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110mm ECO/CW Unilin Cavity Board Partial Fill (pack of 4)

110mm ECO/CW Unilin Cavity Board Partial Fill (pack of 4)
110mm ECO/CW Unilin Cavity Board Partial Fill (pack of 4)
110mm ECO/CW Unilin Cavity Board Partial Fill (pack of 4)
110mm ECO/CW Unilin Cavity Board Partial Fill (pack of 4)
110mm ECO/CW Unilin Cavity Board Partial Fill (pack of 4)
110mm ECO/CW Unilin Cavity Board Partial Fill (pack of 4)
110mm ECO/CW Unilin Cavity Board Partial Fill (pack of 4)
  • 110mm x 450mm x 1200mm Unilin ECO/CW 360 Cavity Wall Insulation
  • Partial fill cavity wall insulation board with an engineered shiplap jointing
  • ECO/CW can achieve a Passive U-Value of 0.15 W/m2K in a traditional cavity wall
  • Minimising the threat of Thermal Bridging and improving the U-Value of the wall
  • Premium modified PIR insulation core with textured robust low emissivity foil facings
Estimated delivery:
In Stock
£ 149.88
Ex VAT: £ 124.90

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110mm Unilin ECO/CW 360 Cavity is a rigid PIR insulation board with textured robust low emissivity foil facings and engineered shiplap jointing used as a partial fill cavity wall insulation.

Unilin ECO/CW cavity system incorporates robust facings, engineered rebated jointing details, preformed corners and has a Lambda of 0.020 W/mK.

When building with Cavity Wall 360 a residual cavity is maintained, offering excellent protection against wind-driven rain.

Unilin ECO/CW 360 Cavity Wall System is an environmentally sound choice for Passive and low energy builds.

This unique Unilin ECO/CW system can achieve a Passive U-Value of 0.15 W/m2K in a traditional cavity wall.

The recommended residual cavity width required is 50mm in accordance with UK Building Regulations.

ECO/CW is minimising the threat of Thermal Bridging and improving the overall U-Value of the wall.

A residual cavity is the air space that remains when Cavity Wall 360 is placed against the inner leaf of the cavity of a wall.

ECO/CW 360 is a part of a design solution to achieve RIBA/RIAI Climate Challenge 2030, LETI Standards and the Future Homes Hub targets.




Thickness: 110mm

Width: 450mm

Length: 1200mm

Size: 110mm x 450mm x 1200mm

Board Coverage: 0.54m2

Pack Coverage: 2.16m2

Profile: Rebated Edge

R-Value: 5.50m2K/W

Thermal Conductivity: 0.020 W/mK

Reaction to Fire: NPD

Compressive Strength: >120 (kPa)


Unilin ECO/CW 360 Cavity Features:

 · Engineered shiplap jointing.

 · For passive and low energy builds.

 · Excellent protection against wind-driven rain.

 · Minimising the threat of Thermal Bridging.

 · Improving the overall U-Value of the wall.

 · Halogen free and biodegradable packaging.

 · Suitable for traditional partial fill cavities.

 · Textured robust low emissivity foil facings.

 · U-Value of 0.15 W/m2K in a traditional cavity wall.

 · Bio-enhanced PIR rigid foam insulation.

 · Achieve RIBA/RIAI Climate Challenge 2030

 · Enhanced performance lambda as low as 0.020 W/mK.

 · Meets U-Values specified in the Building Regulations.

 · Achieve LETI Standards and the Future Homes Hub targets.


Unilin ECO/CW Cavity Wall 360 Installation Guidelines:

 · Under PD 6697:2019 Recommendations for the design of masonry structures to BS EN 1996-1-1 and BS EN 1996-2.

 · It is recommended that no more than four courses of block are laid on the preceding skin before installation of the insulation.

 · This allows for wall ties to be inserted accurately and without bending and thus distorting the physical characteristics of the wall ties.

 · Ensure the wall is level and free of any protrusions before installing the insulation with all edges tightly interlocked.

 · Mortar should be struck from the inner cavity face of the block to ensure mortar squeeze is minimised on the cavity side.

 · The inner and outer courses can then be built.

 · Insert wall ties maximum 600mm centres one block course below DPC.

 · Wall ties should incorporate retaining clips, be Agrément approved and conform to BS EN 845-1: 2013 + A1: 2016.

 · Secure cavity boards tight against inner leaf with retaining clip on wall ties.

 · Excess mortar should be removed from the inner leaf to ensure a tight fit against blockwork.

 · Boards should be installed with the tongue uppermost and joints should be tightly butted.

 · Ensure a minimum 150mm overlap with the floor insulation.

 · The receiving block should be plumb to provide a flat surface to accept the insulation.

 · As with setting out, installation should commence from adjacent corners using the Cavity Wall preformed corner boards.

 · Alternate corner boards will achieve the offset break bonded pattern for the insulation.

 · Maintain a 50mm residual cavity to suit all exposure zones.

 · In isolated circumstances, where the cavity is obstructed, a minimum 25mm residual cavity should always be maintained and extra consideration should be given to fixings and weatherproofing.

 · Any reduction in cavity width should be agreed with Building Control.

 · Place wall ties at maximum 900mm x 450mm centres, securing with a minimum of 3 wall ties per board.

 · Ensure block joints are fully bonded with unbroken mortar.

 · Fix wall ties 225mm vertically and 150mm horizontally from the face of unbonded jambs.

