NH3 Rainscreen Subframe System

NH3 is the NVELOPE® subframe system used to support vertical elements.

NH3 is the NVELOPE® horizontal bracket system suited for face fixed narrow vertical panels.

Features

• This product allows horizontal L profiles to be directly inserted into the brackets.
• The bracket is secured to the substrate; either steel frame, block work, or timber. The horizontal slot of the bracket is then ready to receive an L or lipped L rail.
• The L and lipped L rail can be adjusted for line and level and secured using fixed and sliding points positioned to allow for expansion and contraction.
• This system is suitable for face fixed applications.

To access BIM drawings, click here.

NVELOPE® NH3 is the system used to support vertical elements, allowing for varied façade design options. It is also supported by the SFS range of fasteners. NH3 is also included within the Project Builder estimating tool to support project-specific system estimation.

Material

Material selection is an important consideration in the construction of a rainscreen support system. It can affect the thermal performance of the overall rainscreen system, as well as structural performance.

Aluminium

• Aluminium subframe systems for rainscreen are designed in accordance with Eurocodes 3 & 9.
  
• Aluminum is the second most widely used metal after iron and as such has a robust and well defined UK and international supply chain
  
• Its low weight and high strength ratio and simplicity of fabrication either on site or within a manufacturing setting makes it a suitable material with which to create rainscreen subframe systems for cladding applications.
  
• Aluminium offers corrosion resistance, which can be complemented by additional treatment including anodization whilst still maintaining a Euroclass A1 fire rating. Refer to the relevant product documentation for applicable reaction to fire classification.
  
• NVELOPE systems use 6005 T6 alloy, selected for its strength and performance characteristics when compared with other commonly used aluminium alloys.
  

Sustainability

Sustainability requirements are an important consideration in the design of any building. Identifying the appropriate material from a manufacturer with documented supply chain and sourcing information is important for project decision-making. At SFS:

• NVELOPE® rainscreen subframe systems are predominantly made from high-strength 6005A T6 alloy, which in many applications offers higher load performance compared with the more usual 6063 alloys.
• All our 6005 alloy is sourced from extrusions manufactured from low-carbon aluminium, typically producing only 4 kg of carbon per 1 kg of metal.
• Our low-carbon alloy is manufactured from metal which, on average, constitutes 60% pre- and post-consumer scrap.
• SFS NVELOPE provides further details on our carbon footprint in relation to our alloy in our Environmental Product Declaration.
  

Options

• Utilising Project Builder Thermal, SFS can support project-specific assessment of thermal performance and budget requirements. Whether a lower or a higher thermal performance is required our Thermal Solutions range offers the ability to fine tune your project requirements.
• NVELOPE brackets allow for adjustment between the face of the primary support to outer face of vertical profiles.
  
• Green isolators, made from hard polypropylene, are assembled as standard. These isolators are used to support reduced thermal bridging within the calculated design.
  

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