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Appraisal number: 510 (2019)

Date issued: None

Caviteclad Exterior Insulation and Finishing System

Description

Caviteclad Exterior Insulation and Finishing System (EIFS) is a cavity-based external wall cladding system for residential and light commercial type buildings where domestic construction techniques are used.

The system consists of either 50mm (Caviteclad) or 75mm (Thermashell) expanded polystyrene (EPS) sheets fixed over polystyrene battens to form a cavity. The coating system consists of a 3-4 mm thickness of fibreglass mesh reinforced base coat plaster, followed by the application of 1-2 mm thick finishing plaster, which is then finished with an exterior paint system.

The system incorporates a primary and secondary means of weather resistance (first and second line of defence) against water penetration by separating the cladding from the external wall framing with a nominal 20 mm drained cavity.

Scope

Caviteclad has been appraised as an external wall cladding system for buildings within the following scope:

  • The scope limitations of NZBC Acceptable Solution E2/AS1 paragraph 1.1.
  • Constructed with timber framing complying with the NZBC.
  • With a risk score of 0-20 calculated in accordance with NZBC Acceptable Solution E2/ AS1 Table 2.
  • Situated in NZS 3604 wind zones up to and including extra high.

Caviteclad has also been appraised for weathertightness and structural wind loading when used as an external wall cladding system for buildings within the following scope:

  • The scope limitations of NZBC Acceptable Solution E2/AS1 paragraph 1.1 with regards to building height and floor plan area.
  • Constructed with timber and steel framing complying with the NZBC.
  • Situated in specific design wind pressures up to a maximum design differential ultimate limit state (ULS) of 2.5 kPa.

Caviteclad must only be installed on vertical surfaces except for tops of parapets, sills and balustrades, which must have a minimum 10° slope and be waterproofed in accordance with the technical literature.

The system has been appraised for use with aluminium window and door joinery that is installed with vertical jambs and horizontal heads and sills. (The Appraisal of Caviteclad relies on the joinery meeting the requirements of NZS 4211 for the relevant wind zone or wind pressure.)

Installation of components and accessories supplied by Specialized Construction Products Ltd, its certified distributors and certified plasterers must be carried out only by Specialized Construction Products Ltd certified plasterers.

Technical literature

  • Caviteclad Installation Guide, February 2006
  • Caviteclad Specification, August 2018

Caviteclad details as listed below:

Caviteclad 50mm EIFS Exterior Wall Cladding System

EPS 50 - BASE AND EDGE DETAILS

  • 07b Timber Sub Floor 28/11/2013
  • 07a Timber Floor Framing 28/11/2013
  • 06e Rebated Concrete Slab (Sealed at Base) 28/11/2013
  • 06b Rebated Concrete Slab (Open at Base) 28/11/2013
  • 06c Concrete Slab (Below Ground) 28/11/2013
  • 06d Concrete Slab (High Back U Channel) 28/11/2013
  • 06a Concrete Slab 28/11/2013

EPS 50 - EXTERNAL CORNER JUNCTIONS

  • 04j External Corner Schist 20/09/2012
  • 04e External Corner Rounded 28/11/2013
  • 04e External Corner Metal Profile (Double Up??) 28/11/2013
  • 04g External Corner Bevel-back Weatherboards 28/11/2013
  • 04k External Corner Artificial Schist 28/11/2013
  • 04d External Corner 28/11/2013
  • 04h External Corner Rusticated Weatherboard 28/11/2013
  • 04f External Corner Brick 28/11/2013

EPS 50 - HORIZONTAL CONTROL JOINTS

  • 23a Inter-storey Flashing 28/11/2013
  • 18e Horizontal Lap Joint Above Brick 28/11/2013
  • 18b Horizontal Joint Profiled Metal 28/11/2013
  • 18a Horizontal Joint Bevel-back Weatherboard 28/11/2013
  • 18f Horizontal Joint Above Schist 28/11/2013
  • 18d Horizontal Joint Above Brick Sill 20/09/2012
  • 18c Horizontal Joint Above Brick 28/11/2013
  • 18g Horizontal Joint Above Artificial Schist 28/11/2013
  • 18a Horizontal Control Joints 20/09/2012

EPS 50 - INTERNAL CORNER JUNCTIONS

  • 05g Internal Corner Schist 20/09/2012
  • 05e Internal Corner Profiled Metal 20/09/2012
  • 05F Internal Corner Concrete Block 28/11/2013
  • 05B Internal Corner Brick 28/11/2013
  • 05C Internal Corner Bevel-back Weatherboard 28/11/2013
  • 05H Internal Corner Artificial Schist 28/11/2013
  • 05A Internal Corner 28/11/2013

