Full Fill Cavity Batt
In use for over 30 years, ROCKWOOL® Full Fill Cavity Batt provides a proven cavity wall insulation solution for new builds or extensions in residential and commercial developments.
Lightweight and easy to handle, installation is efficient and provides a close fit against brick and blockwork, whilst also adapting to imperfections in the cavity wall.
Specification
NBS Clause | Length (mm) | Width (mm) | *Approved thickness range (mm) |
F30 – 130 | 1200 | 455 | 50 – 250 |
*Thickness options may be subject to a minimum production volume. Speak to the specification team for guidance.
Standards and Certification
Product standards | BS EN 13162, Keymark, Kitemark |
CE Marking | CE Marked |
BBA Approved | Certificate 94/3079 |
Approved Document E, Section 2 – Separating walls and associated flanking constructions for new buildings | Meets criteria |
Technical Properties
Reaction to fire (Euroclass) | Euroclass A1 (BS EN 13501-1) |
Thermal conductivity | 0.037 W/mK |
Water Repellent | Water Repellent |
Thermal Performance
Application performance - Full Fill application
102mm Facing brick outer skin, ROCKWOOL Full Fill Cavity Batt, 100mm internal concrete block (various densities) Internal finishes: light plaster or plasterboard on dab.
Dense (1.130 W/mK) | Medium dense (0.470 W/mK) | Aircrete standard (0.15 W/mK) | |
Full fill cavity thickness (mm) | U-value (W/m2K) | U-value (W/m2K) | U-value (W/m2K) |
100 | 0.30 | 0.29 | 0.27 |
150 | 0.22 | 0.21 | 0.20 |
CAD Drawings
Download CAD Drawings here