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www.just-insulation.com - the online resource for all your insulation needs
Buy the very best products - at the very best prices
Updated: Monday, April 8, 2013
Celotex and Kingspan Rigid Insulation Boards - Price Increases
Celotex have increased their prices by 9%. These changes are now reflected on our web site. Kingspan prices will go up by 6% - 9% as of June 3, 2013.
Please Note: Celotex boards are currently in short supply due to the high uptake prior to the price increase. Equally, the pre-increase demand for Kingspan boards has had a dramatically negative effect upon availability.
Priced on Application
Not all of our products are available "off-the-shelf". Sometimes our customers need specialist products, or products that our competitor sell - but at a better price. Now, we have ready access to products from important manufacturers such as Cellecta, Fermacell, Icopal Monarfloor, Kingspan Styrozone, Marmox, Recticel, and more ... delivered direct from the factory to your door.
Special Offers - Pitched roof Over Rafter and Under Rafter insulation packages.
Our ever popular 'Special Offers' have been completely revised and updated to offer options that meet Building Control's current 0.18 U-Value requirements for pitched roof constructions.
Special Offers - Click Here
Product Availability - Domestic
We deliver throughout England and Wales; Scotland; Northern Ireland and Southern Ireland, Channel Islands. However, 90% of our distribution points are located in England. As such, delivery times and availability in some areas are less well serviced than in others.
Eurozone, European, and Overseas Sales
Considerable savings can be achieved by directly importing insulation into your home country.
Join our ever-growing list of off-shore customers who import insulation from the United Kingdom.
Within Europe and beyond, your insulation costs can be dramatically reduced by buying directly from us ... even after paying for the shipping and transportation to your preferred country.
The current building regulations require that an overall CO2 reduction of 25% on the previous standards be achieved. Typically, requiring 45% more insulation, Celotex's latest boards provide one of the best insulation products for meeting the latest Part L, 2010 requirements.
This newly improved thermal performance now offers a thermal conductivity value of 0.022W/mK.
Kingspan phenolic rigid insulation boards are arguably the most effective products on the market today. However, they do come at a price, and may not always offer the best value.
Urethane, Expanded Polystyrene (EPS) and Extruded Polystyrene (XPS) rigid insulation boards can offer a cheaper alternative. However, you should understand the drawbacks.
Multi-Foil, Bubble Foil, Single Foil Laminate + Breather Foil insulation products take a modern approach to achieving thermal efficiency.
Check out the alternatives, to ensure the best choice.
Breather foils protect the building envelope. Consider Tyvek Supro, Tyvek Supro Plus, Tyvek Housewrap, YBS Roofers Choice or YBS Breather Foil RF.
High performance cladding rolls, cavity slabs, and semi rigid batts, for reliable and cost effective results. Knauf Earthwool, Rockwool, Isover Spacesaver
Celotex PL4000, Gyproc Thermaline, Kingspan K17 & K18, and Knauf Thermal Laminates offer a comprehensive selection of performance plasterboards.
YBS Non-Itch and Black Mountain Sheep's Wool insulated rolls and slabs offer high performance eco-friendly, carbon neutral, insulation solutions
Knauf’s & Gyproc products include standard wallboards and specialist plaster-boards to inhibit noise, vapour, moisture transfer, also fire risk.
Combat impact, as well as air born noise, with specialist acoustic and thermal / acoustic insulation products from Karma and Cellecta.
The Just Insulation online store
We offer rigid boards, mineral wool rolls and slabs, to multi-foil insulation at the very best prices. Need insulation boards to insulate Loft or Roof, Walls or Floor? Cheap insulation is our business. At just-insulation.com, we believe our customers require quality products that are manufactured under controlled conditions … products that are safe. We do not wish to supply non-EEC products that may be carcinogenic, a fire or health hazard, create sick building syndrome, or be a cause unnecessary pollution. Neither do we sell sub-standard products or cosmetic seconds, of any sort.
Our online store customers, therefore, are assured of only the best 'branded' products, that provide proven performance that will not raise questions and objections from Building Control … providing they are installed as per the instructions laid out in the relevant certification and manufacturers instructions. Our mission is to bring our customers the very best products at the very best prices.
Due to our high volume of sales, we have managed to negotiate levels of pricing with the Manufacturers or their nominated Distributors that are normally reserved for their very largest business accounts. We then pass on these great prices directly to our customers.
