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![Celotex PIR Insulation Board 1200 x 2400mm]( "Celotex PIR Insulation Board 1200 x 2400mm")
![Celotex PIR Insulation Board 1200 x 2400mm]( "Celotex PIR Insulation Board 1200 x 2400mm")
Celotex PIR Insulation Board 1200 x 2400mm
£20.71 - £115.96 per sheet (Ex VAT)£24.85 - £139.15 per sheet (Inc VAT)Celotex XR4110 is a high performance rigid polyisocyanurate (PIR) insulation board that is extremely lightweight making it very easy to handle, transport and extremely easy to install due to its rigid nature. Being a high performance PIR insulation... -
![Polystyrene Flooring Sheets SDN 2400 x 1200mm]( "Polystyrene Flooring Sheets SDN 2400 x 1200mm")
Polystyrene Flooring Sheets SDN 2400 x 1200mm
£6.00 - £35.96 per sheet (Ex VAT)£7.20 - £43.15 per sheet (Inc VAT)Expanded polystyrene comes in a wide variety of shapes and sizes. Within the construction industry, 2400 x 1200mm. EPS is a combustible material but providing it is installed correctly in accordance with the manufacturers' instructions, it will not... -
![Celotex CW4000 PIR Cavity Wall Insulation 1200 x 450mm]( "Celotex CW4000 PIR Cavity Wall Insulation 1200 x 450mm")
![Celotex CW4000 PIR Cavity Wall Insulation 1200 x 450mm]( "Celotex CW4000 PIR Cavity Wall Insulation 1200 x 450mm")
Celotex CW4000 PIR Cavity Wall Insulation 1200 x 450mm
£6.85 - £13.27 per sheet (Ex VAT)£8.22 - £15.92 per sheet (Inc VAT)The Celotex CW4000 range are high performance insulation boards for Cavity Walls. It features low emissivity foil facings giving improved thermal insulation performance within cavity air spaces, when compared to typical PIR products. This PIR insulation... -
![ISOVER Spacesaver Wool Insulation Loft Roll]( "ISOVER Spacesaver Wool Insulation Loft Roll")
![ISOVER Spacesaver Wool Insulation Loft Roll]( "ISOVER Spacesaver Wool Insulation Loft Roll")
ISOVER Spacesaver Wool Insulation Loft Roll
£46.49 - £55.14 per roll (Ex VAT)£55.79 - £66.17 per roll (Inc VAT)ISOVER Spacesaver is a glass mineral wool roll available in a range of thicknesses from 100-200mm, and supplied pre-perforated to 3 x 386mm and 2 x 580mm width to fit between common joists. The economical and easy-to-install glass mineral wool rolls are... -
![Unilin Thin-R Pitched Roof Insulation PIR Board 2400 x 1200mm]( "Unilin Thin-R Pitched Roof Insulation PIR Board 2400 x 1200mm")
Unilin Thin-R Pitched Roof Insulation PIR Board 2400 x 1200mm
£16.88 - £92.38 per sheet (Ex VAT)£20.26 - £110.86 per sheet (Inc VAT)Unilin / Xtratherm XT Thermal Liner MF Insulation PIR Board is a composite insulated panel of Unilin / Xtratherm PIR insulation core with a composite foil facing bonded to 12.5mm tapered edge plasterboard for internal walls, sloped roofs and ceilings... -
![Rockwool Sound Insulation Slab 1200 x 400mm]( "Rockwool Sound Insulation Slab 1200 x 400mm")
![Rockwool Sound Insulation Slab 1200 x 400mm]( "Rockwool Sound Insulation Slab 1200 x 400mm")
Rockwool Sound Insulation Slab 1200 x 400mm
£37.67 - £39.88 per pack (Ex VAT)£45.20 - £47.86 per pack (Inc VAT)Rockwool Sound Insulation Slab 400 x 1200mm A1 Fire resilient stone wool insulation slabs optimised for sound proofing. ROCKWOOL Sound Slab is used to create quiet, peaceful and comfortable spaces in both residential and commercial environments. Being... -
![Ecotherm Eco Cavity PIR Insulation Board]( "Ecotherm Eco Cavity PIR Insulation Board")
Ecotherm Eco Cavity PIR Insulation Board
£7.81 - £14.25 per sheet (Ex VAT)£9.37 - £17.10 per sheet (Inc VAT)Suitable for use in cavity walls, Eco-Cavity has a fibre-free rigid polyisocyanurate (PIR) core whilst both sides feature an aluminium foil composite. -
![Rockwool RWA45 Acoustic Insulation Slab 1200 x 600mm]( "Rockwool RWA45 Acoustic Insulation Slab 1200 x 600mm")
