Advanced Standard
Eliminate Thermal Breaks
Advanced Standard, a composite post and rail warm roof system engineered to manage condensation risks, maximising thermal performance.
Superior Thermal Performance
Dimond Standard ensures exceptional thermal efficiency, enhancing comfort and energy savings.
Compliance with NZBC H1 Requirements
With various heights, it meets energy efficiency requirements across different Climate Zones in New Zealand.
Condensation Risk Management
Dimond Standard prevents interstitial condensation risks, preserving structure integrity and longevity.
Durability and Compliance
Built to last 50 years, it meets rigorous New Zealand Building Code standards.
Streamlined Construction Timelines
Allows for early close-in, saving time and resources during construction.
Weather-tightness and Compliance
Aligns seamlessly with industry regulations for weather-tightness and compliance.
Aesthetic
Your choice of roof profile including Dimondek 630 clip-fastened roof sheets in continuous lengths up to 90m*.
Straightforward
Easy to install to Building Code requirements using the Metal Roofing Code of Practice; building is closed in quickly enabling sequencing of sub-trades to be optimised. Easy to maintain as the roof sheet can easily be replaced if damaged without disturbing the insulation.
For New Zealand
Designed in New Zealand specifically for the rigors of New Zealand’s environment. New Zealand Building Code compliant to clause E2/AS1 and H1.
Limitations:
- Not intended for installation over a plywood liner.
- Roof pitch meets the minimum required pitch for the selected top sheet product.
All components in Dimond Advanced Roofing Systems are warranted by their individual manufacturer for use in Dimond Advanced Roofing Systems. Component warranties are subject to the terms and conditions set out by the individual manufacturer. Dimond Advanced Roofing Components must be installed, used, and maintained in accordance with the individual manufacturer’s guidelines.
The Role of a Vapour Barrier
The Challenge
In an insulated roof system, the interior surface of the insulation closely matches the internal air temperature, preventing moisture in the air from condensing. However, as warm air moves beyond this surface and through the insulation, it encounters cooler surfaces, leading to condensation. This accumulation of condensation diminishes insulation effectiveness and can result in long-term durability issues for the roof materials.
Dimond Advanced Standard as a solution
Dimond Advanced Standard offers an effective solution to the challenge of condensation in insulated roof systems by incorporating a vapour impermeable layer, which prevents warm air migration and reduces the risk of condensation accumulation.
This comprehensive approach ensures that moisture from warm air does not reach cooler surfaces within the roof structure, thus enhancing the durability and performance of the system over the long term. Additionally, tailored Dimond Post and Rail heights cater to different Climate Zones in New Zealand, meeting energy efficiency requirements while addressing specific environmental challenges. With streamlined construction timelines, supported by early close-in and Liner Deck installation, Dimond Standard provides efficiency and safety benefits.
Aligned with Building Code and NZ Metal Roofing Code of Practice standards, it assures weather-tightness and reliability, boasting a proven track record of over 60 years in the commercial roofing sector. Overall, Dimond Standard delivers thermal and acoustic performance, effective condensation management, and efficient construction programs.
Interact with each component in the 3D render below:
A closer look at Advanced Standard's components.
Dimond Base Sheet:
Dimond Base Sheet is available in either BB900, DP955, LT7, Hi-Five, Styleline & V-Rib in G550, 0.40mm or 0.55mm BMT coated steel sheet.
Spans for walls are limited by Serviceability Limit State wind uplift – Refer to Dimond Technical Manual
*For more information, please refer to Dimond’s website
- Minimum 3° Roof pitch.
- Max purlin spacing as per the profile load span charts.
- Specify coating on steel to match the environment.
- Fix Dimond Base Sheets every 2nd crest into the internal purlin spacings and every crest on sheet ends, using a 12g x 20mm tek (for steel purlins) or a T17x 35mm (for timber purlins).
- Refer to manufacturers' BPIS and installation data. These can be downloaded online at www.dimond.co.nz.
Dimond Lap Seal Tape:
Dimond's Premium Joining Tape is a multi-layered reinforced synthetic tape with a layer of acrylic adhesive on one side of the tape which bonds to common construction substrates.
Dimond Post & Rail System
The Dimond Post & Rail System consists of galvanised bars and supporting brackets which are fixed through the Dimond Base Sheet and into the roof on wall framing.
Refer to manufacturers' BPIS and installation data for more in-depth information on Dimond's Post & Rail System.
*For exceptional site loading conditions and for heights above 250mm advice on performance should be sought from the Dimond Technical Department.
Dimond BIB Insulation
Dimond Advanced Standard's insulated roof system is available in two brands of high-quality BIB insulation board options, Pink Batts or Rockwool Stone.
- Pink® Batts® Building Insulation Blanket, is a lightweight flexible glass wool insulation product.
- ROCKWOOL® stone wool insulation is a thermal and acoustic insulating material made from natural stone fibres.
For further BIB information please refer to manufacturer's BPIS and installation data.
Dimond Underlay
Dimond Advanced Standard underlay offers a choice of Thermakraft Covertek 407 or Pro Clima Solitex Mento 1000 connect.
Refer to manufactures' technical and installation data.
Refer to manufacturers' technical and installation data to ensure most up-to-date information.
Dimond Top Sheet
All Dimond roof profiles can be used as a Dimond Top Sheet and are manufactured out of Pacific Coil Coaters ColorCote or New Zealand Steel COLORSTEEL product.
Product Variations (Thickness, Shape, and General Product Variables)
Refer to Table 2.1A, of the Dimond Technical Manual, which summarises the general base and top Sheet material options available.
Manufactured using different coatings available from Pacific Coilcoaters or New Zealand Steel depending on the durability required for the environment the roof or wall will be installed in, in accordance with AS/NZS 2728. For more information refer to Table 2.1C of the Dimond BPIS Statement downloaded online at www.dimond.co.nz
Refer to environmental literature available from Pacific Coilcoaters or New Zealand Steel or contact Dimond® Roofing on 0800 766 377. Duraclad® is recommended for use in special areas such as fertiliser works or very severe marine.
Fixings
Fix Dimond Base Sheets every 2nd crest into the internal purlin spacings and every crest on sheet ends, using a 12g x 20mm tek (for steel purlins) or a T17x 35mm (for timber purlins).
Fixings for Dimond Post & Rail System are either, 12g x 20mm tek (for steel purlins) or a T17x 35mm (for timber purlins) to secure the post to the substructure.
Fix the Dimond Top Sheet using the appropriate length and fixing patten of 12g or 14g screw through the Dimond Top Sheet and into the Dimond Post & Rail System as per the Dimond BPIS.
Fixings must match or surpass the durability of the material they secure. Additionally, their metal or coating should be compatible with the cladding material if they come into contact. For pre-painted steel products, fasteners must be factory colour-matched before installation.
Screw fasteners need to have adequate length to ensure they penetrate the supporting structure properly. Generally, for screws into timber, a minimum embedment of 30mm is recommended, while screws into steel should engage at least three threads. In severe environments, a minimum Class 4 rating is necessary, whereas very severe environments call for a Class 5 rating.
