Sectors
Specifying External Wall Insulation Systems
Specifying the most suitable external wall insulation system for a project demands careful consideration of a number of key factors. In particular, the choice will be affected by the type, height and purpose of the building, prevailing Building Regulations, performance characteristics and aesthetic requirements.
At Permarock, we offer systems to suit all project types – new build, refurbishment and reclad – and all property designs: high-rise, low-rise, non-traditional and traditional constructions, Passivhaus projects and more.
Whatever your sector – be it housing, education, healthcare, commercial, residential, low-carbon, or public buildings – and whatever the construction type or building height, we have a solution to satisfy your project requirements.
With over 40 years of experience, we add value by delivering exceptional technical service and support. To maximise that value, we prefer to be involved with your scheme from the earliest possible stages of your project.
Contact us today to discuss your next scheme, and explore the following sector links to find out more. To review some initial considerations, click here.
New Build
Retrofit
Help with Specifications
Our technical representatives are on hand to provide expert assistance. We can offer advice on system selection and produce specifications that are precisely tailored to your individual project requirements, as well as providing U-value calculations and detail drawings (standard & bespoke).
Early engagement with Permarock’s design and technical specialists offers many important advantages:
- Active advice in relation to your design and interfaces
- Assistance with project visualisations
- Help with planning consent
- Faster mobilisation and time savings
- Increased accuracy of your design
- Adherence the highest quality standards – maximising durability and reliability
- Achieving maximum value for money
- Compliance with all relevant standards and regulations
Key Considerations
When choosing a system, designers and specifiers must ensure that the following factors and questions are taken into consideration:
- Type of Building/Wall Build-Up: the system type should be chosen to suit the wall construction, type of building, design loads, structural movement, etc.
- Fire Performance: the system should be appropriate for the building use. For high-rise buildings (and other schemes as appropriate) systems should achieve A2-s1,d0 classification in accordance with BS EN 13501-1.
- Thermal Performance: what is the required U-value of the building envelope or SAP rating requirement? Are there limitations to the thickness (zone) of the system that can be accommodated?
- Aesthetics: is the desired type and colour of decorative finish available? Is it suitable for the building’s design and its intended location and exposure? Is the design compatible with local planning requirements?
- Design Life: External Wall Insulation systems have a design life of at least 30 years. Permarock systems can be designed to achieve a design life in excess of 60 years.
- Detailing and Interfaces: full consideration needs to be given to the interface with other materials and how the system is protected at edges, overhangs and abutments.
- Impact Resistance: the decorative finish may be selected primarily for reasons of aesthetics, but the design must also take into consideration the level of impact resistance required.
- Cost: a number of design factors can affect the cost of the system, including the insulation type and thickness, the selection of decorative finishes and the fixing methods.
- Exposure of Site: resistance to wind and impact loads, high/low traffic, local pollutants (e.g. roads/railways) etc. may all need to be considered when selecting the system and finish.
Further Information for Specifiers
Permarock external wall insulation and render systems are listed on NBS Source. Here, you can find all our products and generate specifications for your schemes.
You can also visit our Technical Hub section, where NBS Source and BIM Objects are also listed. Alternatively, Contact Us for more detailed scheme specific advice.