As our prices only include a small handling charge to cover our time, credit card transaction fees, and some small expenses, our prices have to be some of the most competitive available to medium / small builders and builders' merchants. Our customers also include self-builders, D.I.Y. enthusiasts, and retail buyers. We specialise in providing the best quality insulation at prices that are affordable to the small builders, medium sized builders, self-builders and renovators, D.I.Y. specialists, and householders.
Our high turnover ensures that we can broker preferential buying rates, which we pass on to our customers. Of course, we have competitors, but we strive to be the cheapest outlet on the Internet.
The following brief overview of the products included within this web site is a good place to start when endeavouring to ascertain the most appropriate solution to your insulation requirements ...
Actis Triso Super 10 - 30mm - is effective both in summer and winter: In winter, it retains heat within buildings. In summer, it reflects radiation preventing overheating of attic rooms.
Certified as the equivalent of 210mm of mineral wool by BM TRADA Certification.
Actis Triso Sols - 7mm - for floors and underfloor heating uniformly reflects the heat generated by hot water under floor heating systems. Eliminates thermal bridging at floor edges.
Reduces linear heat loss and impact noises.
SuperFOIL SF19 - 40mm- radiant reflective properties, deflect unwanted heat from solar gain in summer, while enhancing insulation in winter. SF19's air barrier properties can control air movement for further energy efficiencies.
SuperFOIL SF40 - 65mm - has radiant reflective properties, reflecting unwanted heat from solar gain in summer and enhancing insulation in winter, and maximises roof and wall insulation within an efficient amount of space. SF40 also has air barrier properties and can control air movement for further energy efficiencies. In situ energy assessment indicates that multilayer foils have benefits over non reflective insulation.
SF60 Multi-foil Insulation - 100mm - the UK’s highest performing multi-layer foil insulation, with a tested R value of 4.643, it can be used to reach levels 3, 4, 5 and 6 of the Code for Sustainable Homes. SF60 has radiant reflective properties, reflecting unwanted heat from solar gain in summer and enhancing insulation in winter.
SuperFOIL SFUF - 6mm - under-floor multi-layer foil thermal and acoustic insulation product for use with solid and suspended floors. Consisting of 13 layers of reflective foil, thermo foam separation layers and topped with a PE layer, SFUF is the ideal for use with hot water underfloor heating systems.
TLX Silver - 30mm - for pitched roofs, walls & floors, is an easily installed, space saving, flexible reflective insulation. Complete with BBA Certification, TLX Silver is our best value multi-foil.
TLX Rafterfit - 30mm - is the latest advance in multi-foil for between rafter applications, which saves time and guarantees 0.2 U-Value when installed according with its BBA certificate
TLX Gold - 33mm - flexible reflective insulation with combined breather membrane is easily and quickly installed. TLX Gold delivers an air barrier; allows water vapour to pass through, and provides all the benefits of multi-foil insulation in one space saving product.
YBS SuperQuilt - 40mm - easy to fit, very flexible, multi-layer insulation that offers significant thermal benefits. Unlike our other multi-foils, SuperQuilt has aluminium foil facings, rather than aluminised polyester. BDA certified, and Class 1 fire rated for surface flame spread.
Multi-foils are most commonly used to complement rigid insulation boards, mineral wool slabs and occasionally mineral glass wool rolls. Generally Multi-foils are available from us in two thickness’s and 40mm.
YBS SuperQuilt (40mm) is arguably the highest specification product. At 40mm thickness SuperQuilt incorporates sheet aluminium in its outer facings, which offers better reflectivity, and performance against fire than the other brands that use aluminium/polymer composite materials.
TLX Silver is probably the best value on the market, offering the lowest price .... yet providing BBA certification, thereby ensuring compliance with Building Regulations provided the insulation guidelines included in the BBA Certificate are followed.
Airtec Bubble Foil, BBA Certified, multi-layer air bubble film insulation with aluminium bonded to either one face (Airtec-Single) or both faces(Airtec-Double)
Foiltec Single Foil BBA Certified, Foil-Tec Single and Foil-Tec Double are reinforced, multi-layer coated foil laminate products designed specifically designed for under floor insulation.
Condensation! Certification! Unless the single foil or bubble foil is being installed under-floor, or in a wall cavity, we only recommend these products for use in new-build properties. Why? Condensation. Please read the full details of these products before purchase.
Certification? We only know of one company, YBS, who has BBA Certification for their bubble foil product, Airtec, see below.
Breather Membranes are designed to protect a property from the ingress of water vapour, while allowing potential condensation to evaporate. Membranes for roofs come in permeable and non-permeable varieties, and can also be used for walls. Breather membranes for walls should not be used on roofs. Breather Foils offer the foregoing benefits, while also being a heat reflecting membrane.
