armaflex ChezMoi

The closed cells of Armaflex ChezMoi act as an integrated vapour barrier (μ> 7 000): applied to the metal bodywork of a Citroën Jumper L2H2, it reduces condensation without the need for a separate vapour control layer. This kit brings together the quantities calculated for the Jumper L2H2: 1 roll of 10 mm, 4 rolls of 19 mm, 4 rolls of Tape and 1 Cleaner, with a pair of gloves and a utility knife included free.

Armaflex ChezMoi is an elastomeric foam made in Europe using Armacell technology. Its self-adhesive side sticks directly to cleaned metal bodywork, with no need to add glue. It insulates the metal bodywork across its entire surface, including the ceiling.

With a thermal conductivity of 0.035 W/(m·K) and an operating range of −50 °C to +85 °C, it insulates against both cold and heat, whether your Jumper becomes a campervan or a work van. The A+ rating (ISO 16000, VOC-free) and Microban® antimicrobial treatment integrated into the material matter in a space where you sleep. Its fire performance meets the FMVSS automotive standard, and the manufacturer guarantees the material for 10 years.

The kit is easy to divide up: the 10 mm material is for the floor and uprights, the 19 mm material for the walls and ceiling, Tape for sealing the joints and Cleaner for cleaning the metal bodywork before installation.

Armaflex ChezMoi 19 mm: insulating the walls and ceiling

The 19 mm material is the standard thickness for large areas. It provides the most insulation where space allows: the Jumper’s side walls, doors and ceiling. The kit contains 4 rolls, covering 24 m².

• Thickness: 19 mm
• Packaging: 6 m² roll (6 m × 1 m)
• Thermal conductivity: λ = 0.035 W/(m·K) at 0 °C
• Vapour barrier: integrated, μ> 7 000
• Operating temperature: −50 °C to +85 °C
• Fire performance: FMVSS automotive standard
• Air quality: A+ rating (ISO 16000), VOC-free
• Antimicrobial treatment: Microban® integrated into the material
• Warranty: 10 years (manufacturer)

Armaflex ChezMoi 10 mm: insulating the floor and uprights

The 10 mm material fits where space is tight: the floor, deep structural reinforcements, wheel arches and uprights. It preserves headroom while insulating the metal bodywork. The kit contains 1 roll, covering 10 m².

• Thickness: 10 mm
• Packaging: 10 m² roll (10 m × 1 m)
• Thermal conductivity: λ = 0.035 W/(m·K) at 0 °C
• Vapour barrier: integrated, μ> 7 000
• Operating temperature: −50 °C to +85 °C
• Fire performance: FMVSS automotive standard
• Air quality: A+ rating (ISO 16000), VOC-free
• Antimicrobial treatment: Microban® integrated into the material
• Warranty: 10 years (manufacturer)

Tape, Cleaner, gloves and utility knife: preparation, cutting and sealing joints

Tape seals the joints between sheets to reduce thermal bridging, while Cleaner degreases the metal bodywork for good adhesion. The kit contains 4 rolls of Tape, providing 60 m of tape, and 1 Cleaner. A pair of gloves and a utility knife are included free for handling and cutting the insulation.

• Tape: 15 m × 50 mm adhesive roll; 4 rolls in the kit
• Cleaner: solvent-based Armaflex cleaner, 1 L bottle, applied with a cloth; 1 in the kit
• Gloves: 1 pair, included free with the kit
• Utility knife: 1, included free with the kit

Compatibility: Citroën Jumper L2H2

The kit is sized for the load area of a Citroën Jumper L2H2 panel van (from 2006 onwards): 3,120 mm long, 1,870 mm wide and 1,932 mm high, with 1,422 mm between the wheel arches. These dimensions are approximate: measure your vehicle before installation, especially if it has already been converted.

Please note: The partition separating the cab is not included in the areas covered by the kit.

The closed cells of Armaflex ChezMoi already act as a vapour barrier, so there is no need for a separate vapour control layer.

