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Mineral Fibre External Wall Insulation Systems
Permarock Mineral Fibre external wall insulation (EWI) systems are high-performance thermal insulation systems suitable for application onto all building types. These include multi-storey buildings for which the highest levels of fire resistance and non-combustibility are required.
The systems incorporate non-combustible mineral fibre (stonewool) insulation (Euroclass A1 – BS EN 13501-1). They enable the creation of systems with an A2-s1,d0 classification in accordance with BS EN 13501-1.
These are tested and certified for use on high-rise buildings, including those with floor levels above 11 metres above ground level. Certificated Permarock Mineral Fibre EWI systems are available featuring the following decorative finishes:
The resulting systems are all class A2-s1,d0 to BS EN 13501-1.
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Further information about this product
Key Features
- BAW-24-331-S-A-UK – to Masonry (where masonry includes clay and calcium silicate bricks, concrete blocks and natural reconstituted stone blocks) or concrete supporting walls; pre-cast or in-situ concrete (dense, lightweight or no-fines)
- BAW-24-332-S-A-UK to Sheathed Frame Construction
- BAW-25-403-S-A-UK to Structural Timber Frame Construction
- A2-s1,d0 reaction to fire classification (EN 13501-1)
- Incorporates non-combustible mineral fibre (stonewool) insulation (Euroclass A1 – BS EN 13501-1)
- Can be used on buildings of any storey height
- Compliant with BR 135
- SWIGA approved high-rise system
- Adhesively bonded and mechanically anchored for enhanced resistance to wind loading and additional structural stability in fire – all anticipated UK wind load requirements can be met.
- A choice of through-coloured, SiliconeUltra renders, Brick Slip, Brick Effect Render and Dry Dash finishes.
- Low embodied energy
- Thermal conductivity: 0.036 W/mK
- BIM Level 2 compliant
- Ecopoints Score of 0.10 (m2) – Excellent rating
Environmental & Quality Standards
- The system is manufactured and supplied in accordance with BS EN ISO 9001 (Quality Management) and BS EN ISO 14001 (Environmental Management)
- Mineral Fibre insulation is manufactured to EN 13162 and is CFC and HCFC free
- The insulation has zero Ozone Depletion Potential (zero-ODP) and zero global warming potential (zero-GWP)
- A recycling facility for uncontaminated insulation boards is available for site waste
- Ecopoint Rating m² – 0.10: Excellent rating
- Low U-Values are achievable in order to meet or exceed Code for Sustainable Homes, BREEAM and Passivhaus standards, etc.
- Green Guide to Specification A Rating achievable
- Extremely airtight façades can be achieved
Approvals
BAW-24-331-S-A-UK
BAW-24-332-S-A-UK
BAW-25-403-S-A-UK
Market Sectors
Residential, Education, Healthcare, Public Buildings, Commercial
Substrate Types
Masonry, Sheathed Light Gauge Steel Frame & Structured Timber Frame
Building Height (Limitations)
No limit (Dependent on decorative finish type and detail design)
Fire Performance
Class A1 insulation (BS EN 13501-1). Permarock Mineral Fibre systems with Permarock SiliconeUltra K Finish, Permarock Brick Slips, Permarock Brick Effect Render and Permarock Dry Dash are assessed to EN 13501-1 and are classed A2-s1,d0 (50mm – 250mm).
Decorative Render/Finishes
All – SiliconeUltra Renders / Brick Slips / Brick Effect Render / Dry Dash
Insulation Thermal Conductivity (W/mK)
0.036
Insulation Thicknesses
50 – 250 mm (30mm & 40mm board available 0.39 W/mK)
Approvals
BAW-24-331-S-A-UK
BAW-24-332-S-A-UK
BAW-25-403-S-A-UK
Thermal Performance
Systems can be designed to achieve U-values that satisfy or exceed current UK Building Regulation requirements.
Weather Resistance
Provides a weather resistant cladding to new and existing backing walls of brick and block masonry, dense and no-fines concrete and sheathed light gauge steel frame and timber frame constructions. Can be designed for use on buildings in locations where the wind-driven rain exposure classification is ‘very severe’.
Wind Loads
Using a combination of adhesive bonding and mechanical fixing, these systems can be designed to withstand all anticipated wind load (suction) scenarios in the UK.
Impact Resistance
Systems can achieve levels of hard body impact resistance and can be designed for the zones associated with Categories I, II and III as defined in ETAG004.
Fire Performance
Class A1 insulation (BS EN 13501-1). Permarock Mineral Fibre systems with Permarock SiliconeUltra K Finish, Permarock Brick Slips, Permarock Brick Effect Render and Permarock Dry Dash are assessed to EN 13501-1 and are classed A2-s1,d0 (50mm – 250mm).
Water Vapour Permeability
The systems are water vapour permeable. The rate of permeability depends on the system (thickness and decorative finish type) selected.
Design Life
Systems can be considered to have a design working life of at least 30 years. Lifetimes significantly in excess of 30 years can be achieved with proper maintenance and repair.
