Aluminium Rainscreen System R-MER SHIELD
for commercial, residential, industrial Market-leading ma high-quality roofing envelope systems
Working in partnership with Surveyors, Architects and Facilities Managers, we deliver robust, proactive & long-term waterproofing solutions for all roofing and building envelope assets. For over 20 years, our dedicated Technical Managers have developed partnerships with schools, NHS trusts, councils and private companies across the UK, as a single point of contact to each customer.
What we offer
New build, refurbishment and preventive maintenance solutions
Complimentary roof and cladding survey and condition reports
Dedicated Technical Manager throughout your project
Metal, modified bitumen, liquid coatings, green, and PV systems
garlanduk.com
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nufacturer of g and building
and public sectors.
Single-Point Guarantees for complete building envelope protection
Bespoke specifications and detail drawings
Government grant and Funding application support
Cloud-based roof asset management services
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R-MER Shield is an up to A1 fire classified rainscreen solution designed to meet regulatory standards for ventilated facades. It supports the creation of thermally efficient, code-compliant building envelopes, while providing flexibility in achieving a contemporary aesthetic. The system combines aluminium profiles with a Hilti-engineered substructure, enabling consistent detailing and design freedom across elevations. The modular nature of the system supports efficient installation workflows and alignment with modern construction programmes. R-MER Shield is lightweight, non-combustible, and designed for long-term durability and low maintenance, making it suitable for a wide range of commercial and public sector applications. R-MER Shield The rainscreen system for modern building envelopes
Why choose R-MER Shield?
Low maintenance
Fast installation Lightweight 50% - 75% recycled content
Flexible design
Weatherproof
100% recyclable Improve thermal performance
Fire classification up to A1 rated
R-MER Shield System Credentials
garlanduk.com
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Applications Versatile applications that maximises creative potential
R-MER Shield opens up a world of possibilities to architects, designers and building owners. The Hilti subframe system is adaptable to numerous substrates, including steel frame and masonry, making it the ideal solution for both new build and facade replacement projects. Our Technical Managers are experts in specifying all R-MER metal systems. They work to tailor a solution that will resolve any design or waterproofing challenges, all within a clearly defined budget and timescale.
Versatile R-MER Shield Solutions
BB93 compliance for schools and facilities Replacement of unsafe cladding New build construction
Commercial, residential and public sector Facade refurbishment Valued engineering
Endless Application Opportunities
Fast installation
Reduces thermal bridging
Supports heavy loads Total design freedom
30 year Single-Point Guarantee Fire Classification up to A1 rated
Improved U-Value
garlanduk.com
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Supported and Tested
NyRock ® non-combustible insulation Achieve Passivhaus requirements achievable Complete technical and design support
Reduced fixings and penetrations Optimised for suboptimal substrate
New Build Construction
For new build construction, the R-MER Shield delivers contemporary aesthetics, tested performance, and long-term functionality to support high- spec building envelopes. Designed for efficient installation via the Hilti facade mounting platform, the system helps reduce build time while enhancing thermal performance and architectural impact.
Refurbishment & Cladding Replacement
R-MER Shield achieves up to A1 fire classification, making it the ideal system to replace any failed facade or combustible cladding that no longer meets Approved Document B building regulations or current fire classification standards. Perfectly suited for replacement cladding projects, the Hilti S2S (Slab to Slab) system fixes directly to the existing concrete floor slabs, minimising disruption to the building occupants.
Thermal Performance Upgrades
R-MER Shield can significantly improve the thermal performance of a building. The inclusion of NyRock ® stone wool insulation provides maximum thermal performance from minimal insulation thickness. This reduces wall to panel distances, increasing rentable and useable space inside the building. The integration of the ventilated void within R-MER Shield prevents heat loss in the winter and heat gain in the summer. This enhances the overall energy efficiency of the building and aligns seamlessly with sustainable construction practices.
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Profiles High-Performance Rainscreen Profiles for Maximum Design Flexibility
The R-MER Shield ventilated facade system is designed to provide superior protection, durability, and aesthetic versatility. Featuring three distinct rainscreen profiles; Hook-On, Plank and Cassette. R-MER Shield delivers outstanding performance whilst allowing architects and designers the freedom to create striking, contemporary building envelopes. Each system is CWCT-tested, ensuring compliance with industry-leading standards for weather resistance, impact performance, and long-term structural integrity.
R-MER Shield Profiles:
Hook-On (HK)
Features large-format flat panels with a concealed secret fixing system and hook-on mechanism, ideal for achieving clean, modern facades in commercial and high-rise developments.