EPS 50 - PARAPETS, GUTTER & DECK DETAILS

  • 9A Ridge Apron Flashing 28/11/2013
  • 24A Rainwater Head Opening 28/11/2013
  • 12B Parapet Timber Wedge 28/11/2013
  • 12A Parapet Metal Capping 28/11/2013
  • 12C Parapet EFIS Wedge 28/11/2013
  • 27A Kickout Flashing (3d View) 28/11/2013
  • 10A Hidden Gutter 28/11/2013
  • 14A Flush Eaves 28/11/2013
  • 24B Deck Overflow 28/11/2013
  • 11A Cantilevered Joists 28/11/2013
  • 13A Balustrade Rail Fixing 20/09/2012
  • 13C Balustrade Junction (3d View) 20/09/2012
  • 13B Balustrade Junction 28/11/2013

EPS 50 - PENETRATIONS & MISCELLANEOUS

  • 25A Meter Box Flashings 28/11/2013
  • 20A Pergola Beam Connection 28/11/2013
  • 15A Pipe Penetration 28/11/2013
  • 21A Wiring Penetration 28/11/2013
  • 19A Fixing Attachments > 5kg 28/11/2013
  • 19B Fixing Attachments < 5kg 28/11/2013
  • 26A Cavity Batten Layout (3d View) 28/11/2013

EPS 50 - SOFFITS

  • 16D Raking Soffit Hidden Flashing 28/11/2013
  • 16B Soffit Edge 28/11/2013
  • 16A Soffit 28/11/2013
  • 16C Raking Soffit Metal Flashing 28/11/2013

EPS 50 - VERTICAL CONTROL JOINTS

  • 17A Vertical Control Joint 28/11/2013
  • 17H Vertical Joint Artificial Stones/Tiles 28/11/2013
  • 17E Vertical Joint Bevel-back Weatherboard 28/11/2013
  • 17C Vertical Joint Brick 28/11/2013
  • 17F Vertical Joint Concrete Block 28/11/2013
  • 17D Vertical Joint Profiled Metal 28/11/2013
  • 17G Vertical Joint Schist 28/11/2013

EPS 50 - WINDOW & DOOR DETAILS

  • 01A Window Head 28/11/2013
  • 03A Window Sill 28/11/2013
  • 02A Window Jamb 28/11/2013
  • 01B Window Head Commercial 28/11/2013
  • 01D Window Head Brick & Thickened Polystyrene 28/11/2013
  • 01C Window Head Brick 28/11/2013
  • 01A Window Head 28/11/2013
  • 22A Garage Door Timber Jamb 28/11/2013
  • 22C Garage Door Head Timber Reveal 28/11/2013
  • 08A Door Sill Timber Floor Framing 28/11/2013
  • 08B Door Sill Concrete Slab 28/11/2013

EPS 50 - FASCIA WALL INTERSECTION

  • ---- Fascia - Wall Intersection

Caviteclad Thermashell 75 mm EIFS System

THERMA 75 - BASE AND EDGE DETAILS

  • 07B Thermashell Timber Subfloor 29/07/2014
  • 07A Thermashell Timber Foundation 29/07/2014
  • 06F Thermashell Rebated Door Sill 01/09/2014
  • 06C Thermashell Concrete Slab Below Ground 29/07/2014
  • 06B Thermashell Rebated Concrete Slab Foundation 29/07/2014
  • 06A Thermashell Concrete Slab Foundation 29/07/2014

THERMA 75 - EXTERNAL CORNER DETAILS

  • 04K Thermashell External Corner Artificial Stone 29/07/2014
  • 04J Thermashell External Corner Schist 29/07/2014
  • 04I Thermashell External Corner Profiled Metal 29/07/2014
  • 04H Thermashell External Corner Rusticated Weatherboard 29/07/2014
  • 04G Thermashell External Corner Bb Weatherboard 29/07/2014
  • 04E Thermashell External Corner Rounded 29/07/2014
  • 04D Thermashell External Corner 29/07/2014

THERMA 75 - HORIZONTAL CONTROL JOINTS

  • 23A Thermashell Inter-storey Joint 29/07/2014
  • 17B Thermashell Horizontal Joint 29/07/2014
  • 18G Thermashell Horizontal Joint Artificial Stone 29/07/2014
  • 18F Thermashell Horizontal Joint Above Schist 29/07/2014
  • 18D Thermashell Horizontal Joint Above Brick Sill 29/07/2014
  • 18C Thermashell Horizontal Joint Above Brick 29/07/2014
  • 18B Thermashell Horizontal Joint Profiled Metal 29/07/2014
  • 18A Thermashell Horizontal Joint Bb Weatherboard 29/07/2014

