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Wraptite - Portsmouth

The superior performance benefits of the Wraptite external air barrier system from A. Proctor Group have been highlighted in a brand new flagship project to deliver student accommodation in the centre of Portsmouth.

ECE Westworks, the Bristol office of ECE Architecture were appointed to design a new 23 storey, 576 bed, purpose built student accommodation scheme, Portsmouth One on behalf of Crown Student Living. The main contractor on the project is Osborne.

Facades contractor Fabrite engaged Facade Materials Specialist, InOpera Facades to provide guidance and design the support structure behind the Rainscreen Cladding. Providing detailed assessments in accordance with BS EN 10211 and BRE 443 Conventions for U-values, InOpera were able to model the performance benefits offered by the total through wall cladding system incorporating the Wraptite air barrier.

The Wraptite System was installed as an external air barrier and alternative to a traditional standard breather membrane. Wraptite is the only self adhering vapour permeable air barrier certified by the BBA. This approach saves on both the labour and material costs associated with achieving the demands of energy efficiency in buildings.

Stephen Hull, Director of InOpera Facades, commented: “Modelling the intended construction with the use of Wraptite, highlighted the ability to improve airtightness whilst reducing the depth of rainscreen support system and insulation. The use of a standard membrane would have required a greater emphasis on this, therefore increasing the overall component cost of the project. Minor cladding zone increases on a project of this height can have a huge effect.

The Wraptite self-adhesive membrane was applied externally, quickly and easily ensuring a higher quality installation, and a more robust through wall rainscreen cladding system.”

Wraptite -Portsmouth


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Material Properties

Wraptite-SA

Property Test Method Result
Roll Size 1.5 x 50 m
Thickness Calibrated Deadweight Micrometer 0.65 mm
Weight Electronic Weigh Scale 292 g/m2
Application Temperature - Air & Surface Minimum -10 C
Service Temperature -40 to 80 C
Water Penetration - Before Ageing EN 1928:2000 Method A W1 Class
Water Penetration - After Ageing EN 1928:2000 Method A W1 Class
Air Permeance EN 12114 0.01 m3/m2/hr @50Pa
Water Vapour Resistance Sd EN ISO 12572(C) 0.039 m
Water Vapour Transmission BS 3177:1959 893 g/m2/24hr
Peel Adhesion EN 1939 5.01 N/10mm
Tensile Strength - MD EN 12311-1 417 N
Tensile Strength - XD EN 12311-1 252 N
Tear Resistance - MD EN 12310-1 412 N
Tear Resistance - XD EN 12310-1 286 N
Dimensional Stability - MD EN 1107-2 0.3 %
Dimensional Stability - XD EN 1107-2 +0.1 %
Reaction to Fire EN 13501 - 1 B Class
Flexibility at Low Temperature EN 1109 No cracks at -40C

BIM Objects

File Format
A Proctor Group Ltd Steel Frame Wraptite RVT   IFC
A Proctor Group Ltd Steel Frame Wraptite And Facadeshield RVT   IFC
A Proctor Group Ltd Steel Frame Wraptite And Reflectite Tape Over Board Joints RVT   IFC
A Proctor Group Ltd Steel Frame Wraptite And Wraptite Tape Over Board Joints RVT   IFC
A Proctor Group Ltd Steel Frame Wraptite Tape Over Board Joints RVT   IFC
A Proctor Group Ltd Ventilated Timber Frame External Airtight Membrane Wraptite RVT   IFC
A Proctor Group Ltd Ventilated Timber Frame External Membrane Joint Tape Over Board Wraptite Tape RVT   IFC
A Proctor Group Ltd Ventilated Timber Frame External Over Sheathing Joints Taped Wraptite Reflective Tape RVT   IFC
A Proctor Group Ltd Warm Roof Wraptite Slate With Soft Wood Sarking RVT   IFC
A Proctor Group Ltd Warm Roof Wraptite TileWith Ply Sarking RVT   IFC

UK Availability

North East Scotland & Islands
Linda Kay
Regional Sales Manager

07817872980

Ireland
Sam Swindell
Regional Sales Manager

07875656305

Wales, Midlands & South West
Adam Salt
Regional Sales Manager

07817873124

London & South East
Josephine Matchette
Regional Sales Manager

07535450346

East England
Will Jones
Business Development Manager

07974087243

Global Availability

North America
Jeff Dibdin
International Account Manager.

07534436615

South America
Jeff Dibdin
International Account Manager.

07534436615

Europe
Jeff Dibdin
International Account Manager.

07534436615

MENA
Jeff Dibdin
International Account Manager.

07534436615

Asia
Jeff Dibdin
International Account Manager.

07534436615

Australia
Jeff Dibdin
International Account Manager.

07534436615


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