 · Ensure wall ties and cavities are kept clean of mortar.

 · Wall ties should be sloped downwards towards the outer leaf.

 · A cavity board should be used to keep the cavity clean

 · Cavity Wall corner boards and cavity closers may be fitted to provide robust detailing.

 · Newly erected masonry should be covered to protect the insulation and to prevent the mortar being washed out of the joints by rain.

 · Walls should be prevented from becoming saturated by covering the top of the wall with waterproof sheets; this is particularly important to minimise the incidence of efflorescence and lime bloom.

 · When any working platform is not in use, the inner board should be turned away from the wall to prevent the splashing of the wall face.

 · ACDs must be followed to ensure that installation is in accordance with current Building Regulations and accounted for in the energy calculation.


Certification and standards:

 · BBA Certification No.12/4956.

 · BS EN ISO 9001 Quality Management System.

 · BS EN ISO 14001 Environmental Management System.

 · BS EN 13165.


*Further information may be found in our Downloads section.

Fairly easy access to all PDF files.

Datasheet ǀ Declaration of Performance - DoP ǀ BBA Certificate ǀ Installation Guide ǀ Certificates ǀ Brochure ǀ SPEC Sheet 


*Special Product - Non returnable cancelable.

Board covarage 2.16 m2
Colour Light yellow
Compressive Strength 120 kPa (10% Compression)
Length 1200mm
Material Bio-enhanced PIR Rigid Foam
Pack Coverage 2.16m2
Profile Rebated Edge
R-Value 5.50 m2K/W
Size 110mm x 450mm x 1200mm
Thermal Conductivity 0.020 W/mK
Thickness 110mm
Width 450mm
Fire Classification NPD
Building Regulations Compatible
Coverage 2.16m2
Finish Textured robust low emissivity foil facings
Quantity 4 sheets
Shipping method Articulated Vehicle ǀ Courier
Grade Partial Fill Cavities
Applications Traditional partial fill cavity walls
BBA Certified Yes
Vapour Control Layer Yes
Fixing method Wall Ties, Mortar
Foil faced Yes, textured robust low emissivity foil facings
ETA Notification Yes
U-value 0.15 W/m²K
Features Passive U-Value of 0.15 W/m2K
Manufacturer Unilin Insulation®

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We deliver insulation materials to Mainland UK only. Deliveries to Highlands, Northern Ireland, Isle of Wight etc.. might be possible at additional cost.
We offer free delivery on most of the orders above £300 (excluding VAT) (except special products - shipping cost via courier - products marked ''Request A Quote'')

Delivery of some insulation materials might be extended due to the current situation (Covid-19, stock shortages, allocations).
If you need materials quickly please contact us - we will do our best to help you source materials needed.

We do not deliver on weekends and bank holidays. Sometimes we can deliver on Saturdays - please check with us before placing the order.
If you need any further information please contact us tel. 02081910776

We can help to calculate price per m2 or linear meter (one meter in length) cost, please just contact us via phone 02081910776, email or live chat. Alternatively, you can work it out yourself quickly and easily: to get cost per meter square please divide price shown in orange area by ''Required area (m2)'' Example price of £28.80 divided by board coverage 2.88m2 = cost of £10.00 per m2.


No matter whether you choose a local installer or a national company, there’s a few tips to help you find the right installer for your home insulation improvements, such as asking for recommendations and making sure that they’re part of a certification scheme. This makes sure that they have the right skills and standards of workmanship to carry out the installation, and you can be sure that they know exactly what they are doing.


1. Thermal inspection picture in portfolio

It’s worth seeing a installer’s previous work. There’s no harm asking if you can see any properties nearby that they’ve installed insulation in. Best way would be to see Infrared Thermal Imaging Inspections. Thermal cameras spot small, but key changes in temperature in different areas of a house, identifying problematic areas that the human eye never could and some that a visual inspection could only hypothesize.

2. Reviews

Along with checking recommendations and previous work, finding reviews online can often be a great way to find out if they provide a good service or not. However, it’s best not to solely rely on reviews you may find or review websites, as there’s no controlling who writes them.

3. Compare prices

Comparing prices will also ensure companies can’t take advantage of you and give you a fair price. 

4. Word of Mouth

The best way to find a great insulation installer is through recommendations. Make sure you ask friends and family. They will most likely give you their honest opinion and can tell you from first hand experience.


Whether you require a wall, cladding, external wall, loft or floor insulation fitted, you can find and hire your local insulation installers from popular UK web pages. A simple internet search will return thousands of potential installers near your area.



We are the stockist of construction materials and related products for both trade and DIY from most recognizable brands in the UK like Cordek, RCM, Promat, Rockwool, Isover, Celotex, Xtratherm, Ursa, Low-E, Cedral, Kingspan, Dufaylite, British Gypsum, K-rend, Ecotherm, Iko enertherm, Kay-Metzeler, Terrawool to allow you to complete your insulation job on time at competitive prices and the highest standards.


Whether you are a large company or a DIYer, if you need a large amount of insulation materials, we can offer quantity discounts at the best prices. Please contact us and our friendly customer service will try to find the best and cheapest solutions for you. We value your time and we will try to deliver the products as soon as possible at a reasonable price to your construction site or house. The UK's leading insulation supplier near you and your needs. Price List available upon request.
110mm ECO/CW Unilin Cavity Board Partial Fill (pack of 4)
110mm ECO/CW Unilin Cavity Board Partial Fill (pack of 4)
£ 149.88