THERMA 75 - INTERNAL CORNER JUNCTIONS

  • 05H Thermashell Internal Corner Artificial Stone 29/07/2014
  • 05G Thermashell Internal Corner Schist 29/07/2014
  • 05F Thermashell Internal Corner Concrete Block 29/07/2014
  • 05E Thermashell Internal Corner Profiled Metal 29/07/2014
  • 05D Thermashell Internal Corner Rusticated Weatherboard 29/07/2014
  • 05C Thermashell Internal Corner Bb Weatherboard 29/07/2014
  • 05B Thermashell Internal Corner Brick 29/07/2014
  • 05A Thermashell Internal Corner 29/07/2014

THERMA 75 - PARAPETS, GUTTER & DECK DETAILS

  • 27A Thermashell Kickout Flashing 29/07/2014
  • 24B Thermashell Overflow 29/07/2014
  • 24A Thermashell Rainwater Opening 29/07/2014
  • 14A Thermashell Flush Eaves 29/07/2014
  • 13C Thermashell 3d Balustrade Junction 29/07/2014
  • 13B Thermashell Balustrade Junction 29/07/2014
  • 13A Thermashell Balustrade Rail Fixing 29/07/2014
  • 12C Thermashell Plastered Parapet 29/07/2014
  • 12B Thermashell Parapet Metal Cap Wedge 29/07/2014
  • 12A Thermashell Parapet Metal Cap 29/07/2014
  • 11A Thermashell Cantilevered Joists 29/07/2014
  • 10A Thermashell Hidden Gutter 29/07/2014
  • 09B Thermashell Transverse Apron Flashing 29/07/2014
  • 09A Thermashell Apron Flashing 29/07/2014

THERMA 75 - PENETRATIONS & MISCELLANEOUS

  • 26A Thermashell Batten Layout 29/07/2014
  • 25A Thermashell Meter Box 29/07/2014
  • 21A Thermashell Wiring Penetration 29/07/2014
  • 20A Thermashell Beam Connection 29/07/2014
  • 19B Thermashell Lightweight Fixing 29/07/2014
  • 19A Thermashell Attachment Over 5kg 29/07/2014
  • 15A Thermashell Pipe Penetration 29/07/2014

THERMA 75 - SOFFITS

  • 16D Thermashell Raking Soffit Hidden Flashing 29/07/2014
  • 16C Thermashell Raking Soffit Metal Flashing 29/07/2014
  • 16B Thermashell Soffit Edge 29/07/2014
  • 16A Thermashell Soffit 29/07/2014

EPS 50 - VERTICAL CONTROL JOINTS

  • 17H Thermashell Vertical Joint Artificial Stone 29/07/2014
  • 17G Thermashell Vertical Joint Schist 29/07/2014
  • 17F Thermashell Vertical Joint Concrete Block 29/07/2014
  • 17E Thermashell Vertical Joint Bb Weatherboards 29/07/2014
  • 17D Thermashell Vertical Joint Profiled Metal 29/07/2014
  • 17C Thermashell Vertical Joint Brick 29/07/2014
  • 17A Thermashell Vertical Control Joint 29/07/2014

THERMA 75 - WINDOW & DOOR DETAILS

  • 22C Thermashell Garage Door Head 29/07/2014
  • 22A Thermashell Garage Door Jamb 29/07/2014
  • 08B Thermashell Door Sill 29/07/2014
  • 08A Thermashell Door Sill Timber Foundation 29/07/2014
  • 03A Thermashell Window Sill 29/07/2014
  • 02A Thermashell Window Jamb 29/07/2014
  • 01D Thermashell Window Head Thick Eps 29/07/2014
  • 01C Thermashell Window Head Brick 29/07/2014
  • 01B Thermashell Window Head Commercial 29/07/2014
  • 01A Thermashell Window Head 29/07/2014
  • 08B Thermashell Window Head and Sill 29/07/2014

THERMA 75 - FASCIA WALL INTERSECTION

  • --------- Fascia - Wall Intersection

THERMA 75 - JUNCTION BALUSTRADE

  • --------- Junction Balustrade

Consenting instructions

Always refer to the Appraisal in full and the technical literature.

Appraisal holder

Specialized Construction Products Ltd
Address:
Phone: 0800 0800 79

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