80mm Rockwool Full Fill Cavity Batt Insulation

Delivering over 30 years of proven performance, 80mm Rockwool Full Fill Cavity Batt Insulation stands as the preferred solution for cavity wall thermal insulation across residential and commercial developments, from new builds to renovation projects. This premium stone wool insulation delivers superior moisture resistance and long-lasting thermal performance.

The 80mm Rockwool Full Fill Cavity Batt provides an effective and economical solution for new masonry cavity walls. With BBA certification for full fill cavity wall insulation, it substantially reduces the U-value of external cavity walls featuring masonry construction on both inner and outer faces.

Installation is straightforward thanks to its lightweight composition, and the batts compress easily to fit snugly within cavity walls, accommodating surface irregularities without difficulty.

Product specification

• Model: 80mm Rockwool Full Fill
• Thickness: 80mm
• Width: 455mm
• Length: 1200mm
• Pack Quantity: 8
• Board Coverage: 0.55m2
• Pack Coverage: 4.40m2
• Density: 38kg/m3
• Weight/m2: 1.9kg
• Weight: 8.36kg
• Thermal Conductivity: 0.037W/mK
• R-Value: 2.16m2K/W
• Fire Rating (Reaction to Fire): A1(Non-combustible)
• Application: Full Fill Cavity Wall
• Type: Stone Woll Insulation
• Product standards: BS EN 13162, Keymark, Kitemark
• CE Marking: CE Marked
• BBA Approved: Certificate 94/3079
• Water Repellent: Water Repellent

80mm ROCKWOOL Full Fill insulation naturally resists water absorption, mirroring the stone-based composition from which it is manufactured. The material excels in moisture-prone environments, safeguarding structural integrity and indoor air quality for decades.

Cavity wall insulation

Protecting cavities against exposure is essential for weather protection. Water damage compromises insulation effectiveness, but 80mm Full Fill Cavity Batts deliver outstanding water resistance for new builds, cavity wall insulation and extension projects.

Applications

80mm Rockwool Full Fill cavity wall insulation performs excellently for thermal insulation in external masonry cavity walls and provides both thermal and acoustic benefits in masonry party walls separating residential units.

Approved by the British Board of Agrément (BBA) under Certificate 94/3079, this product is certified for all exposure zones in domestic and non-domestic buildings up to 25m height.

The NHBC (National House Building Council) confirms suitability of 80mm Rockwool Cavity Batt for most applications, with the exception of highly exposed locations with exposed masonry finishes. Installation, use, and maintenance must follow the BBA Certificate guidance as specified in NHBC Standards, Chapter 6.1, External Masonry Walls.

Acoustic Performance

Stone wool's random fibre structure and density effectively absorb sound energy and reduce vibration transmission, delivering substantial noise reduction from external sources when integrated into external walls.

80mm Rockwool Full Fill insulation retains its dimensional stability and thickness across the building's lifespan, guaranteeing reliable acoustic performance year after year.

More Information on 80mm Rockwool Full Fill Insulation

• Manufaturer Link: Rockwool Full Fill
• 80mm Rockwool Full Fill Insulation delivers high-performance thermal protection with flexible installation options.
• Browse our comprehensive Rockwool Insulation range, filtering by thickness or coverage area using the left-hand navigation. For expert advice on product suitability, competitive bulk pricing, or technical queries, contact us on +4402038839057 , email sales@insulationbee or use Live Chat - Best value Rockwool Insulation in the UK.