Unitized curtain walling systems

A unitized curtain walling system typically comprises of items such as framing, cladding units and samples required.

Uniclass2015 - Ss_25_10_20_90 Unitized curtain walling systems
Reference Notes
NBS Code

25-80-15/190 Unitized curtain walling system

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NRM1

2.5.1 External enclosing walls above ground level (default)

Rules of measurement | Cost benchmarks

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Download manufacturer object defintion template

Manufacturer Product Data template

Complete this electronic spreadsheet to ensure that your Unitized curtain walling systems product information meets the requirements of Level 2 BIM. This is important as it will enable your customers to select, specify and use your products within the BIM environment. Once you have completed this template you can host it on your own website or distribute it to your customers. Please note that we do not host completed product data templates within the BIM Toolkit.

2

Requirement

Graphical representation of element, dimensionally inaccurate.

Purpose of information

To provide a visual indication of proposals at a Concept stage identifying key requirements such as access and maintenance zones etc. Information to be suitable for spatial coordination of primary systems / elements.

Plan
Elevation
Model
2D Section

The above illustrations are for Stick curtain walling systems from the NBS section Curtain walling systems. This is indicative of the LOD requirements for Unitized curtain walling systems.

3

Requirement

Visual information to provide developed principles of the design to a greater level of detail. Developed coordination between all professions. Visual development showing coordination for general size and primary relationships between different elements of the construction. Can form a brief for a specialist sub-contractor or fabricator to progress with their technical design, fabrication and installation. This would be expected to include critical dimensional coordination, performance requirements and qualities of finish.

Purpose of information

To provide a visual representation of proposals, confirming brief for technical Design stage supporting full spatial coordination.

Plan
Elevation
Model
2D Section

The above illustrations are for Stick curtain walling systems from the NBS section Curtain walling systems. This is indicative of the LOD requirements for Unitized curtain walling systems.

4

Requirement

Visual information to provide fixed principles of the design supporting procurement. Developed coordination between all professions. Visual representations showing coordination for general size and relationships between different elements of the construction. Graphical representation of system, dimensionally accurate indicating primary performance characteristics. Graphical information represented may alter dependant on visual information to be produced, eg: Scope of work drawings, setting out, floor loading etc Typical / Installation details separately produced linked to model element and adjacent constructions.

Purpose of information

To provide a visual representation of proposals at a Technical Design stage supporting full spatial coordination.

Plan
Elevation
Model
2D Section
2D Detail

The above illustrations are for Stick curtain walling systems from the NBS section Curtain walling systems. This is indicative of the LOD requirements for Unitized curtain walling systems.

5

Requirement

Visual information to provide full information to support construction / installation. Developed coordination between all professions. Visual representations showing final coordination for size and relationships between different elements of the construction. Graphical representation of system, dimensionally accurate indicating primary performance characteristics and sufficient information to support installation. Typical / Installation details separately produced linked to model element and adjacent constructions.

Purpose of information

To be updated during the construction process to reflect the final design, and to provide a future reference to sit alongside the O&M Manuals.

Plan
Elevation
Model
2D Section
2D Detail

The above illustrations are for Stick curtain walling systems from the NBS section Curtain walling systems. This is indicative of the LOD requirements for Unitized curtain walling systems.

Download manufacturer object defintion template

Manufacturer Product Data template

Complete this electronic spreadsheet to ensure that your Unitized curtain walling systems product information meets the requirements of Level 2 BIM. This is important as it will enable your customers to select, specify and use your products within the BIM environment. Once you have completed this template you can host it on your own website or distribute it to your customers. Please note that we do not host completed product data templates within the BIM Toolkit.

2

Provide an outline description of the deliverable.

Name Definition
Description A description of the type of object to detail any design intent.
3

Provide information relevant to the specific performance of the deliverable. Information to specify the completion (cleaning, testing, spares, training...) of the deliverable should also be provided in the associated specification.