Plank (PL)
Pressed plank-style panels with interlocking joints, available in both horizontal and vertical layouts. A flexible and cost-effective solution for linear facade designs.
Cassette (CS)
Folded panels with concealed fixings and robust structural performance. Suitable for fascia, soffits, and large-format applications where uniformity is key.
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Hook-On (HK)
Garland UK’s Hook-On Rainscreen System is a fully drained, back ventilated cladding system which forms the external aesthetic element of a multi-layer construction wall. Panels are manufactured from a multitude of materials and thicknesses (from 1.5mm to 4.0mm) are mounted to the Hilti factory finished support rails on site, providing the end user with a perfect secret fix rainscreen system.
Concealed fixings for a clean, modern appearance. Quick and efficient installation via a robust hook-on mechanism. Flexible panel sizing, ideal for creating bold architectural statements. CWCT-tested for high wind load resistance and impact durability.
Easy panel replacement, allowing for cost-effective maintenance over time.
The Hook-On HK profile system is designed for maximum design flexibility, offering large, flat panels. Ideal for commercial and high-rise applications, this system combines visual appeal with robust engineering for superior performance.
garlanduk.com
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Plank (PL)
Garland UK’s Wallplank Rainscreen System features pressed metal planks with interlocking male/female joints, available in recessed or hairline finishes. Designed for small modules in portrait or landscape, panels (1.0–3.0mm thick) are secretly fixed to Hilti support rails and offer greater design flexibility than traditional rolled systems.
Plank-style panels create a distinctive, linear facade. Available in multiple widths for added design flexibility. Fast installation, reducing on-site labor costs. Resilient in extreme weather conditions, backed by CWCT testing.
Minimal maintenance requirements, ensuring long-term cost efficiency.
The Plank system delivers a sleek, linear facade with horizontal or vertical emphasis. Ideal for design-led projects, it offers long-term durability and modern aesthetics.
garlanduk.com
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Cassette (CS)
Garland Uk’s Cassette Rainscreen System was developed as an economical alternative to the secret fix hook-on system. This system is also suitable for shaped panels such as Fascia/Soffit panels. Panels manufactured from a multitude of materials and thicknesses (from 1.5mm to 4.0mm)
Interlocking cassette system provides a secure, weathertight facade. Customisable panel depths and widths for tailored designs. Strong structural integrity, ideal for exposed locations with high wind loads. Secret fix system for a sleek finish that avoids unnecessary penetrations. CWCT-certified for superior weather and impact resistance.
The Cassette system creates a bold, uniform façade with its folded design, enhancing both aesthetics and structural strength. Ideal for medium-to-large format panels, it’s widely used across commercial and industrial projects, offering clean lines, concealed fixings, and robust weather resistance.
garlanduk.com
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Materials, Colours & Finishes High-quality finishes for impressive facades
For long-lasting colour retention, R-MER Shield is finished with a Polyester Powder Coating (PPC), providing both exceptional durability and extensive design flexibility. This finish ensures that your building's facade not only withstands environmental challenges but also achieves the desired aesthetic appeal.
Enhanced Durability: The cured coating forms a protective layer that offers strong resistance to abrasion, corrosion, and weathering, ensuring longevity and reduced maintenance. Colour and Gloss Retention: PPC maintains its color vibrancy and gloss over time, even under prolonged exposure to UV rays and harsh environmental conditions. Environmental Considerations: The powder coating process emits minimal volatile organic compounds (VOCs), making it an environmentally friendly choice.
garlanduk.com
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Unlimited Colour Possibilities
From precision colour matching to a broad spectrum of standardised colour ways, R-MER Shield gives specifiers the freedom to achieve exact visual requirements without compromising on durability or compliance.
Standard RAL Colours: A comprehensive palette of standardised colours ensures consistency and ease of specification. Custom Colours: Tailored hues can be developed to match corporate identities or unique architectural themes. Special Effects and Textures: Beyond solid colours, PPC allows for finishes that mimic materials like metallics or offer tactile textures, adding depth and character to the facade.