Housewrap from DuPont, the market leading vapour permeable roofing underlay is an extremely water-resistant, airtight and vapour open membrane, cuts energy consumption, heating bills and greenhouse gas emissions to the atmosphere
Supro from Du Pont , with a unique functional layer that is entirely made up of millions of unique micro fibres. These are bonded together to create a maze that stops water penetrating, whilst allowing water vapour to freely move through the fibrous pores.
Supro Plus from DuPont, with integral adhesive lap tape is a non-ventilated pitched roof system helps minimise the risk of condensation. Air infiltration and convective heat losses can also be reduced with the integral sealing all laps.
YBS Breather Foil-FR Roofing Membrane is multi-layer aluminium bubble film insulation. Specially developed for use in timber-frame and modular building construction, and can greatly increase the U-value of a roof or timber-frame wall.
With the new regulations now in force, Celotex advise us that they are leading the way in promoting the impacts and advantages.
Meeting an overall 25% CO2 reduction typically requires 45% more insulation.
They state that a ‘fabric-first’ approach remains the key for achieving compliance, and with an improved thermal performance to 0.022W/mK, Celotex provides one of the best insulation products for meeting Part L 2010.
Celotex General Purpose Boards
These boards can be used throughout a property for a varied selection of applications.
Included in this category are ...
TB4000 - general purpose - often used to inhibit thermal bridging
GA4000 - general purpose rigid insulation board
XR4000 - high performance, general purpose board
CW4000 - Cavity Wall sized boards.
Specialised Boards are application specific and are most commonly sold in pack quantities. Normally, we cannot split these packs ...
CG5000 Fire Resistant Board specifically targeted at partial fill cavity wall applications
EL3000 Energy-Lok is glass tissue faced on both sides - for use in flat roof structures
FF4000 Fast-R is purpose designed for use in internal underfloor heating applications
FR5000 Fire Resistant Board are specifically aimed at pitched roof and wall applications requiring Class O fire performance
PL4000 high performance thermal insulation board bonded to 12.5mm tapered edged plasterboard
TA4000 is a fire rated board, purpose designed for single-ply flat roofing applications
TC3000 built-up flat roofing applications, and is suitable for use in hot applied bituminous and mastic asphalt waterproofing systems
TD4000 Tempchek Deck Range is a PIR insulation board bonded to plywood, used for smaller flat roof applications
Kingspan Phenolic Foam Boards are arguably the best performing product specific insulation boards. However, they come at a price ...
K3 for use in ground floors, on supported or suspended concrete and timber floors
K5 mechanically fixed to masonry or timber frame walls behind polymer modified render systems
K7 pitched roof boards for rafter level insulation for tiled or slated pitched warm roof spaces
K8 premium performance partial fill cavity wall insulation with low emissivity foil facings
K10 is a soffit board designed for use under structural ceilings
K15 rainscreen board is faced both sides and is used to insulate behind cladding systems
K17 performance insulated phenolic plasterboard for Plaster Dab and Adhesive Bonding
K18 performance insulated phenolic plasterboard for Mechanical Fixing
These boards are marketed as being application specific, as per the following
TP10 is rafter level insulation for tiled or slated pitched warm roof spaces ... sold in pack quantities
TR26 and TR27 used for insulation beneath mechanically fixed PVC single-ply waterproofing systems
TR31 is a structural 6mm plywood composite insulation for use beneath partially bonded built up felt
TW50 produced for partial fill cavity wall insulation
TW53 designed for wall insulation for use behind traditional and lightweight polymer modified renders
TW55 specifically for insulating timber and steel wall framing systems
TF70 designed for insulation of solid concrete and suspended ground floors
Expanded polystyrene offers the poorest performance of all the rigid boards, but is commonly the cheapest option. Polystyrene should be considered where performance against fire is not an issue, and in locations where there may be a surfeit of available space, such as below a suspended floor.
Kay Metzeler EPS 70 flooring panels placed above or below a concrete slab or a precast concrete ground floor application.
Kingspan ThermaFloor TF73 was a rigid EPS insulation board bonded to interlocking edge chipboard, that was used for floating and suspended floors. However, it is now discontinued.
Knauf Universal slabs and Rockwool Sound Pro Flexi-Slabs are high quality resin bonded water repellent batts that can be used for thermal, acoustic and fire insulation.
They are suitable for many applications including insulation for roofs, ceilings, floors, walls, and Rockwool Cavity Slabs for cavity walls.
Rockwool Fire Barrier Systems comprise semi-rigid fire retardant insulation that is intended to be clamped - top and bottom.