Name Definition
Curtain wall system design Design requirements, Standard and Curtain wall selection.
Design and fabrication tolerances Standard, Appearance and fit and Primary support structure design tolerances.
Quality management Required documentation and Timing.
Structural performance Standard, Loads and Deflections and movements.
Thermal movement Standards and Service temperature range.
Fire performance to BS 476 Standard, Surface spread of flame and Fire resistance of cavity barriers.
Fire performance to BS EN 13501 Standard, Fire resistance and Reaction to fire classification.
Water penetration Watertightness and Water leakage requirements.
Avoidance of condensation Interstitial condensation, Risk of interstitial condensation and Notional outdoor psychrometric conditions.
Acoustic performance – sound transmittance Standards, Weighted sound reduction index (Rw) and Weighted standardized level difference (DnTw) (minimum).
Air permeability Permeability class, Peak test pressure and Air exfiltration rate (maximum).
Thermal performance Standards, Method of calculating thermal transmittance (U-value) and Average U-value.
BREEAM requirements Daylight calculations, View out and Ventilation.
Solar energy transmittance (solar factor) Standard, Solar factor, g-value (glazing only) (maximum) and Effective g-value (glazing with shading devices) (maximum).
Solar transmission Standard, Visible light transmission (glazing only) (minimum) and Effective light transmission (glazing with shading devices) (minimum).
Solar reflection of cladding Requirement and Submittals.
Safety performance Finished surfaces in accessible internal and external areas and Thermal stress.
Durability Relevant agents or degradation mechanisms, Primary components and Secondary components.
Structural sealant/ bonded glazing Standards, Certification and Structural sealant/ bonded glazing units.
Openings and accessories in curtain wall systems Standard, Opening lights and Doorsets.
Compliance with performance requirements Requirement, Method and Testing.
Testing of fixings Test standard, Test location and Test criteria.
4

Provide information relevant to the specific child products of the deliverable to allow suitable products from manufacturers to be selected. Information covering the completion and execution of the deliverable and its child products should also be provided.

Name Definition
System manufacturer The System manufacturer of the Unitized curtain walling systems.
Framing - Framing members Products such as Aluminium curtain wall frame sections.
Framing - Fasteners Products such as Curtain wall adjustable support brackets.
Cladding units - Glass units Products such as Annealed glass sheets.
Cladding units - Panels and facings Products such as Aluminium composite material (ACM) panels.
Cladding units - Fasteners Products such as Structural sealant glazing bonding sealants.
Cladding units - Perimeter seals Products such as Curtain wall glazing and panel gaskets.
System accessories Products such as Acrylic adhesive fixing tapes.
5

Provide information relevant to the specific child products of the deliverable to allow for purchasing. Information covering the completion and execution of the deliverable and its child products should also be provided.

Name Definition
System manufacturer The System manufacturer of the Unitized curtain walling systems.
Framing - Framing members Products such as Aluminium curtain wall frame sections.
Framing - Fasteners Products such as Curtain wall adjustable support brackets.
Cladding units - Glass units Products such as Annealed glass sheets.
Cladding units - Panels and facings Products such as Aluminium composite material (ACM) panels.
Cladding units - Fasteners Products such as Structural sealant glazing bonding sealants.
Cladding units - Perimeter seals Products such as Curtain wall glazing and panel gaskets.
System accessories Products such as Acrylic adhesive fixing tapes.
6

Provide the information specific to the installed deliverable that is required for operation and maintenance. Information covering the detailed maintenance should also be provided in the associated PDF manuals.

Name Definition
Asset type An indication of whether the object is fixed or movable.
Manufacturer Email address for the organisation responsible for supplying or manufacturing the object
ModelNumber The product, item or unit number assigned by the manufacturer of the object.
Warranty guarantor (parts) Email address for the organisation responsible for the parts warranty.
Warranty duration (parts) Duration of parts warranty.
Warranty guarantor (labour) Email address for the organisation responsible for the labour warranty.
Warranty duration (labour) Duration of labour warranty.
Warranty duration unit Duration of warranties (typical value is 'years').
Replacement cost An indicative cost for unit replacement.
Expected life The typical service life of the object.
Duration unit Duration of expected life (typical value is 'years')
Warranty description Description of the warranty content and any exclusions.
Nominal length Typically the larger or primary horizontal dimension.
Nominal width Nominal width of product, typically the characteristic or secondary horizontal or characteristic dimension.
Nominal height Typically the vertical or secondary characteristic dimension.
ModelReference The name of the object as used by the manufacturer.
Shape Characteristic shape of product.
Size Characteristic size of product.
Colour Characteristic or primary colour of product.
Finish Characteristic or primary finish of product.
Grade Standard grading which the product corresponds.
Material Characteristic or primary material of product.
Constituents Optional constituent features, parts or finishes.
Features Other important characteristics or features relevant to product specification.
Accessibility performance The accessibility issue(s) which the object satisfies.
Sustainability performance Description of the sustainability issue(s) which the object satisfies
Code performance The code compliance requirement(s) which the object satisfies
Serial number The serial number assigned to an occurrence of a product by the manufacturer (per instance).
Installation date The date that the manufactured item was installed (per instance).
Warranty start date The date on which the warranty commences.
Tag number The tag number assigned to an occurrence of a product by the occupier (per instance).
Bar code The identity of the bar code (or rfid) given to an occurrence of the product (per instance).
Asset identifier The identification assigned to an asset that enables its differentiation from other assets.