Proven Performance
The R-MER Shield's PPC finish has been subjected to rigorous testing to confirm its performance:
Fire Safety: Achieved BS EN 13501-1 Class A2 certification when manufactured from powder-coated aluminum, ensuring compliance with stringent fire safety regulations.
garlanduk.com
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ROCKWOOL Stone wool Insulation High-performance non-combustible insulation for rainscreen systems
NyRock® RainScreen 032
R-MER Shield includes NyRock ® RainScreen 032 stone wool insulation, specifically designed for ventilated cladding systems. NyRock ® RainScreen 032 boasts a unique fibre structure, created through patented technology, that maximises the density of air pockets within each slab. This innovative design results in significantly improved thermal performance when compared to conventional stone wool products. Once integrated into your construction project, NyRock ® RainScreen 032 offers resistance to rain ingress thanks to its high density and a factory-applied water-repellent agent. Its adaptability shines through during installation – easily fitting around brackets and other intricate details. When tightly butted, adjacent slabs seamlessly interlock, forming a continuous insulating layer. This eliminates heat losses caused by gaps, ensuring an uninterrupted thermal barrier.
NyRock ® RainScreen Slab 032 provides a low lambda, non-combustible insulation solution that offers unparalleled performance.
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Performance and benefits
Thermal performance: Thermal conductivity = 0.032 W/m 2 K
Fire performance: Rated Euroclass up to A1 when assessed to EN 13501-1 Condensation control: A vapour resistivity of 5.9MNs/gm reduces the risk of condensation Recyclable: 20–26% recycled content (UK, ISO 14021) Water resistance: The fibre orientation combined with the use of water-repellent additives repels water
Acoustic performance: Reduces the transfer of airborne noise by as much as Rw 60dB BBA approved: Certified for UK compliance under BBA 22/6417 Dimensional stability: DS 70/90 – <1% dimensional change at 70°C/90% RH (EN 1604)
U-Values*
NyRock ® RainScreen 032 between Hilti facade mounting system on 150mm reinforced concrete (plasterboard on dabs).
NyRock RainScreen 032 (mm)
U-Value (W/m 2 K)
110 115 120 125 130 135 145 150 160 170 180 190 200 215 230 245
0.30 0.29 0.28 0.27 0.26 0.25 0.24 0.23 0.22 0.21 0.20 0.19 0.18 0.17 0.16 0.15
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Single-Point Guarantee
30 year guarantee that covers everything from the system performance, to the quality installation and after-care.
Total Building Envelope Confidence
When it comes to protecting the critical junction between roof and facade*, the R-MER Shield system sets an industry benchmark. Backed by a trusted 30 year Single-Point Guarantee, it provides end-to-end coverage that includes the Hilti substructure, fasteners, insulation, and metal profiles, offering specifiers, contractors, and building owners unrivalled peace of mind. What makes our guarantee stand out is not just the duration, but the scope and assurance it delivers. Unlike traditional warranties that split responsibility across manufacturers and installers, often resulting in disputes and delays, Garland UK accepts full liability for the design, materials, and installation quality through our network of Approved Contractors.
Features:
Design, system and installation liability covered Garland UK take 100% ownership any issues A quick and straightforward process to repair if a fault arises
Up to 30 years of coverage Complete peace of mind
*only with a Garland UK roof
garlanduk.com
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PartnerCare Partners For the Life of Your Building We’re roofing experts, helping specifiers with technical expertise in all aspects of roofing and the building envelope, but principally via the support and guidance our Technical Managers offer within our PartnerCare programme. By focusing on delivering outstanding practical support alongside manufacturing the widest range of systems in the industry, we can provide unbiased product guidance, design out risk, manage project delivery, and leverage our technical team's unique expertise. We are the only roofing and building envelope systems manufacturer in the UK to embed an ‘always on’ roofing expert into your organisation as a commitment to partnering with you for the life of your building.
Industry Leading Service
We commit: Too providing 24/7 access to your dedicated Technical Manager, for the entire relationship, not just per project. We provide: Best-in-class Single-Point Guarantee, up to 30 years of protection covering the system, workmanship, installation, and after-care.
We promise: To provide impartial system advice, backed by one of the industry’s most diverse waterproofing ranges. We will give: Full client access from day one via our RAMP (Roof Asset Management Programme) software, your one-stop shop for all project documentation and history.
garlanduk.com
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Sustainability The sustainable and modern building facade
At a time when sustainable design and architecture are playing an increasingly important role in the built environment, we believe in providing clear and transparent information on all of our systems to ensure specifiers can make informed design decisions for their projects. R-MER Shield profiles are 100% recyclable and can help to reduce the operational carbon of a building, providing an environmentally friendly and energy-efficient facade option whilst maintaining creative freedom.
Longevity
R-MER Shield allows for efficient disassembly, where the modular design of the system can be easily separated and dismantled, to help facilitate end of life processing. Design for Disassembly
R-MER Shield profiles are constructed from highly durable aluminium. It can withstand harsh weather conditions and resist corrosion, making it a long-term option for building facades.
