Insulated Plasterboard

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Insulated plasterboard is a type of building material that combines plasterboard with insulation to provide an advanced wall-lining system. At Beesley and Fildes, we stock the best high-quality products for you for great prices.

Designed by encasing plaster with paper, insulated plasterboard is a popular choice for walls and ceilings, giving your property a smooth and sleek finish. Made with polyisocyanurate (PIR) or expanded polystyrene (EPS) for thermal resistance, no longer will you have to worry about heat loss in your home or high energy bills. 

Let us take the weight off your shoulders. Our thermal plasterboard is designed for maximum efficiency, with excellent performance and ease of installation. With a range of products to choose from, such as Thermaline Plus, Gyproc, and Eco-liner, we have something to tackle every project. 

Eco-liner can also be applied to pitched roofs for extra thermal insulation and protection. The plasterboard dry lines the walls, making for a quicker installation process as there is no time drying time required. With a range of sizes to choose from, you can customise your walls to fit your personal needs.

Additionally, acoustic insulation makes them sound-proof plasterboards, perfect for fittings in schools, homes, offices, and properties in noisy environments. Browse our plasterboards with insulation products today to find the perfect fit for you, or contact our team of friendly and knowledgeable experts for helpful advice!

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What is thermal insulated plasterboard?

When a standard plasterboard or gypsum board is bonded to a sheet of insulating material, it’s called ‘thermal-insulated plasterboard’. 

This popular construction material comes in varying thicknesses, depending on the user’s insulation needs. Its chief purpose is to increase a property’s energy efficiency through thermal insulation. 

It’s used on internal walls where the insulation is ‘sandwiched’ between two layers of plasterboard and fixed using specialised nails or adhesives. Insulation back plasterboard is a practical, easy-to-install solution for temperature regulation.

By trapping heat, insulated drywall offers extra thermal insulation at a low cost. You could even see a reduction in monthly energy costs by fixing thermaline plasterboards to your property’s most poorly-insulated rooms. 

Wintertime may see you relying less on conventional heating, and during the summer, you can relax in a cooled property. 

It’s even possible to notice this temperature stabilisation on a daily basis, too. Thermal plasterboard prevents drastic fluctuations, meaning you won’t feel the temperature drop when day turns to night. 

Key features of thermal insulated plasterboard

How can thermaline plasterboard be utilised in commercial and residential buildings? 

Insulation properties

Reduce drafts, heat transfer and maintain stable temperatures with thermal plasterboard’s insulating properties. The material is highly suitable for homes, schools, hospitals, and care homes. 

Thermal insulated plasterboard is a wise investment for cutting energy costs. By increasing your home’s energy efficiency, insulated drywall ensures buildings remain warm during colder months and cool during warmer periods.


Insulation backed plasterboard can be constructed using several different materials, each with specific properties. One of the most common components of thermaline plus plasterboard is a mixture of gypsum and paper fibres. 

Gypsum thermal plasterboard is a high–performance material with low thermal conductivity, fire resistance and sound control. Or, you can opt for Polyisocyanurate (PIR) plasterboards for rigid installation, long-term performance and an average R-value of 6.5. 

Fire resistance

Many kinds of thermaline plasterboard are also fire-resistant. Manufacturers incorporate additives like fibreglass into the insulation to give the plasterboard smoke and fire-resistance properties. 

For example, PIR-insulated plasterboard meets European fire resistance standards and UK energy efficiency regulations. 

While it isn’t fireproof, the polyisocyanurate foam can withstand high temperatures and slow the spread of fire. By giving people additional time for evacuation, tenants and property owners can respond quickly in the event of a fire.

Sound insulation 

Thermaline plus plasterboard can enhance the acoustic comfort of a building. 

The soundproofing quality of insulated plasterboard is particularly beneficial in environments like homes, schools, hospitals, and care homes, where controlling sound transmission is crucial for maintaining a stable environment.

But how do manufacturers soundproof their plasterboard? 

Construction techniques and the product's composition can dampen acoustics on both ceilings and walls. By applying thermal insulated plasterboard on walls, you can minimise sound travelling between rooms. 

When installed in a ceiling, it can quieten the footsteps of family members or neighbours walking upstairs. 


How and where can thermal plasterboard be used? 

Residential use 

Insulated drywall is excellent for draft reduction and temperature stabilisation. 

If you’re a homeowner trying to create a more peaceful space, applying thermal plasterboard to the walls and ceilings in your bedroom, living room, or lounge will ensure your property stays at a stable temperature all year round. 

Commercial use

Businesses can cut energy costs by equipping their offices, retail stores and tourist attractions with thermaline plasterboard. By managing thermal conditions, plasterboard keeps a balanced indoor temperature and reduces reliance on heating and cooling systems.

Plasterboard can also make your work environment more productive. Minimising noise transmission will allow your staff more focus to complete their daily tasks. 

Construction projects

Thermal plasterboard is common in the construction industry, employed in new builds and refurbishments to address insulation and drylining. The plasterboard is available in various thicknesses and can be selected based on the project's specific requirements.

Thermaline Plasterboard 

Thermal insulated plasterboard, often called foam-backed or thermal plasterboard, is a multifaceted construction material that combines standard drywall plasterboard pre-bonded to an insulant, such as Phenolic insulation or PIR insulation.

But why is this innovative material celebrated? 

It’s widely used as a cost-effective means for enhancing thermal insulation, regulating indoor temperatures and improving a building's overall energy efficiency by mitigating heat loss or gain.

The popularity of thermal insulated plasterboard can be attributed to its cost-efficiency and straightforward installation process. It’s the preferred choice across various construction contexts and is used in residential and commercial spaces alike. 

It offers customers excellent soundproofing, fire resistance and thermal insulation, all without necessitating a compromise on installation ease or budgetary considerations.


Does thermal plasterboard make a difference? 

Yes, thermal plasterboard makes a big impact where thermal insulation, fire resistance and soundproofing are concerned. 

In the UK’s cold climate, insulated drywall offers homeowners a cost-effective way to stabilise their home’s temperature, keeping it warm through the winter and cool in the summer. 

It can mitigate issues like condensation and humidity indoors and provide commercial spaces, like offices, with a more serene working environment.