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PermaRock is a leading manufacturer and supplier of external wall insulation (insulated cladding) and exterior render systems.

Our accredited systems are suitable for all forms of construction and building types, in the new and existing building markets, having been developed to suit the requirements of the UK market in terms of technical / fire performance and to meet UK Building Regulations.

PermaRock offer a wide range of systems and renders / finishes, enabling the creation of interesting, functional and durable façades.

With an excellent track-record spanning in excess of 30 years, we provide unparalleled levels of support, pro-actively engaging with project design and construction teams, offering significant technical support to ensure the performance achieved by the specified system is of the highest standard.

Fire-Safe Cladding Systems

PermaRock Mineral Fibre Systems are suitable on buildings with floor levels above 18 metres above ground level and assessed to EN13501-1 achieving an A2-s1,d0 classification.

They have been tested to BS 8414 and meet the requirements of BR 135 - ‘Fire performance of external thermal insulation for walls of multistorey buildings’ and also achieve a 'Class O' classification under the Building Regulations Part B for fire-spread across the surface.
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Featured Downloads

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Third party approval
PermaRock’s BRE-Global Certification Certificate (No. 158/12) expands on our existing scope of ex...
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Product catalogue
PermaRend (Render Only) Standard Detail Set - Masonry Walls
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Product catalogue
PermaRend is the leading brand of high impact-resistant, thin-coat, polymer-modified, crack resis...
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PermaRend Exterior Render Systems (Non-Insulated)
Highly impact-resistant, thin-coat, flexible, breathable, crack resistant exterior render system for use on brickwork, blockwork and concrete surfaces.
- M20 Plastered/ Rendered/ Roughcast coatings
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PermaRock EPS-Premium External Wall Insulation Systems
High-performance, lightweight external wall insulation (EWI) system based on low-lambda enhanced expanded polystyrene (EPS) insulating panels.
- M21 Insulation with rendered finish
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PermaRock Exterior Render System (Back-ventilated Render Rainscreen) (Non-Insulated)
External render system for back ventilated, pressure equalised, rainscreen (wall) applications and for application onto suitable mineral render carrier boards (walls and soffits).
- M20 Plastered/ Rendered/ Roughcast coatings, M21 Insulation with rendered finish

Image gallery

1. PermaRock Through Coloured SiliconeUltra Render
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1c PermaRock Through Coloured SiliconeUltra Render
1d PermaRock Through Coloured SiliconeUltra Render
1e PermaRock Through Coloured SiliconeUltra Render
1f PermaRock Through Coloured SiliconeUltra Render

Quality Assurance

PermaRock Products Ltd is certified to the following Quality Assurance schemes/standards:
BSI ISO 14001:2015: 2015 – BSI
BSI ISO 9001: 2015 – BSI
BRE Certificate: 158/12 – BRE Global Certificate 158/12 - PermaRock External Wall Insulation and Render Systems

Trade names


Contact details

Jubilee Drive,
Leicestershire, LE11 5TW
Tel +44 (0)1509 262924
Fax +44 (0)1509 230063

Additional links

The following external links have been provided by the manufacturer: