Product descriptionROCKWOOL Full Fill Cavity Batt is a semi-rigid stone wool insulation batt for the thermal insulation of external masonry cavity walls and for the thermal insulation and acoustic protection of masonry party walls between dwellings. Other than in very severe exposure locations with fair-faced masonry, the NHBC accepts the use of ROCKWOOL Cavity Batt in relation to NHBC Standards, Chapter 6.1, External masonry walls, provided it is installed, used and maintained in accordance with the BBA Certificate. *Subject to application
- Euroclass A1 in accordance with BS EN 13501-1 Reaction to Fire rating
- Thermal conductivity 0.037 W/mK
- BBA approved (Certificate No. 94/3079)
Areas of applicationApplications for the Full Fill Cavity Batt are:
- Thermal insulation of external masonry cavity walls
- Thermal insulation and acoustic protection of masonry party walls between dwellings
Product propertiesName | Value | Test standard | Symbol | Unit
Declared thermal conductivity | 0.037 | EN 12667 | λD | W/mK
Reaction to Fire | A1 | EN 13501-1 | | Euroclass
Long term water absorption | WL(P) | EN 12087 | WL(P) | kg/m²
Short term water absorption | WS | EN 1609 | WS | kg/m²
Product standard | EN 13162:2012+A1:2015 | | |
CE certificate number | 0751-CPR-393.0-01 | | n/a |
Declaration of Performance (DoP) number | UK-WER-0009-02 | | |
BBA certificate number | 94/3079 | | n/a |
KEYMARK certificate number | 003–SDG-5-477232 | | |
Installation Guide (Summary)Before beginning installation, assemble tools such as an insulation saw, tape measure and PPE (personal protective equipment) such as gloves/mask if working in an unventilated area, and eye protection when working overhead. Cover all exposed skin. Carry out a pre-work safety check, identifying any potential hazards such as: ease of access, work heights, trip hazards, electrical safety.
- Step 1: Cut the batts cleanly, using a sharp, long bladed knife and a straight edge. It is essential that cut pieces of batts completely fill the spaces for which they are intended and are adequately secured. Gaps must not be left in the insulation.
- Step 2: Install the batts below the DPC
- Step 3: Positioning the batts
- Step 4: Fixing the batts
- Step 5: Clean off any protruding mortar
- Step 6: Securing the batts
- Step 7: Ensure batts are tightly butted
- Step 8: Top edge must be protected by a cavity tray
- Step 9: Completing corner joints
- Step 10: Multilayering insulation
Technical characteristics / specifications- Product type: Semi-rigid stone wool insulation batt
- Thermal conductivity: 0.037 W/mK
- Reaction to Fire: Euroclass A1 (EN 13501-1)
- BBA Certificate No.: 94/3079
- Product standard: EN 13162:2012+A1:2015
- CE certificate number: 0751-CPR-393.0-01
- DoP number: UK-WER-0009-02
- KEYMARK certificate number: 003–SDG-5-477232
- Long term water absorption: WL(P) (EN 12087)
- Short term water absorption: WS (EN 1609)