Rockwool RWA45 Acoustic Insulation Slab 1200 x 600mm
£31.66 - £42.42 per pack (Ex VAT)£37.99 - £50.90 per pack (Inc VAT)Rockwool RWA45 Insulation Slabs 600 x 1200mm is a A1 stone wool insulation for general building applications. ROCKWOOL RWA45 is a general building slab designed for use as acoustic, thermal and fire protection of walls, ceilings, floors and roofs. The... -
![Ecotherm Eco Cavity PIR Insulation Board Tongue & Grooved 1200 x 450 x 50mm]( "Ecotherm Eco Cavity PIR Insulation Board Tongue & Grooved 1200 x 450 x 50mm")
Ecotherm Eco Cavity PIR Insulation Board Tongue & Grooved 1200 x 450 x 50mm
Eco-Cavity is rigid polyisocyanurate foam with aluminium foil composite on both sides. It is a high performance insulation used as a full cavity fill within traditionally built masonry walls. It is conveniently sized so that the boards co-ordinate with... -
![ISOVER Cavity Wall Slab 36 455 x 1200mm (Various Thickness)]( "ISOVER Cavity Wall Slab 36 455 x 1200mm (Various Thickness)")
ISOVER Cavity Wall Slab 36 455 x 1200mm (Various Thickness)
£41.50 - £55.82 per pack (Ex VAT)£49.80 - £66.98 per pack (Inc VAT)ISOVER Cavity Wall Slab 36 is a glass mineral wool slab supplied in 50-150mm thicknesses. The strong, resilient, and flexible batts are 455mm wide to fit between standard wall tie spacing, for warmer rooms and greater occupant comfort. -
![Celotex PL4000 Thermal PIR Insulation Board 1200 x 2400mm]( "Celotex PL4000 Thermal PIR Insulation Board 1200 x 2400mm")
![Celotex PL4000 Thermal PIR Insulation Board 1200 x 2400mm]( "Celotex PL4000 Thermal PIR Insulation Board 1200 x 2400mm")
Celotex PL4000 Thermal PIR Insulation Board 1200 x 2400mm
£56.86 - £67.90 per sheet (Ex VAT)£68.23 - £81.48 per sheet (Inc VAT)Celotex PL4000 range is an easy to install rigid polyisocyanurate (PIR) insulation board with a paper facing, laminated to a sheet of 12.5mm plasterboard with a tapered edge. This combination board of plasterboard and insulation saves time and hassle on... -
![Rockwool Thermal Insulation Roll 2750 x 1200 x 100mm]( "Rockwool Thermal Insulation Roll 2750 x 1200 x 100mm")
Rockwool Thermal Insulation Roll 2750 x 1200 x 100mm
The Rockwool Thermal Insulation Roll 100 x 1200 x 2750mm is a A1 fire rated mid-density insulation roll designed for use in lofts. ROCKWOOL Thermal Insulation Roll is designed to increase home comfort and save energy, by insulating one of the most... -
![ISOVER APR 1200 Acoustic Partition Insulation Loft Roll (2 x 600mm)]( "ISOVER APR 1200 Acoustic Partition Insulation Loft Roll (2 x 600mm)")
ISOVER APR 1200 Acoustic Partition Insulation Loft Roll (2 x 600mm)
£58.81 - £80.58 per roll (Ex VAT)£70.57 - £96.70 per roll (Inc VAT)Isover Acoustic Partition Roll (APR 1200) provides high levels of acoustic insulation in partitions, walls and floors to meet requirements in domestic and non-residential buildings. A glass mineral wool roll providing high levels of acoustic insulation... -
![Rockwool Sound Insulation Slab 1200 x 600mm]( "Rockwool Sound Insulation Slab 1200 x 600mm")
![Rockwool Sound Insulation Slab 1200 x 600mm]( "Rockwool Sound Insulation Slab 1200 x 600mm")
Rockwool Sound Insulation Slab 1200 x 600mm
£56.79 - £62.36 per pack (Ex VAT)£68.15 - £74.83 per pack (Inc VAT)Nuisance noise doesn’t always come from external sources. Whether in a living or working environment, controlling the passage of sound between internal spaces can make the difference between a peaceful experience… or a much more stressful one. The... -
![Unilin XT Thermal Liner DD Insulation PIR Board 2400 x 1200mm]( "Unilin XT Thermal Liner DD Insulation PIR Board 2400 x 1200mm")
Unilin XT Thermal Liner DD Insulation PIR Board 2400 x 1200mm