The Jumper L2H2 shares its bodywork with the Fiat Ducato and Peugeot Boxer: see the Fiat Ducato L2H2 and Peugeot Boxer L2H2 kits. Other Jumper sizes: L1H1, L1H2, L2H1, L3H2 and L3H3.

How do you install the Armaflex ChezMoi kit in a Citroën Jumper L2H2?

Armaflex ChezMoi is self-adhesive: it can be installed without glue, using a few simple tools, and requires no specialist skills. Just follow the steps in order. Our blog article on installing Armaflex explains each step.

1. Prepare the walls. Identify the areas to insulate. If you plan to fit wood panelling, install the fixing battens first.
2. Clean the bodywork before installation. Dampen a clean cloth with Cleaner and wipe down all the metal bodywork: it must be clean and degreased for the adhesive to bond. Cleaner contains a solvent and gives off fumes: wear a mask and work outside if possible.
3. Mark out. Transfer the dimensions of each area onto the non-adhesive side of the insulation, starting with the floor and uprights (10 mm), then the walls and ceiling (19 mm).
4. Cut the insulation. Put on the gloves included free and cut the sheets to shape using the utility knife in the kit, or an Armacell knife set if you prefer. The foam cuts cleanly.
5. Stick it down. Peel back the protective film as you go, pressing the sheet onto the metal bodywork from the centre outwards to remove trapped air.
6. Seal the joints. Apply Tape to every joint between two sheets to reduce thermal bridging.

Kit specifications

The kit also contains 4 rolls of Tape (15 m × 50 mm), 1 solvent-based Cleaner (1 L bottle), plus 1 pair of gloves and 1 utility knife included free.

Frequently asked questions about insulating a Citroën Jumper L2H2

How can I tell if my Jumper is an L2H2?

The size combines length (L1, L2, L3) and roof height (H1, H2, H3). Measure the usable length of the load floor: approximately 2,670 mm for an L1, 3,120 mm for an L2 and 3,705 mm for an L3. Then measure the interior roof height: approximately 1,662 mm for an H1, 1,932 mm for an H2 and 2,172 mm for an H3. For an L2H2, allow for 3,120 mm by 1,932 mm.

Do I need DIY experience to install this kit?

No. The insulation is self-adhesive and can be cut with the utility knife included free in the kit: clean, cut, stick, then seal the joints with Tape. The six steps in the installation section are all you need, and the video shows you how.

Do you need to add glue?

No, the self-adhesive side of Armaflex ChezMoi sticks directly to the metal bodywork. Cleaner is only used to degrease it so the adhesive bonds properly.

Is this kit suitable for a motorhome built on a Jumper?

It is designed for an L2H2 Jumper panel van being converted into a campervan. For an integrated or coachbuilt motorhome, the living area has different surfaces: measure them before deciding how much Armaflex you need.

Can you double the thickness for very cold conditions?

Yes, you can layer two sheets over exposed areas if you travel in very cold conditions. You will need to add rolls of Armaflex ChezMoi 19 mm to the kit.

Armaflex ChezMoi or Armaflex AF: what’s the difference?

Armaflex ChezMoi is the successor to Armaflex AF for vehicle conversions: the same self-adhesive foam, with fire performance to the FMVSS automotive standard. Our article compares the two ranges point by point.

Is there a kit for the same-size Ducato or Boxer?

Yes: the Fiat Ducato and Peugeot Boxer each have their own L2H2 product page. See the Fiat Ducato L2H2 kit and the Peugeot Boxer L2H2 kit.

Complete the insulation and interior finish of your Citroën Jumper L2H2

This kit insulates the metal bodywork in one go. To add fibrous materials as well, explore our campervan insulation kits.

For the floor, add a layer of 4 mm cork underlay on a roll beneath your floor covering: it reduces the feeling of a cold floor and reduces vibration and road noise. Explore the full cork insulation range.

For the wall finish, start with a sample of stretch lining carpet: you can choose the colour (light grey, dark grey, anthracite, black or beige) in your van before ordering the campervan lining carpet.