Check local branch stock
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Unilin Thin-R Plus Hyfloor Insulation PIR Board T&G 2400 x 1200 x 150mm
An unbeatable choice in all thermal insulation, Hyfloor (T&G) has a superior thickness to performance ratio allowing the lower targets required under Building Regulations. XT/HYF (T&G) tongue and groove jointing offers a practical on-site solution that... -
Unilin Thin-R Plus Hyfloor Insulation PIR Board T&G 2400 x 1200 x 75mm
An unbeatable choice in all thermal insulation, Hyfloor (T&G) has a superior thickness to performance ratio allowing the lower targets required under Building Regulations. XT/HYF (T&G) tongue and groove jointing offers a practical on-site solution that... -
Unilin Thin-R Polyiso Strips Insulation PIR Board 1200 x 100 x 25mm
Unilin / Xtratherm Thin-R XT/STR is a CFC/HCFC free, rigid polyisocyanurate (PIR) core faced each side with low emissivity foil. Pre-cut to minimise thermabridging at floor and wall junctions, thanks to its unique gasketed lap joint system which... -
Unilin Thin-R Polyiso Strips Insulation PIR Board 1200 x 150 x 25mm
Unilin / Xtratherm Thin-R XT/STR is a CFC/HCFC free, rigid polyisocyanurate (PIR) core faced each side with low emissivity foil. Pre-cut to minimise thermabridging at floor and wall junctions, thanks to its unique gasketed lap joint system which... -
Unilin Thin-R Polyiso Strips Insulation PIR Board 1200 x 200 x 25mm
Unilin / Xtratherm Thin-R XT/STR is a CFC/HCFC free, rigid polyisocyanurate (PIR) core faced each side with low emissivity foil. Pre-cut to minimise thermabridging at floor and wall junctions, thanks to its unique gasketed lap joint system which... -
Unilin Thin-R Polyiso Strips Insulation PIR Board 1200 x 250 x 25mm
Unilin / Xtratherm Thin-R XT/STR is a CFC/HCFC free, rigid polyisocyanurate (PIR) core faced each side with low emissivity foil. Pre-cut to minimise thermabridging at floor and wall junctions, thanks to its unique gasketed lap joint system which... -
Unilin XT Thermal Liner DD Insulation PIR Board 2400 x 1200 x 50.5mm
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... -
Unilin XT Thermal Liner DD Insulation PIR Board 2400 x 1200 x 52.5mm
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... -
Unilin XT Thermal Liner MF Insulation PIR Board 2400 x 1200 x 32.5mm
Unilin / Xtatherm XT Thermal Liner MF Insulation PIR Board is a composite insulated panel of Xtratherm PIR insulation core with a composite foil facing bonded to 12.5mm tapered edge plasterboard for internal walls, sloped roofs and ceilings. XT/TL-MF is... -
Unilin XT Thermal Liner MF Insulation PIR Board 2400 x 1200 x 37.5mm
Unilin / Xtatherm XT Thermal Liner MF Insulation PIR Board is a composite insulated panel of Xtratherm PIR insulation core with a composite foil facing bonded to 12.5mm tapered edge plasterboard for internal walls, sloped roofs and ceilings. XT/TL-MF is... -
Unilin XT Thermal Liner MF Insulation PIR Board 2400 x 1200 x 50.5mm
Unilin / Xtatherm XT Thermal Liner MF Insulation PIR Board is a composite insulated panel of Xtratherm PIR insulation core with a composite foil facing bonded to 12.5mm tapered edge plasterboard for internal walls, sloped roofs and ceilings. XT/TL-MF is... -
Unilin XT Thermal Liner MF Insulation PIR Board 2400 x 1200 x 52.5mm
Unilin / Xtatherm XT Thermal Liner MF Insulation PIR Board is a composite insulated panel of Xtratherm PIR insulation core with a composite foil facing bonded to 12.5mm tapered edge plasterboard for internal walls, sloped roofs and ceilings. XT/TL-MF is... -
Unilin XT Thermal Liner MF Insulation PIR Board 2400 x 1200 x 62.5mm
Unilin / Xtatherm XT Thermal Liner MF Insulation PIR Board is a composite insulated panel of Xtratherm PIR insulation core with a composite foil facing bonded to 12.5mm tapered edge plasterboard for internal walls, sloped roofs and ceilings. XT/TL-MF is... -