£40.72 - £61.46 per sheet (Ex VAT)£48.86 - £73.75 per sheet (Inc VAT)Unilin / Xtratherm XT Thermal Liner is specifically designed to create a thermal break in the building envelope and provide a maximum level of insulation with minimal acoustic impact. It is perfectly suited to modern constructions projects where high... -
Celotex Thermaclass Cavity Wall 21 Insulation 1190 x 450mm
£14.62 - £22.75 per sheet (Ex VAT)£17.54 - £27.30 per sheet (Inc VAT)Thermaclass Cavity Wall 21 is an easy to install, polyisocyanurate (PIR) insulation board for full fill cavity wall applications, with excellent thermal performance (0.021 W/m.K). Featuring a low emissivity foil facing, it can be installed with up to a... -
![Celotex XR4125 PIR Insulation Board 1200 x 2400 x 125mm]( "Celotex XR4125 PIR Insulation Board 1200 x 2400 x 125mm")
![Celotex XR4125 PIR Insulation Board 1200 x 2400 x 125mm]( "Celotex XR4125 PIR Insulation Board 1200 x 2400 x 125mm")
Celotex XR4125 PIR Insulation Board 1200 x 2400 x 125mm
Celotex XR4125 is a rigid polyisocyanurate (PIR) insulation board that is high preforming, it offers excellent thermal performance with a thermal conductivity of 0.022 W/m.K. With a low emissivity foil facing it can also offer enhanced thermal... -
![Ecotherm Eco Liner PIR Dry Lining Insulation Board 2400 x 1200 x 52.5mm]( "Ecotherm Eco Liner PIR Dry Lining Insulation Board 2400 x 1200 x 52.5mm")
![Ecotherm Eco Liner PIR Dry Lining Insulation Board 2400 x 1200 x 52.5mm]( "Ecotherm Eco Liner PIR Dry Lining Insulation Board 2400 x 1200 x 52.5mm")
Ecotherm Eco Liner PIR Dry Lining Insulation Board 2400 x 1200 x 52.5mm
Eco Liner is a 2-in-1 plasterboard which can be fitted either mechanically or using the dot and dab process. It has many applications and can be used for cavity, solid and timber internal walls. It can also be used on flat and pitched roofs and in loft... -
![ISOVER Cavity Wall Slab 34]( "ISOVER Cavity Wall Slab 34")
![ISOVER Cavity Wall Slab 34]( "ISOVER Cavity Wall Slab 34")
ISOVER Cavity Wall Slab 34
£151.94 - £152.42 per pack (Ex VAT)£182.33 - £182.90 per pack (Inc VAT)ISOVER Cavity Wall Slab (CWS) 34 is a BBA certified glass mineral wool slab, made from 75% recycled glass. Cavity Slab 34 offers exceptional thermal performance in external masonry cavity walls and with thermal conductivity of 0.034 W/m.K. it can reduce... -
![ISOVER RD Party Wall Insulation Roll]( "ISOVER RD Party Wall Insulation Roll")
![ISOVER RD Party Wall Insulation Roll]( "ISOVER RD Party Wall Insulation Roll")
ISOVER RD Party Wall Insulation Roll
£64.42 - £68.65 per roll (Ex VAT)£77.30 - £82.38 per roll (Inc VAT)The ISOVER RD Party Wall glass mineral wool roll is a cost effective acoustic insulation used to reduce the passage of sound across a masonry party wall and minimise the air movement within the cavity, improving its thermal performance. Available in a... -
![ISOVER Slab 32 Cavity Wall Insulation 455 x 1200mm]( "ISOVER Slab 32 Cavity Wall Insulation 455 x 1200mm")
ISOVER Slab 32 Cavity Wall Insulation 455 x 1200mm
£58.62 - £76.36 per pack (Ex VAT)£70.34 - £91.63 per pack (Inc VAT)ISOVER Cavity Wall Slab (CWS) 32 is a BBA certified glass mineral wool slab that is made from 75% recycled glass. Cavity Slab 32 offers exceptional thermal performance in external masonry cavity walls, with a thermal conductivity of 0.032 W/m.K. hence... -
![Rockwool Flexi Thermal Acoustic Insulation Slab 1200 x 400mm]( "Rockwool Flexi Thermal Acoustic Insulation Slab 1200 x 400mm")
Rockwool Flexi Thermal Acoustic Insulation Slab 1200 x 400mm
£37.69 - £40.78 per pack (Ex VAT)£45.23 - £48.94 per pack (Inc VAT)Rockwool FLEXI® 400 x 1200mm is a A1 multi use, dual purpose thermal and acoustic insulation product that offers perfect friction fit for framed constructions. ROCKWOOL FLEXI® is a unique, flexible edged insulation product, developed using patented... -