Energy efficiency
Recyclability
R-MER Shield provides an air gap between the aluminium profile and the building structure which helps to regulate the internal temperature throughout the year; assisting with the reduction of a building's operational carbon.
R50 (50% recycled aluminium): 2.9 kg CO 2 e/kg. R75 (75% recycled aluminium): 2.3 kg CO 2 e/kg. It can be reused indefinitely without impacting the performance. This makes it a highly sustainable option that reduces waste and conserves resources.
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garlanduk.com
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Facade mounting system for fast, reliable and simple installation In partnership with Hilti
Garland UK has partnered with market-leading envelope substructure manufacturer, Hilti, to deliver trusted technical support and quality facade mounting systems for the R-MER Shield range. Garland UK and Hilti share the same values to uphold high quality standards and develop long-term relationships with our customers. Our aligned technical support and design services will ensure R-MER Shield meets and exceeds customer expectations.
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Hilti Ventilated Facade Systems A modern approach to building design
A ventilated facade incorporates an air gap between the insulation and the facade profile. This gap is continuous with an opening at the top and bottom creating a natural ventilation of the system. Opting for a ventilated facade in the building design allows for a holistic approach to meet rigorous criteria such as thermal performance, durability, fire protection, soundproofing, and environmental considerations. Reducing long-term cost factors, such as construction costs, energy costs and maintenance costs, are additional benefits of opting for a ventilated facade system when compared with other traditional facade systems. Ventilated facade systems provide the optimal solution for the exterior envelope of a building, applicable not only to new construction but also in renovation projects.
Benefits of ventilated facades
Adaptable substructure for complex surfaces Regulate building temperature Improved soundproofing and noise absorption
Natural lightning condutor Reduce operational carbon
100% recyclable Low maintenance
garlanduk.com
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Slab to slab solutions
The Hilti MFT-S2S bracket is the perfect choice to replace facades which no longer conform to current fire safety regulations. It is also ideal for the installation of a new rainscreen system to existing buildings with insufficient substrate fixing points. This gives building owners the opportunity to improve the aesthetic and thermal performance of their buildings no matter the type of existing wall structure.
Perfect for building where there are insufficient fixing points in between structural slabs Pre-assembled isolator separating the structure material and reducing the thermal bridge Only one support bracket per profile needed Profiles up to 4m length fixed in only one support bracket Support bracket will be fixed only in the slab or the steel beam Low installation time needed, saving labour costs Invisible fixing
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Hilti Fox Brackets Complete range of rainscreen brackets to suit all projects
As the largest component of a free-standing building, the facade can significantly define the energy efficiency of a building. With ventilated facades, the metal subframe can account for up to 50% of a building’s heat loss due to thermal bridging. Hilti provide a range of high-performance fixing brackets designed to minimise the effects of thermal bridging and heat loss.
FOX VI
MFT-VSI
Aluminium
Stainless steel
FOX VT
Horizontal
Thermal bridge-free
Vertical profile instalation
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Thermal Performance
Achieve low U-value targets
R-MER Shield offers varying levels of thermal performance whilst ensuring complete design freedom. The Hilti brackets are available in a wide range of sizes and designs to allow for the optimal insulation thickness to achieve required U-values.
Thermal efficiency comparison example
Example Calculation*
FOX VI (aluminium)
MFT-VSI (stainless)
FOX VT (thermal bridge-free)
Wall thickness: Insulation: Wind zone: Reference area:
250mm concrete 200mm rigid mineral wool
1 66m2
Speeds up on-site installation, helping reduce time, labour, and overall project costs.
Minimises thermal bridging, ideal for achieving energy
Enables reduced insulation thickness, increasing
efficiency in low-energy buildings.
*Please note that depending on project requirements, the U-value levels in this example can be reached by any combination of our substructure systems, for example, by specifying thicker insulation or a different base material.
internal space and lowering energy bills. Passivhaus certified.
U-value incl. substructure
0.2320 [W/m2K]
0.1857 [W/m2K]
0.1693 [W/m2K]
Fulfils new build requirements 0.18 W/(m2K) Fulfils Passivhaus requirements Buildings other that dwellings per Part L Fulfils new and replacement elements 0.26 W/(m2K)
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R-MER Shield R-MER Shield is a multi-layered system consisting of the Hilti extruded aluminium subframe, non-combustible insulation and the R-MER Shield rainscreen profile.
