JSC VertiClad - Horizontal Cavity System

New Zealand's First Cedar Shiplap System Tested to NZBC E2/AS1 VM1

JSC VertiClad, offers both wrap and rigid air barrier options along with our proprietary batten profile to complete our system.

JSC Timber led the market developing a fully tested horizontal and vertical cavity system for Western Red Cedar in both Vertical Shiplap and Rusticated Cedar Weatherboards formats.

JSC VertiClad is tested to NZBC E2/AS1 VM1 and has a full Producer Statement-Design from an ACE accredited façade engineer.

Vertical Shiplap Weatherboards offer variety and versatility that complements any architectural style, it adapts equally as well to bold expressive modernism or the well defined criteria of period styling. Available in a wide range of standard and architectural profiles that offer amazing architectural potential. Vertical Shiplap is a look that is currently re-defining the NZ coastal landscape.

View Profiles & Fixing Details (or Login Architect Library to Download CAD Drawings)

Friday, 31 August 2018

Tuesday, 22 May 2018

Tuesday, 18 December 2018

Tuesday, 7 March 2017

Monday, 6 March 2017

PDF File IconJSC Profile Chart [1.24 MB - pdf]

Thursday, 27 July 2017

PDF File IconNails Profile [PDF] [88 KB - pdf]

Thursday, 12 April 2018

Thursday, 12 April 2018

JSC VertiClad Cavity System

  • Report: Producer Statement Design PS1 Testing JSC VertiClad System, JSC Timber Vertical Shiplap cavity system to NZBC E2/VM1.
  • Detail Range:  Index JV-C and Index JV-RB
  • Test Report data and technical details available by contacting JSC Architectural Team
    Phone +64 9 412 2800

Residential and light commercial cladding as per NZS3604/E2AS1 direct and cavity fixing.

As per NZS 3617 or Branz Bulletin 411.  Refer JSC Profile Booklet for all available profiles. 

Please note: Profiles are subject to change at any time without notice

As per NZS 3631: 1988   PC1 Premium Clears One  PC2 Premium Clears Two

As per NZS 3602 Class 2 durability for use above ground. In long lengths to profile detailed with species and grading to the requirements of NZS 3602 but with all knots excluded.  To NZS 3602, table 2, Requirements for wood-based building components to achieve a 15-year durability performance.

Band Sawn Face (BSF), Dressed Face (DF) or Sanded

Length Spread
Random length supply up to 6.1, selected lengths available on request.

J40, J41, J42 Dressed profiles 90X19mm, 69X19mm

Nails - Silicone Bronze or Stainless Steel
Silicone Bronze or Stainless Steel fixings to NZBC E2/AS1 Table 24. JSC Rose Head/Pentagon Head/Flat Head Annular Groove Nails.  All nail fixings are to be pre-drilled a minimum of 1mm diameter smaller than the nail gauge.

Refer to JSC Timber for Manufacturer details/correct sizes, fixing details and available options.

Installation:  Fixing Vertical Shiplap Weatherboards
Adjust horizontal set-out to ensure there is a 2mm expansion gap between lapped boards.

Single face fix weatherboards to every fixing point, with nail driven in with a slight (2º+) upward slope, just clear of the lapping edge (30-35mm ) of weatherboard.  DO NOT PIN LAPS OF WEATHERBOARDS.  Line nails horizontally across the boards.

Nails to achieve a minimum 35mm embedment into the framing.

External corners to be weatherproofed by the use of corrosion resistant back flashing and to be used behind the weatherboards at external corners.  Use external corner moulds or coer boards to form external box corners.

Internal corners to be weatherproofed by the use of corrosion resistant back flashing and to be behind the weatherboards at all internal corners.  Use internal corner moulds.

In addition, all cut edges are to be sealed with suitable coating prior to installation and manufacturer's coating schedules adhered to.

Please contact specification@jsctimber.co.nz for a copy of our system documentation.

JSC DuraCedar
JSC specifically developed the 22mm thick weatherboard and fascia range to increase the durability and stability of Western Red Cedar cladding.  JSC Timber recommends DuraCedar where dark stains are to be used.  Read more about JSC DuraCedar.

JSC CedarShield - Factory Applied Coating Systems
JSC CedarShield ensures a consistent application for improved appearance and increased finish life and durability.  Read more about JSC CedarShield.

Please speak with a member of our Specification Team for information on weatherboard profile suitability for stains, dark colours and recommended coating options - ph: 09 412-2800 or specification@jsctimber.co.nz

Masterspec section 4221 Western Red Cedar Cladding


© 2008 JSC Timber  www.jsctimber.co.nz
Website Design by Labyrinth Solutions  |  Content Management by Contegro