The requirements for each façade and cladding system are always different and depend on factors such as local wind loads, height of the façade, substrate being fixed to, selected cladding material and the cladding zone. All NVELOPE cladding systems can be engineered to project specific requirements.
Unlock your cladding scheme by completing and submitting the NVELOPE project builder (ideally accompanied with elevation and plan AutoCAD drawings) indicating your proposed cladding requirements. This will allow us to prepare a project specific NVELOPE cladding solution that includes indicative M2 rates, static calculations and setting out information for the support system.
A static calculation assesses dynamic forces e.g. wind load and dead loads (weight of the cladding) under project circumstances. In engineering, static systems do not move or change state – therefore a static calculation ensures that under a given set of circumstances the system (mix of brackets and components) will not move and it will support the load that it's intended to support.
NVELOPE Rainscreen Cladding bracket support systems and associated fixings have been designed in accordance with the new Eurocode 9 (EC9) and are implemented to National Annex BS EN1999.
Some of the aims and benefits of the Eurocode are to:
The EC9 provides common structural design rules, so meeting the compliance requirements of the EU. Plus Eurocodes have been recognised as the leading structural codes. Their flexibility enables use internationally, as evidenced by their adoption by several countries outside Europe. The Eurocode 9 (BS EN 1999-1-1 : 2007+A1 : 2009) applies to the design of structural works in aluminium and complies with the principles and requirements for the resistance, durability, serviceability and safety of aluminium structures.
Project Builder’s latest powerful offering combines together the knowledge of powerful industry thermal software solutions to offer fast and easy project specific thermal calculations.
Use Project Builder’s easy online form to submit your project information and based on the project specific calculations our technicians are able to generate project specific 3D thermal modelling to calculate each bracket’s pointloss value. Each change in the project build-up, whether a substrate, insulation thickness or type change requires a new bracket pointloss calculation.
Project Builder has simplified this process and now offers this powerful feature as standard.
Our 3D thermal reporting calculations cannot be used with third party brackets. The calculations require 3D thermal modelling and any variance in the material, size or design will require new calculations. The pointloss chi calculated is exclusively for and only available for NVELOPE and EKO brackets. We do not offer this service for competitor brackets.
Peace of mind. We’re using industry respected ‘HEAT3’ for 3D thermal pointloss modelling. The BR443 report produced by the Project Builder's Thermal calculation software is created by replicating your project’s wall build-up in both 'HEAT3' and 'Project Builder'.
The U-Value is the heat loss through an Element, e.g. a wall.
The U-value of the plane elements, necessary for the calculation of the overall loss from the building.
Corrections need to be made for any thermal bridging, fixings & bracketry. This includes linear heat loss should the rail penetrate the insulation layer.
The Chi value is the heat loss at (for example) a bracket and is measured as W/mK.
Either a default correction is used or a 3D calculation is carried out. Default bracket corrections can be wildly out with a nominal 0.02W/mK being used and then some bracket point loss figures being >0.05W/mK once calculated (not good) – potentially a huge difference in the thermal world.