![Rockwool Flexi Thermal Acoustic Insulation Slab 1200 x 600mm]( "Rockwool Flexi Thermal Acoustic Insulation Slab 1200 x 600mm")
Rockwool Flexi Thermal Acoustic Insulation Slab 1200 x 600mm
£53.13 - £75.61 per pack (Ex VAT)£63.76 - £90.73 per pack (Inc VAT)Rockwool FLEXI® 100 x 600 x 1200mm is an A1 insulation slab that offers perfect friction fit for framed constructions. ROCKWOOL FLEXI® is a unique, flexible edged insulation product, developed using patented technology for a fast and easy, secure... -
![Rockwool Full Fill Cavity Batt Insulation 1200 x 455mm]( "Rockwool Full Fill Cavity Batt Insulation 1200 x 455mm")
Rockwool Full Fill Cavity Batt Insulation 1200 x 455mm
£34.78 - £43.27 per pack (Ex VAT)£41.74 - £51.92 per pack (Inc VAT)The Rockwool Full Fill Cavity Batt 455 x 1200mm is a A1 insulation slab for masonry cavity walls. ROCKWOOL® Cavity insulation is a full-fill insulation solution for masonry cavity wall construction, suitable for use in new builds and extensions...
Insulation
Insulation is an effective way to save energy in your home or property, as it helps to prevent draughts as well as energy from depleting out of the building, ultimately wasting money. Insulating your loft or attic is a simple and effective way to reduce heat loss and reduce your overall heating bill. Loft insulation is effective for at least 40 years.
Whilst saving energy is the most common incentive for home and property owners, there are many other reasons as to why you might want to install insulation. Insulation can prevent sound from travelling either around your home or between you and neighbouring houses. Good insulation also helps to prevent mould and condensation from appearing in your home, which is often caused by the differing temperatures of your internal and external walls. Insulation can also form part of your home’s resistance against the quick spread of fire.
There are a variety of different insulation products that we offer at Howarth and knowing which one to purchase will be determined by where you wish to use it and what you want to achieve from it, such as:
Glass wool, which is suitable for lofts and a variety of walls. Glass wool is manufactured from recycled glass, and it is not combustible, so it is ideal for offering both acoustic and thermal performance, as well as being water-resistant. It can also act as a cavity wall insulation, which means that it will trap the air in the insulation material that has been injected into the cavity. The clever use of materials helps trap warm air and prevent air circulating. As a result, heat loss is prevented using conduction and convection.
PIR boards are a rigid insulation board that can be used in walls, flooring, and lofts.
Polystyrene is ideal for walls, flooring and under concrete. It offers an excellent thermal insulator property as an insulation board, and it is also very easy to work with.
Rockwool is a stone-based insulation, which is suitable for cavities, partitions, and external walls, as well as floors and lofts.Pipe insulation is used to insulate all hot and cold-water pipes, including radiators and boiler systems. These are designed to prevent pipes from freezing during the cooler months.
For further information and expert advice about insulation, please contact your friendly local Howarth branch.
Frequently Asked Questions
How to guides
Insulation for every application
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Celotex Insulation
What is Celotex? A guide on what Celotex Insulation is and how its used around your home.
Isover Insulation
Isover Insulation - Learn more about Isover and their types of insulation boards.