Knauf Universal Mineral Wool - RS45, RS60, RS80, RS100, RS128, RS140, RS200, plus RS33 (pallet quantities only) and Flexi-Slabs, and Knauf DriTherm Cavity Slabs
Knauf Universal Slabs and Knauf Flexible Slabs are unfaced, rock mineral wool slabs ... available from us in a wide range of densities from 33 to 200 kg/m³ ... it can be used in a wide range of thermal and acoustic insulation applications.
Knauf Universal Slabs are similar to Rockwool but with the added advantage of eco-friendly ECOSE® Technology, benefiting from a natural, formaldehyde-free, binder made from rapidly renewable organic materials instead of petroleum-based chemicals.
Glass mineral wool is made from sand, spun to form millions of fine fibres, with a resin used to bind the fibres to form a mat of material. Knauf now use eco-friendly ECOSE® Technology for a natural, formaldehyde-free, binding agent made from rapidly renewable organic materials instead of petroleum-based chemicals.
Knauf Loft Rolls offer a thermal conductivity level of 0.044W//mK while Isover Spacesaver offers 0.043W//mK (lower is better) and are laid above ceilings to a depth of 270mm - offering a thermal resistance of approximately 6.1m²K/W (higher is better) with the aim of providing a required 0.2 U-Value
Rafter Rolls are semi-rigid so that they may be friction fitted between rafters. Generally they offer a thermal conductivity level of 0.032W/mK. 200mm fitted at rafter level offers a thermal resistance of approximately 6.2m²K/W with the aim of providing a required 0.2 U-Value. By comparison, the equivalent requirement in a PIR board would be Celotex XR140 - 140mm.
Acoustic Partition Rolls generally offer a thermal resistance of approximately 2.33m²K/W per 100mm of thickness. Commonly a thickness of 65mm would be required to complement timber stud party walls, and 75mm for metal studs.
Currently there are two product types of eco-aware products, these are manufactured using either sheep's wool or recycled plastic bottles. Sheep's wool insulation is effective, but 15% of its composition is made up of chemicals to inhibit the growth of mould, and infestation. Non-itch insulation, manufactured for recycled plastic bottles, is a great way of putting use to plastics that would otherwise end up in land-fill. It is however, quite expensive.
YBS Non-Itch Rolls and eco-friendly insulation manufactured from recycled plastic bottles.
Black Mountain natural sheep's wool offers
improved thermal and acoustic ratings over most
man-made materials. It absorbs and releases moisture with no impact upon
We offer durable, high quality linings for walls and ceilings, and stairwells and corridors. Suitable for even the most demanding fire, sound, thermal, moisture, vapour and impact resistance requirements in an unrivaled range of types and sizes.
Gyproc Plasterboards from British Gypsum offer modern plasterboards that provide high
quality linings and are available in a broad range of types and sizes, enabling you to select exactly the
right product for every application
Knauf Plasterboards are manufactured from the highest quality gypsum, with a purity of not less than 95%, making these plasterboards light, strong and easy to cut.
Wallboards in this section include Standard Plasterboards, Vapour Resistant, Moisture Resistant, and Fire Resistant, and those providing basic acoustic and thermal insulation.
Speedline Drywall Partitioning Systems are popular, high quality, drywall systems and accessories. The acoustic stud have design features that offer excellent installation benefits, including built in discontinuity for improved sound insulation.
High performance in key speech frequency bands, excellent structural strength and integrity, and easy and fast to install.
Thermal Laminates are traditional gypsum wallboards bonded with additional insulating materials to provide thermal and acoustic performance, plus condensation control where required.
Fermacell Dry Lining Boards are high performance multi-purpose building board, is manufactured using recycled components, combined to form dense sheet building materials During the manufacturing process of Fermacell the boards are pressed rather than extruded, so are stronger and more dense ... providing superior performance, with the ability to carry fixtures and fittings up to 50kg fixed directly to the boards.
Gyproc ThermaLine comprise plasterboard laminated to a layer of rigid thermal insulation such as expanded polystyrene - ThermaLine Basic, extruded polystyrene - ThermaLine Plus, and phenolic foam - ThermaLine Super.
Knauf Thermal Laminates prevent wastage of heat through the walls, which helps to reduce energy required for heating, thereby offering excellent thermal resistance whilst minimising costs, space requirements, and loss of valuable room space.
Venture, part of 3M, are considered by many to be the de-facto standard for building and construction.
