Jablite Jabfill
GUARANTEED U-VALUES FOR THE LIFETIME OF THE BUILDING
Jabfill Premium is high performance insulation used to insulate cavity walls in domestic and commercial buildings.
Key Features of Jabfill Premium
- Easy to install
- Lightweight
- Resistant to moisture
- Durable
- Flood proof
- Excellent compression properties
- Contains a flame retardant additive
- Tongue and grooved to prevent cold bridging
- Manufactured from EPS (expanded polystyrene)
- EPS has an A+ rating in the BRE Green Guide to Specification
The U-value that you want to achieve will determine the thickness required.
Jabfill Premium is supplied in thicknesses of 100, 125 and 150mm.
Relevant Applications View our Case Study Sign up for our NewsletterLearn more watch the video above.

Jabfill
Jabfill Premium is a cavity wall insulation system designed to be incorporated into new masonry walls during construction to meet specified U-value requirements. It can be used in conjunction with Jablite Dynamic Cavity Insulation.
The insulation boards have a fluted face and tongued and grooved edge profile which is fully interlocking; when in place the insulation fills the cavity and does not require extra clips to hold in place.
Jabfill Premium is floodproof and no specialised trades or equipment are required to install it.
Cavity Wall
Jablite Jabfill and Jablite Dynamic Cavity are used in the cavity of traditional brick and block wall constructions. The insulation can be placed wholly within the cavity or additional layers can be placed on the internal or external face of the wall.
An improved thermal performance required on two new properties on a small site overlooking Bath presented a challenge to a small developer. More insulation threatened to increase the footprint which would mean getting new planning permission. Then Building Control suggested a solution...
H&N Developments, a small family-run developer working in the Bath area, bought a small piece of land in a great position overlooking Bath. They changed the planning permission so they could build two new properties, a 3-bed detached house and a 3-bed detached bungalow.
Building Control required an improvement in the specified thermal performance of the insulation and recommended Jabfill Premium.
Joe Haysler, H & N Developments said: “Jabfill Premium not only gives us a U-value of .22; it allowed us to keep the overall wall thickness the same.
“We could build the block work right against it and we put the stone or render straight onto it.
“If we had not used Jabfill we would have lost space inside the house and we would have had to re-apply for planning permission because of the increased footprint. This is a restricted site so how we use the space is vital.
“Jabfill also allows us to use bath stone so the new properties tie-in with the existing houses nearby.”


SUSTAINABILITY AND JABLITE INSULATION PRODUCTS
Jablite Insulation Products and the Code for Sustainable Homes
Jablite Insulation Products and BREEAM
Jablite Insulation and the Environment
Jablite Insulation and the Code for Sustainable Homes
The Code for Sustainable Homes (the Code) is the national standard for the sustainable design and construction of new homes. The Code aims to reduce our carbon emissions and create homes that are more sustainable. It applies in England, Wales and Northern Ireland.
A copy of the Code can be found here.
CODE FOR SUSTAINABLE HOMES, CATEGORY 3: MATERIALS
Mat 01: Environmental Impact of Materials
Jablite insulation products are made from EPS (expanded polystyrene) which has an A+ rating in the BRE Green Guide*.
*The BRE Green Guide to Specification provides you with easy-to-use guidance on how to make the best environmental choices when selecting construction materials and components.
Environmental rankings: A+ represents the best environmental performance and E the worst environmental impact.
CODE FOR SUSTAINABLE HOMES, CATEGORY 6: POLLUTION
Jablite Insulation has a Global Warming Potential (GWP) of less than 5 and an Ozone Depletion Potential (ODP) of zero.
The blowing agent used during manufacture is pentane which has zero ODP and a GWP of less than 5.
Jablite Insulation and BREEAM
BREEAM (Building Research Establishment Environmental Assessment Method) sets the standard for best practice in sustainable design and in the measurement of a building's environmental performance. BREEAM enables developers, designers and building managers to demonstrate the environmental credentials of their buildings to clients, planners and other parties,
You can find out more about BREEAM here
BREEAM, MATERIAL 04 INSULATION
In this category, the specified aim of BREEAM is to “recognise and encourage the use of thermal insulation which has a low embodied environmental impact relative to its thermal properties and has been responsibly sourced.”
It is a pre-requisite of BREEAM that any new insulation specified for use within the following building elements must be assessed:
1. External walls
2. Ground floor
3. Roof
EMBODIED IMPACT
Jablite insulation products are made from EPS which has been given an A+ rating by the BRE.
The calculation of embodied impact relative to thermal performance is a function of the material volume (for each build), its BRE Green Guide Rating and its thermal conductivity.
The thermal conductivity of our products is available on both the product packaging and on relevant product technical datasheets which can be found on this website.
RESPONSIBLE SOURCING
Jablite insulation products are manufactured in factories which are ISO 14001 certified and Jablite purchases raw material from suppliers who are ISO 14001 certified.
Key Process (Insulation Manufacture)
ISO 14001: Certificate Number EMS 559414
Supply Chain Processes (supply of materials for end products)
ISO 14001
Certificate Number NL 007629-1
Jablite Insulation and the Environment
Recycling
Jablite insulation products are 100% recyclable. We collect waste from building projects and recycle it.
Our manufacturing process
All Jablite insulation products are manufactured at sites with ISO 14001 certification.
Steam is the main ingredient used in the manufacture of Jablite insulation. The water consumption is low because the water is clean and can be re-used many times in the process.
No solid waste is generated during the manufacturing; any broken or faulty parts that do not pass our stringent quality control standards can be broken up and re-introduced into the process.
Jablite insulation products do not contain and are not manufactured using any substances which are controlled under Montreal or Kyoto Protocols.
Efficient use of natural resources
Jablite insulation products are 98% air and therefore extremely resource efficient. The lightweight nature of Jablite insulation means that less fuel is used when transporting from factory to building site.
Jablite insulation products are made from expanded polystyrene (EPS), a plastic that is obtained from oil. In Europe, the percentage of oil used in manufacturing EPS is 0.1%.
Styrene
The monomer styrene has been manufactured for more than 70 years and is used in a wide range of products.
Styrene exists naturally and can be found in many foodstuffs including strawberries, beans, nuts, beer, wine, coffee beans and cinnamon.
Pentane
Pentane, a non-CFC expansion agent is used to expand polystyrene granules into the cellular structure that makes the production of EPS possible.
Pentane is a slightly volatile liquid in the same chemical family as methane, ethane, propane and butane and is continually being formed in natural processes in the digestive systems of animals and the decomposition of vegetables. It is not considered a substance harmful to health by European health authorities.
Pentane does not contain chlorine and therefore does not harm the ozone layer.
No CFC’s (chloroflourocarbons) or HCFC’s (hydrochloro-fluorocarbons) are used in the manufacture of EPS.

