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The Building Agency — Cedar Shingles and Shakes
Description

Shingles: The Building Agency (formerly South Pacific Shingles) provide the premium grade of shingles for roofs, gable ends and sidewalls which are all 100% heartwood, 100% clear and 100% edge grain. Available in 406mm or 457mm or 610mm lengths.

Shakes: imbue many of the attractive qualities of shingles, but with a more rustic and natural appeal. They have a hand cut appearance that truly reflect natures random design.

Handsplit Shakes can have split faces and sawn backs. Cedar logs are first cut into desired lengths. Blanks or boards of proper thickness are split and then run diagonally through a bandsaw to produce two tapered shakes from each blank. Available in Premium Grade (100% edge grain) or Number 1 Grade (Up to 20% flat grain allowed in each bundle).

Tapersawn Shakes are sawn both sides Premium and Number 1 Grades are the most common. Premium Grade is 100% edge grain, 100% clear and 100% heartwood. Number 1 Grade allows up to 20% flat grain in each bundle. Number 2 and 3 Grades are also available.

Key Features

Western Red Cedar and Alaskan Yellow Cedar Shingles:

  • Blue Label Premium Grade — for roof and wall application Free of all defects. 100% heartwood. 100% edge grain
  • Blue Label #1 Grade — for roof and wall application Free of all defects. 100% heartwood. Mixed grain permitted
  • Cedar Shakes are a uniform, nominal, length of 610mm with a butt end thickness as noted above and tapering to 2mm
  • Widths of individual shakes are random and vary between 75mm and 270mm
  • Shakes are packed in a standard bundle. Freight calculations can be based on 15 to 20kg and 0.07 m³ per bundle

Western Red Cedar Tapersawn and Handsplit:

  • Stock Line 1: 610mm x 13mm Handsplit-and-Resawn Mediums, having a split face and sawn back
  • Stock Line 2: 610mm x 16mm Tapersawn having a uniform sawn finish on both faces
  • Blue Label Premium Grade — for roof and wall application Free of all defects. 100% heartwood. 100% edge grain
  • Blue Label #1 Grade — for roof and wall application Free of all defects. 100% heartwood. Mixed grain permitted
  • Cedar Shakes are a uniform, nominal, length of 610mm with a butt end thickness as noted above and tapering to 2mm
  • Widths of individual shakes are random and vary between 75mm and 270mm
  • Shakes are packed in a standard bundle. Freight calculations can be based on 15 to 20kg and 0.07 m³ per bundle
Scope of Use
  • Roofing
  • Wall cladding
  • Gables and bay windows
  • Decor cladding
  • Landscape buildings
  • Commercial buildings
  • Residential buildings
  • Suitable for rainwater collection
  • Cedar Shingles will accept most modern paint systems
  • A variety of products are offered for topical application to act as water repellents, mould and moss growth inhibitors, colour retainers and preservatives

For a comprehensive explanation of scope of use for the different Shingle and Shakes please refer to the Technical Manual document.

Limitations on Use
  • Minimum pitch:
    • Timber shingles are a traditional roofing material best suited to a steeply pitched roof
    • It is recommended that they should not be applied to a roof plane pitched lower than 18 degrees
    • Note: For roofing in the range 18° to 30° refer to special requirements for underlay
  • Coverage and exposure: See Technical Manual for table
Statement of Building Code Compliance
  • B1.3.1, B1.3.2, B1.3.3 (a, b, h, m, q), B1.3.4 (a, b, c, d, e) Structure: The Cedar Shingles have been expertly assessed for durability and structural adequacy by Harrison Grierson Consultants (March 2005), A bulletin issued by BRANZ with respect to fixings, substrates and shingles size and laps subject on roof pitch.
  • B2.3.1 (b), B2.3.2 (b) Durability: Treated to H3: CCA or alkaline copper quaternary (ACQ) preservatives with a salt retention of 6.4 kg/m3. Where untreated, historic performance of heartwood Cedar recognised for resistance to decay. Refer Harrison Grierson Consultants (March 2005) opinion of structural adequacy and BRANZ Bulletin Issue 648 with respect to fixings, substrates and shingle size and laps subject on roof pitch. 
  • E2.3.1, E2.3.2, E2.3.7(a, b, c) External moisture: BRANZ Bulletin Issue 648. Review and supply of applicable installation details, based on the international fixing details.
  • F2.3.1 Hazardous building materials: Where treated flash off requirements are met.

Timber shingles are a light weight roof covering in accordance with NZS 3604, The New Zealand Code of Practice for Light Timber Framed Construction.

In-Service History

The Building Agency (formely South Pacific Shingles) has been supplying the New Zealand market for over 35 years.  

Other Performance Attributes

Cedar shakes and shingles manufactured by members of the Cedar Shake & Shingle Bureau (”CSSB”) are the only products labelled with the ”Certi” brand name. Certi-label cedar shakes and shingles are made by experienced craftsmen who take pride in their trade and the quality of their product.

Each bundle of product has the mill’s distinctive Certi-label tucked under the bundle strap. Asking for “the blue label” or “number one blue label” is not specific enough: CSSB members’ products are the only ones with the Certi brand name on the label.

Independent Assessment
Independent Assessment
PASS
PASS
Test Results
Test Results
Documents
Cedar Shingles - PASS - Product Assurance Supplier Statement

V4.4

Cedar Shingles — BPIR Building Products Information Requirements

V1

Cedar Shakes Wall Guide Manual
Cedar Shingles Roof Guide Manual
Cedar Shingles Specification Guide
Brochure
Project Gallery
CAD/PDF Details
Cedar Shakes Wall Guide Manual
Full Set of Drawings
Installation Details
Cedar Shingles Roof Guide Manual

Importer and distributors of shingle roofing, cladding, screening and lining across New Zealand, with brands including Owens Corning, AliClad, Innowood, Equitone, Frontek, and Alucobond.

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