External Wall HD Slab
Monodensity ETICS insulation slab.
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Application(s)
- External Wall
- ETICS / EWI
Product description
External Wall HD Slab is a stone wool insulation specifically developed for use in external wall insulation systems where a higher tensile strength is required.
- Euroclass A1 in accordance with BS EN 13501-1 Reaction to Fire rating
- Thermal conductivity 0.038 W/mK (30 – 40mm)
- Thermal conductivity 0.039 W/mK (> 40mm)
- Tensile strength perpendicular to faces ≥ 15 kPa Compressive ≥ 10 kP
Areas of application
External Wall Dual Density Slab is suitable for use on the following construction types:
- External walls
Documentation

EWI System Holders Datasheet
External Wall Dual Density Slab is a dual density stone wool insulation product for external wall insulation systems.

SUIS ROCKWOOL UK
Safe use instruction sheet ROCKWOOL stone wool insulation products

Republic of Ireland Price List
Price List March 2025

UK Price List
Price List March 2025
Product properties
Name | Value | Test standard | Symbol | Unit |
---|---|---|---|---|
Declared thermal conductivity | 0.039 | EN 826 | λD | W/mK |
Reaction to Fire | A1 | EN 13501-1 | Euroclass | |
Long term water absorption | WL(P) | EN 12087 | WL(P) | kg/m² |
Product standard | EN 13162:2012+A1:2015 | |||
Declaration of Performance (DoP) number | UK-WER-0130 | |||
CE certificate number | 0751-CPR-393.0-01 | |||
Facing type, side 1 | No Facing |
Product variants
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