90mm Knauf FrameTherm Roll 40 Glass Mineral Wool

90mm Knauf FrameTherm Roll 40 is a glass mineral wool roll designed for timber frame wall insulation fitted between studwork. With thermal conductivity between 0.032 W/mK and 0.040 W/mK, this 90mm insulation roll delivers excellent performance. Non-combustible and rated Euroclass A1 for fire safety, it's manufactured with ECOSE® Technology bio-based binder.

Product specification

• Thickness: 90mm
• Width: 1140mm (2 x 570mm)
• Length: 12500mm
• Roll Coverage: 14.25m2
• Pack Quantity: 2
• Density: 28kg/m3
• Weight/m2: 2.52kg
• Weight: 12.93kg
• Thermal Conductivity: 0.040W/mK
• R-Value: 2.25m2K/W
• Type: 90mm Glass Mineral Woll Insulation
• Application: Timber frame walls, Pitched roofs at rafter level
• Facing: Unfaced
• Roll Type: Ready-cut
• Fire Rating (Reaction to Fire): A1(Non-combustible)

Advantages

• Friction-fitted between timber studs to prevent air movement and infiltration, reducing heat loss effectively.
• Pre-cut rolls available in 2x570mm or 3x380mm widths to suit standard timber stud spacing.
• Mineral wool construction provides superior sound absorption and noise reduction compared to many alternative insulating products.

Application

This 90mm Knauf FrameTherm 40 roll suits external wall insulation and warm pitched roofs in timber frame buildings. Timber frame construction typically provides better thermal performance than equivalent masonry walls. However, the lighter mass of timber frames means insulation materials must deliver enhanced acoustic properties to compensate. This FrameTherm roll friction-fits between studs to minimise heat loss whilst providing acoustic absorption, improving overall wall performance.

Real Performance

Glass and rock mineral wool installs more easily than rigid board alternatives. It adapts to minor substrate variations and interlocks seamlessly, eliminating air gaps. 90mm Mineral wool insulation accommodates substrate irregularities and movement over time, maintaining close contact and thermal performance throughout the building's life. Eliminating air gaps is essential for genuine performance in real-world applications. Insulation that fails to deliver 'as-built' thermal performance undermines its core function and creates unnecessary risk as the construction sector works to close the performance gap.

Info

Browse our full Knauf Insulation range and filter by thickness or coverage on the left. For product suitability advice or quantity discount quotes, contact us on +4402038839057, email sales@insulationbee or use Live Chat - Lowest UK Knauf Mineral Wool Insulation Prices.