Ideal for use with insulation, heating, air-conditioning, ventilation, construction, industrial, or glazing, we can supply single or double coated films, foams, tapes, papers, and more.
VentureTape is most commonly used by our customers for the taping
of multi-foils, heat reflective membranes, thermo reflective foils, and
aluminium faced multi-purpose rigid foam insulation boards.
VentureClad five-ply laminated foil is a puncture resistant facing for
exterior and interior applications.
Applicable to foam glass, mineral fibre insulation, nitrile rubber foam, and semi-rigid and rigid foam insulation. Specify for replacement of fab and mastics, butyl duct wrap, and other interior and exterior jacketing materials.
Cellecta Acoustic Insulation (Priced on Application) is one of the UK’s largest producers of environmentally friendly high performance
acoustic insulation products. Cellecta products are popular with all sectors of the construction industry including house builders, building contractors, ground workers, screeders, roofers and dryliners, who commonly use these products in new builds, refurbishments, and wall and floor conversions.
Karma Acoustics were initially launched by E-Cousti, with a range of products based around innovative acoustic membranes, providing a wide range of solutions. Karma is steadily establishing itself as the market leader, offering a wide range of competitively priced, acoustic solutions for both new build and refurbishment projects for walls, partitions, floors and other structural applications.
The expanded closed-cell structure of Armaflex Insulation makes it an efficient insulation. Formaldehyde free, low VOCs, fibre free, dust free.
Armaflex’s closed-cell structure resists mould and mildew, as well as heat and moisture flow.
Armacel Elastomeric Insulation prevents condensation and energy losses.
Class 'O' Armaflex is the flexible, closed cell, elastomeric, nitrile
rubber insulation that offers reliable protection against condensation
and effectively prevents energy loss.
The supply of insulation products is our mission, rather than fixings and other associated items such as tools, screws, nailable plugs et cetera.
However, we do supply some of the larger/heavier complementary products such as Drywall Adhesives and Fillers, Specialist Building Tapes, Insulation Clips, and so on.
We always strive to minimise the impact of product prices and transportation increases. However, due to the every increasing costs of fuel, delivery charges are effected.
Delivery charges for online orders
Internet Orders: £350.00+ ex-VAT - No charge
Internet Orders: £250.00 - £350.00 ex-VAT = £20.00
Internet Orders: £175.00 and £250.00 ex-VAT = £30.00
Internet Orders:£100.00 and £175.00 ex-VAT = £40.00
Minimum Online order: £100.00 ex-VAT
Delivery charges for Telephone orders
Telephone orders may incur an additional charge due to the Charge Card fraud screening measures that we are forced to undertake.
We will not accept Credit and/or Debit Card settlement for telephone orders where the Billing Address and the Delivery Address differ. In such cases, customers are required to pay by Bank Transfer or by Cheque.
Orders made by telephone may only be accepted if the Cardholder is prepared to contact the issuing bank of the Charge Card used to make the purchase, to request an 'Authorisation Code.' This is a simple procedure that should only take a couple of minutes.
Telephone Orders: over £500.00 - No charge.
Telephone Orders: between £400.00 and £500.00 ex-VAT = £20.00
Telephone Orders: between £300.00 and £400.00 ex-VAT = £30.00
Telephone Orders: between £225.00 and £300.00 ex-VAT = £40.00
Minimum Telephone Order = £225.00 = ex-VAT
Please Note: Delivery to geographically remote locations on mainland UK may incur extra charges if we are required to use an external carrier. Charges can be as much as £1.00 per mile, to and from the depot nearest to the delivery address.
We reserve the right to opt out of small orders that have minimal quantities from different
distribution points that will each incur individual delivery charges.
Delivery charges to off-shore and obscure geographical regions
Delivery charges are priced upon application for UK mainland postal codes BT; DD; PH; AB; IV; KW; PA; Inner & Outer Hebrides; Channel Islands; Isle of Man; Northern Ireland and Southern Ireland.
Orders and Deliveries to Eurozone, other EC Countries, and the rest of the world
Buying insulation from us, you can save very significant amounts - even after shipping and carriage charges. If your order exceeds £1,000 before VAT you may be paying very much more than you need. Enjoy the benefits of fair trade in Europe, and consider our prices before buying locally.
Deliveries to EC Member States, and to areas outside of the EC, are generally calculated on the assumption that the the Buyer pays for the insurance and the transportation charges from a delivery point they nominate within the United Kingdom.
We work with a number freight handling agents and can offer buyers information relevant to deliveries to their countries.
Arrangements can be made for VAT to be paid in the country to which the goods are being exported. However, conditions may apply.