1
3
5
2
7
6
4
L Profiles
T Profiles
for intermediate fixing points
for profile joint fixing points
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Hilti components
Garland UK components
Brackets
R-MER Shield profile
1
5
Extensive range of horizontal and vertical brackets to suit all profile types and thermal requirements.
Aluminium profiles are available in a wide range of dimensions with optional shadow gap for complete aesthetic flexibility.
Bracket fasteners
Insulation
2
6
Fixings for various applications, from screw- fastening to SFS or anchoring into masonry or concrete.
Non-combustible rigid mineral wool insulation available in a wide range of thicknesses to suit thermal requirements.
Support rails
Insulation fasteners
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7
L or T rails with a range of screws to suit your metal profile design.
Insulation fasteners with reinforced plastic sleeve allowing fast and trouble-free installation.
Profile fasteners
4
Stainless steel A2 fasteners.
Additional components
Perforated flashing
Concrete/masonry fastener
Support rail fastener
L profile connector
T profile connector
Bracket extender
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Technical Support Garland UK & Hilti - a single-source design solution
Our combined technical services provide you with the necessary documentation to support your project. These include thermal and structural calculations, design layout, fixing arrangements and fire safety guidance. Every project is bespoke, and we’re here to make sure that you receive the highest levels of care and attention. Your Garland Technical Manager will collaborate directly with the Hilti building envelope experts to ensure quality assurance from design to project completion.
garlanduk.com
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Garland UK & Hilti Design Pack
With our single-source solution, you'll have everything you need to deliver your R-MER Shield project successfully.
The Garland UK & Hilti Design Pack includes:
Installation drawings Complete ventilated facade elevation installation drawings showing relevant standard construction details.
Cut profile optimisation Practical instructions that will optimise the profile-cutting process and minimise any unnecessary materials waste or cost expenditure.
Product Approvals
A complete suite of documented approvals for all Hilti and Garland UK components, including profiles, anchors, and fasteners.
Structural design reports Utilising the Hilti PROFIS facade design software, anchor and baseplate calculations are combined to provide compliant structural design drawings and documentation.
System drawings
U-value calculations
Standard design details for the complete R-MER Shield system, suitable for use in project documentation or BIM/ CAD libraries.
A thorough analysis of the thermal performance and heat transfer coefficient U (W/m2K) of R-MER Shield.
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Fire Performance Meeting fire regulations with R-MER Shield
Approved Document B explains how to fulfil the requirements for fire safety in the Building Regulations. The 2019 update banned combustible materials in or on external walls of the newly defined 'Relevant Buildings'
Relevant Buildings
This is any building that is 18 meters above ground level and contains one or more dwellings, an institution, or a room for residential purposes. In fact, for all intents and purposes, no residential building above 11 metres from ground level can now use any combustible materials in or on external walls. R-MER Shield meets the relevant requirements of the current Part B building regulations and can be used unrestricted and is therefore suitable to use on Relevant Buildings. R-MER Shield uses A1 fire classified insulation and and can provide profiles of up to A1 certified to BS EN 13501-1 standard.
garlanduk.com
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Proven Performance with CWCT Testing
Independently Certified for Ultimate Protection
At Garland UK, we believe that performance should never be left to chance. That’s why our R-MER Shield ventilated facade system has undergone rigorous testing in accordance with the Centre for Window and Cladding Technology (CWCT) standards. This independent certification ensures that our systems deliver exceptional durability, weather resistance, and structural integrity, giving you complete confidence in their real-world performance. With R-MER Shield, you don’t just get a ventilated facade system, you get proven protection, backed by independent verification.
What is CWCT Testing?
CWCT testing is an industry-recognised benchmark for assessing the performance of building envelopes against the elements. It evaluates how well a facade system withstands: Air Permeability: Resistance to air infiltration to improve energy efficiency.
Wind Load Resistance: Withstands high wind pressures without compromising strength. Impact Performance: Resistance to physical impact, ensuring long-term durability and safety.
Water Tightness: Protection against rain penetration under static and dynamic conditions.
Why CWCT Certification Matters
Verified Performance: Independent assurance that your facade system meets the highest standards. Regulatory Compliance: Meets industry best practices for safety, durability, and environmental exposure.
Reduced Risk: CWCT testing ensures your building envelope is protected against weather-related failures. Long-Term Value: A tested and certified system means lower maintenance costs and enhanced lifecycle performance.
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Contact your local expert today.
contact@garlanduk.com
01174 401050
Our Technical Managers are on hand to assist and provide technical advice on your building envelope and roofing systems.
garlanduk.com
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