Unifit 032

Knauf Insulation Unifit 032 – mineral wool for pitched roofs

Knauf Insulation Unifit 032 – mineral wool for pitched roofs, λ 0.032
Unifit 032 is Knauf Insulation’s flagship insulation product – a mineral wool mat using ECOSE® technology, achieving a thermal conductivity coefficient of λD = 0.032 W/mK, which is the lowest lambda value across the entire Knauf mineral wool range. In practice, this means that, for the same insulation thickness, you achieve a higher thermal resistance than with any other mineral wool product in the Knauf range – which is particularly important wherever the space between rafters is limited, and the building’s energy requirements are high.

What is Unifit 032 and what makes it stand out?

Unifit 032 is a mineral wool mat manufactured using ECOSE® technology – a fibre-binding process based exclusively on natural, rapidly renewable raw materials, without the addition of formaldehyde, phenols, acrylics or artificial colourants. ECOSE® technology is 70% less energy-intensive than traditional methods of mineral wool production. The product holds DECLARE certification and an Environmental Product Declaration (EPD), confirming its composition and minimal environmental impact.

What sets Unifit 032 apart from all other Knauf Insulation wool products is its lowest available lambda value – 0.032 W/mK. Combined with the mat’s increased rigidity, a ribbed structure that facilitates installation and special cut-line markings, this results in a product that not only achieves the highest thermal performance but is also convenient and quick to install. The insulation holds securely between the rafters without the need for additional fixings, whilst the precise cutting lines on the roll eliminate the risk of errors when cutting to size.

Where is the Unifit 032 best suited?

Unifit 032 is designed for applications where maximum thermal insulation performance is required – particularly where the thickness of the insulation is limited by the depth of the rafters or by architectural requirements:

• pitched roofs – between and beneath the rafters – standard application, particularly recommended for nZEB and passive buildings, where energy standards are the most stringent,
• floors and ceilings between joists – effective thermal and acoustic insulation in timber ceilings,
• Walls in timber-frame structures – filling the space between structural elements to achieve the best possible thermal performance.

Unifit 032 – benefits appreciated by designers and builders

Unifit 032 is a product for the most demanding customers – combining a record-low lambda value with practical benefits on the building site:

• The lowest lambda value in the Knauf range of wool products – λD = 0.032 W/mK – ensures the highest level of thermal insulation for any thickness,
• Excellent acoustic properties – effective noise reduction in any application,
• Excellent fire resistance (Class A1) – the highest level of fire safety without compromise,
• Increased rigidity – the mat sits securely between the rafters without the need for additional fixings,
• Retains its shape – the wool does not settle or shift throughout the building’s lifetime,
• Markings to aid cutting – the lines on the roll allow for quick and precise alignment with the rafters,
• Easy to install thanks to the interlocking design – a seamless mat that is easy to handle, even in hard-to-reach places,
• Compact packaging – lower transport costs and simpler logistics on site.

Technical specifications

Unifit 032 has a thermal conductivity coefficient of λD = 0.032 W/mK – the lowest value across the entire Knauf Insulation mineral wool range, which directly translates to the highest thermal resistance for any given material thickness. Its reaction to fire class is A1, its thickness tolerance class is T2, and its diffusion resistance factor is 1, which ensures the free exchange of water vapour and eliminates the risk of condensation within the building envelope.

The product is available in a wide range of thicknesses – from 50 mm to 200 mm – with a constant width of 1,200 mm. The thermal resistance R ranges from 1.55 to 6.30 m²K/W, enabling it to meet even the most stringent energy standards, including those for passive houses and nZEB buildings.

Environmental protection and certifications

Unifit 032 has an Environmental Product Declaration (EPD), which documents the product’s environmental impact at every stage of its life cycle – from the sourcing of raw materials to recycling. The DECLARE certificate confirms that the product contains no formaldehyde, flame retardants or fungicides. The product holds a CE certificate of conformity (1020 – CPR – 020036600) and a certificate from the National Institute of Hygiene, guaranteeing health and safety for building occupants.

Why choose the Unifit 032?

Knauf Insulation Unifit 032 is the mineral wool with the highest thermal insulation performance in the Knauf range and simply the best choice wherever maximum thermal efficiency is required. The lowest lambda value of 0.032 W/mK across the entire Knauf range, enhanced rigidity, reinforced structure and availability in thicknesses of up to 200 mm combine to create a product that meets the requirements of even the most ambitious energy-efficient projects. It is an investment in thermal comfort and quiet, which will pay for every zloty spent on insulation for decades to come.

FAQ – Frequently asked questions about Knauf Insulation Unifit 032 wool