Unilin XT Thermal Liner MF Insulation PIR Board 2400 x 1200 x 72.5mm
Unilin / Xtatherm XT Thermal Liner MF Insulation PIR Board is a composite insulated panel of Xtratherm PIR insulation core with a composite foil facing bonded to 12.5mm tapered edge plasterboard for internal walls, sloped roofs and ceilings. XT/TL-MF is... -
Unilin XtroLiner Cavity Wall Insulation PIR Board 1200 x 450 x 100mm
XO/CW is an innovative partial fill cavity wall insulation system incorporating robust facings, engineered jointing details, preformed corners and a certified lambda of 0.021 W/mK. This lower lambda improves U-Values and meets Zero Carbon standards,... -
Unilin XtroLiner Cavity Wall Insulation PIR Board 1200 x 450 x 75mm
XO/CW is an innovative partial fill cavity wall insulation system incorporating robust facings, engineered jointing details, preformed corners and a certified lambda of 0.021 W/mK. This lower lambda improves U-Values and meets Zero Carbon standards,... -
Unilin XtroLiner Cavity Wall Insulation PIR Board 1200 x 450 x 80mm
XO/CW is an innovative partial fill cavity wall insulation system incorporating robust facings, engineered jointing details, preformed corners and a certified lambda of 0.021 W/mK. This lower lambda improves U-Values and meets Zero Carbon standards,... -
Unilin XtroLiner Cavity Wall Insulation PIR Board T&G 1200 x 450 x 100mm
XtroLiner is an innovative partial fill wall cavity insulation system incorporating robust facings and preformed corners. The XO/CW jointing offers a practical on-site solution that results in a more robust continuous layer of insulation, minimising the... -
Unilin XtroLiner Cavity Wall Insulation PIR Board T&G 1200 x 450 x 60mm
XtroLiner is an innovative partial fill wall cavity insulation system incorporating robust facings and preformed corners. The XO/CW jointing offers a practical on-site solution that results in a more robust continuous layer of insulation, minimising the... -
Unilin XtroLiner Cavity Wall Insulation PIR Board T&G 1200 x 450 x 80mm
XtroLiner is an innovative partial fill wall cavity insulation system incorporating robust facings and preformed corners. The XO/CW jointing offers a practical on-site solution that results in a more robust continuous layer of insulation, minimising the... -
Unilin XtroLiner Framing Insulation PIR Board 2400 x 1200 x 100mm
XtroLiner XO/FB is a PIR foamboard which has been specifically developed for use as a thermally efficient insulation board in building constructions. XO/FB is designed for use in a wide range of construction including steel or timber frame applications... -
Unilin XtroLiner Framing Insulation PIR Board 2400 x 1200 x 30mm
XtroLiner XO/FB is a PIR foamboard which has been specifically developed for use as a thermally efficient insulation board in building constructions. XO/FB is designed for use in a wide range of construction including steel or timber frame applications... -
Unilin XtroLiner Framing Insulation PIR Board 2400 x 1200 x 40mm
XtroLiner XO/FB is a PIR foamboard which has been specifically developed for use as a thermally efficient insulation board in building constructions. XO/FB is designed for use in a wide range of construction including steel or timber frame applications... -
Unilin XtroLiner Framing Insulation PIR Board 2400 x 1200 x 50mm
XtroLiner XO/FB is a PIR foamboard which has been specifically developed for use as a thermally efficient insulation board in building constructions. XO/FB is designed for use in a wide range of construction including steel or timber frame applications...
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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How to insulate a shed
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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.



